- Added notification service for webhooks

- Added retry delay for rate limit handling
- Added toggle to control whether auto refresh also adds missing episodes to the queue
- Added configurable delay after each dub download
- Changed encoding preset dialog to show a preview of the FFmpeg command
- Changed play sound on queue empty and execute file on completion to be handled by the notification service
- Changed shutdown PC option to disable once triggered
- Fixed crash with queue persistence
- Fixed crash with audio player
- Fixed subscription countdown on the account page

.dockerignore

@@ -0,0 +1,14 @@
+.git
+.idea
+.vs
+_builds
+
+CRD/*
+!CRD/Assets/
+!CRD/Assets/**
+
+docker/*
+!docker/crd.desktop
+!docker/50-crd-shortcuts
+!docker/crd-linux-x64/
+!docker/crd-linux-x64/**

.github/workflows/docker-from-release.yml

@@ -0,0 +1,123 @@
+name: Docker From Release
+
+on:
+  release:
+    types:
+      - published
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: Release tag to build from
+        required: true
+        type: string
+      asset_contains:
+        description: Substring used to find the Linux zip asset
+        required: false
+        default: linux-x64
+        type: string
+
+permissions:
+  contents: read
+  packages: write
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository_owner }}/crunchy-downloader-webtop
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Resolve release asset
+        id: release
+        uses: actions/github-script@v7
+        env:
+          INPUT_TAG: ${{ inputs.tag || '' }}
+          INPUT_ASSET_CONTAINS: ${{ inputs.asset_contains || 'linux-x64' }}
+        with:
+          script: |
+            const tag = context.eventName === "release"
+              ? context.payload.release.tag_name
+              : process.env.INPUT_TAG;
+            const assetContains = context.eventName === "release"
+              ? "linux-x64"
+              : process.env.INPUT_ASSET_CONTAINS;
+
+            const { data: release } = await github.rest.repos.getReleaseByTag({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              tag,
+            });
+
+            const asset = release.assets.find(a =>
+              a.name.toLowerCase().includes(assetContains.toLowerCase()) &&
+              a.name.toLowerCase().endsWith(".zip")
+            );
+
+            if (!asset) {
+              core.setFailed(`No release asset containing "${assetContains}" and ending in .zip was found on ${tag}.`);
+              return;
+            }
+
+            core.setOutput("tag", tag);
+            core.setOutput("asset_name", asset.name);
+            core.setOutput("asset_api_url", asset.url);
+            core.setOutput("is_prerelease", String(release.prerelease));
+
+      - name: Download release zip
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh api -H "Accept: application/octet-stream" "${{ steps.release.outputs.asset_api_url }}" > release.zip
+
+      - name: Stage Docker payload
+        run: |
+          rm -rf docker/crd-linux-x64
+          mkdir -p docker/crd-linux-x64 docker/.tmp-release
+          unzip -q release.zip -d docker/.tmp-release
+          shopt -s dotglob nullglob
+          entries=(docker/.tmp-release/*)
+          if [ ${#entries[@]} -eq 1 ] && [ -d "${entries[0]}" ]; then
+            cp -a "${entries[0]}/." docker/crd-linux-x64/
+          else
+            cp -a docker/.tmp-release/. docker/crd-linux-x64/
+          fi
+          test -f docker/crd-linux-x64/CRD
+          rm -rf docker/.tmp-release
+
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          flavor: |
+            latest=false
+          tags: |
+            type=semver,pattern={{version}},value=${{ steps.release.outputs.tag }}
+            type=raw,value=current
+            type=raw,value=latest,enable=${{ steps.release.outputs.is_prerelease != 'true' }}
+            type=raw,value=stable,enable=${{ steps.release.outputs.is_prerelease != 'true' }}
+
+      - name: Build and push image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile.webtop
+          push: true
+          platforms: linux/amd64
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

CRD/App.axaml.cs

@@ -29,6 +29,7 @@ public class App : Application{
             var isHeadless = Environment.GetCommandLineArgs().Contains("--headless");
 
             var manager = ProgramManager.Instance;
+            QueueManager.Instance.RestorePersistedQueue();
             
             if (!isHeadless){
                 desktop.ShutdownMode = ShutdownMode.OnExplicitShutdown;
@@ -38,7 +39,10 @@ public class App : Application{
                 };
                 
                 mainWindow.Opened += (_, _) => { manager.SetBackgroundImage(); };
-                desktop.Exit += (_, _) => { manager.StopBackgroundTasks(); };
+                desktop.Exit += (_, _) => {
+                    QueueManager.Instance.SaveQueueSnapshot();
+                    manager.StopBackgroundTasks();
+                };
                 QueueManager.Instance.QueueStateChanged += (_, _) => { Dispatcher.UIThread.Post(UpdateTrayTooltip); };
                 
                 if (!CrunchyrollManager.Instance.CrunOptions.StartMinimizedToTray){
@@ -148,7 +152,7 @@ public class App : Application{
     }
     
     public void UpdateTrayTooltip(){
-        var downloadsToProcess = QueueManager.Instance.Queue.Count(e => e.DownloadProgress is{ Done: false, Error: false });
+        var downloadsToProcess = QueueManager.Instance.Queue.Count(e => !e.DownloadProgress.IsFinished);
         
         var options = CrunchyrollManager.Instance.CrunOptions;
         var lastRefresh = ProgramManager.Instance.GetLastRefreshTime();

CRD/Downloader/CalendarManager.cs

@@ -82,7 +82,7 @@ public class CalendarManager{
         request.Headers.Accept.ParseAdd("text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8");
         request.Headers.AcceptEncoding.ParseAdd("gzip, deflate, br");
 
-        (bool IsOk, string ResponseContent, string error) response;
+        (bool IsOk, string ResponseContent, string error, Dictionary<string,string> Headers) response;
         if (!HttpClientReq.Instance.UseFlareSolverr){
             response = await HttpClientReq.Instance.SendHttpRequest(request);
         } else{

CRD/Downloader/Crunchyroll/CRAuth.cs

@@ -13,6 +13,7 @@ using System.Web;
 using CRD.Utils;
 using CRD.Utils.Files;
 using CRD.Utils.Http;
+using CRD.Utils.Notifications;
 using CRD.Utils.Structs;
 using CRD.Utils.Structs.Crunchyroll;
 using CRD.Views;
@@ -22,6 +23,8 @@ using ReactiveUI;
 namespace CRD.Downloader.Crunchyroll;
 
 public class CrAuth(CrunchyrollManager crunInstance, CrAuthSettings authSettings){
+    private static readonly TimeSpan TokenRefreshBuffer = TimeSpan.FromSeconds(60);
+
     public CrToken? Token;
     public CrProfile Profile = new();
     public Subscription? Subscription{ get; set; }
@@ -33,8 +36,11 @@ public class CrAuth(CrunchyrollManager crunInstance, CrAuthSettings authSettings
 
     public Dictionary<string, CookieCollection> cookieStore = new();
 
-    public void Init(){
+    private bool IsTokenExpiredOrNearExpiry(){
+        return Token == null || DateTime.Now >= Token.expires - TokenRefreshBuffer;
+    }
 
+    public void Init(){
         Profile = new CrProfile{
             Username = "???",
             Avatar = "crbrand_avatars_logo_marks_mangagirl_taupe.png",
@@ -406,7 +412,7 @@ public class CrAuth(CrunchyrollManager crunInstance, CrAuthSettings authSettings
 
     public async Task RefreshToken(bool needsToken){
         if (EndpointEnum == CrunchyrollEndpoints.Guest){
-            if (Token != null && !(DateTime.Now > Token.expires)){
+            if (!IsTokenExpiredOrNearExpiry()){
                 return;
             }
 
@@ -418,7 +424,7 @@ public class CrAuth(CrunchyrollManager crunInstance, CrAuthSettings authSettings
             Token.access_token != null && Token.refresh_token == null){
             await AuthAnonymous();
         } else{
-            if (!(DateTime.Now > Token.expires) && needsToken){
+            if (!IsTokenExpiredOrNearExpiry() && needsToken){
                 return;
             }
         }
@@ -427,6 +433,8 @@ public class CrAuth(CrunchyrollManager crunInstance, CrAuthSettings authSettings
             return;
         }
 
+        var hadUserSession = !string.IsNullOrWhiteSpace(Token?.refresh_token) && !string.IsNullOrWhiteSpace(Profile.Username) && Profile.Username != "???";
+
         string uuid = string.IsNullOrEmpty(Token?.device_id) ? Guid.NewGuid().ToString() : Token.device_id;
 
         var formData = new Dictionary<string, string>{
@@ -464,6 +472,9 @@ public class CrAuth(CrunchyrollManager crunInstance, CrAuthSettings authSettings
             JsonTokenToFileAndVariable(response.ResponseContent, uuid);
         } else{
             Console.Error.WriteLine("Refresh Token Auth Failed");
+            if (hadUserSession){
+                await NotificationPublisher.Instance.PublishLoginExpiredAsync(crunInstance.CrunOptions.NotificationSettings, Profile.Username, AuthSettings.Endpoint);
+            }
         }
     }
 }

CRD/Downloader/Crunchyroll/CrMovies.cs

@@ -78,9 +78,7 @@ public class CrMovies{
         epMeta.Image = images.FirstOrDefault()?.FirstOrDefault()?.Source;
         epMeta.ImageBig = images.FirstOrDefault()?.LastOrDefault()?.Source;
         epMeta.DownloadProgress = new DownloadProgress(){
-            IsDownloading = false,
+            State = DownloadState.Queued,
-            Done = false,
-            Error = false,
             Percent = 0,
             Time = 0,
             DownloadSpeedBytes = 0

CRD/Downloader/Crunchyroll/CrMusic.cs

@@ -184,9 +184,7 @@ public class CrMusic{
         epMeta.Image = images.FirstOrDefault()?.Source ?? string.Empty;
         epMeta.ImageBig = images.FirstOrDefault()?.Source ?? string.Empty;
         epMeta.DownloadProgress = new DownloadProgress(){
-            IsDownloading = false,
+            State = DownloadState.Queued,
-            Done = false,
-            Error = false,
             Percent = 0,
             Time = 0,
             DownloadSpeedBytes = 0

CRD/Downloader/Crunchyroll/CrQueue.cs

@@ -0,0 +1,439 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using CRD.Utils;
+using CRD.Utils.Structs;
+using CRD.Utils.Structs.History;
+using CRD.Views;
+using ReactiveUI;
+
+namespace CRD.Downloader.Crunchyroll;
+
+public class CrQueue{
+    
+    
+    public async Task CrAddEpisodeToQueue(string epId, string crLocale, List<string> dubLang, bool updateHistory = false, EpisodeDownloadMode episodeDownloadMode = EpisodeDownloadMode.Default){
+        if (string.IsNullOrEmpty(epId)){
+            return;
+        }
+
+        await CrunchyrollManager.Instance.CrAuthEndpoint1.RefreshToken(true);
+
+        var episodeL = await CrunchyrollManager.Instance.CrEpisode.ParseEpisodeById(epId, crLocale);
+
+
+        if (episodeL != null){
+            if (episodeL.IsPremiumOnly && !CrunchyrollManager.Instance.CrAuthEndpoint1.Profile.HasPremium){
+                MessageBus.Current.SendMessage(new ToastMessage($"Episode is a premium episode – make sure that you are signed in with an account that has an active premium subscription", ToastType.Error, 3));
+                return;
+            }
+
+            var sList = await CrunchyrollManager.Instance.CrEpisode.EpisodeData(episodeL, updateHistory);
+
+            (HistoryEpisode? historyEpisode, List<string> dublist, List<string> sublist, string downloadDirPath, string videoQuality) historyEpisode = (null, [], [], "", "");
+
+            if (CrunchyrollManager.Instance.CrunOptions.History){
+                var variant = sList.EpisodeAndLanguages.Variants.First();
+                historyEpisode = CrunchyrollManager.Instance.History.GetHistoryEpisodeWithDubListAndDownloadDir(variant.Item.SeriesId, variant.Item.SeasonId, variant.Item.Id);
+                if (historyEpisode.dublist.Count > 0){
+                    dubLang = historyEpisode.dublist;
+                }
+            }
+
+
+            var selected = CrunchyrollManager.Instance.CrEpisode.EpisodeMeta(sList, dubLang);
+
+            if (CrunchyrollManager.Instance.CrunOptions.IncludeVideoDescription){
+                if (selected.Data is{ Count: > 0 }){
+                    var episode = await CrunchyrollManager.Instance.CrEpisode.ParseEpisodeById(selected.Data.First().MediaId,
+                        string.IsNullOrEmpty(CrunchyrollManager.Instance.CrunOptions.DescriptionLang) ? CrunchyrollManager.Instance.DefaultLocale : CrunchyrollManager.Instance.CrunOptions.DescriptionLang, true);
+                    selected.Description = episode?.Description ?? selected.Description;
+                }
+            }
+
+            if (selected.Data is{ Count: > 0 }){
+                if (CrunchyrollManager.Instance.CrunOptions.History){
+                    // var historyEpisode = CrHistory.GetHistoryEpisodeWithDownloadDir(selected.ShowId, selected.SeasonId, selected.Data.First().MediaId);
+                    if (CrunchyrollManager.Instance.CrunOptions.SonarrProperties is{ SonarrEnabled: true, UseSonarrNumbering: true }){
+                        if (historyEpisode.historyEpisode != null){
+                            if (!string.IsNullOrEmpty(historyEpisode.historyEpisode.SonarrEpisodeNumber)){
+                                selected.EpisodeNumber = historyEpisode.historyEpisode.SonarrEpisodeNumber;
+                            }
+
+                            if (!string.IsNullOrEmpty(historyEpisode.historyEpisode.SonarrSeasonNumber)){
+                                selected.Season = historyEpisode.historyEpisode.SonarrSeasonNumber;
+                            }
+                        }
+                    }
+
+                    if (!string.IsNullOrEmpty(historyEpisode.downloadDirPath)){
+                        selected.DownloadPath = historyEpisode.downloadDirPath;
+                    }
+                }
+
+                selected.VideoQuality = !string.IsNullOrEmpty(historyEpisode.videoQuality) ? historyEpisode.videoQuality : CrunchyrollManager.Instance.CrunOptions.QualityVideo;
+
+                selected.DownloadSubs = historyEpisode.sublist.Count > 0 ? historyEpisode.sublist : CrunchyrollManager.Instance.CrunOptions.DlSubs;
+
+                selected.OnlySubs = episodeDownloadMode == EpisodeDownloadMode.OnlySubs;
+
+                if (CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub && selected.Data.Count > 1){
+                    var sortedMetaData = selected.Data
+                        .OrderBy(metaData => {
+                            var locale = metaData.Lang?.CrLocale ?? string.Empty;
+                            var index = dubLang.IndexOf(locale);
+                            return index != -1 ? index : int.MaxValue;
+                        })
+                        .ToList();
+
+                    if (sortedMetaData.Count != 0){
+                        var first = sortedMetaData.First();
+                        selected.Data = [first];
+                        selected.SelectedDubs = [first.Lang?.CrLocale ?? string.Empty];
+                    }
+                }
+
+                var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
+
+                if (newOptions == null){
+                    Console.Error.WriteLine("Failed to create a copy of your current settings");
+                    MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode to the queue, check the logs", ToastType.Error, 2));
+                    return;
+                }
+
+                switch (episodeDownloadMode){
+                    case EpisodeDownloadMode.OnlyVideo:
+                        newOptions.Novids = false;
+                        newOptions.Noaudio = true;
+                        selected.DownloadSubs = ["none"];
+                        break;
+                    case EpisodeDownloadMode.OnlyAudio:
+                        newOptions.Novids = true;
+                        newOptions.Noaudio = false;
+                        selected.DownloadSubs = ["none"];
+                        break;
+                    case EpisodeDownloadMode.OnlySubs:
+                        newOptions.Novids = true;
+                        newOptions.Noaudio = true;
+                        break;
+                    case EpisodeDownloadMode.Default:
+                    default:
+                        break;
+                }
+
+                if (!selected.DownloadSubs.Contains("none") && selected.DownloadSubs.All(item => (selected.AvailableSubs ?? []).Contains(item))){
+                    if (!(selected.Data.Count < dubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub)){
+                        selected.HighlightAllAvailable = true;
+                    }
+                }
+
+                if (newOptions.DownloadOnlyWithAllSelectedDubSub){
+                    if (!selected.DownloadSubs.Contains("none") && !selected.DownloadSubs.Contains("all") && !selected.DownloadSubs.All(item => (selected.AvailableSubs ?? []).Contains(item))){
+                        //missing subs
+                        Console.Error.WriteLine($"Episode not added because of missing subs - {selected.SeasonTitle} - Season {selected.Season} - {selected.EpisodeTitle}");
+                        return;
+                    }
+
+                    if (selected.Data.Count < dubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub){
+                        //missing dubs
+                        Console.Error.WriteLine($"Episode not added because of missing dubs - {selected.SeasonTitle} - Season {selected.Season} - {selected.EpisodeTitle}");
+                        return;
+                    }
+                }
+
+                newOptions.DubLang = dubLang;
+
+                selected.DownloadSettings = newOptions;
+
+                QueueManager.Instance.AddToQueue(selected);
+
+
+                if (selected.Data.Count < dubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub){
+                    Console.WriteLine("Added Episode to Queue but couldn't find all selected dubs");
+                    Console.Error.WriteLine("Added Episode to Queue but couldn't find all selected dubs - Available dubs/subs: ");
+
+                    var languages = sList.EpisodeAndLanguages.Variants
+                        .Select(v => $"{(v.Item.IsPremiumOnly ? "+ " : "")}{v.Lang.CrLocale}")
+                        .ToArray();
+
+                    Console.Error.WriteLine(
+                        $"{selected.SeasonTitle} - Season {selected.Season} - {selected.EpisodeTitle} dubs - [{string.Join(", ", languages)}] subs - [{string.Join(", ", selected.AvailableSubs ?? [])}]");
+                    MessageBus.Current.SendMessage(new ToastMessage($"Added episode to the queue but couldn't find all selected dubs", ToastType.Warning, 2));
+                } else{
+                    Console.WriteLine("Added Episode to Queue");
+                    MessageBus.Current.SendMessage(new ToastMessage($"Added episode to the queue", ToastType.Information, 1));
+                }
+            } else{
+                Console.WriteLine("Episode couldn't be added to Queue");
+                Console.Error.WriteLine("Episode couldn't be added to Queue - Available dubs/subs: ");
+
+                var languages = sList.EpisodeAndLanguages.Variants
+                    .Select(v => $"{(v.Item.IsPremiumOnly ? "+ " : "")}{v.Lang.CrLocale}")
+                    .ToArray();
+
+                Console.Error.WriteLine($"{selected.SeasonTitle} - Season {selected.Season} - {selected.EpisodeTitle} dubs - [{string.Join(", ", languages)}] subs - [{string.Join(", ", selected.AvailableSubs ?? [])}]");
+                if (!CrunchyrollManager.Instance.CrunOptions.DownloadOnlyWithAllSelectedDubSub){
+                    MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode to the queue with current dub settings", ToastType.Error, 2));
+                }
+            }
+
+            return;
+        }
+
+        Console.WriteLine("Couldn't find episode trying to find movie with id");
+
+        var movie = await CrunchyrollManager.Instance.CrMovies.ParseMovieById(epId, crLocale);
+
+        if (movie != null){
+            var movieMeta = CrunchyrollManager.Instance.CrMovies.EpisodeMeta(movie, dubLang);
+
+            if (movieMeta != null){
+                movieMeta.DownloadSubs = CrunchyrollManager.Instance.CrunOptions.DlSubs;
+                movieMeta.OnlySubs = episodeDownloadMode == EpisodeDownloadMode.OnlySubs;
+
+                var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
+
+                if (newOptions == null){
+                    Console.Error.WriteLine("Failed to create a copy of your current settings");
+                    MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode to the queue, check the logs", ToastType.Error, 2));
+                    return;
+                }
+
+                switch (episodeDownloadMode){
+                    case EpisodeDownloadMode.OnlyVideo:
+                        newOptions.Novids = false;
+                        newOptions.Noaudio = true;
+                        movieMeta.DownloadSubs = ["none"];
+                        break;
+                    case EpisodeDownloadMode.OnlyAudio:
+                        newOptions.Novids = true;
+                        newOptions.Noaudio = false;
+                        movieMeta.DownloadSubs = ["none"];
+                        break;
+                    case EpisodeDownloadMode.OnlySubs:
+                        newOptions.Novids = true;
+                        newOptions.Noaudio = true;
+                        break;
+                    case EpisodeDownloadMode.Default:
+                    default:
+                        break;
+                }
+
+                newOptions.DubLang = dubLang;
+
+                movieMeta.DownloadSettings = newOptions;
+
+                movieMeta.VideoQuality = CrunchyrollManager.Instance.CrunOptions.QualityVideo;
+
+                if (newOptions.DownloadOnlyWithAllSelectedDubSub){
+                    if (!movieMeta.DownloadSubs.Contains("none") && !movieMeta.DownloadSubs.Contains("all") && !movieMeta.DownloadSubs.All(item => (movieMeta.AvailableSubs ?? []).Contains(item))){
+                        //missing subs
+                        Console.Error.WriteLine($"Episode not added because of missing subs - {movieMeta.SeasonTitle} - Season {movieMeta.Season} - {movieMeta.EpisodeTitle}");
+                        return;
+                    }
+
+                    if (movieMeta.Data.Count < dubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub){
+                        //missing dubs
+                        Console.Error.WriteLine($"Episode not added because of missing dubs - {movieMeta.SeasonTitle} - Season {movieMeta.Season} - {movieMeta.EpisodeTitle}");
+                        return;
+                    }
+                }
+
+                QueueManager.Instance.AddToQueue(movieMeta);
+
+                Console.WriteLine("Added Movie to Queue");
+                MessageBus.Current.SendMessage(new ToastMessage($"Added Movie to Queue", ToastType.Information, 1));
+                return;
+            }
+        }
+
+        Console.Error.WriteLine($"No episode or movie found with the id: {epId}");
+        MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode to the queue - No episode or movie found with the id: {epId}", ToastType.Error, 3));
+    }
+
+
+    public void CrAddMusicMetaToQueue(CrunchyEpMeta epMeta){
+        var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
+        epMeta.DownloadSettings = newOptions;
+
+        QueueManager.Instance.AddToQueue(epMeta);
+        MessageBus.Current.SendMessage(new ToastMessage($"Added episode to the queue", ToastType.Information, 1));
+    }
+
+    public async Task CrAddMusicVideoToQueue(string epId, string overrideDownloadPath = ""){
+        await CrunchyrollManager.Instance.CrAuthEndpoint1.RefreshToken(true);
+
+        var musicVideo = await CrunchyrollManager.Instance.CrMusic.ParseMusicVideoByIdAsync(epId, "");
+
+        if (musicVideo != null){
+            var musicVideoMeta = CrunchyrollManager.Instance.CrMusic.EpisodeMeta(musicVideo);
+
+            (HistoryEpisode? historyEpisode, List<string> dublist, List<string> sublist, string downloadDirPath, string videoQuality) historyEpisode = (null, [], [], "", "");
+
+            if (CrunchyrollManager.Instance.CrunOptions.History){
+                historyEpisode = CrunchyrollManager.Instance.History.GetHistoryEpisodeWithDubListAndDownloadDir(musicVideoMeta.SeriesId, musicVideoMeta.SeasonId, musicVideoMeta.Data.First().MediaId);
+            }
+
+            musicVideoMeta.DownloadPath = !string.IsNullOrEmpty(overrideDownloadPath) ? overrideDownloadPath : (!string.IsNullOrEmpty(historyEpisode.downloadDirPath) ? historyEpisode.downloadDirPath : "");
+            musicVideoMeta.VideoQuality = !string.IsNullOrEmpty(historyEpisode.videoQuality) ? historyEpisode.videoQuality : CrunchyrollManager.Instance.CrunOptions.QualityVideo;
+
+            var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
+            musicVideoMeta.DownloadSettings = newOptions;
+
+            QueueManager.Instance.AddToQueue(musicVideoMeta);
+            MessageBus.Current.SendMessage(new ToastMessage($"Added music video to the queue", ToastType.Information, 1));
+        }
+    }
+
+    public async Task CrAddConcertToQueue(string epId, string overrideDownloadPath = ""){
+        await CrunchyrollManager.Instance.CrAuthEndpoint1.RefreshToken(true);
+
+        var concert = await CrunchyrollManager.Instance.CrMusic.ParseConcertByIdAsync(epId, "");
+
+        if (concert != null){
+            var concertMeta = CrunchyrollManager.Instance.CrMusic.EpisodeMeta(concert);
+
+            (HistoryEpisode? historyEpisode, List<string> dublist, List<string> sublist, string downloadDirPath, string videoQuality) historyEpisode = (null, [], [], "", "");
+
+            if (CrunchyrollManager.Instance.CrunOptions.History){
+                historyEpisode = CrunchyrollManager.Instance.History.GetHistoryEpisodeWithDubListAndDownloadDir(concertMeta.SeriesId, concertMeta.SeasonId, concertMeta.Data.First().MediaId);
+            }
+
+            concertMeta.DownloadPath = !string.IsNullOrEmpty(overrideDownloadPath) ? overrideDownloadPath : (!string.IsNullOrEmpty(historyEpisode.downloadDirPath) ? historyEpisode.downloadDirPath : "");
+            concertMeta.VideoQuality = !string.IsNullOrEmpty(historyEpisode.videoQuality) ? historyEpisode.videoQuality : CrunchyrollManager.Instance.CrunOptions.QualityVideo;
+
+            var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
+            concertMeta.DownloadSettings = newOptions;
+
+            QueueManager.Instance.AddToQueue(concertMeta);
+            MessageBus.Current.SendMessage(new ToastMessage($"Added concert to the queue", ToastType.Information, 1));
+        }
+    }
+
+
+    public async Task CrAddSeriesToQueue(CrunchySeriesList list, CrunchyMultiDownload data){
+        var selected = CrunchyrollManager.Instance.CrSeries.ItemSelectMultiDub(list.Data, data.DubLang, data.AllEpisodes, data.E);
+
+        var failed = false;
+        var partialAdd = false;
+
+
+        foreach (var crunchyEpMeta in selected.Values.ToList()){
+            if (crunchyEpMeta.Data.FirstOrDefault() != null){
+                if (CrunchyrollManager.Instance.CrunOptions.History){
+                    var historyEpisode = CrunchyrollManager.Instance.History.GetHistoryEpisodeWithDownloadDir(crunchyEpMeta.SeriesId, crunchyEpMeta.SeasonId, crunchyEpMeta.Data.First().MediaId);
+                    if (CrunchyrollManager.Instance.CrunOptions.SonarrProperties is{ SonarrEnabled: true, UseSonarrNumbering: true }){
+                        if (historyEpisode.historyEpisode != null){
+                            if (!string.IsNullOrEmpty(historyEpisode.historyEpisode.SonarrEpisodeNumber)){
+                                crunchyEpMeta.EpisodeNumber = historyEpisode.historyEpisode.SonarrEpisodeNumber;
+                            }
+
+                            if (!string.IsNullOrEmpty(historyEpisode.historyEpisode.SonarrSeasonNumber)){
+                                crunchyEpMeta.Season = historyEpisode.historyEpisode.SonarrSeasonNumber;
+                            }
+                        }
+                    }
+
+                    if (!string.IsNullOrEmpty(historyEpisode.downloadDirPath)){
+                        crunchyEpMeta.DownloadPath = historyEpisode.downloadDirPath;
+                    }
+                }
+
+                if (CrunchyrollManager.Instance.CrunOptions.IncludeVideoDescription){
+                    if (crunchyEpMeta.Data is{ Count: > 0 }){
+                        var episode = await CrunchyrollManager.Instance.CrEpisode.ParseEpisodeById(crunchyEpMeta.Data.First().MediaId,
+                            string.IsNullOrEmpty(CrunchyrollManager.Instance.CrunOptions.DescriptionLang) ? CrunchyrollManager.Instance.DefaultLocale : CrunchyrollManager.Instance.CrunOptions.DescriptionLang, true);
+                        crunchyEpMeta.Description = episode?.Description ?? crunchyEpMeta.Description;
+                    }
+                }
+
+                var subLangList = CrunchyrollManager.Instance.History.GetSubList(crunchyEpMeta.SeriesId, crunchyEpMeta.SeasonId);
+
+                crunchyEpMeta.VideoQuality = !string.IsNullOrEmpty(subLangList.videoQuality) ? subLangList.videoQuality : CrunchyrollManager.Instance.CrunOptions.QualityVideo;
+                crunchyEpMeta.DownloadSubs = subLangList.sublist.Count > 0 ? subLangList.sublist : CrunchyrollManager.Instance.CrunOptions.DlSubs;
+
+
+                if (CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub && crunchyEpMeta.Data.Count > 1){
+                    var sortedMetaData = crunchyEpMeta.Data
+                        .OrderBy(metaData => {
+                            var locale = metaData.Lang?.CrLocale ?? string.Empty;
+                            var index = data.DubLang.IndexOf(locale);
+                            return index != -1 ? index : int.MaxValue;
+                        })
+                        .ToList();
+
+                    if (sortedMetaData.Count != 0){
+                        var first = sortedMetaData.First();
+                        crunchyEpMeta.Data = [first];
+                        crunchyEpMeta.SelectedDubs = [first.Lang?.CrLocale ?? string.Empty];
+                    }
+                }
+
+                var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
+
+                if (newOptions == null){
+                    Console.Error.WriteLine("Failed to create a copy of your current settings");
+                    MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode to the queue, check the logs", ToastType.Error, 2));
+                    return;
+                }
+
+                if (crunchyEpMeta.OnlySubs){
+                    newOptions.Novids = true;
+                    newOptions.Noaudio = true;
+                }
+
+                newOptions.DubLang = data.DubLang;
+
+                crunchyEpMeta.DownloadSettings = newOptions;
+
+                if (!crunchyEpMeta.DownloadSubs.Contains("none") && crunchyEpMeta.DownloadSubs.All(item => (crunchyEpMeta.AvailableSubs ?? []).Contains(item))){
+                    if (!(crunchyEpMeta.Data.Count < data.DubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub)){
+                        crunchyEpMeta.HighlightAllAvailable = true;
+                    }
+                }
+
+                if (newOptions.DownloadOnlyWithAllSelectedDubSub){
+                    if (!crunchyEpMeta.DownloadSubs.Contains("none") && !crunchyEpMeta.DownloadSubs.Contains("all") && !crunchyEpMeta.DownloadSubs.All(item => (crunchyEpMeta.AvailableSubs ?? []).Contains(item))){
+                        //missing subs
+                        Console.Error.WriteLine($"Episode not added because of missing subs - {crunchyEpMeta.SeasonTitle} - Season {crunchyEpMeta.Season} - {crunchyEpMeta.EpisodeTitle}");
+                        continue;
+                    }
+
+                    if (crunchyEpMeta.Data.Count < data.DubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub){
+                        //missing dubs
+                        Console.Error.WriteLine($"Episode not added because of missing dubs - {crunchyEpMeta.SeasonTitle} - Season {crunchyEpMeta.Season} - {crunchyEpMeta.EpisodeTitle}");
+                        continue;
+                    }
+                }
+
+                QueueManager.Instance.AddToQueue(crunchyEpMeta);
+
+                if (crunchyEpMeta.Data.Count < data.DubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub){
+                    Console.WriteLine("Added Episode to Queue but couldn't find all selected dubs");
+                    Console.Error.WriteLine("Added Episode to Queue but couldn't find all selected dubs - Available dubs/subs: ");
+
+                    partialAdd = true;
+
+                    var languages = (crunchyEpMeta.Data.First().Versions ?? []).Select(version => $"{(version.IsPremiumOnly ? "+ " : "")}{version.AudioLocale}").ToArray();
+
+                    Console.Error.WriteLine(
+                        $"{crunchyEpMeta.SeasonTitle} - Season {crunchyEpMeta.Season} - {crunchyEpMeta.EpisodeTitle} dubs - [{string.Join(", ", languages)}] subs - [{string.Join(", ", crunchyEpMeta.AvailableSubs ?? [])}]");
+                    MessageBus.Current.SendMessage(new ToastMessage($"Added episode to the queue but couldn't find all selected dubs", ToastType.Warning, 2));
+                }
+            } else{
+                failed = true;
+            }
+        }
+
+        if (failed && !partialAdd){
+            MainWindow.Instance.ShowError("Not all episodes could be added – make sure that you are signed in with an account that has an active premium subscription?");
+        } else if (selected.Values.Count > 0 && !partialAdd){
+            MessageBus.Current.SendMessage(new ToastMessage($"Added episodes to the queue", ToastType.Information, 1));
+        } else if (!partialAdd){
+            MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode(s) to the queue with current dub settings", ToastType.Error, 2));
+        }
+    }
+    
+}

CRD/Downloader/Crunchyroll/CrunchyrollManager.cs

@@ -22,12 +22,14 @@ using CRD.Utils.Muxing;
 using CRD.Utils.Muxing.Fonts;
 using CRD.Utils.Muxing.Structs;
 using CRD.Utils.Muxing.Syncing;
+using CRD.Utils.Notifications;
 using CRD.Utils.Parser;
 using CRD.Utils.Sonarr;
 using CRD.Utils.Sonarr.Models;
 using CRD.Utils.Structs;
 using CRD.Utils.Structs.Crunchyroll;
 using CRD.Utils.Structs.History;
+using CRD.Utils.Updater;
 using CRD.ViewModels;
 using CRD.ViewModels.Utils;
 using CRD.Views;
@@ -76,6 +78,8 @@ public class CrunchyrollManager{
     public CrSeries CrSeries;
     public CrMovies CrMovies;
     public CrMusic CrMusic;
+    public CrQueue CrQueue;
+
     public History History;
 
     #region Singelton
@@ -110,11 +114,13 @@ public class CrunchyrollManager{
         options.UseCrBetaApi = true;
         options.AutoDownload = false;
         options.RemoveFinishedDownload = false;
+        options.PersistQueue = false;
         options.Chapters = true;
         options.Hslang = "none";
         options.Force = "Y";
         options.FileName = "${seriesTitle} - S${season}E${episode} [${height}p]";
         options.Partsize = 10;
+        options.DubDownloadDelaySeconds = 0;
         options.DlSubs = new List<string>{ "en-US" };
         options.SkipMuxing = false;
         options.MkvmergeOptions = [];
@@ -127,6 +133,8 @@ public class CrunchyrollManager{
         options.CcSubsFont = "Trebuchet MS";
         options.RetryDelay = 5;
         options.RetryAttempts = 5;
+        options.PlaybackRateLimitRetryDelaySeconds = 30;
+        options.RetryMaxDelaySeconds = 3600;
         options.Numbers = 2;
         options.Timeout = 15000;
         options.DubLang = new List<string>(){ "ja-JP" };
@@ -158,11 +166,13 @@ public class CrunchyrollManager{
         };
 
         options.History = true;
+        options.HistoryRemoveMissingEpisodes = true;
 
         options.HistoryAutoRefreshMode = HistoryRefreshMode.FastNewReleases;
         options.HistoryAutoRefreshIntervalMinutes = 0;
 
         CfgManager.UpdateSettingsFromFile(options, CfgManager.PathCrDownloadOptions);
+        options.NormalizeNotificationSettings();
 
         return options;
     }
@@ -182,6 +192,7 @@ public class CrunchyrollManager{
         CrSeries = new CrSeries();
         CrMovies = new CrMovies();
         CrMusic = new CrMusic();
+        CrQueue = new CrQueue();
         History = new History();
     }
 
@@ -236,29 +247,94 @@ public class CrunchyrollManager{
         };
 
         
-        if (CrunOptions.StreamEndpoint == null){
+        var ghAuth = Updater.Instance.GhAuthJson;
-            CrunOptions.StreamEndpoint = DefaultAndroidTvAuthSettings;
+        var ghAuthTv = ghAuth.FirstOrDefault(e => e.Type.Equals("tv"));
-        } else if (CrunOptions.StreamEndpoint.UseDefault){
+        var ghAuthMobile = ghAuth.FirstOrDefault(e => e.Type.Equals("mobile"));
-            CrunOptions.StreamEndpoint.Authorization = DefaultAndroidTvAuthSettings.Authorization;
+
-            CrunOptions.StreamEndpoint.UserAgent = DefaultAndroidTvAuthSettings.UserAgent;
+        //---------- TV ----------
+        CrunOptions.StreamEndpoint ??= new CrAuthSettings{
+            Authorization = DefaultAndroidTvAuthSettings.Authorization,
+            UserAgent = DefaultAndroidTvAuthSettings.UserAgent,
+            Device_name = DefaultAndroidTvAuthSettings.Device_name,
+            Device_type = DefaultAndroidTvAuthSettings.Device_type,
+            UseDefault = true
+        };
+
+
+        if (CrunOptions.StreamEndpoint.UseDefault){
+            var streamEndpointAuthorization = DefaultAndroidTvAuthSettings.Authorization;
+            var streamEndpointUserAgent = DefaultAndroidTvAuthSettings.UserAgent;
+
+            if (!string.IsNullOrEmpty(CrunOptions.StreamEndpoint.Authorization) &&
+                !string.IsNullOrEmpty(CrunOptions.StreamEndpoint.UserAgent) &&
+                Helpers.CompareClientVersions(
+                    Helpers.ExtractClientVersion(CrunOptions.StreamEndpoint.UserAgent),
+                    Helpers.ExtractClientVersion(streamEndpointUserAgent)) > 0){
+                streamEndpointAuthorization = CrunOptions.StreamEndpoint.Authorization;
+                streamEndpointUserAgent = CrunOptions.StreamEndpoint.UserAgent;
+            }
+
+            if (ghAuthTv != null &&
+                !string.IsNullOrEmpty(ghAuthTv.Authorization) &&
+                !string.IsNullOrEmpty(ghAuthTv.VersionName) &&
+                Helpers.CompareClientVersions(ghAuthTv.VersionName, Helpers.ExtractClientVersion(streamEndpointUserAgent)) > 0){
+                streamEndpointAuthorization = ghAuthTv.Authorization;
+                streamEndpointUserAgent = $"ANDROIDTV/{ghAuthTv.VersionName} Android/16";
+            }
+
+            CrunOptions.StreamEndpoint.Authorization = streamEndpointAuthorization;
+            CrunOptions.StreamEndpoint.UserAgent = streamEndpointUserAgent;
             CrunOptions.StreamEndpoint.Device_name = DefaultAndroidTvAuthSettings.Device_name;
             CrunOptions.StreamEndpoint.Device_type = DefaultAndroidTvAuthSettings.Device_type;
         }
 
+
         CrunOptions.StreamEndpoint.Endpoint = "tv/android_tv";
         CrAuthEndpoint1.AuthSettings = CrunOptions.StreamEndpoint;
 
-        if (CrunOptions.StreamEndpointSecondSettings == null){
+        //---------- TV ----------
-            CrunOptions.StreamEndpointSecondSettings = DefaultAndroidAuthSettings;
+
-        } else if (CrunOptions.StreamEndpointSecondSettings.UseDefault){
+
-            CrunOptions.StreamEndpointSecondSettings.Authorization = DefaultAndroidAuthSettings.Authorization;
+        //---------- Mobile ----------
-            CrunOptions.StreamEndpointSecondSettings.UserAgent = DefaultAndroidAuthSettings.UserAgent;
+        CrunOptions.StreamEndpointSecondSettings ??= new CrAuthSettings{
+            Authorization = DefaultAndroidAuthSettings.Authorization,
+            UserAgent = DefaultAndroidAuthSettings.UserAgent,
+            Device_name = DefaultAndroidAuthSettings.Device_name,
+            Device_type = DefaultAndroidAuthSettings.Device_type,
+            UseDefault = true
+        };
+
+        if (CrunOptions.StreamEndpointSecondSettings.UseDefault){
+            var streamEndpointSecondAuthorization = DefaultAndroidAuthSettings.Authorization;
+            var streamEndpointSecondUserAgent = DefaultAndroidAuthSettings.UserAgent;
+
+            if (!string.IsNullOrEmpty(CrunOptions.StreamEndpointSecondSettings.Authorization) &&
+                !string.IsNullOrEmpty(CrunOptions.StreamEndpointSecondSettings.UserAgent) &&
+                Helpers.CompareClientVersions(
+                    Helpers.ExtractClientVersion(CrunOptions.StreamEndpointSecondSettings.UserAgent),
+                    Helpers.ExtractClientVersion(streamEndpointSecondUserAgent)) > 0){
+                streamEndpointSecondAuthorization = CrunOptions.StreamEndpointSecondSettings.Authorization;
+                streamEndpointSecondUserAgent = CrunOptions.StreamEndpointSecondSettings.UserAgent;
+            }
+
+            if (ghAuthMobile != null &&
+                !string.IsNullOrEmpty(ghAuthMobile.Authorization) &&
+                !string.IsNullOrEmpty(ghAuthMobile.VersionName) &&
+                Helpers.CompareClientVersions(ghAuthMobile.VersionName, Helpers.ExtractClientVersion(streamEndpointSecondUserAgent)) > 0){
+                streamEndpointSecondAuthorization = ghAuthMobile.Authorization;
+                streamEndpointSecondUserAgent = $"Crunchyroll/{ghAuthMobile.VersionName} Android/16 okhttp/4.12.0";
+            }
+
+            CrunOptions.StreamEndpointSecondSettings.Authorization = streamEndpointSecondAuthorization;
+            CrunOptions.StreamEndpointSecondSettings.UserAgent = streamEndpointSecondUserAgent;
             CrunOptions.StreamEndpointSecondSettings.Device_name = DefaultAndroidAuthSettings.Device_name;
             CrunOptions.StreamEndpointSecondSettings.Device_type = DefaultAndroidAuthSettings.Device_type;
         }
 
         CrAuthEndpoint2.AuthSettings = CrunOptions.StreamEndpointSecondSettings;
 
+        //---------- Mobile ----------
+
         await CrAuthEndpoint1.Auth();
         if (!string.IsNullOrEmpty(CrAuthEndpoint2.AuthSettings.Endpoint)){
             await CrAuthEndpoint2.Auth();
@@ -337,15 +413,16 @@ public class CrunchyrollManager{
             QueueManager.Instance.ReleaseDownloadSlot(data);
         }
 
+        int retryAttemptCount = data.DownloadProgress.RetryAttemptCount;
         data.DownloadProgress = new DownloadProgress(){
-            IsDownloading = true,
+            State = DownloadState.Downloading,
-            Error = false,
             Percent = 0,
             Time = 0,
             DownloadSpeedBytes = 0,
-            Doing = "Starting"
+            Doing = "Starting",
+            RetryAttemptCount = retryAttemptCount
         };
-        QueueManager.Instance.Queue.Refresh();
+        QueueManager.Instance.RefreshQueue();
         var res = new DownloadResponse();
         try{
             res = await DownloadMediaList(data, options);
@@ -354,18 +431,31 @@ public class CrunchyrollManager{
             res.Error = true;
         }
 
+        if (res.RetrySuggested){
+            ReleaseDownloadSlotIfHeld();
+            var retryDelay = TimeSpan.FromSeconds(Math.Max(1, res.RetryDelaySeconds));
+            QueueManager.Instance.BlockAutoDownloadUntil(retryDelay, data.Cts.Token);
+            QueueManager.Instance.ScheduleRetry(
+                data,
+                retryDelay,
+                $"Rate limited by playback API. Retrying in {(int)retryDelay.TotalSeconds}s",
+                data.Cts.Token);
+            return false;
+        }
+
+        data.DownloadProgress.ClearRetryState();
 
         if (res.Error){
             ReleaseDownloadSlotIfHeld();
             data.DownloadProgress = new DownloadProgress(){
-                IsDownloading = false,
+                State = DownloadState.Error,
-                Error = true,
                 Percent = 100,
                 Time = 0,
                 DownloadSpeedBytes = 0,
                 Doing = "Download Error" + (!string.IsNullOrEmpty(res.ErrorText) ? " - " + res.ErrorText : ""),
             };
-            QueueManager.Instance.Queue.Refresh();
+            QueueManager.Instance.RefreshQueue();
+            await NotificationPublisher.Instance.PublishDownloadFailedAsync(CrunOptions.NotificationSettings, data, res.ErrorText);
             return false;
         }
 
@@ -373,13 +463,13 @@ public class CrunchyrollManager{
             if (options.DownloadAllowEarlyStart){
                 ReleaseDownloadSlotIfHeld();
                 data.DownloadProgress = new DownloadProgress(){
-                    IsDownloading = true,
+                    State = DownloadState.Processing,
                     Percent = 100,
                     Time = 0,
                     DownloadSpeedBytes = 0,
                     Doing = "Waiting for Muxing/Encoding"
                 };
-                QueueManager.Instance.Queue.Refresh();
+                QueueManager.Instance.RefreshQueue();
                 await QueueManager.Instance.WaitForProcessingSlotAsync(data.Cts.Token);
                 processingSlotHeld = true;
             }
@@ -389,16 +479,17 @@ public class CrunchyrollManager{
                 bool syncError = false;
                 bool muxError = false;
                 var notSyncedDubs = "";
+                var fallbackUsed = false;
 
                 data.DownloadProgress = new DownloadProgress(){
-                    IsDownloading = true,
+                    State = DownloadState.Processing,
                     Percent = 100,
                     Time = 0,
                     DownloadSpeedBytes = 0,
                     Doing = "Muxing"
                 };
 
-                QueueManager.Instance.Queue.Refresh();
+                QueueManager.Instance.RefreshQueue();
 
                 if (options.MuxFonts){
                     await FontsManager.Instance.GetFontsAsync();
@@ -459,14 +550,14 @@ public class CrunchyrollManager{
 
                         if (options.IsEncodeEnabled){
                             data.DownloadProgress = new DownloadProgress(){
-                                IsDownloading = true,
+                                State = DownloadState.Processing,
                                 Percent = 100,
                                 Time = 0,
                                 DownloadSpeedBytes = 0,
                                 Doing = "Encoding"
                             };
 
-                            QueueManager.Instance.Queue.Refresh();
+                            QueueManager.Instance.RefreshQueue();
 
                             var preset = FfmpegEncoding.GetPreset(options.EncodingPresetName ?? string.Empty);
 
@@ -508,6 +599,52 @@ public class CrunchyrollManager{
                         },
                         fileNameAndPath, data);
 
+                    if (result.syncError && options.SyncTimingFullQualityFallback && result.failedSyncLocales.Count > 0){
+                        var fallbackResult = await TrySyncTimingFallbackAsync(res, data, options, result.failedSyncLocales);
+                        if (fallbackResult.FallbackReady){
+                            fallbackUsed = true;
+
+                            if (result.isMuxed && result.merger != null){
+                                Helpers.DeleteFile(result.merger.Options.Output);
+                            }
+
+                            result = await MuxStreams(res.Data,
+                                new CrunchyMuxOptions{
+                                    DubLangList = options.DubLang,
+                                    SubLangList = options.DlSubs,
+                                    FfmpegOptions = options.FfmpegOptions,
+                                    SkipSubMux = options.SkipSubsMux,
+                                    Output = fileNameAndPath,
+                                    Mp4 = options.Mp4,
+                                    Mp3 = options.AudioOnlyToMp3,
+                                    MuxFonts = options.MuxFonts,
+                                    MuxCover = options.MuxCover,
+                                    VideoTitle = res.VideoTitle,
+                                    Novids = options.Novids,
+                                    NoCleanup = options.Nocleanup,
+                                    DefaultAudio = options.DefaultAudio != "none" ? Languages.FindLang(options.DefaultAudio) : null,
+                                    DefaultSub = options.DefaultSub != "none" ? Languages.FindLang(options.DefaultSub) : null,
+                                    MkvmergeOptions = options.MkvmergeOptions,
+                                    ForceMuxer = options.Force,
+                                    SyncTiming = false,
+                                    CcTag = options.CcTag,
+                                    KeepAllVideos = true,
+                                    MuxDescription = options.IncludeVideoDescription,
+                                    DlVideoOnce = false,
+                                    DefaultSubSigns = options.DefaultSubSigns,
+                                    DefaultSubForcedDisplay = options.DefaultSubForcedDisplay,
+                                    CcSubsMuxingFlag = options.CcSubsMuxingFlag,
+                                    SignsSubsAsForced = options.SignsSubsAsForced,
+                                },
+                                fileNameAndPath, data);
+
+                            syncError = false;
+                            notSyncedDubs = "";
+                        } else{
+                            result.notSyncedDubs = string.Join(", ", fallbackResult.FailedLocales);
+                        }
+                    }
+
                     syncError = result.syncError;
                     notSyncedDubs = result.notSyncedDubs;
                     muxError = !result.isMuxed && !data.OnlySubs;
@@ -516,16 +653,18 @@ public class CrunchyrollManager{
                         result.merger.CleanUp();
                     }
 
+                    DeleteSyncVideoFiles(res.Data);
+
                     if (options.IsEncodeEnabled && !muxError){
                         data.DownloadProgress = new DownloadProgress(){
-                            IsDownloading = true,
+                            State = DownloadState.Processing,
                             Percent = 100,
                             Time = 0,
                             DownloadSpeedBytes = 0,
                             Doing = "Encoding"
                         };
 
-                        QueueManager.Instance.Queue.Refresh();
+                        QueueManager.Instance.RefreshQueue();
 
                         var preset = FfmpegEncoding.GetPreset(options.EncodingPresetName ?? string.Empty);
                         if (preset != null && result.merger != null) await Helpers.RunFFmpegWithPresetAsync(result.merger.Options.Output, preset, data);
@@ -543,22 +682,22 @@ public class CrunchyrollManager{
                                     Language = d.Language,
                                     ClosedCaption = d.Cc ?? false,
                                     Signs = d.Signs ?? false,
+                                    Delay = d.Delay,
                                     RelatedVideoDownloadMedia = d.RelatedVideoDownloadMedia
                                 })
                                 .ToList();
 
-                        await MoveFromTempFolder(result.merger, data, options, tempFolder, subtitles);
+                        await MoveFromTempFolder(result.merger, data, options, tempFolder, subtitles, fallbackUsed);
                     }
                 }
 
 
                 data.DownloadProgress = new DownloadProgress(){
-                    IsDownloading = true,
+                    State = DownloadState.Done,
-                    Done = true,
                     Percent = 100,
                     Time = 0,
                     DownloadSpeedBytes = 0,
-                    Doing = (muxError ? "Muxing Failed" : "Done") + (syncError ? $" - Couldn't sync dubs ({notSyncedDubs})" : "")
+                    Doing = (muxError ? "Muxing Failed" : "Done") + (syncError ? $" - Couldn't sync dubs ({notSyncedDubs})" : "") + (fallbackUsed ? " - Used full-quality fallback" : "")
                 };
 
                 QueueManager.Instance.MarkDownloadFinished(data, CrunOptions.RemoveFinishedDownload && !syncError);
@@ -577,8 +716,7 @@ public class CrunchyrollManager{
                 }
 
                 data.DownloadProgress = new DownloadProgress(){
-                    IsDownloading = true,
+                    State = DownloadState.Done,
-                    Done = true,
                     Percent = 100,
                     Time = 0,
                     DownloadSpeedBytes = 0,
@@ -598,7 +736,7 @@ public class CrunchyrollManager{
         }
 
 
-        QueueManager.Instance.Queue.Refresh();
+        QueueManager.Instance.RefreshQueue();
 
         if (options.History && data.Data is{ Count: > 0 } && (options.HistoryIncludeCrArtists && data.Music || !data.Music)){
             var ids = data.Data.First().GetOriginalIds();
@@ -609,31 +747,14 @@ public class CrunchyrollManager{
             _ = CrEpisode.MarkAsWatched(data.Data.First().MediaId);
         }
 
-        if (!QueueManager.Instance.Queue.Any(e => e.DownloadProgress is{ Done: false, Error: false })){
+        await NotificationPublisher.Instance.PublishDownloadFinishedAsync(CrunOptions.NotificationSettings, data);
-            if (CrunOptions.DownloadFinishedPlaySound){
-                try{
-                    var audioPath = CrunOptions.DownloadFinishedSoundPath;
-                    if (!string.IsNullOrEmpty(audioPath)){
-                        var player = new AudioPlayer();
-                        player.Play(audioPath);
-                    }
-                } catch (Exception exception){
-                    Console.Error.WriteLine("Failed to play sound: " + exception);
-                }
-            }
 
-            if (CrunOptions.DownloadFinishedExecute){
+        if (!QueueManager.Instance.Queue.Any(e => !e.DownloadProgress.IsFinished)){
-                try{
+            await NotificationPublisher.Instance.PublishQueueFinishedAsync(CrunOptions.NotificationSettings, data);
-                    var filePath = CrunOptions.DownloadFinishedExecutePath;
-                    if (!string.IsNullOrEmpty(filePath)){
-                        Helpers.ExecuteFile(filePath);
-                    }
-                } catch (Exception exception){
-                    Console.Error.WriteLine("Failed to execute file: " + exception);
-                }
-            }
 
             if (CrunOptions.ShutdownWhenQueueEmpty){
+                CrunOptions.ShutdownWhenQueueEmpty = false;
+                CfgManager.WriteCrSettings();
                 Helpers.ShutdownComputer();
             }
         }
@@ -644,18 +765,18 @@ public class CrunchyrollManager{
 
     #region Temp Files Move
 
-    private async Task MoveFromTempFolder(Merger? merger, CrunchyEpMeta data, CrDownloadOptions options, string tempFolderPath, List<SubtitleInput> subtitles){
+    private async Task MoveFromTempFolder(Merger? merger, CrunchyEpMeta data, CrDownloadOptions options, string tempFolderPath, List<SubtitleInput> subtitles, bool replaceExisting = false){
         if (!options.DownloadToTempFolder) return;
 
         data.DownloadProgress = new DownloadProgress{
-            IsDownloading = true,
+            State = DownloadState.Processing,
             Percent = 100,
             Time = 0,
             DownloadSpeedBytes = 0,
             Doing = "Moving Files"
         };
 
-        QueueManager.Instance.Queue.Refresh();
+        QueueManager.Instance.RefreshQueue();
 
         if (string.IsNullOrEmpty(tempFolderPath) || !Directory.Exists(tempFolderPath)){
             Console.WriteLine("Invalid or non-existent temp folder path.");
@@ -663,15 +784,15 @@ public class CrunchyrollManager{
         }
 
         // Move the main output file
-        await MoveFile(merger?.Options.Output ?? string.Empty, tempFolderPath, data.DownloadPath ?? CfgManager.PathVIDEOS_DIR, options);
+        await MoveFile(merger?.Options.Output ?? string.Empty, tempFolderPath, data.DownloadPath ?? CfgManager.PathVIDEOS_DIR, options, replaceExisting);
 
         // Move the subtitle files
         foreach (var downloadedMedia in subtitles){
-            await MoveFile(downloadedMedia.File ?? string.Empty, tempFolderPath, data.DownloadPath ?? CfgManager.PathVIDEOS_DIR, options);
+            await MoveFile(downloadedMedia.File ?? string.Empty, tempFolderPath, data.DownloadPath ?? CfgManager.PathVIDEOS_DIR, options, replaceExisting);
         }
     }
 
-    private async Task MoveFile(string sourcePath, string tempFolderPath, string downloadPath, CrDownloadOptions options){
+    private async Task MoveFile(string sourcePath, string tempFolderPath, string downloadPath, CrDownloadOptions options, bool replaceExisting = false){
         if (string.IsNullOrEmpty(sourcePath) || !File.Exists(sourcePath)){
             // Console.Error.WriteLine("Source file does not exist or path is invalid.");
             return;
@@ -691,6 +812,7 @@ public class CrunchyrollManager{
                     : CfgManager.PathVIDEOS_DIR;
 
             var destinationPath = Path.Combine(destinationFolder ?? string.Empty, fileName);
+            destinationPath = replaceExisting ? destinationPath : Helpers.GetAvailableDestinationPath(destinationPath);
 
             string? destinationDirectory = Path.GetDirectoryName(destinationPath);
             if (string.IsNullOrEmpty(destinationDirectory)){
@@ -704,7 +826,7 @@ public class CrunchyrollManager{
                 }
             });
 
-            await Task.Run(() => File.Move(sourcePath, destinationPath));
+            await Task.Run(() => File.Move(sourcePath, destinationPath, replaceExisting));
             Console.WriteLine($"File moved to {destinationPath}");
         } catch (IOException ex){
             Console.Error.WriteLine($"An error occurred while moving the file: {ex.Message}");
@@ -717,7 +839,8 @@ public class CrunchyrollManager{
 
     #endregion
 
-    private async Task<(Merger? merger, bool isMuxed, bool syncError, string notSyncedDubs)> MuxStreams(List<DownloadedMedia> data, CrunchyMuxOptions options, string filename, CrunchyEpMeta crunchyEpMeta){
+    private async Task<(Merger? merger, bool isMuxed, bool syncError, string notSyncedDubs, List<string> failedSyncLocales)> MuxStreams(List<DownloadedMedia> data, CrunchyMuxOptions options, string filename,
+        CrunchyEpMeta crunchyEpMeta){
         var muxToMp3 = false;
 
         if (options.Novids == true || data.FindAll(a => a.Type == DownloadMediaType.Video).Count == 0){
@@ -728,7 +851,7 @@ public class CrunchyrollManager{
                 }
             } else{
                 Console.WriteLine("Skip muxing since no videos are downloaded");
-                return (null, false, false, "");
+                return (null, false, false, "", []);
             }
         }
 
@@ -771,10 +894,10 @@ public class CrunchyrollManager{
             OnlyVid = data.Where(a => a.Type == DownloadMediaType.Video).Select(a => new MergerInput{ Language = a.Lang, Path = a.Path ?? string.Empty, Bitrate = a.bitrate }).ToList(),
             SkipSubMux = options.SkipSubMux,
             OnlyAudio = data.Where(a => a.Type is DownloadMediaType.Audio or DownloadMediaType.AudioRoleDescription).Select(a => new MergerInput
-                { Language = a.Lang, Path = a.Path ?? string.Empty, Bitrate = a.bitrate, IsAudioRoleDescription = (a.Type is DownloadMediaType.AudioRoleDescription) }).ToList(),
+                { Language = a.Lang, Path = a.Path ?? string.Empty, Bitrate = a.bitrate, Delay = a.Delay, IsAudioRoleDescription = (a.Type is DownloadMediaType.AudioRoleDescription) }).ToList(),
             Output = $"{filename}.{(muxToMp3 ? "mp3" : options.Mp4 ? "mp4" : "mkv")}",
             Subtitles = data.Where(a => a.Type == DownloadMediaType.Subtitle).Select(a => new SubtitleInput
-                { File = a.Path ?? string.Empty, Language = a.Language, ClosedCaption = a.Cc ?? false, Signs = a.Signs ?? false, RelatedVideoDownloadMedia = a.RelatedVideoDownloadMedia }).ToList(),
+                { File = a.Path ?? string.Empty, Language = a.Language, ClosedCaption = a.Cc ?? false, Signs = a.Signs ?? false, Delay = a.Delay, RelatedVideoDownloadMedia = a.RelatedVideoDownloadMedia }).ToList(),
             KeepAllVideos = options.KeepAllVideos,
             Fonts = options.MuxFonts ? FontsManager.Instance.MakeFontsList(CfgManager.PathFONTS_DIR, subsList) : [],
             Chapters = data.Where(a => a.Type == DownloadMediaType.Chapters).Select(a => new MergerInput{ Language = a.Lang, Path = a.Path ?? string.Empty }).ToList(),
@@ -797,11 +920,14 @@ public class CrunchyrollManager{
             Cover = options.MuxCover ? data.Where(a => a.Type == DownloadMediaType.Cover).Select(a => new MergerInput{ Path = a.Path ?? string.Empty }).ToList() : [],
         });
 
-        if (!File.Exists(CfgManager.PathFFMPEG)){
+        bool ffmpegAvailable = Helpers.IsInstalled(CfgManager.PathFFMPEG, "-version");
+        bool mkvmergeAvailable = Helpers.IsInstalled(CfgManager.PathMKVMERGE, "--version");
+
+        if (!ffmpegAvailable){
             Console.Error.WriteLine("FFmpeg not found");
         }
 
-        if (!File.Exists(CfgManager.PathMKVMERGE)){
+        if (!mkvmergeAvailable){
             Console.Error.WriteLine("MKVmerge not found");
         }
 
@@ -811,14 +937,14 @@ public class CrunchyrollManager{
 
         if (options is{ SyncTiming: true, DlVideoOnce: true } && merger.Options.OnlyVid.Count > 0 && merger.Options.OnlyAudio.Count > 0){
             crunchyEpMeta.DownloadProgress = new DownloadProgress(){
-                IsDownloading = true,
+                State = DownloadState.Processing,
                 Percent = 100,
                 Time = 0,
                 DownloadSpeedBytes = 0,
                 Doing = "Muxing – Syncing Dub Timings"
             };
 
-            QueueManager.Instance.Queue.Refresh();
+            QueueManager.Instance.RefreshQueue();
 
             var basePath = merger.Options.OnlyVid.First().Path;
             var syncVideosList = data.Where(a => a.Type == DownloadMediaType.SyncVideo).ToList();
@@ -845,42 +971,162 @@ public class CrunchyrollManager{
 
 
                         var audio = merger.Options.OnlyAudio.FirstOrDefault(audio => audio.Language.CrLocale == syncVideo.Lang.CrLocale);
-                        audio?.Delay = (int)(delay.offSet * 1000);
+                        var delayMs = (int)(delay.offSet * 1000);
+                        if (audio != null){
+                            audio.Delay = delayMs;
+                        }
+
+                        var sourceAudio = data.FirstOrDefault(downloadedMedia =>
+                            downloadedMedia.Type is DownloadMediaType.Audio or DownloadMediaType.AudioRoleDescription &&
+                            downloadedMedia.Lang.CrLocale == syncVideo.Lang.CrLocale);
+                        if (sourceAudio != null){
+                            sourceAudio.Delay = delayMs;
+                        }
 
 
                         var subtitles = merger.Options.Subtitles.Where(a => a.RelatedVideoDownloadMedia == syncVideo).ToList();
+                        var sourceSubtitles = data.Where(a => a.Type == DownloadMediaType.Subtitle && a.RelatedVideoDownloadMedia == syncVideo).ToList();
 
                         if (subtitles.Count <= 0) continue;
 
                         foreach (var subMergerInput in subtitles){
-                            subMergerInput.Delay = (int)(delay.offSet * 1000);
+                            subMergerInput.Delay = delayMs;
-                        }
-                    }
-                }
                         }
 
-            syncVideosList.ForEach(syncVideo => {
+                        foreach (var sourceSubtitle in sourceSubtitles){
-                if (syncVideo.Path != null) Helpers.DeleteFile(syncVideo.Path);
+                            sourceSubtitle.Delay = delayMs;
-            });
+                        }
+                    }
+                }
+            }
 
             crunchyEpMeta.DownloadProgress = new DownloadProgress(){
-                IsDownloading = true,
+                State = DownloadState.Processing,
                 Percent = 100,
                 Time = 0,
                 DownloadSpeedBytes = 0,
                 Doing = "Muxing"
             };
 
-            QueueManager.Instance.Queue.Refresh();
+            QueueManager.Instance.RefreshQueue();
         }
 
         if (!options.Mp4 && !muxToMp3){
-            isMuxed = await merger.Merge("mkvmerge", CfgManager.PathMKVMERGE);
+            isMuxed = await merger.Merge("mkvmerge", CfgManager.PathMKVMERGE, crunchyEpMeta.Cts.Token);
         } else{
-            isMuxed = await merger.Merge("ffmpeg", CfgManager.PathFFMPEG);
+            isMuxed = await merger.Merge("ffmpeg", CfgManager.PathFFMPEG, crunchyEpMeta.Cts.Token);
         }
 
-        return (merger, isMuxed, syncError, string.Join(", ", notSyncedDubs));
+        return (merger, isMuxed, syncError, string.Join(", ", notSyncedDubs), notSyncedDubs);
+    }
+
+    private async Task<(bool FallbackReady, List<string> FailedLocales)> TrySyncTimingFallbackAsync(DownloadResponse res, CrunchyEpMeta data, CrDownloadOptions options, List<string> failedSyncLocales){
+        var uniqueFailedLocales = failedSyncLocales
+            .Where(locale => !string.IsNullOrWhiteSpace(locale))
+            .Distinct(StringComparer.OrdinalIgnoreCase)
+            .ToList();
+
+        if (uniqueFailedLocales.Count == 0){
+            return (false, []);
+        }
+
+        data.DownloadProgress = new DownloadProgress{
+            State = DownloadState.Downloading,
+            Percent = 0,
+            Time = 0,
+            DownloadSpeedBytes = 0,
+            Doing = $"Downloading full-quality fallback video ({string.Join(", ", uniqueFailedLocales)})"
+        };
+        QueueManager.Instance.RefreshQueue();
+
+        foreach (var syncVideo in res.Data.Where(media => media.Type == DownloadMediaType.SyncVideo && uniqueFailedLocales.Contains(media.Lang.CrLocale, StringComparer.OrdinalIgnoreCase)).ToList()){
+            if (!string.IsNullOrEmpty(syncVideo.Path)){
+                Helpers.DeleteFile(syncVideo.Path);
+                Helpers.DeleteFile(syncVideo.Path + ".resume");
+                Helpers.DeleteFile(syncVideo.Path + ".new.resume");
+            }
+        }
+
+        res.Data.RemoveAll(media => media.Type == DownloadMediaType.SyncVideo && uniqueFailedLocales.Contains(media.Lang.CrLocale, StringComparer.OrdinalIgnoreCase));
+
+        var fallbackOptions = Helpers.DeepCopy(options) ?? new CrDownloadOptions();
+
+        fallbackOptions.DubLang = uniqueFailedLocales;
+        fallbackOptions.Noaudio = true;
+        fallbackOptions.Novids = false;
+        fallbackOptions.DlSubs = [];
+        fallbackOptions.SkipSubs = true;
+        fallbackOptions.SkipSubsMux = true;
+        fallbackOptions.Chapters = false;
+        fallbackOptions.IncludeVideoDescription = false;
+        fallbackOptions.MuxCover = false;
+        fallbackOptions.DownloadDescriptionAudio = false;
+        fallbackOptions.DlVideoOnce = false;
+        fallbackOptions.SyncTiming = false;
+        fallbackOptions.DownloadFirstAvailableDub = false;
+        fallbackOptions.SkipMuxing = true;
+
+        var originalDataEntries = data.Data;
+        var originalSelectedDubs = data.SelectedDubs != null ? new List<string>(data.SelectedDubs) : null;
+        var originalDownloadSubs = new List<string>(data.DownloadSubs);
+        var originalTempFileSuffix = data.TempFileSuffix;
+
+        data.Data = data.Data
+            .Where(epMeta => epMeta.Lang != null && uniqueFailedLocales.Contains(epMeta.Lang.CrLocale, StringComparer.OrdinalIgnoreCase))
+            .ToList();
+        data.SelectedDubs = uniqueFailedLocales;
+        data.DownloadSubs = [];
+        data.TempFileSuffix = $"-fallback-{Guid.NewGuid():N}"[..19];
+
+        if (data.Data.Count == 0){
+            data.Data = originalDataEntries;
+            data.SelectedDubs = originalSelectedDubs;
+            data.DownloadSubs = originalDownloadSubs;
+            data.TempFileSuffix = originalTempFileSuffix;
+            return (false, uniqueFailedLocales);
+        }
+
+        DownloadResponse fallbackResponse;
+        try{
+            fallbackResponse = await DownloadMediaList(data, fallbackOptions);
+        } finally{
+            data.Data = originalDataEntries;
+            data.SelectedDubs = originalSelectedDubs;
+            data.DownloadSubs = originalDownloadSubs;
+            data.TempFileSuffix = originalTempFileSuffix;
+        }
+
+        if (fallbackResponse.Error){
+            return (false, uniqueFailedLocales);
+        }
+
+        var fallbackVideos = fallbackResponse.Data
+            .Where(media => media.Type == DownloadMediaType.Video && uniqueFailedLocales.Contains(media.Lang.CrLocale, StringComparer.OrdinalIgnoreCase))
+            .ToList();
+
+        var fallbackVideoLocales = fallbackVideos
+            .Select(media => media.Lang.CrLocale)
+            .Distinct(StringComparer.OrdinalIgnoreCase)
+            .ToList();
+
+        if (fallbackVideoLocales.Count != uniqueFailedLocales.Count){
+            return (false, uniqueFailedLocales);
+        }
+
+        res.Data.RemoveAll(media => media.Type == DownloadMediaType.Video && uniqueFailedLocales.Contains(media.Lang.CrLocale, StringComparer.OrdinalIgnoreCase));
+        res.Data.AddRange(fallbackVideos);
+
+        return (true, uniqueFailedLocales);
+    }
+
+    private static void DeleteSyncVideoFiles(List<DownloadedMedia> data){
+        foreach (var syncVideo in data.Where(media => media.Type == DownloadMediaType.SyncVideo).ToList()){
+            if (!string.IsNullOrEmpty(syncVideo.Path)){
+                Helpers.DeleteFile(syncVideo.Path);
+                Helpers.DeleteFile(syncVideo.Path + ".resume");
+                Helpers.DeleteFile(syncVideo.Path + ".new.resume");
+            }
+        }
     }
 
     private async Task<DownloadResponse> DownloadMediaList(CrunchyEpMeta data, CrDownloadOptions options){
@@ -894,8 +1140,11 @@ public class CrunchyrollManager{
             };
         }
 
+        bool ffmpegAvailable = Helpers.IsInstalled(CfgManager.PathFFMPEG, "-version");
+        bool mkvmergeAvailable = Helpers.IsInstalled(CfgManager.PathMKVMERGE, "--version");
+
         if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)){
-            if (!File.Exists(CfgManager.PathFFMPEG)){
+            if (!ffmpegAvailable){
                 Console.Error.WriteLine("Missing ffmpeg");
                 MainWindow.Instance.ShowError($"FFmpeg not found at: {CfgManager.PathFFMPEG}", "FFmpeg",
                     "https://github.com/GyanD/codexffmpeg/releases/latest");
@@ -907,7 +1156,7 @@ public class CrunchyrollManager{
                 };
             }
 
-            if (!File.Exists(CfgManager.PathMKVMERGE)){
+            if (!mkvmergeAvailable){
                 Console.Error.WriteLine("Missing Mkvmerge");
                 MainWindow.Instance.ShowError($"Mkvmerge not found at: {CfgManager.PathMKVMERGE}", "Mkvmerge",
                     "https://mkvtoolnix.download/downloads.html#windows");
@@ -919,7 +1168,7 @@ public class CrunchyrollManager{
                 };
             }
         } else{
-            if (!Helpers.IsInstalled("ffmpeg", "-version") && !File.Exists(Path.Combine(AppContext.BaseDirectory, "lib", "ffmpeg"))){
+            if (!ffmpegAvailable){
                 Console.Error.WriteLine("Ffmpeg is not installed or not in the system PATH.");
                 MainWindow.Instance.ShowError("Ffmpeg is not installed on the system or not found in the PATH.");
                 return new DownloadResponse{
@@ -930,7 +1179,7 @@ public class CrunchyrollManager{
                 };
             }
 
-            if (!Helpers.IsInstalled("mkvmerge", "--version") && !File.Exists(Path.Combine(AppContext.BaseDirectory, "lib", "mkvmerge"))){
+            if (!mkvmergeAvailable){
                 Console.Error.WriteLine("Mkvmerge is not installed or not in the system PATH.");
                 MainWindow.Instance.ShowError("Mkvmerge is not installed on the system or not found in the PATH.");
                 return new DownloadResponse{
@@ -991,11 +1240,11 @@ public class CrunchyrollManager{
         if (data.Data is{ Count: > 0 }){
             options.Partsize = options.Partsize > 0 ? options.Partsize : 1;
 
-            var historyEpisode = History.GetHistoryEpisode(data.SeriesId ?? string.Empty ,data.SeasonId ?? string.Empty, data.EpisodeId ?? string.Empty);
+            var historyEpisode = History.GetHistoryEpisode(data.SeriesId ?? string.Empty, data.SeasonId ?? string.Empty, data.EpisodeId ?? string.Empty);
             SonarrEpisode? sonarrEpisode;
             if (historyEpisode != null && CrunOptions.SonarrProperties?.SonarrEnabled == true){
                 sonarrEpisode = await SonarrClient.Instance.GetEpisode(Convert.ToInt32(historyEpisode.SonarrEpisodeId));
-                if(sonarrEpisode is{ Series: null }) sonarrEpisode.Series = await SonarrClient.Instance.GetSeries(sonarrEpisode.SeriesId);
+                if (sonarrEpisode is{ Series: null }) sonarrEpisode.Series = await SonarrClient.Instance.GetSeries(sonarrEpisode.SeriesId);
                 variables.Add(new Variable("sonarrSeriesTitle", sonarrEpisode?.Series?.Title ?? string.Empty, true));
                 variables.Add(new Variable("sonarrSeriesReleaseYear", sonarrEpisode?.Series?.Year ?? 0, true));
                 variables.Add(new Variable("sonarrEpisodeTitle", sonarrEpisode?.Title ?? string.Empty, true));
@@ -1044,7 +1293,16 @@ public class CrunchyrollManager{
 
             data.Data = sortedMetaData;
 
+            var epMetaIndex = 0;
             foreach (CrunchyEpMetaData epMeta in data.Data){
+                if (epMetaIndex > 0 && options.DubDownloadDelaySeconds > 0){
+                    var delay = TimeSpan.FromSeconds(options.DubDownloadDelaySeconds);
+                    data.DownloadProgress.Doing = $"Waiting {options.DubDownloadDelaySeconds}s before next dub";
+                    QueueManager.Instance.RefreshQueue();
+                    await Task.Delay(delay, data.Cts.Token);
+                }
+
+                epMetaIndex++;
                 Console.WriteLine($"Requesting: [{epMeta.MediaId}] {mediaName}");
 
                 string currentMediaId = (epMeta.MediaId.Contains(':') ? epMeta.MediaId.Split(':')[1] : epMeta.MediaId);
@@ -1121,8 +1379,8 @@ public class CrunchyrollManager{
 
                 #endregion
 
-                (bool IsOk, PlaybackData pbData, string error) fetchPlaybackData = default;
+                (bool IsOk, PlaybackData pbData, string error, Dictionary<string, string> Headers) fetchPlaybackData = default;
-                (bool IsOk, PlaybackData pbData, string error) fetchPlaybackData2 = default;
+                (bool IsOk, PlaybackData pbData, string error, Dictionary<string, string> Headers) fetchPlaybackData2 = default;
 
                 if (CrAuthEndpoint1.Profile.Username != "???" && options.StreamEndpoint != null && (options.StreamEndpoint.Video || options.StreamEndpoint.Audio)){
                     fetchPlaybackData = await FetchPlaybackData(CrAuthEndpoint1, mediaId, mediaGuid, data.Music, epMeta.IsAudioRoleDescription, options.StreamEndpoint);
@@ -1133,7 +1391,9 @@ public class CrunchyrollManager{
                 }
 
                 if (!fetchPlaybackData.IsOk && !fetchPlaybackData2.IsOk){
-                    var errorJson = fetchPlaybackData.error;
+                    var errorJson = !string.IsNullOrEmpty(fetchPlaybackData.error)
+                        ? fetchPlaybackData.error
+                        : fetchPlaybackData2.error;
                     if (!string.IsNullOrEmpty(errorJson)){
                         var error = StreamError.FromJson(errorJson);
 
@@ -1147,7 +1407,7 @@ public class CrunchyrollManager{
                             };
                         }
 
-                        if (error?.Error.Contains("Account maturity rating is lower than video rating") == true ||
+                        if (error?.Error?.Contains("Account maturity rating is lower than video rating") == true ||
                             errorJson.Contains("Account maturity rating is lower than video rating")){
                             MainWindow.Instance.ShowError("Account maturity rating is lower than video rating\nChange it in the Crunchyroll account settings");
                             return new DownloadResponse{
@@ -1158,6 +1418,26 @@ public class CrunchyrollManager{
                             };
                         }
 
+                        if (error?.IsPlaybackRateLimitError() == true){
+                            int retryDelaySeconds = Helpers.GetRetryDelaySeconds(options, data.DownloadProgress.RetryAttemptCount);
+
+                            if (fetchPlaybackData.Headers != null &&
+                                fetchPlaybackData.Headers.TryGetValue("retry-after", out var retryAfter) &&
+                                int.TryParse(retryAfter, out var parsedRetryAfter)){
+                                Console.WriteLine($"Retry after: {parsedRetryAfter} seconds");
+                                retryDelaySeconds = parsedRetryAfter;
+                            }
+
+                            Console.Error.WriteLine($"Playback API rate limited with 4294. Requeueing download in {retryDelaySeconds}s.");
+                            return new DownloadResponse{
+                                Data = new List<DownloadedMedia>(),
+                                RetrySuggested = true,
+                                RetryDelaySeconds = retryDelaySeconds,
+                                FileName = "./unknown",
+                                ErrorText = "Rate limit error"
+                            };
+                        }
+
                         if (!string.IsNullOrEmpty(error?.Error)){
                             MainWindow.Instance.ShowError($"Couldn't get Playback Data\n{error.Error}");
                             return new DownloadResponse{
@@ -1652,7 +1932,8 @@ public class CrunchyrollManager{
                                 string outFile = fileName + "." + (epMeta.Lang?.CrLocale ?? lang.CrLocale) + (epMeta.IsAudioRoleDescription ? ".AD" : "");
 
                                 string tempFile = Path.Combine(FileNameManager
-                                    .ParseFileName($"temp-{(!string.IsNullOrEmpty(currentVersion.Guid) ? currentVersion.Guid : currentMediaId)}", variables, options.Numbers, options.FileNameWhitespaceSubstitute,
+                                    .ParseFileName($"temp-{(!string.IsNullOrEmpty(currentVersion.Guid) ? currentVersion.Guid : currentMediaId)}{data.TempFileSuffix ?? string.Empty}", variables, options.Numbers,
+                                        options.FileNameWhitespaceSubstitute,
                                         options.Override)
                                     .ToArray());
                                 string tempTsFile = Path.IsPathRooted(tempFile) ? tempFile : Path.Combine(fileDir, tempFile);
@@ -1743,13 +2024,13 @@ public class CrunchyrollManager{
 
                                 if ((chosenVideoSegments.pssh != null || chosenAudioSegments.pssh != null) && (videoDownloaded || audioDownloaded)){
                                     data.DownloadProgress = new DownloadProgress(){
-                                        IsDownloading = true,
+                                        State = DownloadState.Downloading,
                                         Percent = 100,
                                         Time = 0,
                                         DownloadSpeedBytes = 0,
                                         Doing = "Decrypting"
                                     };
-                                    QueueManager.Instance.Queue.Refresh();
+                                    QueueManager.Instance.RefreshQueue();
 
                                     Console.WriteLine("Decryption Needed, attempting to decrypt");
 
@@ -1834,13 +2115,13 @@ public class CrunchyrollManager{
                                         if (videoDownloaded){
                                             Console.WriteLine("Started decrypting video");
                                             data.DownloadProgress = new DownloadProgress(){
-                                                IsDownloading = true,
+                                                State = DownloadState.Downloading,
                                                 Percent = 100,
                                                 Time = 0,
                                                 DownloadSpeedBytes = 0,
                                                 Doing = "Decrypting video"
                                             };
-                                            QueueManager.Instance.Queue.Refresh();
+                                            QueueManager.Instance.RefreshQueue();
                                             var decryptVideo = await Helpers.ExecuteCommandAsyncWorkDir(shaka ? "shaka-packager" : "mp4decrypt", shaka ? CfgManager.PathShakaPackager : CfgManager.PathMP4Decrypt,
                                                 commandVideo, tempTsFileWorkDir);
 
@@ -1864,18 +2145,8 @@ public class CrunchyrollManager{
 
                                             Console.WriteLine("Decryption done for video");
                                             if (!options.Nocleanup){
-                                                try{
+                                                Helpers.DeleteFile($"{tempTsFile}.video.enc.m4s");
-                                                    if (File.Exists($"{tempTsFile}.video.enc.m4s")){
+                                                Helpers.DeleteFile($"{tempTsFile}.video.enc.m4s.resume");
-                                                        File.Delete($"{tempTsFile}.video.enc.m4s");
-                                                    }
-
-                                                    if (File.Exists($"{tempTsFile}.video.enc.m4s.resume")){
-                                                        File.Delete($"{tempTsFile}.video.enc.m4s.resume");
-                                                    }
-                                                } catch (Exception ex){
-                                                    Console.WriteLine($"Failed to delete file {tempTsFile}.video.enc.m4s. Error: {ex.Message}");
-                                                    // Handle exceptions if you need to log them or throw
-                                                }
                                             }
 
                                             try{
@@ -1905,13 +2176,13 @@ public class CrunchyrollManager{
                                         if (audioDownloaded){
                                             Console.WriteLine("Started decrypting audio");
                                             data.DownloadProgress = new DownloadProgress(){
-                                                IsDownloading = true,
+                                                State = DownloadState.Downloading,
                                                 Percent = 100,
                                                 Time = 0,
                                                 DownloadSpeedBytes = 0,
                                                 Doing = "Decrypting audio"
                                             };
-                                            QueueManager.Instance.Queue.Refresh();
+                                            QueueManager.Instance.RefreshQueue();
                                             var decryptAudio = await Helpers.ExecuteCommandAsyncWorkDir(shaka ? "shaka-packager" : "mp4decrypt", shaka ? CfgManager.PathShakaPackager : CfgManager.PathMP4Decrypt,
                                                 commandAudio, tempTsFileWorkDir);
 
@@ -1935,18 +2206,8 @@ public class CrunchyrollManager{
 
                                             Console.WriteLine("Decryption done for audio");
                                             if (!options.Nocleanup){
-                                                try{
+                                                Helpers.DeleteFile($"{tempTsFile}.audio.enc.m4s");
-                                                    if (File.Exists($"{tempTsFile}.audio.enc.m4s")){
+                                                Helpers.DeleteFile($"{tempTsFile}.audio.enc.m4s.resume");
-                                                        File.Delete($"{tempTsFile}.audio.enc.m4s");
-                                                    }
-
-                                                    if (File.Exists($"{tempTsFile}.audio.enc.m4s.resume")){
-                                                        File.Delete($"{tempTsFile}.audio.enc.m4s.resume");
-                                                    }
-                                                } catch (Exception ex){
-                                                    Console.WriteLine($"Failed to delete file {tempTsFile}.audio.enc.m4s. Error: {ex.Message}");
-                                                    // Handle exceptions if you need to log them or throw
-                                                }
                                             }
 
                                             try{
@@ -2480,7 +2741,7 @@ public class CrunchyrollManager{
 
     #region Fetch Playback Data
 
-    private async Task<(bool IsOk, PlaybackData pbData, string error)> FetchPlaybackData(CrAuth authEndpoint, string mediaId, string mediaGuidId, bool music, bool auioRoleDesc,
+    private async Task<(bool IsOk, PlaybackData pbData, string error, Dictionary<string, string> Headers)> FetchPlaybackData(CrAuth authEndpoint, string mediaId, string mediaGuidId, bool music, bool auioRoleDesc,
         CrAuthSettings optionsStreamEndpointSettings){
         var temppbData = new PlaybackData{
             Total = 0,
@@ -2514,16 +2775,17 @@ public class CrunchyrollManager{
             }
         }
 
-        return (playbackRequestResponse.IsOk, pbData: temppbData, error: playbackRequestResponse.IsOk ? "" : playbackRequestResponse.ResponseContent);
+        return (playbackRequestResponse.IsOk, pbData: temppbData, error: playbackRequestResponse.IsOk ? "" : playbackRequestResponse.ResponseContent, playbackRequestResponse.Headers);
     }
 
-    private async Task<(bool IsOk, string ResponseContent, string error)> SendPlaybackRequestAsync(string endpoint, CrAuth authEndpoint){
+    private async Task<(bool IsOk, string ResponseContent, string error, Dictionary<string, string> Headers)> SendPlaybackRequestAsync(string endpoint, CrAuth authEndpoint){
         var request = HttpClientReq.CreateRequestMessage(endpoint, HttpMethod.Get, true, authEndpoint.Token?.access_token, null);
         request.Headers.UserAgent.ParseAdd(authEndpoint.AuthSettings.UserAgent);
         return await HttpClientReq.Instance.SendHttpRequest(request, false, authEndpoint.cookieStore);
     }
 
-    private async Task<(bool IsOk, string ResponseContent, string error)> HandleStreamErrorsAsync((bool IsOk, string ResponseContent, string error) response, string endpoint, CrAuth authEndpoint){
+    private async Task<(bool IsOk, string ResponseContent, string error, Dictionary<string, string> Headers)> HandleStreamErrorsAsync(
+        (bool IsOk, string ResponseContent, string error, Dictionary<string, string> Headers) response, string endpoint, CrAuth authEndpoint){
         if (response.IsOk || string.IsNullOrEmpty(response.ResponseContent)) return response;
 
         var error = StreamError.FromJson(response.ResponseContent);

CRD/Downloader/Crunchyroll/ViewModels/CrunchyrollSettingsViewModel.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Collections.Specialized;
@@ -18,6 +18,7 @@ using CRD.Utils.Sonarr;
 using CRD.Utils.Structs;
 using CRD.Utils.Structs.Crunchyroll;
 using CRD.Utils.Structs.History;
+using CRD.Utils.Updater;
 using CRD.ViewModels;
 using CRD.ViewModels.Utils;
 using CRD.Views.Utils;
@@ -91,6 +92,9 @@ public partial class CrunchyrollSettingsViewModel : ViewModelBase{
     [ObservableProperty]
     private bool _syncTimings;
 
+    [ObservableProperty]
+    private bool _syncTimingsFullQualityFallback;
+
     [ObservableProperty]
     private bool _defaultSubSigns;
 
@@ -115,6 +119,9 @@ public partial class CrunchyrollSettingsViewModel : ViewModelBase{
     [ObservableProperty]
     private double? _partSize;
 
+    [ObservableProperty]
+    private double? _dubDownloadDelaySeconds;
+
     [ObservableProperty]
     private string _fileName = "";
 
@@ -352,6 +359,9 @@ public partial class CrunchyrollSettingsViewModel : ViewModelBase{
     [ObservableProperty]
     private bool _markAsWatched;
 
+    public string FontMuxDisclaimer =>
+        $"Crunchyroll no longer provides the old libass font files. Font muxing now uses installed system fonts and custom files from {CfgManager.PathFONTS_DIR}. If subtitles still report missing fonts, add those files there manually.";
+
     private bool settingsLoaded;
 
     public CrunchyrollSettingsViewModel(){
@@ -467,6 +477,7 @@ public partial class CrunchyrollSettingsViewModel : ViewModelBase{
         DefaultSubForcedDisplay = options.DefaultSubForcedDisplay;
         DefaultSubSigns = options.DefaultSubSigns;
         PartSize = options.Partsize;
+        DubDownloadDelaySeconds = options.DubDownloadDelaySeconds;
         IncludeEpisodeDescription = options.IncludeVideoDescription;
         FileTitle = options.VideoTitle ?? "";
         IncludeSignSubs = options.IncludeSignsSubs;
@@ -483,6 +494,7 @@ public partial class CrunchyrollSettingsViewModel : ViewModelBase{
         MuxTypesettingFonts = options.MuxTypesettingFonts;
         MuxCover = options.MuxCover;
         SyncTimings = options.SyncTiming;
+        SyncTimingsFullQualityFallback = options.SyncTimingFullQualityFallback;
         SkipSubMux = options.SkipSubsMux;
         LeadingNumbers = options.Numbers;
         FileName = options.FileName;
@@ -559,6 +571,7 @@ public partial class CrunchyrollSettingsViewModel : ViewModelBase{
         CrunchyrollManager.Instance.CrunOptions.MuxTypesettingFonts = MuxTypesettingFonts;
         CrunchyrollManager.Instance.CrunOptions.MuxCover = MuxCover;
         CrunchyrollManager.Instance.CrunOptions.SyncTiming = SyncTimings;
+        CrunchyrollManager.Instance.CrunOptions.SyncTimingFullQualityFallback = SyncTimingsFullQualityFallback;
         CrunchyrollManager.Instance.CrunOptions.SkipSubsMux = SkipSubMux;
         CrunchyrollManager.Instance.CrunOptions.Numbers = Math.Clamp((int)(LeadingNumbers ?? 0), 0, 10);
         CrunchyrollManager.Instance.CrunOptions.FileName = FileName;
@@ -566,6 +579,7 @@ public partial class CrunchyrollSettingsViewModel : ViewModelBase{
         CrunchyrollManager.Instance.CrunOptions.IncludeSignsSubs = IncludeSignSubs;
         CrunchyrollManager.Instance.CrunOptions.IncludeCcSubs = IncludeCcSubs;
         CrunchyrollManager.Instance.CrunOptions.Partsize = Math.Clamp((int)(PartSize ?? 1), 1, 10000);
+        CrunchyrollManager.Instance.CrunOptions.DubDownloadDelaySeconds = Math.Max((int)(DubDownloadDelaySeconds ?? 0), 0);
         CrunchyrollManager.Instance.CrunOptions.SearchFetchFeaturedMusic = SearchFetchFeaturedMusic;
 
         CrunchyrollManager.Instance.CrunOptions.SubsAddScaledBorder = GetScaledBorderAndShadowSelection();
@@ -776,6 +790,17 @@ public partial class CrunchyrollSettingsViewModel : ViewModelBase{
     [RelayCommand]
     public void ResetEndpointSettings(){
         var defaultSettings = CrunchyrollManager.Instance.DefaultAndroidAuthSettings;
+        var ghAuth = Updater.Instance.GhAuthJson;
+        
+        var ghAuthMobile = ghAuth.FirstOrDefault(e => e.Type.Equals("mobile"));
+        if (ghAuthMobile != null &&
+            !string.IsNullOrEmpty(ghAuthMobile.Authorization) &&
+            !string.IsNullOrEmpty(ghAuthMobile.VersionName) &&
+            Helpers.CompareClientVersions(ghAuthMobile.VersionName, Helpers.ExtractClientVersion(defaultSettings.UserAgent)) > 0){
+            defaultSettings.Authorization = ghAuthMobile.Authorization;
+            defaultSettings.UserAgent = $"Crunchyroll/{ghAuthMobile.VersionName} Android/16 okhttp/4.12.0";
+        }
+        
        
         ComboBoxItem? streamEndpointSecondar = StreamEndpointsSecondary.FirstOrDefault(a => a.Content != null && (string)a.Content == defaultSettings.Endpoint) ?? null;
         SelectedStreamEndpointSecondary = streamEndpointSecondar ?? StreamEndpointsSecondary[0];
@@ -792,6 +817,15 @@ public partial class CrunchyrollSettingsViewModel : ViewModelBase{
     public void ResetFirstEndpointSettings(){
 
         var defaultSettings = CrunchyrollManager.Instance.DefaultAndroidTvAuthSettings;
+        var ghAuth = Updater.Instance.GhAuthJson;
+        var ghAuthTv = ghAuth.FirstOrDefault(e => e.Type.Equals("tv"));
+        if (ghAuthTv != null &&
+            !string.IsNullOrEmpty(ghAuthTv.Authorization) &&
+            !string.IsNullOrEmpty(ghAuthTv.VersionName) &&
+            Helpers.CompareClientVersions(ghAuthTv.VersionName, Helpers.ExtractClientVersion(defaultSettings.UserAgent)) > 0){
+            defaultSettings.Authorization = ghAuthTv.Authorization;
+            defaultSettings.UserAgent = $"ANDROIDTV/{ghAuthTv.VersionName} Android/16";
+        }
         
         ComboBoxItem? streamEndpointSecondar = StreamEndpoints.FirstOrDefault(a => a.Content != null && (string)a.Content == defaultSettings.Endpoint) ?? null;
         SelectedStreamEndpoint = streamEndpointSecondar ?? StreamEndpoints[0];

CRD/Downloader/Crunchyroll/Views/CrunchyrollSettingsView.axaml

@@ -255,6 +255,17 @@
                 </controls:SettingsExpanderItem>
 
 
+                <controls:SettingsExpanderItem Content="Dub Download Delay"
+                                               Description="Delay in seconds before starting the next selected dub. 0 disables the delay.">
+                    <controls:SettingsExpanderItem.Footer>
+                        <controls:NumberBox Minimum="0"
+                                            Value="{Binding DubDownloadDelaySeconds}"
+                                            SpinButtonPlacementMode="Hidden"
+                                            HorizontalAlignment="Stretch" />
+                    </controls:SettingsExpanderItem.Footer>
+                </controls:SettingsExpanderItem>
+
+
                 <controls:SettingsExpanderItem Content="Stream Endpoint ">
                     <controls:SettingsExpanderItem.Footer>
                         <StackPanel>
@@ -585,6 +596,12 @@
                             <CheckBox IsChecked="{Binding MuxFonts}" Content="Mux Fonts"> </CheckBox>
                         
                             <CheckBox IsEnabled="{Binding MuxFonts}" IsChecked="{Binding MuxTypesettingFonts}" Content="Include Typesetting Fonts"> </CheckBox>
+                            <TextBlock IsVisible="{Binding MuxFonts}"
+                                       MaxWidth="360"
+                                       Margin="0,6,0,0"
+                                       Opacity="0.85"
+                                       TextWrapping="Wrap"
+                                       Text="{Binding FontMuxDisclaimer}" />
                         </StackPanel>
                     </controls:SettingsExpanderItem.Footer>
                 </controls:SettingsExpanderItem>
@@ -634,6 +651,15 @@
                                     </ItemsControl.ItemTemplate>
                                 </ComboBox>
                             </StackPanel>
+                            <StackPanel Orientation="Horizontal"
+                                        HorizontalAlignment="Right"
+                                        Spacing="8"
+                                        IsVisible="{Binding SyncTimings}">
+                                <TextBlock VerticalAlignment="Center"
+                                           Text="Mux failed dubs in selected quality" />
+                                <CheckBox VerticalAlignment="Center"
+                                          IsChecked="{Binding SyncTimingsFullQualityFallback}" />
+                            </StackPanel>
 
                         </StackPanel>
 

CRD/Downloader/History.cs

@@ -59,31 +59,59 @@ public class History{
         if (parsedSeries.Data != null){
             var result = false;
             foreach (var s in parsedSeries.Data){
-                var sId = s.Id;
+                var lang = string.IsNullOrEmpty(crunInstance.CrunOptions.HistoryLang)
+                    ? crunInstance.DefaultLocale
+                    : crunInstance.CrunOptions.HistoryLang;
+
+                var candidateIds = new List<string>();
+
                 if (s.Versions is{ Count: > 0 }){
-                    foreach (var sVersion in s.Versions.Where(sVersion => sVersion.Original == true)){
+                    candidateIds.AddRange(
-                        if (sVersion.Guid != null){
+                        s.Versions
-                            sId = sVersion.Guid;
+                            .Where(v => v.Original == true && !string.IsNullOrWhiteSpace(v.Guid))
+                            .OrderByDescending(v => v.Guid!.Length)
+                            .Select(v => v.Guid!)
+                    );
                 }
 
-                        break;
+                if (!string.IsNullOrWhiteSpace(s.Id)){
-                    }
+                    candidateIds.Add(s.Id);
                 }
 
-                if (!string.IsNullOrEmpty(seasonId) && sId != seasonId) continue;
+                candidateIds = candidateIds
+                    .Distinct(StringComparer.OrdinalIgnoreCase)
+                    .ToList();
 
+                if (!string.IsNullOrEmpty(seasonId) &&
+                    !candidateIds.Contains(seasonId, StringComparer.OrdinalIgnoreCase)){
+                    continue;
+                }
 
-                var seasonData = await crunInstance.CrSeries.GetSeasonDataById(sId, string.IsNullOrEmpty(crunInstance.CrunOptions.HistoryLang) ? crunInstance.DefaultLocale : crunInstance.CrunOptions.HistoryLang, true);
+                foreach (var candidateId in candidateIds){
+                    try{
+                        var seasonData = await crunInstance.CrSeries.GetSeasonDataById(candidateId, lang, true);
 
                         if (seasonData.Data is{ Count: > 0 }){
                             result = true;
-                    await UpdateWithSeasonData(seasonData.Data.ToList<IHistorySource>());
+                            await crunInstance.History.UpdateWithSeasonData(seasonData.Data.ToList<IHistorySource>());
+                            break;
+                        }
+                    } catch{
+                        // optional: log candidateId
+                    }
                 }
             }
 
             historySeries ??= crunInstance.HistoryList.FirstOrDefault(series => series.SeriesId == seriesId);
 
             if (historySeries != null){
+                RemoveUnavailableEpisodes(historySeries);
+                if (historySeries.Seasons.Count == 0){
+                    crunInstance.HistoryList.Remove(historySeries);
+                    CfgManager.UpdateHistoryFile();
+                    return result;
+                }
+
                 MatchHistorySeriesWithSonarr(false);
                 await MatchHistoryEpisodesWithSonarr(false, historySeries);
                 CfgManager.UpdateHistoryFile();
@@ -263,10 +291,7 @@ public class History{
             var historySeries = crunInstance.HistoryList.FirstOrDefault(series => series.SeriesId == seriesId);
             if (historySeries != null){
                 historySeries.HistorySeriesAddDate ??= DateTime.Now;
-                historySeries.SeriesType = firstEpisode.GetSeriesType();
                 historySeries.SeriesStreamingService = StreamingService.Crunchyroll;
-
-                await RefreshSeriesData(seriesId, historySeries);
                 var historySeason = historySeries.Seasons.FirstOrDefault(s => s.SeasonId == firstEpisode.GetSeasonId());
 
                 if (historySeason != null){
@@ -307,6 +332,7 @@ public class History{
                             historyEpisode.EpisodeSeasonNum = historySource.GetSeasonNum();
                             historyEpisode.EpisodeCrPremiumAirDate = historySource.GetAvailableDate();
                             historyEpisode.EpisodeType = historySource.GetEpisodeType();
+                            historyEpisode.EpisodeSeriesType = historySource.GetSeriesType();
                             historyEpisode.IsEpisodeAvailableOnStreamingService = true;
                             historyEpisode.ThumbnailImageUrl = historySource.GetImageUrl();
 
@@ -325,6 +351,9 @@ public class History{
                     newSeason.Init();
                 }
 
+                historySeries.SeriesType = InferSeriesType(historySeries);
+                await RefreshSeriesData(seriesId, historySeries);
+                _ = historySeries.LoadImage();
                 historySeries.UpdateNewEpisodes();
             } else if (!string.IsNullOrEmpty(seriesId)){
                 historySeries = new HistorySeries{
@@ -332,7 +361,7 @@ public class History{
                     SeriesId = firstEpisode.GetSeriesId(),
                     Seasons = [],
                     HistorySeriesAddDate = DateTime.Now,
-                    SeriesType = firstEpisode.GetSeriesType(),
+                    SeriesType = SeriesType.Unknown,
                     SeriesStreamingService = StreamingService.Crunchyroll
                 };
                 crunInstance.HistoryList.Add(historySeries);
@@ -341,9 +370,10 @@ public class History{
 
                 newSeason.EpisodesList.Sort(new NumericStringPropertyComparer());
 
-                await RefreshSeriesData(seriesId, historySeries);
-
                 historySeries.Seasons.Add(newSeason);
+                historySeries.SeriesType = InferSeriesType(historySeries);
+                await RefreshSeriesData(seriesId, historySeries);
+                _ = historySeries.LoadImage();
                 historySeries.UpdateNewEpisodes();
                 historySeries.Init();
                 newSeason.Init();
@@ -515,7 +545,7 @@ public class History{
 
     private async Task RefreshSeriesData(string seriesId, HistorySeries historySeries){
         if (cachedSeries == null || (!string.IsNullOrEmpty(cachedSeries.SeriesId) && cachedSeries.SeriesId != seriesId)){
-            if (historySeries.SeriesType == SeriesType.Series){
+            if (historySeries.SeriesType is SeriesType.Series or SeriesType.Movie){
                 var seriesData = await crunInstance.CrSeries.SeriesById(seriesId, string.IsNullOrEmpty(crunInstance.CrunOptions.HistoryLang) ? crunInstance.DefaultLocale : crunInstance.CrunOptions.HistoryLang, true);
                 if (seriesData is{ Data: not null }){
                     var firstEpisode = seriesData.Data.First();
@@ -658,6 +688,31 @@ public class History{
         return null;
     }
 
+    private static SeriesType InferSeriesType(HistorySeries? historySeries){
+        var seriesTypes = new List<SeriesType>();
+
+        if (historySeries != null){
+            seriesTypes.AddRange(historySeries.Seasons
+                .SelectMany(season => season.EpisodesList)
+                .Select(episode => episode.EpisodeSeriesType)
+                .Where(type => type != SeriesType.Unknown));
+        }
+
+        if (seriesTypes.Count == 0){
+            return historySeries?.SeriesType ?? SeriesType.Unknown;
+        }
+
+        if (seriesTypes.All(type => type == SeriesType.Artist)){
+            return SeriesType.Artist;
+        }
+
+        if (seriesTypes.All(type => type == SeriesType.Movie)){
+            return SeriesType.Movie;
+        }
+
+        return SeriesType.Series;
+    }
+
 
     private string GetSeriesThumbnail(CrSeriesBase series){
         // var series = await crunInstance.CrSeries.SeriesById(seriesId);
@@ -670,6 +725,39 @@ public class History{
         return "";
     }
 
+    private void RemoveUnavailableEpisodes(HistorySeries historySeries){
+        if (!crunInstance.CrunOptions.HistoryRemoveMissingEpisodes){
+            return;
+        }
+
+        var seasonsToRemove = new List<HistorySeason>();
+
+        foreach (var season in historySeries.Seasons){
+            var unavailableEpisodes = season.EpisodesList
+                .Where(episode => !episode.IsEpisodeAvailableOnStreamingService)
+                .ToList();
+
+            foreach (var episode in unavailableEpisodes){
+                season.EpisodesList.Remove(episode);
+            }
+
+            if (season.EpisodesList.Count == 0){
+                seasonsToRemove.Add(season);
+                continue;
+            }
+
+            season.EpisodesList.Sort(new NumericStringPropertyComparer());
+            season.UpdateDownloaded();
+        }
+
+        foreach (var season in seasonsToRemove){
+            historySeries.Seasons.Remove(season);
+        }
+
+        historySeries.UpdateNewEpisodes();
+        SortSeasons(historySeries);
+    }
+
 
     private HistorySeason NewHistorySeason(List<IHistorySource> episodeList, IHistorySource firstEpisode){
         var newSeason = new HistorySeason{
@@ -696,6 +784,7 @@ public class History{
                 HistoryEpisodeAvailableSoftSubs = historySource.GetEpisodeAvailableSoftSubs(),
                 EpisodeCrPremiumAirDate = historySource.GetAvailableDate(),
                 EpisodeType = historySource.GetEpisodeType(),
+                EpisodeSeriesType = historySource.GetSeriesType(),
                 IsEpisodeAvailableOnStreamingService = true,
                 ThumbnailImageUrl = historySource.GetImageUrl(),
             };
@@ -775,7 +864,7 @@ public class History{
             List<HistoryEpisode> failedEpisodes = [];
 
             Parallel.ForEach(allHistoryEpisodes, historyEpisode => {
-                if (string.IsNullOrEmpty(historyEpisode.SonarrEpisodeId)){
+                if (string.IsNullOrEmpty(historyEpisode.SonarrEpisodeId) || rematchAll){
                     // Create a copy of the episodes list for each thread
                     var episodesCopy = new List<SonarrEpisode>(episodes);
 

CRD/Downloader/ProgramManager.cs

@@ -15,6 +15,7 @@ using CommunityToolkit.Mvvm.ComponentModel;
 using CRD.Downloader.Crunchyroll;
 using CRD.Utils;
 using CRD.Utils.Files;
+using CRD.Utils.Notifications;
 using CRD.Utils.Structs;
 using CRD.Utils.Structs.Crunchyroll;
 using CRD.Utils.Structs.History;
@@ -54,12 +55,14 @@ public sealed partial class ProgramManager : ObservableObject{
     #region Startup Param Variables
 
     private Queue<Func<Task>> taskQueue = new Queue<Func<Task>>();
-    bool historyRefreshAdded = false;
+    bool historyRefreshAdded;
     private bool exitOnTaskFinish;
 
     #endregion
 
     private readonly PeriodicWorkRunner checkForNewEpisodesRunner;
+    private bool historyRefreshNotificationsArmed;
+    private static readonly TimeSpan TrackedSeriesReleaseOverlap = TimeSpan.FromMinutes(10);
 
     public IStorageProvider? StorageProvider;
 
@@ -100,7 +103,6 @@ public sealed partial class ProgramManager : ObservableObject{
     internal async Task RefreshHistory(FilterType filterType){
         FetchingData = true;
 
-
         List<HistorySeries> filteredItems;
         var historyList = CrunchyrollManager.Instance.HistoryList;
 
@@ -149,6 +151,7 @@ public sealed partial class ProgramManager : ObservableObject{
 
         FetchingData = false;
         CrunchyrollManager.Instance.History.SortItems();
+        await PublishTrackedSeriesReleaseNotificationsAsync(CrunchyrollManager.Instance);
     }
 
     private async Task AddMissingToQueue(){
@@ -158,7 +161,7 @@ public sealed partial class ProgramManager : ObservableObject{
         await Task.WhenAll(tasks);
 
 
-        while (QueueManager.Instance.Queue.Any(e => e.DownloadProgress is{ Done: false, Error: false })){
+        while (QueueManager.Instance.Queue.Any(e => !e.DownloadProgress.IsFinished)){
             Console.WriteLine("Waiting for downloads to complete...");
             await Task.Delay(2000);
         }
@@ -186,23 +189,27 @@ public sealed partial class ProgramManager : ObservableObject{
                 return;
         }
 
+        if (crunOptions.HistoryAutoRefreshAddToQueue){
             var tasks = crunchyManager.HistoryList
                 .Select(item => item.AddNewMissingToDownloads(true));
 
             await Task.WhenAll(tasks);
+        }
         
         if (Application.Current is App app){
             Dispatcher.UIThread.Post(app.UpdateTrayTooltip);
         }
+
+        historyRefreshNotificationsArmed = true;
     }
 
     internal async Task RefreshHistoryWithNewReleases(CrunchyrollManager crunchyManager, CrDownloadOptions crunOptions){
         var newEpisodesBase = await crunchyManager.CrEpisode.GetNewEpisodes(
             string.IsNullOrEmpty(crunOptions.HistoryLang) ? crunchyManager.DefaultLocale : crunOptions.HistoryLang,
             2000, null, true);
-        if (newEpisodesBase is{ Data.Count: > 0 }){
+        var newEpisodes = newEpisodesBase?.Data ?? [];
-            var newEpisodes = newEpisodesBase.Data ?? [];
 
+        if (newEpisodesBase is{ Data.Count: > 0 }){
             try{
                 await crunchyManager.History.UpdateWithEpisode(newEpisodes);
                 CfgManager.UpdateHistoryFile();
@@ -210,6 +217,114 @@ public sealed partial class ProgramManager : ObservableObject{
                 Console.Error.WriteLine("Failed to update History: " + e.Message);
             }
         }
+
+        await PublishTrackedSeriesReleaseNotificationsAsync(crunchyManager, newEpisodes);
+    }
+
+    private async Task PublishTrackedSeriesReleaseNotificationsAsync(CrunchyrollManager crunchyManager, List<CrBrowseEpisode>? releaseFeedEpisodes = null){
+        var currentCheckTimeUtc = DateTime.UtcNow;
+        var settings = crunchyManager.CrunOptions;
+        var previousCheckUtc = settings.TrackedSeriesReleaseLastCheckUtc;
+
+        if (!historyRefreshNotificationsArmed){
+            settings.TrackedSeriesReleaseLastCheckUtc = currentCheckTimeUtc;
+            CfgManager.WriteCrSettings();
+            return;
+        }
+
+        var trackedSeries = crunchyManager.HistoryList
+            .Where(series => !string.IsNullOrWhiteSpace(series.SeriesId))
+            .ToDictionary(series => series.SeriesId!, StringComparer.Ordinal);
+
+        if (trackedSeries.Count == 0){
+            settings.TrackedSeriesReleaseLastCheckUtc = currentCheckTimeUtc;
+            CfgManager.WriteCrSettings();
+            return;
+        }
+
+        releaseFeedEpisodes ??= (await crunchyManager.CrEpisode.GetNewEpisodes(
+            string.IsNullOrEmpty(crunchyManager.CrunOptions.HistoryLang) ? crunchyManager.DefaultLocale : crunchyManager.CrunOptions.HistoryLang,
+            2000, null, true))?.Data ?? [];
+
+        var notificationSettings = settings.NotificationSettings;
+        var historyUpdated = false;
+        var windowStartUtc = previousCheckUtc?.Subtract(TrackedSeriesReleaseOverlap);
+
+        foreach (var release in releaseFeedEpisodes){
+            var seriesId = release.EpisodeMetadata?.SeriesId;
+            if (string.IsNullOrWhiteSpace(seriesId) || !trackedSeries.TryGetValue(seriesId, out var historySeries)){
+                continue;
+            }
+
+            var releaseDateUtc = GetTrackedReleaseDateUtc(release);
+            if (windowStartUtc.HasValue && releaseDateUtc < windowStartUtc.Value){
+                continue;
+            }
+
+            if (releaseDateUtc > currentCheckTimeUtc){
+                continue;
+            }
+
+            var historyEpisode = crunchyManager.History.GetHistoryEpisode(seriesId, release.EpisodeMetadata.SeasonId, release.Id ?? string.Empty);
+            if (historyEpisode == null && !string.IsNullOrWhiteSpace(release.Id)){
+                historyEpisode = historySeries.Seasons
+                    .SelectMany(season => season.EpisodesList)
+                    .FirstOrDefault(episode => episode.EpisodeId == release.Id);
+            }
+
+            if (historyEpisode == null || historyEpisode.TrackedSeriesReleaseNotified){
+                continue;
+            }
+
+            var notificationSent = await NotificationPublisher.Instance.PublishTrackedSeriesEpisodeReleasedAsync(
+                notificationSettings,
+                historySeries,
+                historyEpisode,
+                release,
+                string.IsNullOrEmpty(crunchyManager.CrunOptions.HistoryLang) ? crunchyManager.DefaultLocale : crunchyManager.CrunOptions.HistoryLang
+            );
+            if (notificationSent){
+                historyEpisode.TrackedSeriesReleaseNotified = true;
+                historyUpdated = true;
+            }
+        }
+
+        settings.TrackedSeriesReleaseLastCheckUtc = currentCheckTimeUtc;
+
+        if (historyUpdated){
+            CfgManager.UpdateHistoryFile();
+        }
+
+        CfgManager.WriteCrSettings();
+    }
+
+    private static DateTime GetTrackedReleaseDateUtc(CrBrowseEpisode episode){
+        DateTime episodeAirDate = episode.EpisodeMetadata.EpisodeAirDate.Kind == DateTimeKind.Utc
+            ? episode.EpisodeMetadata.EpisodeAirDate.ToLocalTime()
+            : episode.EpisodeMetadata.EpisodeAirDate;
+
+        DateTime premiumAvailableStart = episode.EpisodeMetadata.PremiumAvailableDate.Kind == DateTimeKind.Utc
+            ? episode.EpisodeMetadata.PremiumAvailableDate.ToLocalTime()
+            : episode.EpisodeMetadata.PremiumAvailableDate;
+
+        DateTime now = DateTime.Now;
+        DateTime oneYearFromNow = now.AddYears(1);
+
+        var targetDate = premiumAvailableStart;
+
+        if (targetDate >= oneYearFromNow){
+            DateTime freeAvailableStart = episode.EpisodeMetadata.FreeAvailableDate.Kind == DateTimeKind.Utc
+                ? episode.EpisodeMetadata.FreeAvailableDate.ToLocalTime()
+                : episode.EpisodeMetadata.FreeAvailableDate;
+
+            if (freeAvailableStart <= oneYearFromNow){
+                targetDate = freeAvailableStart;
+            } else{
+                targetDate = episodeAirDate;
+            }
+        }
+
+        return targetDate.Kind == DateTimeKind.Utc ? targetDate : targetDate.ToUniversalTime();
     }
 
     public void SetBackgroundImage(){
@@ -224,6 +339,7 @@ public sealed partial class ProgramManager : ObservableObject{
             CrunchyrollManager.Instance.InitOptions();
 
             UpdateAvailable = await Updater.Instance.CheckForUpdatesAsync();
+            await Updater.Instance.CheckGhJsonAsync();
 
             if (CrunchyrollManager.Instance.CrunOptions.AccentColor != null && !string.IsNullOrEmpty(CrunchyrollManager.Instance.CrunOptions.AccentColor)){
                 if (_faTheme != null) _faTheme.CustomAccentColor = Color.Parse(CrunchyrollManager.Instance.CrunOptions.AccentColor);

CRD/Downloader/QueueManager.cs

@@ -5,26 +5,43 @@ using System.Collections.Specialized;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
+using Avalonia.Threading;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CRD.Downloader.Crunchyroll;
 using CRD.Utils;
 using CRD.Utils.CustomList;
+using CRD.Utils.QueueManagement;
 using CRD.Utils.Structs;
-using CRD.Utils.Structs.History;
 using CRD.ViewModels;
-using CRD.Views;
-using ReactiveUI;
 
 namespace CRD.Downloader;
 
 public sealed partial class QueueManager : ObservableObject{
-    
     public static QueueManager Instance{ get; } = new();
     
     #region Download Variables
 
-    public RefreshableObservableCollection<CrunchyEpMeta> Queue{ get; } = new();
+    private readonly RefreshableObservableCollection<CrunchyEpMeta> queue = new();
-    public ObservableCollection<DownloadItemModel> DownloadItemModels{ get; } = new();
+    public ReadOnlyObservableCollection<CrunchyEpMeta> Queue{ get; }
+
+    private readonly DownloadItemModelCollection downloadItems = new();
+
+    public ObservableCollection<DownloadItemModel> DownloadItemModels => downloadItems.Items;
+    
+    private readonly UiMutationQueue uiMutationQueue;
+    private readonly QueuePersistenceManager queuePersistenceManager;
+
+    private readonly object downloadStartLock = new();
+    private readonly HashSet<CrunchyEpMeta> activeOrStarting = new();
+
+    private readonly ProcessingSlotManager processingSlots;
+
+    private int pumpScheduled;
+    private int pumpDirty;
+    private DateTimeOffset? autoDownloadBlockedUntilUtc;
+    private readonly object autoDownloadBlockLock = new();
+
+    #endregion
     
     public int ActiveDownloads{
         get{
@@ -34,18 +51,7 @@ public sealed partial class QueueManager : ObservableObject{
         }
     }
 
-    private readonly object downloadStartLock = new();
+    public bool HasActiveDownloads => ActiveDownloads > 0;
-    private readonly HashSet<CrunchyEpMeta> activeOrStarting = new();
-    private readonly object processingLock = new();
-
-    private readonly SemaphoreSlim activeProcessingJobs;
-    private int processingJobsLimit;
-    private int borrowed;
-
-    private int pumpScheduled;
-    private int pumpDirty;
-
-    #endregion
 
     [ObservableProperty]
     private bool hasFailedItem;
@@ -55,18 +61,43 @@ public sealed partial class QueueManager : ObservableObject{
     private readonly CrunchyrollManager crunchyrollManager;
 
     public QueueManager(){
-        this.crunchyrollManager = CrunchyrollManager.Instance;
+        crunchyrollManager = CrunchyrollManager.Instance;
 
-        activeProcessingJobs = new SemaphoreSlim(
+        uiMutationQueue = new UiMutationQueue();
-            initialCount: crunchyrollManager.CrunOptions.SimultaneousProcessingJobs,
+        queuePersistenceManager = new QueuePersistenceManager(this);
-            maxCount: 2);
+        Queue = new ReadOnlyObservableCollection<CrunchyEpMeta>(queue);
 
-        processingJobsLimit = crunchyrollManager.CrunOptions.SimultaneousProcessingJobs;
+        processingSlots = new ProcessingSlotManager(
+            crunchyrollManager.CrunOptions.SimultaneousProcessingJobs);
 
-        Queue.CollectionChanged += UpdateItemListOnRemove;
+        queue.CollectionChanged += UpdateItemListOnRemove;
-        Queue.CollectionChanged += (_, _) => OnQueueStateChanged();
+        queue.CollectionChanged += (_, _) => OnQueueStateChanged();
     }
 
+    public void AddToQueue(CrunchyEpMeta item){
+        uiMutationQueue.Enqueue(() => {
+            if (!queue.Contains(item))
+                queue.Add(item);
+        });
+    }
+
+    public void RemoveFromQueue(CrunchyEpMeta item){
+        uiMutationQueue.Enqueue(() => {
+            int index = queue.IndexOf(item);
+            if (index >= 0)
+                queue.RemoveAt(index);
+        });
+    }
+
+    public void ClearQueue(){
+        uiMutationQueue.Enqueue(() => queue.Clear());
+    }
+
+    public void RefreshQueue(){
+        uiMutationQueue.Enqueue(() => queue.Refresh());
+    }
+
+
     public bool TryStartDownload(DownloadItemModel model){
         var item = model.epMeta;
 
@@ -74,13 +105,16 @@ public sealed partial class QueueManager : ObservableObject{
             if (activeOrStarting.Contains(item))
                 return false;
 
-            if (item.DownloadProgress is{ IsDownloading: true })
+            if (item.DownloadProgress.State is DownloadState.Downloading or DownloadState.Processing)
                 return false;
 
-            if (item.DownloadProgress is{ Done: true })
+            if (item.DownloadProgress.IsDone)
                 return false;
 
-            if (item.DownloadProgress is{ Error: true })
+            if (item.DownloadProgress.IsError)
+                return false;
+
+            if (item.DownloadProgress.IsPaused)
                 return false;
 
             if (activeOrStarting.Count >= crunchyrollManager.CrunOptions.SimultaneousDownloads)
@@ -89,11 +123,31 @@ public sealed partial class QueueManager : ObservableObject{
             activeOrStarting.Add(item);
         }
         
+        NotifyDownloadStateChanged();
         OnQueueStateChanged();
         _ = model.StartDownloadCore();
         return true;
     }
 
+    public bool TryResumeDownload(CrunchyEpMeta item){
+        lock (downloadStartLock){
+            if (activeOrStarting.Contains(item))
+                return false;
+
+            if (!item.DownloadProgress.IsPaused)
+                return false;
+
+            if (activeOrStarting.Count >= crunchyrollManager.CrunOptions.SimultaneousDownloads)
+                return false;
+
+            activeOrStarting.Add(item);
+        }
+
+        NotifyDownloadStateChanged();
+        OnQueueStateChanged();
+        return true;
+    }
+
     public void ReleaseDownloadSlot(CrunchyEpMeta item){
         bool removed;
 
@@ -102,110 +156,98 @@ public sealed partial class QueueManager : ObservableObject{
         }
 
         if (removed){
+            NotifyDownloadStateChanged();
             OnQueueStateChanged();
+
+            if (crunchyrollManager.CrunOptions.AutoDownload){
                 RequestPump();
             }
         }
+    }
 
     public Task WaitForProcessingSlotAsync(CancellationToken cancellationToken = default){
-        return activeProcessingJobs.WaitAsync(cancellationToken);
+        return processingSlots.WaitAsync(cancellationToken);
     }
 
     public void ReleaseProcessingSlot(){
-        lock (processingLock){
+        processingSlots.Release();
-            if (borrowed > 0){
-                borrowed--;
-                return;
     }
 
-            activeProcessingJobs.Release();
+    public void SetProcessingLimit(int newLimit){
-        }
+        processingSlots.SetLimit(newLimit);
     }
 
-    public void SetLimit(int newLimit){
+    public void RestorePersistedQueue(){
-        if (newLimit < 0)
+        queuePersistenceManager.RestoreQueue();
-            throw new ArgumentOutOfRangeException(nameof(newLimit));
-
-        lock (processingLock){
-            if (newLimit == processingJobsLimit)
-                return;
-
-            int delta = newLimit - processingJobsLimit;
-
-            if (delta > 0){
-                int giveBack = Math.Min(borrowed, delta);
-                borrowed -= giveBack;
-
-                int toRelease = delta - giveBack;
-                if (toRelease > 0)
-                    activeProcessingJobs.Release(toRelease);
-            } else{
-                int toRemove = -delta;
-
-
-                while (toRemove > 0 && activeProcessingJobs.Wait(0)){
-                    toRemove--;
     }
 
-
+    public void SaveQueueSnapshot(){
-                borrowed += toRemove;
+        queuePersistenceManager.SaveNow();
     }
 
-            processingJobsLimit = newLimit;
+    internal List<CrunchyEpMeta> GetQueueSnapshot(){
+        if (Dispatcher.UIThread.CheckAccess()){
+            return queue.ToList();
         }
+
+        return Dispatcher.UIThread
+            .InvokeAsync(() => queue.ToList())
+            .GetAwaiter()
+            .GetResult();
+    }
+
+    public void ReplaceQueue(IEnumerable<CrunchyEpMeta> items){
+        uiMutationQueue.Enqueue(() => {
+            queue.Clear();
+            foreach (var item in items){
+                if (!queue.Contains(item))
+                    queue.Add(item);
+            }
+
+            RestoreRetryStateFromQueue();
+            UpdateDownloadListItems();
+        });
     }
 
     private void UpdateItemListOnRemove(object? sender, NotifyCollectionChangedEventArgs e){
         if (e.Action == NotifyCollectionChangedAction.Remove){
-            if (e.OldItems != null)
+            if (e.OldItems != null){
-                foreach (var eOldItem in e.OldItems){
+                foreach (var oldItem in e.OldItems.OfType<CrunchyEpMeta>()){
-                    var downloadItem = DownloadItemModels.FirstOrDefault(downloadItem => downloadItem.epMeta.Equals(eOldItem));
+                    downloadItems.Remove(oldItem);
-                    if (downloadItem != null){
-                        DownloadItemModels.Remove(downloadItem);
-                    } else{
-                        Console.Error.WriteLine("Failed to Remove Episode from list");
                 }
             }
-        } else if (e.Action == NotifyCollectionChangedAction.Reset && Queue.Count == 0){
+        } else if (e.Action == NotifyCollectionChangedAction.Reset && queue.Count == 0){
-            DownloadItemModels.Clear();
+            downloadItems.Clear();
         }
 
         UpdateDownloadListItems();
     }
 
     public void MarkDownloadFinished(CrunchyEpMeta item, bool removeFromQueue){
-        Avalonia.Threading.Dispatcher.UIThread.Post(() => {
+        uiMutationQueue.Enqueue(() => {
             if (removeFromQueue){
-                if (Queue.Contains(item))
+                int index = queue.IndexOf(item);
-                    Queue.Remove(item);
+                if (index >= 0)
+                    queue.RemoveAt(index);
             } else{
-                Queue.Refresh();
+                queue.Refresh();
             }
 
             OnQueueStateChanged();
-        }, Avalonia.Threading.DispatcherPriority.Background);
+        });
     }
 
     public void UpdateDownloadListItems(){
-        foreach (CrunchyEpMeta crunchyEpMeta in Queue.ToList()){
+        downloadItems.SyncFromQueue(queue);
-            var downloadItem = DownloadItemModels.FirstOrDefault(e => e.epMeta.Equals(crunchyEpMeta));
-            if (downloadItem != null){
-                downloadItem.Refresh();
-            } else{
-                downloadItem = new DownloadItemModel(crunchyEpMeta);
-                _ = downloadItem.LoadImage();
-                DownloadItemModels.Add(downloadItem);
-            }
-        }
 
-        HasFailedItem = Queue.Any(item => item.DownloadProgress.Error);
+        HasFailedItem = queue.Any(item => item.DownloadProgress.IsError);
 
         if (crunchyrollManager.CrunOptions.AutoDownload){
             RequestPump();
         }
     }
 
-    public void RequestPump(){
+    private void RequestPump(){
         Interlocked.Exchange(ref pumpDirty, 1);
 
         if (Interlocked.CompareExchange(ref pumpScheduled, 1, 0) != 0)
@@ -234,7 +276,26 @@ public sealed partial class QueueManager : ObservableObject{
     }
 
     private void PumpQueue(){
+        if (!crunchyrollManager.CrunOptions.AutoDownload)
+            return;
+
+        lock (autoDownloadBlockLock){
+            if (autoDownloadBlockedUntilUtc.HasValue && !HasPendingRetryItems()){
+                autoDownloadBlockedUntilUtc = null;
+            }
+
+            if (autoDownloadBlockedUntilUtc.HasValue && autoDownloadBlockedUntilUtc.Value > DateTimeOffset.UtcNow){
+                return;
+            }
+
+            if (autoDownloadBlockedUntilUtc.HasValue){
+                autoDownloadBlockedUntilUtc = null;
+            }
+        }
+        
         List<CrunchyEpMeta> toStart = new();
+        List<CrunchyEpMeta> toResume = new();
+        bool changed = false;
         
         lock (downloadStartLock){
             int limit = crunchyrollManager.CrunOptions.SimultaneousDownloads;
@@ -243,17 +304,20 @@ public sealed partial class QueueManager : ObservableObject{
             if (freeSlots == 0)
                 return;
 
-            foreach (var item in Queue.ToList()){
+            foreach (var item in queue.ToList()){
                 if (freeSlots == 0)
                     break;
 
-                if (item.DownloadProgress.Error)
+                if (item.DownloadProgress.IsError)
                     continue;
 
-                if (item.DownloadProgress.Done)
+                if (item.DownloadProgress.IsWaitingForRetry)
                     continue;
 
-                if (item.DownloadProgress.IsDownloading)
+                if (item.DownloadProgress.IsDone)
+                    continue;
+
+                if (item.DownloadProgress.State is DownloadState.Downloading or DownloadState.Processing)
                     continue;
 
                 if (activeOrStarting.Contains(item))
@@ -261,12 +325,29 @@ public sealed partial class QueueManager : ObservableObject{
 
                 activeOrStarting.Add(item);
                 freeSlots--;
+
+                if (item.DownloadProgress.IsPaused){
+                    toResume.Add(item);
+                } else{
                     toStart.Add(item);
                 }
+
+                changed = true;
+            }
+        }
+        
+        if (changed){
+            NotifyDownloadStateChanged();
+        }
+
+        foreach (var item in toResume){
+            item.DownloadProgress.State = item.DownloadProgress.ResumeState;
+            var model = downloadItems.Find(item);
+            model?.Refresh();
         }
 
         foreach (var item in toStart){
-            var model = DownloadItemModels.FirstOrDefault(x => x.epMeta.Equals(item));
+            var model = downloadItems.Find(item);
             if (model != null){
                 _ = model.StartDownloadCore();
             } else{
@@ -277,431 +358,110 @@ public sealed partial class QueueManager : ObservableObject{
         OnQueueStateChanged();
     }
 
+    public void BlockAutoDownloadUntil(TimeSpan delay, CancellationToken cancellationToken = default){
+        DateTimeOffset unblockAt = DateTimeOffset.UtcNow.Add(delay);
+
+        lock (autoDownloadBlockLock){
+            if (!autoDownloadBlockedUntilUtc.HasValue || unblockAt > autoDownloadBlockedUntilUtc.Value){
+                autoDownloadBlockedUntilUtc = unblockAt;
+            } else{
+                unblockAt = autoDownloadBlockedUntilUtc.Value;
+            }
+        }
+
+        _ = Task.Run(async () => {
+            try{
+                var remaining = unblockAt - DateTimeOffset.UtcNow;
+                if (remaining > TimeSpan.Zero){
+                    await Task.Delay(remaining, cancellationToken);
+                }
+
+                lock (autoDownloadBlockLock){
+                    if (autoDownloadBlockedUntilUtc.HasValue && autoDownloadBlockedUntilUtc.Value <= DateTimeOffset.UtcNow){
+                        autoDownloadBlockedUntilUtc = null;
+                    }
+                }
+
+                RefreshQueue();
+                UpdateDownloadListItems();
+            } catch (OperationCanceledException){
+                // ignored
+            }
+        }, cancellationToken);
+    }
+
+    public void ScheduleRetry(CrunchyEpMeta item, TimeSpan delay, string statusText, CancellationToken cancellationToken = default){
+        item.DownloadProgress.ScheduleRetry(delay, statusText);
+        RefreshQueue();
+        OnQueueStateChanged();
+
+        ScheduleRetryWake(item, item.DownloadProgress.RetryAtUtc, cancellationToken);
+    }
+
+    private void RestoreRetryStateFromQueue(){
+        var retryItems = queue
+            .Where(item => item.DownloadProgress.IsWaitingForRetry)
+            .ToList();
+
+        if (retryItems.Count == 0){
+            lock (autoDownloadBlockLock){
+                autoDownloadBlockedUntilUtc = null;
+            }
+
+            return;
+        }
+
+        var maxRetryAt = retryItems
+            .Select(item => item.DownloadProgress.RetryAtUtc)
+            .OfType<DateTimeOffset>()
+            .Max();
+
+        lock (autoDownloadBlockLock){
+            autoDownloadBlockedUntilUtc = maxRetryAt;
+        }
+
+        foreach (var retryItem in retryItems){
+            ScheduleRetryWake(retryItem, retryItem.DownloadProgress.RetryAtUtc);
+        }
+    }
+
+    private bool HasPendingRetryItems(){
+        return queue.Any(item => item.DownloadProgress.IsWaitingForRetry);
+    }
+
+    private void ScheduleRetryWake(CrunchyEpMeta item, DateTimeOffset? retryAtUtc, CancellationToken cancellationToken = default){
+        if (!retryAtUtc.HasValue){
+            return;
+        }
+
+        _ = Task.Run(async () => {
+            try{
+                var remaining = retryAtUtc.Value - DateTimeOffset.UtcNow;
+                if (remaining > TimeSpan.Zero){
+                    await Task.Delay(remaining, cancellationToken);
+                }
+
+                if (cancellationToken.IsCancellationRequested){
+                    return;
+                }
+
+                item.DownloadProgress.RetryAtUtc = null;
+                RefreshQueue();
+                UpdateDownloadListItems();
+            } catch (OperationCanceledException){
+                // ignored
+            }
+        }, cancellationToken);
+    }
+
 
     private void OnQueueStateChanged(){
         QueueStateChanged?.Invoke(this, EventArgs.Empty);
     }
     
-
+    private void NotifyDownloadStateChanged(){
-    public async Task CrAddEpisodeToQueue(string epId, string crLocale, List<string> dubLang, bool updateHistory = false, EpisodeDownloadMode episodeDownloadMode = EpisodeDownloadMode.Default){
+        OnPropertyChanged(nameof(ActiveDownloads));
-        if (string.IsNullOrEmpty(epId)){
+        OnPropertyChanged(nameof(HasActiveDownloads));
-            return;
     }
     
-        await CrunchyrollManager.Instance.CrAuthEndpoint1.RefreshToken(true);
-
-        var episodeL = await CrunchyrollManager.Instance.CrEpisode.ParseEpisodeById(epId, crLocale);
-
-
-        if (episodeL != null){
-            if (episodeL.IsPremiumOnly && !CrunchyrollManager.Instance.CrAuthEndpoint1.Profile.HasPremium){
-                MessageBus.Current.SendMessage(new ToastMessage($"Episode is a premium episode – make sure that you are signed in with an account that has an active premium subscription", ToastType.Error, 3));
-                return;
-            }
-
-            var sList = await CrunchyrollManager.Instance.CrEpisode.EpisodeData(episodeL, updateHistory);
-
-            (HistoryEpisode? historyEpisode, List<string> dublist, List<string> sublist, string downloadDirPath, string videoQuality) historyEpisode = (null, [], [], "", "");
-
-            if (CrunchyrollManager.Instance.CrunOptions.History){
-                var variant = sList.EpisodeAndLanguages.Variants.First();
-                historyEpisode = CrunchyrollManager.Instance.History.GetHistoryEpisodeWithDubListAndDownloadDir(variant.Item.SeriesId, variant.Item.SeasonId, variant.Item.Id);
-                if (historyEpisode.dublist.Count > 0){
-                    dubLang = historyEpisode.dublist;
-                }
-            }
-
-
-            var selected = CrunchyrollManager.Instance.CrEpisode.EpisodeMeta(sList, dubLang);
-
-            if (CrunchyrollManager.Instance.CrunOptions.IncludeVideoDescription){
-                if (selected.Data is{ Count: > 0 }){
-                    var episode = await CrunchyrollManager.Instance.CrEpisode.ParseEpisodeById(selected.Data.First().MediaId,
-                        string.IsNullOrEmpty(CrunchyrollManager.Instance.CrunOptions.DescriptionLang) ? CrunchyrollManager.Instance.DefaultLocale : CrunchyrollManager.Instance.CrunOptions.DescriptionLang, true);
-                    selected.Description = episode?.Description ?? selected.Description;
-                }
-            }
-
-            if (selected.Data is{ Count: > 0 }){
-                if (CrunchyrollManager.Instance.CrunOptions.History){
-                    // var historyEpisode = CrHistory.GetHistoryEpisodeWithDownloadDir(selected.ShowId, selected.SeasonId, selected.Data.First().MediaId);
-                    if (CrunchyrollManager.Instance.CrunOptions.SonarrProperties is{ SonarrEnabled: true, UseSonarrNumbering: true }){
-                        if (historyEpisode.historyEpisode != null){
-                            if (!string.IsNullOrEmpty(historyEpisode.historyEpisode.SonarrEpisodeNumber)){
-                                selected.EpisodeNumber = historyEpisode.historyEpisode.SonarrEpisodeNumber;
-                            }
-
-                            if (!string.IsNullOrEmpty(historyEpisode.historyEpisode.SonarrSeasonNumber)){
-                                selected.Season = historyEpisode.historyEpisode.SonarrSeasonNumber;
-                            }
-                        }
-                    }
-
-                    if (!string.IsNullOrEmpty(historyEpisode.downloadDirPath)){
-                        selected.DownloadPath = historyEpisode.downloadDirPath;
-                    }
-                }
-
-                selected.VideoQuality = !string.IsNullOrEmpty(historyEpisode.videoQuality) ? historyEpisode.videoQuality : CrunchyrollManager.Instance.CrunOptions.QualityVideo;
-
-                selected.DownloadSubs = historyEpisode.sublist.Count > 0 ? historyEpisode.sublist : CrunchyrollManager.Instance.CrunOptions.DlSubs;
-
-                selected.OnlySubs = episodeDownloadMode == EpisodeDownloadMode.OnlySubs;
-
-                if (CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub && selected.Data.Count > 1){
-                    var sortedMetaData = selected.Data
-                        .OrderBy(metaData => {
-                            var locale = metaData.Lang?.CrLocale ?? string.Empty;
-                            var index = dubLang.IndexOf(locale);
-                            return index != -1 ? index : int.MaxValue;
-                        })
-                        .ToList();
-
-                    if (sortedMetaData.Count != 0){
-                        var first = sortedMetaData.First();
-                        selected.Data = [first];
-                        selected.SelectedDubs = [first.Lang?.CrLocale ?? string.Empty];
-                    }
-                }
-
-                var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
-
-                if (newOptions == null){
-                    Console.Error.WriteLine("Failed to create a copy of your current settings");
-                    MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode to the queue, check the logs", ToastType.Error, 2));
-                    return;
-                }
-
-                switch (episodeDownloadMode){
-                    case EpisodeDownloadMode.OnlyVideo:
-                        newOptions.Novids = false;
-                        newOptions.Noaudio = true;
-                        selected.DownloadSubs = ["none"];
-                        break;
-                    case EpisodeDownloadMode.OnlyAudio:
-                        newOptions.Novids = true;
-                        newOptions.Noaudio = false;
-                        selected.DownloadSubs = ["none"];
-                        break;
-                    case EpisodeDownloadMode.OnlySubs:
-                        newOptions.Novids = true;
-                        newOptions.Noaudio = true;
-                        break;
-                    case EpisodeDownloadMode.Default:
-                    default:
-                        break;
-                }
-
-                if (!selected.DownloadSubs.Contains("none") && selected.DownloadSubs.All(item => (selected.AvailableSubs ?? []).Contains(item))){
-                    if (!(selected.Data.Count < dubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub)){
-                        selected.HighlightAllAvailable = true;
-                    }
-                }
-
-                if (newOptions.DownloadOnlyWithAllSelectedDubSub){
-                    if (!selected.DownloadSubs.Contains("none") && !selected.DownloadSubs.Contains("all") && !selected.DownloadSubs.All(item => (selected.AvailableSubs ?? []).Contains(item))){
-                        //missing subs
-                        Console.Error.WriteLine($"Episode not added because of missing subs - {selected.SeasonTitle} - Season {selected.Season} - {selected.EpisodeTitle}");
-                        return;
-                    }
-
-                    if (selected.Data.Count < dubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub){
-                        //missing dubs
-                        Console.Error.WriteLine($"Episode not added because of missing dubs - {selected.SeasonTitle} - Season {selected.Season} - {selected.EpisodeTitle}");
-                        return;
-                    }
-                }
-
-                newOptions.DubLang = dubLang;
-
-                selected.DownloadSettings = newOptions;
-
-                Queue.Add(selected);
-
-
-                if (selected.Data.Count < dubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub){
-                    Console.WriteLine("Added Episode to Queue but couldn't find all selected dubs");
-                    Console.Error.WriteLine("Added Episode to Queue but couldn't find all selected dubs - Available dubs/subs: ");
-
-                    var languages = sList.EpisodeAndLanguages.Variants
-                        .Select(v => $"{(v.Item.IsPremiumOnly ? "+ " : "")}{v.Lang.CrLocale}")
-                        .ToArray();
-
-                    Console.Error.WriteLine(
-                        $"{selected.SeasonTitle} - Season {selected.Season} - {selected.EpisodeTitle} dubs - [{string.Join(", ", languages)}] subs - [{string.Join(", ", selected.AvailableSubs ?? [])}]");
-                    MessageBus.Current.SendMessage(new ToastMessage($"Added episode to the queue but couldn't find all selected dubs", ToastType.Warning, 2));
-                } else{
-                    Console.WriteLine("Added Episode to Queue");
-                    MessageBus.Current.SendMessage(new ToastMessage($"Added episode to the queue", ToastType.Information, 1));
-                }
-            } else{
-                Console.WriteLine("Episode couldn't be added to Queue");
-                Console.Error.WriteLine("Episode couldn't be added to Queue - Available dubs/subs: ");
-
-                var languages = sList.EpisodeAndLanguages.Variants
-                    .Select(v => $"{(v.Item.IsPremiumOnly ? "+ " : "")}{v.Lang.CrLocale}")
-                    .ToArray();
-
-                Console.Error.WriteLine($"{selected.SeasonTitle} - Season {selected.Season} - {selected.EpisodeTitle} dubs - [{string.Join(", ", languages)}] subs - [{string.Join(", ", selected.AvailableSubs ?? [])}]");
-                if (!CrunchyrollManager.Instance.CrunOptions.DownloadOnlyWithAllSelectedDubSub){
-                    MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode to the queue with current dub settings", ToastType.Error, 2));
-                }
-            }
-
-            return;
-        }
-
-        Console.WriteLine("Couldn't find episode trying to find movie with id");
-
-        var movie = await CrunchyrollManager.Instance.CrMovies.ParseMovieById(epId, crLocale);
-
-        if (movie != null){
-            var movieMeta = CrunchyrollManager.Instance.CrMovies.EpisodeMeta(movie, dubLang);
-
-            if (movieMeta != null){
-                movieMeta.DownloadSubs = CrunchyrollManager.Instance.CrunOptions.DlSubs;
-                movieMeta.OnlySubs = episodeDownloadMode == EpisodeDownloadMode.OnlySubs;
-
-                var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
-
-                if (newOptions == null){
-                    Console.Error.WriteLine("Failed to create a copy of your current settings");
-                    MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode to the queue, check the logs", ToastType.Error, 2));
-                    return;
-                }
-
-                switch (episodeDownloadMode){
-                    case EpisodeDownloadMode.OnlyVideo:
-                        newOptions.Novids = false;
-                        newOptions.Noaudio = true;
-                        movieMeta.DownloadSubs = ["none"];
-                        break;
-                    case EpisodeDownloadMode.OnlyAudio:
-                        newOptions.Novids = true;
-                        newOptions.Noaudio = false;
-                        movieMeta.DownloadSubs = ["none"];
-                        break;
-                    case EpisodeDownloadMode.OnlySubs:
-                        newOptions.Novids = true;
-                        newOptions.Noaudio = true;
-                        break;
-                    case EpisodeDownloadMode.Default:
-                    default:
-                        break;
-                }
-
-                newOptions.DubLang = dubLang;
-
-                movieMeta.DownloadSettings = newOptions;
-
-                movieMeta.VideoQuality = CrunchyrollManager.Instance.CrunOptions.QualityVideo;
-
-                if (newOptions.DownloadOnlyWithAllSelectedDubSub){
-                    if (!movieMeta.DownloadSubs.Contains("none") && !movieMeta.DownloadSubs.Contains("all") && !movieMeta.DownloadSubs.All(item => (movieMeta.AvailableSubs ?? []).Contains(item))){
-                        //missing subs
-                        Console.Error.WriteLine($"Episode not added because of missing subs - {movieMeta.SeasonTitle} - Season {movieMeta.Season} - {movieMeta.EpisodeTitle}");
-                        return;
-                    }
-
-                    if (movieMeta.Data.Count < dubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub){
-                        //missing dubs
-                        Console.Error.WriteLine($"Episode not added because of missing dubs - {movieMeta.SeasonTitle} - Season {movieMeta.Season} - {movieMeta.EpisodeTitle}");
-                        return;
-                    }
-                }
-
-                Queue.Add(movieMeta);
-
-                Console.WriteLine("Added Movie to Queue");
-                MessageBus.Current.SendMessage(new ToastMessage($"Added Movie to Queue", ToastType.Information, 1));
-                return;
-            }
-        }
-
-        Console.Error.WriteLine($"No episode or movie found with the id: {epId}");
-        MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode to the queue - No episode or movie found with the id: {epId}", ToastType.Error, 3));
-    }
-
-
-    public void CrAddMusicMetaToQueue(CrunchyEpMeta epMeta){
-        var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
-        epMeta.DownloadSettings = newOptions;
-
-        Queue.Add(epMeta);
-        MessageBus.Current.SendMessage(new ToastMessage($"Added episode to the queue", ToastType.Information, 1));
-    }
-
-    public async Task CrAddMusicVideoToQueue(string epId, string overrideDownloadPath = ""){
-        await CrunchyrollManager.Instance.CrAuthEndpoint1.RefreshToken(true);
-
-        var musicVideo = await CrunchyrollManager.Instance.CrMusic.ParseMusicVideoByIdAsync(epId, "");
-
-        if (musicVideo != null){
-            var musicVideoMeta = CrunchyrollManager.Instance.CrMusic.EpisodeMeta(musicVideo);
-
-            (HistoryEpisode? historyEpisode, List<string> dublist, List<string> sublist, string downloadDirPath, string videoQuality) historyEpisode = (null, [], [], "", "");
-
-            if (CrunchyrollManager.Instance.CrunOptions.History){
-                historyEpisode = CrunchyrollManager.Instance.History.GetHistoryEpisodeWithDubListAndDownloadDir(musicVideoMeta.SeriesId, musicVideoMeta.SeasonId, musicVideoMeta.Data.First().MediaId);
-            }
-
-            musicVideoMeta.DownloadPath = !string.IsNullOrEmpty(overrideDownloadPath) ? overrideDownloadPath : (!string.IsNullOrEmpty(historyEpisode.downloadDirPath) ? historyEpisode.downloadDirPath : "");
-            musicVideoMeta.VideoQuality = !string.IsNullOrEmpty(historyEpisode.videoQuality) ? historyEpisode.videoQuality : CrunchyrollManager.Instance.CrunOptions.QualityVideo;
-
-            var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
-            musicVideoMeta.DownloadSettings = newOptions;
-
-            Queue.Add(musicVideoMeta);
-            MessageBus.Current.SendMessage(new ToastMessage($"Added music video to the queue", ToastType.Information, 1));
-        }
-    }
-
-    public async Task CrAddConcertToQueue(string epId, string overrideDownloadPath = ""){
-        await CrunchyrollManager.Instance.CrAuthEndpoint1.RefreshToken(true);
-
-        var concert = await CrunchyrollManager.Instance.CrMusic.ParseConcertByIdAsync(epId, "");
-
-        if (concert != null){
-            var concertMeta = CrunchyrollManager.Instance.CrMusic.EpisodeMeta(concert);
-
-            (HistoryEpisode? historyEpisode, List<string> dublist, List<string> sublist, string downloadDirPath, string videoQuality) historyEpisode = (null, [], [], "", "");
-
-            if (CrunchyrollManager.Instance.CrunOptions.History){
-                historyEpisode = CrunchyrollManager.Instance.History.GetHistoryEpisodeWithDubListAndDownloadDir(concertMeta.SeriesId, concertMeta.SeasonId, concertMeta.Data.First().MediaId);
-            }
-
-            concertMeta.DownloadPath = !string.IsNullOrEmpty(overrideDownloadPath) ? overrideDownloadPath : (!string.IsNullOrEmpty(historyEpisode.downloadDirPath) ? historyEpisode.downloadDirPath : "");
-            concertMeta.VideoQuality = !string.IsNullOrEmpty(historyEpisode.videoQuality) ? historyEpisode.videoQuality : CrunchyrollManager.Instance.CrunOptions.QualityVideo;
-
-            var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
-            concertMeta.DownloadSettings = newOptions;
-
-            Queue.Add(concertMeta);
-            MessageBus.Current.SendMessage(new ToastMessage($"Added concert to the queue", ToastType.Information, 1));
-        }
-    }
-
-
-    public async Task CrAddSeriesToQueue(CrunchySeriesList list, CrunchyMultiDownload data){
-        var selected = CrunchyrollManager.Instance.CrSeries.ItemSelectMultiDub(list.Data, data.DubLang, data.AllEpisodes, data.E);
-
-        var failed = false;
-        var partialAdd = false;
-
-
-        foreach (var crunchyEpMeta in selected.Values.ToList()){
-            if (crunchyEpMeta.Data.FirstOrDefault() != null){
-                if (CrunchyrollManager.Instance.CrunOptions.History){
-                    var historyEpisode = CrunchyrollManager.Instance.History.GetHistoryEpisodeWithDownloadDir(crunchyEpMeta.SeriesId, crunchyEpMeta.SeasonId, crunchyEpMeta.Data.First().MediaId);
-                    if (CrunchyrollManager.Instance.CrunOptions.SonarrProperties is{ SonarrEnabled: true, UseSonarrNumbering: true }){
-                        if (historyEpisode.historyEpisode != null){
-                            if (!string.IsNullOrEmpty(historyEpisode.historyEpisode.SonarrEpisodeNumber)){
-                                crunchyEpMeta.EpisodeNumber = historyEpisode.historyEpisode.SonarrEpisodeNumber;
-                            }
-
-                            if (!string.IsNullOrEmpty(historyEpisode.historyEpisode.SonarrSeasonNumber)){
-                                crunchyEpMeta.Season = historyEpisode.historyEpisode.SonarrSeasonNumber;
-                            }
-                        }
-                    }
-
-                    if (!string.IsNullOrEmpty(historyEpisode.downloadDirPath)){
-                        crunchyEpMeta.DownloadPath = historyEpisode.downloadDirPath;
-                    }
-                }
-
-                if (CrunchyrollManager.Instance.CrunOptions.IncludeVideoDescription){
-                    if (crunchyEpMeta.Data is{ Count: > 0 }){
-                        var episode = await CrunchyrollManager.Instance.CrEpisode.ParseEpisodeById(crunchyEpMeta.Data.First().MediaId,
-                            string.IsNullOrEmpty(CrunchyrollManager.Instance.CrunOptions.DescriptionLang) ? CrunchyrollManager.Instance.DefaultLocale : CrunchyrollManager.Instance.CrunOptions.DescriptionLang, true);
-                        crunchyEpMeta.Description = episode?.Description ?? crunchyEpMeta.Description;
-                    }
-                }
-
-                var subLangList = CrunchyrollManager.Instance.History.GetSubList(crunchyEpMeta.SeriesId, crunchyEpMeta.SeasonId);
-
-                crunchyEpMeta.VideoQuality = !string.IsNullOrEmpty(subLangList.videoQuality) ? subLangList.videoQuality : CrunchyrollManager.Instance.CrunOptions.QualityVideo;
-                crunchyEpMeta.DownloadSubs = subLangList.sublist.Count > 0 ? subLangList.sublist : CrunchyrollManager.Instance.CrunOptions.DlSubs;
-
-
-                if (CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub && crunchyEpMeta.Data.Count > 1){
-                    var sortedMetaData = crunchyEpMeta.Data
-                        .OrderBy(metaData => {
-                            var locale = metaData.Lang?.CrLocale ?? string.Empty;
-                            var index = data.DubLang.IndexOf(locale);
-                            return index != -1 ? index : int.MaxValue;
-                        })
-                        .ToList();
-
-                    if (sortedMetaData.Count != 0){
-                        var first = sortedMetaData.First();
-                        crunchyEpMeta.Data = [first];
-                        crunchyEpMeta.SelectedDubs = [first.Lang?.CrLocale ?? string.Empty];
-                    }
-                }
-
-                var newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
-
-                if (newOptions == null){
-                    Console.Error.WriteLine("Failed to create a copy of your current settings");
-                    MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode to the queue, check the logs", ToastType.Error, 2));
-                    return;
-                }
-
-                if (crunchyEpMeta.OnlySubs){
-                    newOptions.Novids = true;
-                    newOptions.Noaudio = true;
-                }
-
-                newOptions.DubLang = data.DubLang;
-
-                crunchyEpMeta.DownloadSettings = newOptions;
-
-                if (!crunchyEpMeta.DownloadSubs.Contains("none") && crunchyEpMeta.DownloadSubs.All(item => (crunchyEpMeta.AvailableSubs ?? []).Contains(item))){
-                    if (!(crunchyEpMeta.Data.Count < data.DubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub)){
-                        crunchyEpMeta.HighlightAllAvailable = true;
-                    }
-                }
-
-                if (newOptions.DownloadOnlyWithAllSelectedDubSub){
-                    if (!crunchyEpMeta.DownloadSubs.Contains("none") && !crunchyEpMeta.DownloadSubs.Contains("all") && !crunchyEpMeta.DownloadSubs.All(item => (crunchyEpMeta.AvailableSubs ?? []).Contains(item))){
-                        //missing subs
-                        Console.Error.WriteLine($"Episode not added because of missing subs - {crunchyEpMeta.SeasonTitle} - Season {crunchyEpMeta.Season} - {crunchyEpMeta.EpisodeTitle}");
-                        continue;
-                    }
-
-                    if (crunchyEpMeta.Data.Count < data.DubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub){
-                        //missing dubs
-                        Console.Error.WriteLine($"Episode not added because of missing dubs - {crunchyEpMeta.SeasonTitle} - Season {crunchyEpMeta.Season} - {crunchyEpMeta.EpisodeTitle}");
-                        continue;
-                    }
-                }
-
-                Queue.Add(crunchyEpMeta);
-
-                if (crunchyEpMeta.Data.Count < data.DubLang.Count && !CrunchyrollManager.Instance.CrunOptions.DownloadFirstAvailableDub){
-                    Console.WriteLine("Added Episode to Queue but couldn't find all selected dubs");
-                    Console.Error.WriteLine("Added Episode to Queue but couldn't find all selected dubs - Available dubs/subs: ");
-
-                    partialAdd = true;
-
-                    var languages = (crunchyEpMeta.Data.First().Versions ?? []).Select(version => $"{(version.IsPremiumOnly ? "+ " : "")}{version.AudioLocale}").ToArray();
-
-                    Console.Error.WriteLine(
-                        $"{crunchyEpMeta.SeasonTitle} - Season {crunchyEpMeta.Season} - {crunchyEpMeta.EpisodeTitle} dubs - [{string.Join(", ", languages)}] subs - [{string.Join(", ", crunchyEpMeta.AvailableSubs ?? [])}]");
-                    MessageBus.Current.SendMessage(new ToastMessage($"Added episode to the queue but couldn't find all selected dubs", ToastType.Warning, 2));
-                }
-            } else{
-                failed = true;
-            }
-        }
-
-        if (failed && !partialAdd){
-            MainWindow.Instance.ShowError("Not all episodes could be added – make sure that you are signed in with an account that has an active premium subscription?");
-        } else if (selected.Values.Count > 0 && !partialAdd){
-            MessageBus.Current.SendMessage(new ToastMessage($"Added episodes to the queue", ToastType.Information, 1));
-        } else if (!partialAdd){
-            MessageBus.Current.SendMessage(new ToastMessage($"Couldn't add episode(s) to the queue with current dub settings", ToastType.Error, 2));
-        }
-    }
 }

CRD/Utils/AudioPlayer.cs

@@ -1,29 +1,178 @@
-using System;
+using System;
+using System.IO;
+using System.Threading.Tasks;
 using NetCoreAudio;
+using NAudio.Wave;
 
 namespace CRD.Utils;
 
 public class AudioPlayer{
     private readonly Player _player;
-    private bool _isPlaying = false;
+    private bool _isPlaying;
+    private WaveOutEvent? _waveOut;
+    private AudioFileReader? _audioFileReader;
+    private TaskCompletionSource? _playbackCompleted;
 
     public AudioPlayer(){
         _player = new Player();
     }
 
-    public async void Play(string path){
+    public static (bool IsValid, string ErrorMessage) ValidateSoundFile(string path){
+        if (string.IsNullOrWhiteSpace(path)){
+            return (false, "The selected sound file path is empty.");
+        }
+
+        if (!File.Exists(path)){
+            return (false, "The selected sound file does not exist.");
+        }
+
+        try{
+            using var stream = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Read);
+            if (stream.Length == 0){
+                return (false, "The selected sound file is empty.");
+            }
+        } catch (Exception exception){
+            return (false, $"The selected sound file could not be opened: {exception.Message}");
+        }
+
+        if (string.IsNullOrWhiteSpace(Path.GetExtension(path))){
+            return (false, "The selected sound file has no file extension.");
+        }
+
+        return (true, string.Empty);
+    }
+
+    public async Task<(bool IsSuccess, string ErrorMessage)> ValidatePlaybackAsync(string path){
+        var fileValidation = ValidateSoundFile(path);
+        if (!fileValidation.IsValid){
+            return (false, fileValidation.ErrorMessage);
+        }
+
+        if (_isPlaying){
+            return (false, "Audio playback is already in progress.");
+        }
+
+        if (OperatingSystem.IsWindows()){
+            try{
+                _isPlaying = true;
+                DisposeWindowsPlayback();
+
+                _audioFileReader = new AudioFileReader(path);
+                _waveOut = new WaveOutEvent();
+                _playbackCompleted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
+
+                _waveOut.PlaybackStopped += (_, args) => {
+                    if (args.Exception != null){
+                        _playbackCompleted?.TrySetException(args.Exception);
+                    } else{
+                        _playbackCompleted?.TrySetResult();
+                    }
+                };
+
+                _waveOut.Init(_audioFileReader);
+                _waveOut.Play();
+                await _playbackCompleted.Task;
+                return (true, string.Empty);
+            } catch (Exception exception){
+                return (false, exception.Message);
+            } finally{
+                DisposeWindowsPlayback();
+                _isPlaying = false;
+            }
+        }
+
+        try{
+            _isPlaying = true;
+            await _player.Play(path);
+            return (true, string.Empty);
+        } catch (Exception exception){
+            return (false, exception.Message);
+        } finally{
+            _isPlaying = false;
+        }
+    }
+
+    public async Task PlayAsync(string path){
+        var fileValidation = ValidateSoundFile(path);
+        if (!fileValidation.IsValid){
+            Console.Error.WriteLine($"Failed to play audio '{path}': {fileValidation.ErrorMessage}");
+            return;
+        }
+
         if (_isPlaying){
             Console.WriteLine("Audio is already playing, ignoring duplicate request.");
             return;
         }
 
+        if (OperatingSystem.IsWindows()){
+            try{
                 _isPlaying = true;
-        await _player.Play(path);
+                DisposeWindowsPlayback();
+
+                _audioFileReader = new AudioFileReader(path);
+                _waveOut = new WaveOutEvent();
+                _playbackCompleted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
+
+                _waveOut.PlaybackStopped += (_, args) => {
+                    if (args.Exception != null){
+                        _playbackCompleted?.TrySetException(args.Exception);
+                    } else{
+                        _playbackCompleted?.TrySetResult();
+                    }
+                };
+
+                _waveOut.Init(_audioFileReader);
+                _waveOut.Play();
+
+                await _playbackCompleted.Task;
+            } catch (Exception exception){
+                Console.Error.WriteLine($"Failed to play audio '{path}': {exception}");
+            } finally{
+                DisposeWindowsPlayback();
                 _isPlaying = false;
             }
+            return;
+        }
 
-    public async void Stop(){
+        try{
-        await _player.Stop();
+            _isPlaying = true;
+            await _player.Play(path);
+        } catch (Exception exception){
+            Console.Error.WriteLine($"Failed to play audio '{path}': {exception.Message}");
+        } finally{
             _isPlaying = false;
         }
+    }
+
+    public async Task StopAsync(){
+        if (OperatingSystem.IsWindows()){
+            try{
+                _waveOut?.Stop();
+            } catch (Exception exception){
+                Console.Error.WriteLine($"Failed to stop audio playback: {exception}");
+            } finally{
+                DisposeWindowsPlayback();
+                _isPlaying = false;
+            }
+            return;
+        }
+
+        try{
+            await _player.Stop();
+        } catch (Exception exception){
+            Console.Error.WriteLine($"Failed to stop audio playback: {exception}");
+        } finally{
+            _isPlaying = false;
+        }
+    }
+
+    private void DisposeWindowsPlayback(){
+        _playbackCompleted = null;
+
+        _waveOut?.Dispose();
+        _waveOut = null;
+
+        _audioFileReader?.Dispose();
+        _audioFileReader = null;
+    }
 }

CRD/Utils/DRM/Widevine.cs

@@ -13,7 +13,7 @@ public class Widevine{
     private byte[] privateKey = new byte[0];
     private byte[] identifierBlob = new byte[0];
 
-    public bool canDecrypt = false;
+    public bool canDecrypt;
 
 
     #region Singelton
@@ -114,7 +114,7 @@ public class Widevine{
 
             // var response = await HttpClientReq.Instance.SendHttpRequest(playbackRequest2);
 
-            var response = (IsOk: false, ResponseContent: "", error: "");
+            var response = (IsOk: false, ResponseContent: "", error: "",Headers: new Dictionary<string, string>());
             for (var attempt = 0; attempt < 3 + 1; attempt++){
                 using (var request = Helpers.CloneHttpRequestMessage(playbackRequest2)){
                     response = await HttpClientReq.Instance.SendHttpRequest(request);

CRD/Utils/Enums/EnumCollection.cs

@@ -44,6 +44,8 @@ public enum SeriesType{
     Artist,
     [EnumMember(Value = "Series")]
     Series,
+    [EnumMember(Value = "Movie")]
+    Movie,
     [EnumMember(Value = "Unknown")]
     Unknown
 }
@@ -276,6 +278,15 @@ public enum EpisodeDownloadMode{
     OnlySubs,
 }
 
+public enum DownloadState{
+    Queued,
+    Downloading,
+    Paused,
+    Processing,
+    Done,
+    Error
+}
+
 public enum HistoryRefreshMode{
     DefaultAll = 0,
     DefaultActive = 1,

CRD/Utils/Files/CfgManager.cs

@@ -21,6 +21,7 @@ public class CfgManager{
     public static readonly string PathCrDownloadOptions = Path.Combine(workingDirectory, "config", "settings.json");
 
     public static readonly string PathCrHistory = Path.Combine(workingDirectory, "config", "history.json");
+    public static readonly string PathCrQueue = Path.Combine(workingDirectory, "config", "queue.json");
     public static readonly string PathWindowSettings = Path.Combine(workingDirectory, "config", "windowSettings.json");
 
     private static readonly string ExecutableExtension = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? ".exe" : string.Empty;
@@ -44,7 +45,7 @@ public class CfgManager{
     public static readonly string PathLogFile = Path.Combine(workingDirectory, "logfile.txt");
 
     private static StreamWriter logFile;
-    private static bool isLogModeEnabled = false;
+    private static bool isLogModeEnabled;
 
     static CfgManager(){
         AppDomain.CurrentDomain.ProcessExit += OnProcessExit;
@@ -366,4 +367,14 @@ public class CfgManager{
             return null;
         }
     }
+
+    public static void DeleteFileIfExists(string pathToFile){
+        try{
+            if (File.Exists(pathToFile)){
+                File.Delete(pathToFile);
+            }
+        } catch (Exception ex){
+            Console.Error.WriteLine($"An error occurred while deleting the file {pathToFile}: {ex.Message}");
+        }
+    }
 }

CRD/Utils/HLS/HLSDownloader.cs

@@ -17,6 +17,7 @@ using Newtonsoft.Json;
 namespace CRD.Utils.HLS;
 
 public class HlsDownloader{
+    private readonly CancellationToken _cancellationToken;
     private Data _data = new();
 
     private CrunchyEpMeta _currentEpMeta;
@@ -24,12 +25,24 @@ public class HlsDownloader{
     private bool _isAudio;
     private bool _newDownloadMethode;
 
+    private async Task WaitWhilePausedAsync(CancellationToken cancellationToken){
+        while (_currentEpMeta.DownloadProgress.IsPaused){
+            cancellationToken.ThrowIfCancellationRequested();
+            if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
+                throw new OperationCanceledException(cancellationToken);
+            }
+
+            await Task.Delay(500, cancellationToken);
+        }
+    }
+
     public HlsDownloader(HlsOptions options, CrunchyEpMeta meta, bool isVideo, bool isAudio, bool newDownloadMethode){
         if (options == null || options.M3U8Json == null || options.M3U8Json.Segments == null){
             throw new Exception("Playlist is empty");
         }
 
         _currentEpMeta = meta;
+        _cancellationToken = meta.Cts.Token;
 
         _isVideo = isVideo;
         _isAudio = isAudio;
@@ -62,6 +75,7 @@ public class HlsDownloader{
 
 
     public async Task<(bool Ok, PartsData Parts)> Download(){
+        _cancellationToken.ThrowIfCancellationRequested();
         string fn = _data.OutputFile ?? string.Empty;
 
         if (File.Exists(fn) && File.Exists($"{fn}.resume") && _data.Offset < 1){
@@ -141,8 +155,8 @@ public class HlsDownloader{
 
                 try{
                     var initDl = await DownloadPart(initSeg, 0, 0);
-                    await File.WriteAllBytesAsync(fn, initDl);
+                    await File.WriteAllBytesAsync(fn, initDl, _cancellationToken);
-                    await File.WriteAllTextAsync($"{fn}.resume", JsonConvert.SerializeObject(new{ completed = 0, total = segments.Count }));
+                    await File.WriteAllTextAsync($"{fn}.resume", JsonConvert.SerializeObject(new{ completed = 0, total = segments.Count }), _cancellationToken);
                     Console.WriteLine("Init part downloaded.");
                 } catch (Exception e){
                     Console.Error.WriteLine($"Part init download error:\n\t{e.Message}");
@@ -185,7 +199,7 @@ public class HlsDownloader{
                 }
 
                 try{
-                    await Task.WhenAll(keyTasks.Values);
+                    await Task.WhenAll(keyTasks.Values).WaitAsync(_cancellationToken);
                 } catch (Exception ex){
                     Console.Error.WriteLine($"Error downloading keys: {ex.Message}");
                     throw;
@@ -200,7 +214,7 @@ public class HlsDownloader{
                 }
 
                 while (partTasks.Count > 0){
-                    Task<byte[]> completedTask = await Task.WhenAny(partTasks.Values);
+                    Task<byte[]> completedTask = await Task.WhenAny(partTasks.Values).WaitAsync(_cancellationToken);
                     int completedIndex = -1;
                     foreach (var task in partTasks){
                         if (task.Value == completedTask){
@@ -234,7 +248,7 @@ public class HlsDownloader{
                     while (attempt < 3 && !writeSuccess){
                         try{
                             using (var stream = new FileStream(fn, FileMode.Append, FileAccess.Write, FileShare.None)){
-                                await stream.WriteAsync(part, 0, part.Length);
+                                await stream.WriteAsync(part, 0, part.Length, _cancellationToken);
                             }
 
                             writeSuccess = true;
@@ -242,7 +256,7 @@ public class HlsDownloader{
                             Console.Error.WriteLine(ex);
                             Console.Error.WriteLine($"Unable to write to file '{fn}' (Attempt {attempt + 1}/3)");
                             Console.WriteLine($"Waiting {Math.Round(_data.WaitTime / 1000.0)}s before retrying");
-                            await Task.Delay(_data.WaitTime);
+                            await Task.Delay(_data.WaitTime, _cancellationToken);
                             attempt++;
                         }
                     }
@@ -268,11 +282,16 @@ public class HlsDownloader{
                     ? $"{dataLog.DownloadSpeedBytes * 8 / 1000000.0:F2} Mb/s"
                     : $"{dataLog.DownloadSpeedBytes / 1000000.0:F2} MB/s";
 
+                await WaitWhilePausedAsync(_cancellationToken);
+                if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
+                    return (Ok: false, _data.Parts);
+                }
+
                 // Log progress
                 Console.WriteLine($"{_data.Parts.Completed} of {totalSeg} parts downloaded [{dataLog.Percent}%] ({FormatTime(dataLog.Time)} | {downloadSpeed})");
 
                 _currentEpMeta.DownloadProgress = new DownloadProgress(){
-                    IsDownloading = true,
+                    State = DownloadState.Downloading,
                     Percent = dataLog.Percent,
                     Time = dataLog.Time,
                     DownloadSpeedBytes = dataLog.DownloadSpeedBytes,
@@ -280,7 +299,7 @@ public class HlsDownloader{
                 };
 
                 if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
-                    if (!_currentEpMeta.DownloadProgress.Done){
+                    if (!_currentEpMeta.DownloadProgress.IsDone){
                         foreach (var downloadItemDownloadedFile in _currentEpMeta.downloadedFiles){
                             try{
                                 if (File.Exists(downloadItemDownloadedFile)){
@@ -295,26 +314,124 @@ public class HlsDownloader{
                     return (Ok: false, _data.Parts);
                 }
 
-                QueueManager.Instance.Queue.Refresh();
+                QueueManager.Instance.RefreshQueue();
 
-                while (_currentEpMeta.Paused){
+                await WaitWhilePausedAsync(_cancellationToken);
-                    await Task.Delay(500);
                 if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
                     return (Ok: false, _data.Parts);
                 }
             }
         }
-        }
 
         return (Ok: true, _data.Parts);
     }
 
     private static readonly object _resumeLock = new object();
 
+    private void CleanupDownloadedFiles(){
+        if (_currentEpMeta.DownloadProgress.IsDone){
+            return;
+        }
+
+        foreach (var file in _currentEpMeta.downloadedFiles){
+            try{
+                if (File.Exists(file)){
+                    File.Delete(file);
+                }
+            } catch (Exception ex){
+                Console.Error.WriteLine($"Failed to delete file '{file}': {ex.Message}");
+            }
+        }
+    }
+
+    private async Task DownloadBufferedSegmentAsync(int index, List<dynamic> segments, string tempDir, string resumeFile, int totalSeg, int mergedParts, SemaphoreSlim semaphore,
+        CancellationTokenSource cancellationSource, CancellationToken token, Action markError, Func<long> getLastUiUpdate, Action<long> setLastUiUpdate){
+        try{
+            token.ThrowIfCancellationRequested();
+            await WaitWhilePausedAsync(token);
+            if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
+                cancellationSource.Cancel();
+                return;
+            }
+
+            var segment = new Segment{
+                Uri = ObjectUtilities.GetMemberValue(segments[index], "uri"),
+                Key = ObjectUtilities.GetMemberValue(segments[index], "key"),
+                ByteRange = ObjectUtilities.GetMemberValue(segments[index], "byteRange")
+            };
+
+            var data = await DownloadPart(segment, index, _data.Offset);
+
+            string tempFile = Path.Combine(tempDir, $"part_{index:D6}.tmp");
+            await File.WriteAllBytesAsync(tempFile, data, token);
+
+            int currentDownloaded = Directory.GetFiles(tempDir, "part_*.tmp").Length;
+            lock (_resumeLock){
+                File.WriteAllText(resumeFile, JsonConvert.SerializeObject(new{
+                    DownloadedParts = currentDownloaded,
+                    MergedParts = mergedParts,
+                    Total = totalSeg
+                }));
+            }
+
+            long lastUiUpdate = getLastUiUpdate();
+            if (DateTimeOffset.Now.ToUnixTimeMilliseconds() - lastUiUpdate > 500){
+                var dataLog = GetDownloadInfo(
+                    lastUiUpdate,
+                    currentDownloaded,
+                    totalSeg,
+                    _data.BytesDownloaded,
+                    _data.TotalBytes
+                );
+
+                _data.BytesDownloaded = 0;
+                setLastUiUpdate(DateTimeOffset.Now.ToUnixTimeMilliseconds());
+
+                var downloadSpeed = CrunchyrollManager.Instance.CrunOptions.DownloadSpeedInBits
+                    ? $"{dataLog.DownloadSpeedBytes * 8 / 1000000.0:F2} Mb/s"
+                    : $"{dataLog.DownloadSpeedBytes / 1000000.0:F2} MB/s";
+
+                await WaitWhilePausedAsync(token);
+                if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
+                    cancellationSource.Cancel();
+                    return;
+                }
+
+                Console.WriteLine($"{currentDownloaded}/{totalSeg} [{dataLog.Percent}%] Speed: {downloadSpeed} ETA: {FormatTime(dataLog.Time)}");
+
+                _currentEpMeta.DownloadProgress = new DownloadProgress{
+                    State = DownloadState.Downloading,
+                    Percent = dataLog.Percent,
+                    Time = dataLog.Time,
+                    DownloadSpeedBytes = dataLog.DownloadSpeedBytes,
+                    Doing = _isAudio ? "Downloading Audio" : (_isVideo ? "Downloading Video" : "")
+                };
+            }
+
+            if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
+                cancellationSource.Cancel();
+                return;
+            }
+
+            QueueManager.Instance.RefreshQueue();
+
+            await WaitWhilePausedAsync(token);
+            if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
+                cancellationSource.Cancel();
+            }
+        } catch (Exception ex){
+            Console.Error.WriteLine($"Error downloading part {index}: {ex.Message}");
+            markError();
+            cancellationSource.Cancel();
+        } finally{
+            semaphore.Release();
+        }
+    }
+
     public async Task<(bool Ok, PartsData Parts)> DownloadSegmentsBufferedResumeAsync(List<dynamic> segments, string fn){
         var totalSeg = _data.Parts.Total;
         string sessionId = Path.GetFileNameWithoutExtension(fn);
-        string tempDir = Path.Combine(Path.GetDirectoryName(fn), $"{sessionId}_temp");
+        string tempDir = Path.Combine(Path.GetDirectoryName(fn) ?? string.Empty, $"{sessionId}_temp");
 
         Directory.CreateDirectory(tempDir);
 
@@ -328,6 +445,7 @@ public class HlsDownloader{
                 downloadedParts = (int?)resumeData?.DownloadedParts ?? 0;
                 mergedParts = (int?)resumeData?.MergedParts ?? 0;
             } catch{
+                // ignored
             }
         }
 
@@ -336,13 +454,18 @@ public class HlsDownloader{
 
         var semaphore = new SemaphoreSlim(_data.Threads);
         var downloadTasks = new List<Task>();
-        bool errorOccurred = false;
+        int errorOccurred = 0;
 
         var _lastUiUpdate = DateTimeOffset.Now.ToUnixTimeMilliseconds();
 
-        var cts = new CancellationTokenSource();
+        var cts = CancellationTokenSource.CreateLinkedTokenSource(_cancellationToken);
         var token = cts.Token;
 
+        void CleanupBufferedArtifacts(bool cleanAll = true){
+            CleanupNewDownloadMethod(tempDir, resumeFile, cleanAll);
+        }
+
+        try{
             for (int i = 0; i < segments.Count; i++){
                 try{
                     await semaphore.WaitAsync(token);
@@ -358,111 +481,49 @@ public class HlsDownloader{
                 int index = i;
 
 
-            downloadTasks.Add(Task.Run(async () => {
+                downloadTasks.Add(DownloadBufferedSegmentAsync(index, segments, tempDir, resumeFile, totalSeg, mergedParts, semaphore, cts, token,
-                try{
+                    () => Interlocked.Exchange(ref errorOccurred, 1),
-                    token.ThrowIfCancellationRequested();
+                    () => Volatile.Read(ref _lastUiUpdate),
-                    var segment = new Segment{
+                    value => Interlocked.Exchange(ref _lastUiUpdate, value)));
-                        Uri = ObjectUtilities.GetMemberValue(segments[index], "uri"),
-                        Key = ObjectUtilities.GetMemberValue(segments[index], "key"),
-                        ByteRange = ObjectUtilities.GetMemberValue(segments[index], "byteRange")
-                    };
-
-                    var data = await DownloadPart(segment, index, _data.Offset);
-
-                    string tempFile = Path.Combine(tempDir, $"part_{index:D6}.tmp");
-                    await File.WriteAllBytesAsync(tempFile, data);
-
-                    int currentDownloaded = Directory.GetFiles(tempDir, "part_*.tmp").Length;
-                    lock (_resumeLock){
-                        File.WriteAllText(resumeFile, JsonConvert.SerializeObject(new{
-                            DownloadedParts = currentDownloaded,
-                            MergedParts = mergedParts,
-                            Total = totalSeg
-                        }));
-                    }
-
-                    if (DateTimeOffset.Now.ToUnixTimeMilliseconds() - _lastUiUpdate > 500){
-                        var dataLog = GetDownloadInfo(
-                            _lastUiUpdate,
-                            currentDownloaded,
-                            totalSeg,
-                            _data.BytesDownloaded,
-                            _data.TotalBytes
-                        );
-
-                        _data.BytesDownloaded = 0;
-                        _lastUiUpdate = DateTimeOffset.Now.ToUnixTimeMilliseconds();
-
-                        var downloadSpeed = CrunchyrollManager.Instance.CrunOptions.DownloadSpeedInBits
-                            ? $"{dataLog.DownloadSpeedBytes * 8 / 1000000.0:F2} Mb/s"
-                            : $"{dataLog.DownloadSpeedBytes / 1000000.0:F2} MB/s";
-                        
-                        Console.WriteLine($"{currentDownloaded}/{totalSeg} [{dataLog.Percent}%] Speed: {downloadSpeed} ETA: {FormatTime(dataLog.Time)}");
-
-                        _currentEpMeta.DownloadProgress = new DownloadProgress{
-                            IsDownloading = true,
-                            Percent = dataLog.Percent,
-                            Time = dataLog.Time,
-                            DownloadSpeedBytes = dataLog.DownloadSpeedBytes,
-                            Doing = _isAudio ? "Downloading Audio" : (_isVideo ? "Downloading Video" : "")
-                        };
-                    }
-
-                    if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
-                        cts.Cancel();
-                        return;
-                    }
-
-
-                    QueueManager.Instance.Queue.Refresh();
-
-                    while (_currentEpMeta.Paused){
-                        await Task.Delay(500);
-                        if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
-                            cts.Cancel();
-                            return;
-                        }
-                    }
-                } catch (Exception ex){
-                    Console.Error.WriteLine($"Error downloading part {index}: {ex.Message}");
-                    errorOccurred = true;
-                    cts.Cancel();
-                } finally{
-                    semaphore.Release();
-                }
-            }, token));
             }
 
             try{
                 await Task.WhenAll(downloadTasks);
             } catch (OperationCanceledException){
                 if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
-                if (!_currentEpMeta.DownloadProgress.Done){
+                    CleanupBufferedArtifacts();
-                    CleanupNewDownloadMethod(tempDir, resumeFile, true);
-                }
                 } else{
                     Console.Error.WriteLine("Download cancelled due to error.");
+                    CleanupBufferedArtifacts(false);
                 }
 
                 return (false, _data.Parts);
             }
+        } finally{
+            cts.Dispose();
+        }
 
-        if (errorOccurred)
+        if (Volatile.Read(ref errorOccurred) == 1){
+            CleanupBufferedArtifacts(false);
             return (false, _data.Parts);
+        }
 
         using (var output = new FileStream(fn, FileMode.Append, FileAccess.Write, FileShare.None)){
             for (int i = mergedParts; i < segments.Count; i++){
-                if (token.IsCancellationRequested)
+                if (token.IsCancellationRequested){
+                    CleanupBufferedArtifacts();
                     return (false, _data.Parts);
+                }
 
                 string tempFile = Path.Combine(tempDir, $"part_{i:D6}.tmp");
                 if (!File.Exists(tempFile)){
                     Console.Error.WriteLine($"Missing temp file for part {i}, aborting merge.");
+                    CleanupBufferedArtifacts(false);
                     return (false, _data.Parts);
                 }
 
-                byte[] data = await File.ReadAllBytesAsync(tempFile);
+                byte[] data = await File.ReadAllBytesAsync(tempFile, token);
-                await output.WriteAsync(data, 0, data.Length);
+                await output.WriteAsync(data, 0, data.Length, token);
 
                 mergedParts++;
 
@@ -475,21 +536,24 @@ public class HlsDownloader{
                 var dataLog = GetDownloadInfo(_data.DateStart, mergedParts, totalSeg, _data.BytesDownloaded, _data.TotalBytes);
                 Console.WriteLine($"{mergedParts}/{totalSeg} parts merged [{dataLog.Percent}%]");
 
+                await WaitWhilePausedAsync(token);
+                if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
+                    CleanupBufferedArtifacts();
+                    return (false, _data.Parts);
+                }
+
                 _currentEpMeta.DownloadProgress = new DownloadProgress{
-                    IsDownloading = true,
+                    State = DownloadState.Processing,
                     Percent = dataLog.Percent,
                     Time = dataLog.Time,
                     DownloadSpeedBytes = dataLog.DownloadSpeedBytes,
                     Doing = _isAudio ? "Merging Audio" : (_isVideo ? "Merging Video" : "")
                 };
 
-                QueueManager.Instance.Queue.Refresh();
+                QueueManager.Instance.RefreshQueue();
 
                 if (!QueueManager.Instance.Queue.Contains(_currentEpMeta)){
-                    if (!_currentEpMeta.DownloadProgress.Done){
+                    CleanupBufferedArtifacts();
-                        CleanupNewDownloadMethod(tempDir, resumeFile, true);
-                    }
-
                     return (false, _data.Parts);
                 }
             }
@@ -503,14 +567,7 @@ public class HlsDownloader{
 
     private void CleanupNewDownloadMethod(string tempDir, string resumeFile, bool cleanAll = false){
         if (cleanAll){
-            // Delete downloaded files
+            CleanupDownloadedFiles();
-            foreach (var file in _currentEpMeta.downloadedFiles){
-                try{
-                    File.Delete(file); // Safe: File.Delete does nothing if file doesn't exist
-                } catch (Exception ex){
-                    Console.Error.WriteLine($"Failed to delete file '{file}': {ex.Message}");
-                }
-            }
         }
 
         // Delete temp directory
@@ -565,6 +622,7 @@ public class HlsDownloader{
     }
 
     public async Task<byte[]> DownloadPart(Segment seg, int segIndex, int segOffset){
+        _cancellationToken.ThrowIfCancellationRequested();
         string sUri = GetUri(seg.Uri ?? "", _data.BaseUrl);
         byte[]? dec = null;
         int p = segIndex;
@@ -572,7 +630,7 @@ public class HlsDownloader{
             byte[]? part;
             if (seg.Key != null){
                 var decipher = await GetKey(seg.Key, p, segOffset);
-                part = await GetData(p, sUri, seg.ByteRange, segOffset, false, _data.Timeout, _data.Retries);
+                part = await GetData(p, sUri, seg.ByteRange, segOffset, false, _data.Timeout, _data.Retries, _cancellationToken);
                 var partContent = part;
                 using (decipher){
                     if (partContent != null) dec = decipher.TransformFinalBlock(partContent, 0, partContent.Length);
@@ -583,7 +641,7 @@ public class HlsDownloader{
                     Interlocked.Add(ref _data.TotalBytes, dec.Length);
                 }
             } else{
-                part = await GetData(p, sUri, seg.ByteRange, segOffset, false, _data.Timeout, _data.Retries);
+                part = await GetData(p, sUri, seg.ByteRange, segOffset, false, _data.Timeout, _data.Retries, _cancellationToken);
                 dec = part;
                 if (dec != null){
                     Interlocked.Add(ref _data.BytesDownloaded, dec.Length);
@@ -646,7 +704,7 @@ public class HlsDownloader{
         string kUri = GetUri(key.Uri ?? "", _data.BaseUrl);
         if (!_data.Keys.ContainsKey(kUri)){
             try{
-                var rkey = await GetData(segIndex, kUri, null, segOffset, true, _data.Timeout, _data.Retries);
+                var rkey = await GetData(segIndex, kUri, null, segOffset, true, _data.Timeout, _data.Retries, _cancellationToken);
                 if (rkey == null || rkey.Length != 16){
                     throw new Exception("Key not fully downloaded or is incorrect.");
                 }
@@ -662,7 +720,8 @@ public class HlsDownloader{
         return _data.Keys[kUri];
     }
 
-    public async Task<byte[]?> GetData(int partIndex, string uri, ByteRange? byteRange, int segOffset, bool isKey, int timeout, int retryCount){
+    public async Task<byte[]?> GetData(int partIndex, string uri, ByteRange? byteRange, int segOffset, bool isKey, int timeout, int retryCount, CancellationToken cancellationToken){
+        cancellationToken.ThrowIfCancellationRequested();
         // Handle local file URI
         if (uri.StartsWith("file://")){
             string path = new Uri(uri).LocalPath;
@@ -680,17 +739,18 @@ public class HlsDownloader{
             request.Headers.Add("User-Agent", ApiUrls.FirefoxUserAgent);
         }
 
-        return await SendRequestWithRetry(request, partIndex, segOffset, isKey, retryCount);
+        return await SendRequestWithRetry(request, partIndex, segOffset, isKey, retryCount, cancellationToken);
     }
 
-    private async Task<byte[]?> SendRequestWithRetry(HttpRequestMessage requestPara, int partIndex, int segOffset, bool isKey, int retryCount){
+    private async Task<byte[]?> SendRequestWithRetry(HttpRequestMessage requestPara, int partIndex, int segOffset, bool isKey, int retryCount, CancellationToken cancellationToken){
         HttpResponseMessage response;
         for (int attempt = 0; attempt < retryCount + 1; attempt++){
+            cancellationToken.ThrowIfCancellationRequested();
             using (var request = CloneHttpRequestMessage(requestPara)){
                 try{
-                    response = await HttpClientReq.Instance.GetHttpClient().SendAsync(request, HttpCompletionOption.ResponseHeadersRead);
+                    response = await HttpClientReq.Instance.GetHttpClient().SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
                     response.EnsureSuccessStatusCode();
-                    return await ReadContentAsByteArrayAsync(response.Content);
+                    return await ReadContentAsByteArrayAsync(response.Content, cancellationToken);
                 } catch (Exception ex) when (ex is HttpRequestException or IOException){
                     // Log retry attempts
                     string partType = isKey ? "Key" : "Part";
@@ -700,7 +760,7 @@ public class HlsDownloader{
                     if (attempt == retryCount)
                         throw; // rethrow after last retry
 
-                    await Task.Delay(_data.WaitTime);
+                    await Task.Delay(_data.WaitTime, cancellationToken);
                 } catch (Exception ex){
                     Console.Error.WriteLine($"Unexpected exception at part {partIndex + 1 + segOffset}:");
                     Console.Error.WriteLine($"\tType: {ex.GetType()}");
@@ -713,14 +773,14 @@ public class HlsDownloader{
         return null; // Should not reach here
     }
 
-    private async Task<byte[]> ReadContentAsByteArrayAsync(HttpContent content){
+    private async Task<byte[]> ReadContentAsByteArrayAsync(HttpContent content, CancellationToken cancellationToken){
         using (var memoryStream = new MemoryStream())
-        using (var contentStream = await content.ReadAsStreamAsync())
+        using (var contentStream = await content.ReadAsStreamAsync(cancellationToken))
         using (var throttledStream = new ThrottledStream(contentStream)){
             byte[] buffer = new byte[8192];
             int bytesRead;
-            while ((bytesRead = await throttledStream.ReadAsync(buffer, 0, buffer.Length)) > 0){
+            while ((bytesRead = await throttledStream.ReadAsync(buffer.AsMemory(0, buffer.Length), cancellationToken)) > 0){
-                await memoryStream.WriteAsync(buffer, 0, bytesRead);
+                await memoryStream.WriteAsync(buffer.AsMemory(0, bytesRead), cancellationToken);
             }
 
             return memoryStream.ToArray();
@@ -757,7 +817,7 @@ public class HlsDownloader{
 }
 
 public static class HttpContentExtensions{
-    public static HttpContent Clone(this HttpContent content){
+    public static HttpContent? Clone(this HttpContent? content){
         if (content == null) return null;
         var memStream = new MemoryStream();
         content.CopyToAsync(memStream).Wait();

CRD/Utils/Helpers.cs

@@ -24,14 +24,40 @@ using CRD.Utils.Http;
 using CRD.Utils.JsonConv;
 using CRD.Utils.Parser;
 using CRD.Utils.Structs;
+using CRD.Utils.Structs.Crunchyroll;
 using FluentAvalonia.UI.Controls;
 using Microsoft.Win32;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Serialization;
+using NuGet.Versioning;
 
 namespace CRD.Utils;
 
 public class Helpers{
+    private static readonly Regex ClientVersionRegex = new(@"(?:ANDROIDTV|Crunchyroll)/(?<version>[0-9]+(?:[._][0-9]+)*)", RegexOptions.Compiled);
+
+    public static string? ExtractClientVersion(string? userAgent){
+        if (string.IsNullOrWhiteSpace(userAgent)){
+            return null;
+        }
+
+        var match = ClientVersionRegex.Match(userAgent);
+        return match.Success ? match.Groups["version"].Value : null;
+    }
+
+    public static int CompareClientVersions(string? left, string? right){
+        var leftVersion = ParseClientVersion(left);
+        var rightVersion = ParseClientVersion(right);
+
+        return VersionComparer.Version.Compare(leftVersion, rightVersion);
+    }
+
+    private static NuGetVersion ParseClientVersion(string? version){
+        return NuGetVersion.TryParse(version?.Replace('_', '.') ?? "", out var nuGetVersion)
+            ? nuGetVersion
+            : NuGetVersion.Parse("0.0.0");
+    }
+
     public static T? Deserialize<T>(string json, JsonSerializerSettings? serializerSettings){
         try{
             serializerSettings ??= new JsonSerializerSettings();
@@ -62,6 +88,19 @@ public class Helpers{
         return clone;
     }
 
+    public static int GetRetryDelaySeconds(CrDownloadOptions options, int retryAttemptCount){
+        return GetRetryDelaySeconds(options.PlaybackRateLimitRetryDelaySeconds, options.RetryMaxDelaySeconds, retryAttemptCount);
+    }
+
+    public static int GetRetryDelaySeconds(int baseDelaySeconds, int maxDelaySeconds, int retryAttemptCount){
+        int baseDelay = Math.Max(1, baseDelaySeconds);
+        int maxDelay = Math.Max(baseDelay, maxDelaySeconds);
+
+        int attempt = Math.Max(0, retryAttemptCount);
+        double delay = baseDelay * Math.Pow(2, attempt);
+        return (int)Math.Min(maxDelay, delay);
+    }
+
     public static T? DeepCopy<T>(T obj){
         var settings = new JsonSerializerSettings{
             ContractResolver = new DefaultContractResolver{
@@ -193,7 +232,7 @@ public class Helpers{
         }
     }
     
-    public static async Task<(bool IsOk, int ErrorCode)> ExecuteCommandAsync(string bin, string command){
+    public static async Task<(bool IsOk, int ErrorCode)> ExecuteCommandAsync(string bin, string command, CancellationToken cancellationToken = default){
         try{
             using (var process = new Process()){
                 process.StartInfo.FileName = bin;
@@ -224,7 +263,17 @@ public class Helpers{
                 process.BeginOutputReadLine();
                 process.BeginErrorReadLine();
 
-                await process.WaitForExitAsync();
+                await using var registration = cancellationToken.Register(() => {
+                    try{
+                        if (!process.HasExited){
+                            process.Kill(true);
+                        }
+                    } catch{
+                        // ignored
+                    }
+                });
+
+                await process.WaitForExitAsync(cancellationToken);
 
                 bool isSuccess = process.ExitCode == 0;
 
@@ -236,69 +285,162 @@ public class Helpers{
         }
     }
 
-    public static void DeleteFile(string filePath){
+    public static bool DeleteFile(string filePath, int maxRetries = 5, int delayMs = 150){
         if (string.IsNullOrEmpty(filePath)){
-            return;
+            return false;
         }
 
+        for (int attempt = 0; attempt < maxRetries; attempt++){
             try{
-            if (File.Exists(filePath)){
+                if (!File.Exists(filePath)){
-                File.Delete(filePath);
+                    return true;
                 }
+
+                File.Delete(filePath);
+                return true;
+            } catch (Exception ex) when (attempt < maxRetries - 1 && (ex is IOException || ex is UnauthorizedAccessException)){
+                Thread.Sleep(delayMs * (attempt + 1));
             } catch (Exception ex){
                 Console.Error.WriteLine($"Failed to delete file {filePath}. Error: {ex.Message}");
+                return false;
             }
         }
 
+        Console.Error.WriteLine($"Failed to delete file {filePath}. Error: file remained locked after {maxRetries} attempts.");
+        return false;
+    }
+
+    public static string GetAvailableDestinationPath(string destinationPath){
+        if (!File.Exists(destinationPath)){
+            return destinationPath;
+        }
+
+        var directory = Path.GetDirectoryName(destinationPath) ?? string.Empty;
+        var fileNameWithoutExtension = Path.GetFileNameWithoutExtension(destinationPath);
+        var extension = Path.GetExtension(destinationPath);
+        var counter = 1;
+
+        string candidatePath;
+        do{
+            candidatePath = Path.Combine(directory, $"{fileNameWithoutExtension}({counter}){extension}");
+            counter++;
+        } while (File.Exists(candidatePath));
+
+        return candidatePath;
+    }
+
     public static async Task<(bool IsOk, int ErrorCode)> ExecuteCommandAsyncWorkDir(string type, string bin, string command, string workingDir){
-        try{
+        Process? process = null;
-            using (var process = new Process()){
+        DataReceivedEventHandler? outputHandler = null;
-                process.StartInfo.WorkingDirectory = workingDir;
+        DataReceivedEventHandler? errorHandler = null;
-                process.StartInfo.FileName = bin;
-                process.StartInfo.Arguments = command;
-                process.StartInfo.RedirectStandardOutput = true;
-                process.StartInfo.RedirectStandardError = true;
-                process.StartInfo.UseShellExecute = false;
-                process.StartInfo.CreateNoWindow = true;
 
-                process.OutputDataReceived += (sender, e) => {
+        try{
+            process = new Process{
+                StartInfo = new ProcessStartInfo{
+                    WorkingDirectory = workingDir,
+                    FileName = bin,
+                    Arguments = command,
+                    RedirectStandardOutput = true,
+                    RedirectStandardError = true,
+                    UseShellExecute = false,
+                    CreateNoWindow = true
+                },
+                EnableRaisingEvents = true
+            };
+
+            outputHandler = (_, e) => {
                 if (!string.IsNullOrEmpty(e.Data)){
                     Console.WriteLine(e.Data);
                 }
             };
 
-                process.ErrorDataReceived += (sender, e) => {
+            errorHandler = (_, e) => {
                 if (!string.IsNullOrEmpty(e.Data)){
-                        Console.Error.WriteLine($"{e.Data}");
+                    Console.Error.WriteLine(e.Data);
                 }
             };
 
+            process.OutputDataReceived += outputHandler;
+            process.ErrorDataReceived += errorHandler;
+
             process.Start();
 
             process.BeginOutputReadLine();
             process.BeginErrorReadLine();
 
             await process.WaitForExitAsync();
+            process.WaitForExit();
 
-                bool isSuccess = process.ExitCode == 0;
+            return (IsOk: process.ExitCode == 0, ErrorCode: process.ExitCode);
-
-                return (IsOk: isSuccess, ErrorCode: process.ExitCode);
-            }
         } catch (Exception ex){
             Console.Error.WriteLine($"An error occurred: {ex.Message}");
             return (IsOk: false, ErrorCode: -1);
+        } finally{
+            if (process != null){
+                if (outputHandler != null){
+                    process.OutputDataReceived -= outputHandler;
+                }
+
+                if (errorHandler != null){
+                    process.ErrorDataReceived -= errorHandler;
+                }
+
+                process.Dispose();
+            }
         }
     }
 
-    private static IEnumerable<string> GetQualityOption(VideoPreset preset){
+    public static IEnumerable<string> GetQualityOption(VideoPreset preset){
+        if (preset.Crf is -1)
+            return [];
+
+        var q = preset.Crf.ToString();
+
         return preset.Codec switch{
-            "h264_nvenc" or "hevc_nvenc" =>["-cq", preset.Crf.ToString()],
+            "h264_nvenc" or "hevc_nvenc"
-            "h264_qsv" or "hevc_qsv" =>["-global_quality", preset.Crf.ToString()],
+                => preset.Crf is >= 0 and <= 51 ? ["-cq", q] : [],
-            "h264_amf" or "hevc_amf" =>["-qp", preset.Crf.ToString()],
+
-            _ =>["-crf", preset.Crf.ToString()]
+            "h264_qsv" or "hevc_qsv"
+                => preset.Crf is >= 1 and <= 51 ? ["-global_quality", q] : [],
+
+            "h264_amf"
+                => preset.Crf is >= 0 and <= 51 ? ["-rc", "cqp", "-qp_i", q, "-qp_p", q, "-qp_b", q] : [],
+
+            "hevc_amf"
+                => preset.Crf is >= 0 and <= 51 ? ["-rc", "cqp", "-qp_i", q, "-qp_p", q] : [],
+
+            _ // libx264/libx265/etc.
+                => preset.Crf >= 0 ? ["-crf", q] : []
         };
     }
 
+    public static List<string> BuildFFmpegArgsForPreset(string inputFilePath, VideoPreset preset, string outputFilePath){
+        var args = new List<string>{
+            "-nostdin",
+            "-hide_banner",
+            "-loglevel", "error",
+            "-i", inputFilePath,
+        };
+
+        if (!string.IsNullOrWhiteSpace(preset.Codec)){
+            args.Add("-c:v");
+            args.Add(preset.Codec);
+
+            args.AddRange(GetQualityOption(preset));
+
+            args.Add("-vf");
+            args.Add($"scale={preset.Resolution},fps={preset.FrameRate}");
+        }
+
+        foreach (var param in preset.AdditionalParameters){
+            args.AddRange(SplitArguments(param));
+        }
+
+        args.Add(outputFilePath);
+
+        return args;
+    }
+
     public static async Task<(bool IsOk, int ErrorCode)> RunFFmpegWithPresetAsync(
         string inputFilePath,
         VideoPreset preset,
@@ -311,29 +453,7 @@ public class Helpers{
             string tempOutput = Path.Combine(dir, $"{name}_output{ext}");
 
             TimeSpan? totalDuration = await GetMediaDurationAsync(CfgManager.PathFFMPEG, inputFilePath);
-
+            var args = BuildFFmpegArgsForPreset(inputFilePath, preset, tempOutput);
-            var args = new List<string>{
-                "-nostdin",
-                "-hide_banner",
-                "-loglevel", "error",
-                "-i", inputFilePath,
-            };
-
-            if (!string.IsNullOrWhiteSpace(preset.Codec)){
-                args.Add("-c:v");
-                args.Add(preset.Codec);
-            }
-
-            args.AddRange(GetQualityOption(preset));
-
-            args.Add("-vf");
-            args.Add($"scale={preset.Resolution},fps={preset.FrameRate}");
-
-            foreach (var param in preset.AdditionalParameters){
-                args.AddRange(SplitArguments(param));
-            }
-
-            args.Add(tempOutput);
 
             string commandString = BuildCommandString(CfgManager.PathFFMPEG, args);
             int exitCode;
@@ -409,7 +529,7 @@ public class Helpers{
         return args;
     }
 
-    private static string BuildCommandString(string exe, IEnumerable<string> args){
+    public static string BuildCommandString(string exe, IEnumerable<string> args){
         static string Quote(string s){
             if (string.IsNullOrWhiteSpace(s))
                 return "\"\"";

CRD/Utils/Http/HttpClientReq.cs

@@ -112,9 +112,10 @@ public class HttpClientReq{
         return handler;
     }
 
-    public async Task<(bool IsOk, string ResponseContent, string error)> SendHttpRequest(HttpRequestMessage request, bool suppressError = false, Dictionary<string, CookieCollection>? cookieStore = null,
+    public async Task<(bool IsOk, string ResponseContent, string error, Dictionary<string, string> Headers)> SendHttpRequest(HttpRequestMessage request, bool suppressError = false, Dictionary<string, CookieCollection>? cookieStore = null,
         bool allowChallengeBypass = true){
         string content = string.Empty;
+        var headers = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
         try{
             if (request.RequestUri?.ToString() != ApiUrls.WidevineLicenceUrl){
                 AttachCookies(request, cookieStore);
@@ -131,7 +132,7 @@ public class HttpClientReq{
                         retryRequest, GetCookiesForRequest(cookieStore));
 
                     if (!solverResult.IsOk){
-                        return (false, solverResult.ResponseContent, "Challenge bypass failed");
+                        return (false, solverResult.ResponseContent, "Challenge bypass failed",headers);
                     }
 
                     // foreach (var cookie in solverResult.Cookies){
@@ -139,30 +140,36 @@ public class HttpClientReq{
                     //     AddCookie(cookie.Domain, cookie, cookieStore);
                     // }
 
-                    return (true, ExtractJsonFromBrowserHtml(solverResult.ResponseContent), "");
+                    return (true, ExtractJsonFromBrowserHtml(solverResult.ResponseContent), "",headers);
                 }
 
-                return (false, content, "Cloudflare challenge detected");
+                return (false, content, "Cloudflare challenge detected",headers);
             }
 
             content = await response.Content.ReadAsStringAsync();
             
+            foreach (var header in response.Headers)
+                headers[header.Key] = string.Join(", ", header.Value);
+
+            foreach (var header in response.Content.Headers)
+                headers[header.Key] = string.Join(", ", header.Value);
+
             response.EnsureSuccessStatusCode();
 
             CaptureResponseCookies(response, request.RequestUri!, cookieStore);
 
-            return (IsOk: true, ResponseContent: content, error: "");
+            return (IsOk: true, ResponseContent: content, error: "",headers);
         } catch (Exception e){
             if (!suppressError){
                 Console.Error.WriteLine($"Error: {e} \n Response: {(content.Length < 500 ? content : "error to long")}");
             }
-            return (IsOk: false, ResponseContent: content, error: "");
+            return (IsOk: false, ResponseContent: content, error: "",headers);
         }
     }
 
 
-    public async Task<(bool IsOk, string ResponseContent, string error)> SendFlareSolverrHttpRequest(HttpRequestMessage request, bool suppressError = false){
+    public async Task<(bool IsOk, string ResponseContent, string error, Dictionary<string, string> Headers)> SendFlareSolverrHttpRequest(HttpRequestMessage request, bool suppressError = false){
-        if (flareSolverrClient == null) return (IsOk: false, ResponseContent: "", error: "No Flare Solverr client has been configured");
+        if (flareSolverrClient == null) return (IsOk: false, ResponseContent: "", error: "No Flare Solverr client has been configured",[]);
         string content = string.Empty;
         try{
             var flareSolverrResponses = await flareSolverrClient.SendViaFlareSolverrAsync(request, []);
@@ -170,13 +177,13 @@ public class HttpClientReq{
 
             content = flareSolverrResponses.ResponseContent;
 
-            return (flareSolverrResponses.IsOk, ResponseContent: content, error: "");
+            return (flareSolverrResponses.IsOk, ResponseContent: content, error: "",[]);
         } catch (Exception e){
             if (!suppressError){
                 Console.Error.WriteLine($"Error: {e} \n Response: {(content.Length < 500 ? content : "error to long")}");
             }
 
-            return (IsOk: false, ResponseContent: content, error: "");
+            return (IsOk: false, ResponseContent: content, error: "",[]);
         }
     }
 

CRD/Utils/Muxing/Fonts/FontsManager.cs

@@ -2,13 +2,13 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Runtime.InteropServices;
 using System.Security.Cryptography;
 using System.Text;
 using System.Text.RegularExpressions;
 using System.Threading;
 using System.Threading.Tasks;
 using CRD.Utils.Files;
-using CRD.Utils.Http;
 using CRD.Utils.Muxing.Structs;
 using CRD.Utils.Structs;
 using CRD.Views;
@@ -108,55 +108,27 @@ public class FontsManager{
         { "Webdings", "webdings.ttf" }
     };
 
-    private string root = "https://static.crunchyroll.com/vilos-v2/web/vilos/assets/libass-fonts/";
-
-
     private readonly FontIndex index = new();
+    private int _fontSourceNoticePrinted;
 
     private void EnsureIndex(string fontsDir){
-        index.Rebuild(fontsDir);
+        index.Rebuild(GetFontSearchDirectories(fontsDir));
     }
 
-    public async Task GetFontsAsync(){
+    public Task GetFontsAsync(){
-        Console.WriteLine("Downloading fonts...");
-        var fonts = Fonts.Values.ToList();
-
-        foreach (var font in fonts){
-            var fontLoc = Path.Combine(CfgManager.PathFONTS_DIR, font);
-
-            if (File.Exists(fontLoc) && new FileInfo(fontLoc).Length != 0){
-                continue;
-            }
-
-            var fontFolder = Path.GetDirectoryName(fontLoc);
-            if (File.Exists(fontLoc) && new FileInfo(fontLoc).Length == 0)
-                File.Delete(fontLoc);
-
         try{
-                if (!Directory.Exists(fontFolder))
+            Directory.CreateDirectory(CfgManager.PathFONTS_DIR);
-                    Directory.CreateDirectory(fontFolder!);
         } catch (Exception e){
-                Console.WriteLine($"Failed to create directory: {e.Message}");
+            Console.Error.WriteLine($"Failed to create fonts directory '{CfgManager.PathFONTS_DIR}': {e.Message}");
         }
 
-            var fontUrl = root + font;
+        if (Interlocked.Exchange(ref _fontSourceNoticePrinted, 1) == 0){
-
+            Console.WriteLine("Crunchyroll-hosted subtitle fonts are no longer available.");
-            var httpClient = HttpClientReq.Instance.GetHttpClient();
+            Console.WriteLine($"Font muxing now uses local fonts from '{CfgManager.PathFONTS_DIR}' and system font directories.");
-            try{
+            Console.WriteLine("Copy any missing subtitle fonts into the local fonts folder if muxing reports them as missing.");
-                var response = await httpClient.GetAsync(fontUrl);
-                if (response.IsSuccessStatusCode){
-                    var fontData = await response.Content.ReadAsByteArrayAsync();
-                    await File.WriteAllBytesAsync(fontLoc, fontData);
-                    Console.WriteLine($"Downloaded: {font}");
-                } else{
-                    Console.Error.WriteLine($"Failed to download: {font}");
-                }
-            } catch (Exception e){
-                Console.Error.WriteLine($"Error downloading {font}: {e.Message}");
-            }
         }
 
-        Console.WriteLine("All required fonts downloaded!");
+        return Task.CompletedTask;
     }
 
     public static List<string> ExtractFontsFromAss(string ass, bool checkTypesettingFonts){
@@ -273,7 +245,7 @@ public class FontsManager{
         }
 
         if (missing.Count > 0)
-            MainWindow.Instance.ShowError($"Missing Fonts:\n{string.Join(", ", missing)}");
+            MainWindow.Instance.ShowError($"Missing Fonts:\n{string.Join(", ", missing)}\n\nAdd the missing font files to:\n{CfgManager.PathFONTS_DIR}");
 
         return fontsList;
     }
@@ -288,8 +260,8 @@ public class FontsManager{
             return true;
 
         if (Fonts.TryGetValue(req, out var crFile)){
-            var p = Path.Combine(fontsDir, crFile);
+            var p = FindKnownFontFile(crFile, fontsDir);
-            if (File.Exists(p)){
+            if (!string.IsNullOrEmpty(p)){
                 resolvedPath = p;
                 return true;
             }
@@ -303,27 +275,44 @@ public class FontsManager{
                 return true;
 
             if (Fonts.TryGetValue(family, out var crFamilyFile)){
-                var p = Path.Combine(fontsDir, crFamilyFile);
+                var p = FindKnownFontFile(crFamilyFile, fontsDir);
-                if (File.Exists(p)){
+                if (!string.IsNullOrEmpty(p)){
                     resolvedPath = p;
                     return true;
                 }
             }
         }
 
+        var reqNoSpace = RemoveSpaces(req);
+
+        foreach (var kv in Fonts){
+            if (RemoveSpaces(kv.Key).Equals(reqNoSpace, StringComparison.OrdinalIgnoreCase)){
+                var p = FindKnownFontFile(kv.Value, fontsDir);
+                if (!string.IsNullOrEmpty(p)){
+                    resolvedPath = p;
+                    isExactMatch = false;
+                    return true;
+                }
+            }
+        }
+
         return false;
     }
 
     private static string StripStyleSuffix(string name){
-        var n = name;
+        var parts = name.Split(' ', StringSplitOptions.RemoveEmptyEntries);
 
-        n = Regex.Replace(n, @"\s+(Bold\s+Italic|Bold\s+Oblique|Black\s+Italic|Black|Bold|Italic|Oblique|Regular)$",
+        var styleWords = new HashSet<string>(StringComparer.OrdinalIgnoreCase){
-            "", RegexOptions.IgnoreCase).Trim();
+            "Bold", "Italic", "Oblique", "Regular", "Black",
+            "Light", "Medium", "Semi", "Condensed"
+        };
 
-        return n;
+        var filtered = parts.Where(p => !styleWords.Contains(p)).ToList();
+
+        return filtered.Count > 0 ? string.Join(" ", filtered) : name;
     }
 
-    public static string NormalizeFontKey(string s){
+    private static string NormalizeFontKey(string s){
         if (string.IsNullOrWhiteSpace(s))
             return string.Empty;
 
@@ -332,17 +321,24 @@ public class FontsManager{
         if (s.StartsWith("@"))
             s = s.Substring(1);
 
+        // Convert camel case (TimesNewRoman → Times New Roman)
         s = Regex.Replace(s, @"(?<=[a-z])([A-Z])", " $1");
 
+        // unify separators
         s = s.Replace('_', ' ').Replace('-', ' ');
 
-        s = Regex.Replace(s, @"\s+", " ").Trim();
+        // remove MT suffix (ArialMT → Arial)
+        s = Regex.Replace(s, @"MT$", "", RegexOptions.IgnoreCase);
 
-        s = Regex.Replace(s, @"\s+Regular$", "", RegexOptions.IgnoreCase);
+        // collapse spaces
+        s = Regex.Replace(s, @"\s+", " ").Trim();
 
         return s;
     }
 
+    private static string RemoveSpaces(string s)
+        => s.Replace(" ", "");
+
     private static string MakeUniqueAttachmentName(string path, List<ParsedFont> existing){
         var baseName = Path.GetFileName(path);
 
@@ -356,24 +352,80 @@ public class FontsManager{
         return $"{hash}-{baseName}";
     }
 
+    private static IEnumerable<string> GetFontSearchDirectories(string fontsDir){
+        var seen = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        var paths = new List<string>();
+
+        void AddIfUsable(string? dir){
+            if (string.IsNullOrWhiteSpace(dir))
+                return;
+
+            try{
+                var fullPath = Path.GetFullPath(dir);
+                if (Directory.Exists(fullPath) && seen.Add(fullPath))
+                    paths.Add(fullPath);
+            } catch{
+                // ignore invalid paths
+            }
+        }
+
+        AddIfUsable(fontsDir);
+
+        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)){
+            AddIfUsable(Environment.GetFolderPath(Environment.SpecialFolder.Fonts));
+        } else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX)){
+            AddIfUsable("/System/Library/Fonts");
+            AddIfUsable("/Library/Fonts");
+            AddIfUsable(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), "Library", "Fonts"));
+        } else{
+            AddIfUsable("/usr/share/fonts");
+            AddIfUsable("/usr/local/share/fonts");
+            AddIfUsable(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".fonts"));
+            AddIfUsable(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".local", "share", "fonts"));
+        }
+
+        return paths;
+    }
+
+    private static string FindKnownFontFile(string fileName, string fontsDir){
+        foreach (var dir in GetFontSearchDirectories(fontsDir)){
+            var path = Path.Combine(dir, fileName);
+            if (File.Exists(path))
+                return path;
+        }
+
+        return string.Empty;
+    }
+
 
     private sealed class FontIndex{
         private readonly Dictionary<string, Candidate> map = new(StringComparer.OrdinalIgnoreCase);
 
-        public void Rebuild(string fontsDir){
+        public void Rebuild(IEnumerable<string> fontDirs){
             map.Clear();
-            if (!Directory.Exists(fontsDir)) return;
+            foreach (var fontsDir in fontDirs){
+                if (!Directory.Exists(fontsDir))
+                    continue;
 
+                try{
                     foreach (var path in Directory.EnumerateFiles(fontsDir, "*.*", SearchOption.AllDirectories)){
                         var ext = Path.GetExtension(path).ToLowerInvariant();
                         if (ext is not (".ttf" or ".otf" or ".ttc" or ".otc" or ".woff" or ".woff2"))
                             continue;
 
+                        try{
                             foreach (var desc in LoadDescriptions(path)){
                                 foreach (var alias in BuildAliases(desc)){
                                     Add(alias, path);
                                 }
                             }
+                        } catch (Exception e){
+                            Console.Error.WriteLine($"Failed to inspect font '{path}': {e.Message}");
+                        }
+                    }
+                } catch (Exception e){
+                    Console.Error.WriteLine($"Failed to scan font directory '{fontsDir}': {e.Message}");
+                }
             }
         }
 
@@ -440,9 +492,9 @@ public class FontsManager{
         }
 
         private static IEnumerable<string> BuildAliases(FontDescription d){
-            var family = d.FontFamilyInvariantCulture.Trim();
+            var family = d.FontFamilyInvariantCulture?.Trim() ?? string.Empty;
-            var sub = d.FontSubFamilyNameInvariantCulture.Trim(); // Regular/Bold/Italic
+            var sub = d.FontSubFamilyNameInvariantCulture?.Trim() ?? string.Empty; // Regular/Bold/Italic
-            var full = d.FontNameInvariantCulture.Trim(); // "Family Subfamily"
+            var full = d.FontNameInvariantCulture?.Trim() ?? string.Empty; // "Family Subfamily"
 
             if (!string.IsNullOrWhiteSpace(family)) yield return family;
             if (!string.IsNullOrWhiteSpace(full)) yield return full;

CRD/Utils/Muxing/Merger.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
 using CRD.Utils.Muxing.Commands;
 using CRD.Utils.Muxing.Structs;
@@ -27,7 +28,7 @@ public class Merger{
     }
     
 
-    public async Task<bool> Merge(string type, string bin){
+    public async Task<bool> Merge(string type, string bin, CancellationToken cancellationToken = default){
         string command = type switch{
             "ffmpeg" => FFmpeg(),
             "mkvmerge" => MkvMerge(),
@@ -40,7 +41,7 @@ public class Merger{
         }
 
         Console.WriteLine($"[{type}] Started merging");
-        var result = await Helpers.ExecuteCommandAsync(bin, command);
+        var result = await Helpers.ExecuteCommandAsync(bin, command, cancellationToken);
 
         if (!result.IsOk && type == "mkvmerge" && result.ErrorCode == 1){
             Console.Error.WriteLine($"[{type}] Mkvmerge finished with at least one warning");

CRD/Utils/Muxing/Syncing/SyncingHelper.cs

@@ -213,7 +213,7 @@ public class SyncingHelper{
             Pixels = GetPixelsArray(f.FilePath)
         }).ToList();
 
-        var delay = 0.0;
+        var delay = double.NaN;
 
         foreach (var baseFrame in baseFrames){
             var baseFramePixels = GetPixelsArray(baseFrame.FilePath);

CRD/Utils/Muxing/Syncing/VideoSyncer.cs

@@ -14,7 +14,9 @@ public class VideoSyncer{
     public static async Task<(double offSet, double startOffset, double endOffset, double lengthDiff)> ProcessVideo(string baseVideoPath, string compareVideoPath){
         string baseFramesDir, baseFramesDirEnd;
         string compareFramesDir, compareFramesDirEnd;
-        string cleanupDir;
+        string cleanupDir = string.Empty;
+        double baseEndWindowOffset = 0;
+        double compareEndWindowOffset = 0;
         try{
             var tempDir = CfgManager.PathTEMP_DIR;
             string uuid = Guid.NewGuid().ToString();
@@ -46,8 +48,13 @@ public class VideoSyncer{
                 return (-100, 0, 0, 0);
             }
 
-            var extractFramesBaseEnd = await SyncingHelper.ExtractFrames(baseVideoPath, baseFramesDirEnd, baseVideoDurationTimeSpan.Value.TotalSeconds - 360, 360);
+            var baseEndWindowDuration = Math.Min(360, baseVideoDurationTimeSpan.Value.TotalSeconds);
-            var extractFramesCompareEnd = await SyncingHelper.ExtractFrames(compareVideoPath, compareFramesDirEnd, compareVideoDurationTimeSpan.Value.TotalSeconds - 360, 360);
+            var compareEndWindowDuration = Math.Min(360, compareVideoDurationTimeSpan.Value.TotalSeconds);
+            baseEndWindowOffset = Math.Max(0, baseVideoDurationTimeSpan.Value.TotalSeconds - baseEndWindowDuration);
+            compareEndWindowOffset = Math.Max(0, compareVideoDurationTimeSpan.Value.TotalSeconds - compareEndWindowDuration);
+
+            var extractFramesBaseEnd = await SyncingHelper.ExtractFrames(baseVideoPath, baseFramesDirEnd, baseEndWindowOffset, baseEndWindowDuration);
+            var extractFramesCompareEnd = await SyncingHelper.ExtractFrames(compareVideoPath, compareFramesDirEnd, compareEndWindowOffset, compareEndWindowDuration);
 
             if (!extractFramesBaseStart.IsOk || !extractFramesCompareStart.IsOk || !extractFramesBaseEnd.IsOk || !extractFramesCompareEnd.IsOk){
                 Console.Error.WriteLine("Failed to extract Frames to Compare");
@@ -57,24 +64,24 @@ public class VideoSyncer{
             // Load frames from start of the videos
             var baseFramesStart = Directory.GetFiles(baseFramesDir).Select(fp => new FrameData{
                 FilePath = fp,
-                Time = GetTimeFromFileName(fp, extractFramesBaseStart.frameRate)
+                Time = GetTimeFromFileName(fp, extractFramesBaseStart.frameRate, 0)
-            }).ToList();
+            }).OrderBy(frame => frame.Time).ToList();
 
             var compareFramesStart = Directory.GetFiles(compareFramesDir).Select(fp => new FrameData{
                 FilePath = fp,
-                Time = GetTimeFromFileName(fp, extractFramesCompareStart.frameRate)
+                Time = GetTimeFromFileName(fp, extractFramesCompareStart.frameRate, 0)
-            }).ToList();
+            }).OrderBy(frame => frame.Time).ToList();
 
             // Load frames from end of the videos
             var baseFramesEnd = Directory.GetFiles(baseFramesDirEnd).Select(fp => new FrameData{
                 FilePath = fp,
-                Time = GetTimeFromFileName(fp, extractFramesBaseEnd.frameRate)
+                Time = GetTimeFromFileName(fp, extractFramesBaseEnd.frameRate, baseEndWindowOffset)
-            }).ToList();
+            }).OrderBy(frame => frame.Time).ToList();
 
             var compareFramesEnd = Directory.GetFiles(compareFramesDirEnd).Select(fp => new FrameData{
                 FilePath = fp,
-                Time = GetTimeFromFileName(fp, extractFramesCompareEnd.frameRate)
+                Time = GetTimeFromFileName(fp, extractFramesCompareEnd.frameRate, compareEndWindowOffset)
-            }).ToList();
+            }).OrderBy(frame => frame.Time).ToList();
 
 
             // Calculate offsets
@@ -83,13 +90,14 @@ public class VideoSyncer{
 
             var lengthDiff = (baseVideoDurationTimeSpan.Value.TotalMicroseconds - compareVideoDurationTimeSpan.Value.TotalMicroseconds) / 1000000;
 
-            endOffset += lengthDiff;
+            if (double.IsNaN(startOffset) || double.IsNaN(endOffset)){
+                Console.Error.WriteLine("Couldn't find enough matching frames to sync dub.");
+                return (-100, startOffset, endOffset, lengthDiff);
+            }
 
             Console.WriteLine($"Start offset: {startOffset} seconds");
             Console.WriteLine($"End offset: {endOffset} seconds");
 
-            CleanupDirectory(cleanupDir);
-
             baseFramesStart.Clear();
             baseFramesEnd.Clear();
             compareFramesStart.Clear();
@@ -112,21 +120,23 @@ public class VideoSyncer{
         } catch (Exception e){
             Console.Error.WriteLine(e);
             return (-100, 0, 0, 0);
+        } finally{
+            CleanupDirectory(cleanupDir);
         }
     }
 
     private static void CleanupDirectory(string dirPath){
-        if (Directory.Exists(dirPath)){
+        if (!string.IsNullOrEmpty(dirPath) && Directory.Exists(dirPath)){
             Directory.Delete(dirPath, true);
         }
     }
 
-    private static double GetTimeFromFileName(string fileName, double frameRate){
+    private static double GetTimeFromFileName(string fileName, double frameRate, double timeOffset){
         var match = Regex.Match(Path.GetFileName(fileName), @"frame(\d+)");
         if (match.Success){
-            return int.Parse(match.Groups[1].Value) / frameRate;
+            return timeOffset + int.Parse(match.Groups[1].Value) / frameRate;
         }
 
-        return 0;
+        return timeOffset;
     }
 }

CRD/Utils/Notifications/INotificationProvider.cs

@@ -0,0 +1,10 @@
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace CRD.Utils.Notifications;
+
+public interface INotificationProvider{
+    NotificationProviderType Type{ get; }
+
+    Task SendAsync(NotificationProviderConfig config, NotificationEvent notificationEvent, CancellationToken cancellationToken = default);
+}

CRD/Utils/Notifications/NotificationDispatcher.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using CRD.Utils.Notifications.Providers;
+
+namespace CRD.Utils.Notifications;
+
+public class NotificationDispatcher{
+    public static NotificationDispatcher Instance{ get; } = new();
+
+    private readonly IReadOnlyDictionary<NotificationProviderType, INotificationProvider> providers;
+
+    private NotificationDispatcher(){
+        var providerInstances = new INotificationProvider[]{
+            new SoundNotificationProvider(),
+            new ExecuteNotificationProvider(),
+            new WebhookNotificationProvider()
+        };
+
+        providers = providerInstances.ToDictionary(provider => provider.Type);
+    }
+
+    public async Task PublishAsync(NotificationSettings? settings, NotificationEvent notificationEvent, CancellationToken cancellationToken = default){
+        await PublishWithResultAsync(settings, notificationEvent, cancellationToken);
+    }
+
+    public async Task<bool> PublishWithResultAsync(NotificationSettings? settings, NotificationEvent notificationEvent, CancellationToken cancellationToken = default){
+        if (settings?.Providers == null || settings.Providers.Count == 0){
+            return false;
+        }
+
+        var sentSuccessfully = false;
+
+        foreach (var config in settings.Providers.Where(provider => provider.Enabled && provider.Handles(notificationEvent.Type))){
+            if (!providers.TryGetValue(config.Type, out var provider)){
+                continue;
+            }
+
+            try{
+                await provider.SendAsync(config, notificationEvent, cancellationToken);
+                sentSuccessfully = true;
+            } catch (Exception exception){
+                Console.Error.WriteLine($"Failed to send {config.Type} notification: {exception}");
+            }
+        }
+
+        return sentSuccessfully;
+    }
+}

CRD/Utils/Notifications/NotificationEvent.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+
+namespace CRD.Utils.Notifications;
+
+public class NotificationEvent{
+    public NotificationEventType Type{ get; set; }
+
+    public string Title{ get; set; } = string.Empty;
+
+    public string Message{ get; set; } = string.Empty;
+
+    public DateTimeOffset TimestampUtc{ get; set; } = DateTimeOffset.UtcNow;
+
+    public Dictionary<string, string> Metadata{ get; set; } = [];
+}

CRD/Utils/Notifications/NotificationEventType.cs

@@ -0,0 +1,10 @@
+namespace CRD.Utils.Notifications;
+
+public enum NotificationEventType{
+    QueueFinished,
+    DownloadFinished,
+    DownloadFailed,
+    TrackedSeriesEpisodeReleased,
+    LoginExpired,
+    UpdateAvailable
+}

CRD/Utils/Notifications/NotificationProviderConfig.cs

@@ -0,0 +1,37 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace CRD.Utils.Notifications;
+
+public class NotificationProviderConfig{
+    [JsonProperty("type")]
+    public NotificationProviderType Type{ get; set; }
+
+    [JsonProperty("enabled")]
+    public bool Enabled{ get; set; }
+
+    [JsonProperty("events")]
+    public List<NotificationEventType> Events{ get; set; } = [];
+
+    [JsonProperty("path")]
+    public string Path{ get; set; } = string.Empty;
+
+    [JsonProperty("url")]
+    public string Url{ get; set; } = string.Empty;
+
+    [JsonProperty("method")]
+    public string Method{ get; set; } = "POST";
+
+    [JsonProperty("headers")]
+    public Dictionary<string, string> Headers{ get; set; } = [];
+
+    [JsonProperty("content_type")]
+    public string ContentType{ get; set; } = "application/json";
+
+    [JsonProperty("body_template")]
+    public string BodyTemplate{ get; set; } = string.Empty;
+
+    public bool Handles(NotificationEventType eventType){
+        return Events.Count == 0 || Events.Contains(eventType);
+    }
+}

CRD/Utils/Notifications/NotificationProviderType.cs

@@ -0,0 +1,7 @@
+namespace CRD.Utils.Notifications;
+
+public enum NotificationProviderType{
+    Sound,
+    Execute,
+    Webhook
+}

CRD/Utils/Notifications/NotificationPublisher.cs

@@ -0,0 +1,178 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using CRD.Utils.Structs;
+using CRD.Utils.Structs.History;
+using CRD.Utils.Structs.Crunchyroll;
+
+namespace CRD.Utils.Notifications;
+
+public class NotificationPublisher{
+    public static NotificationPublisher Instance{ get; } = new();
+
+    private bool loginExpiredNotificationSent;
+    private string notifiedUpdateVersion = string.Empty;
+
+    public Task PublishDownloadFailedAsync(NotificationSettings? settings, CrunchyEpMeta data, string? error = null){
+        return NotificationDispatcher.Instance.PublishAsync(settings, new NotificationEvent{
+            Type = NotificationEventType.DownloadFailed,
+            Title = "Download failed",
+            Message = string.IsNullOrWhiteSpace(error)
+                ? $"Failed to download {data.SeriesTitle ?? data.EpisodeTitle ?? "item"}."
+                : $"Failed to download {data.SeriesTitle ?? data.EpisodeTitle ?? "item"}: {error}",
+            Metadata = BuildMetadata(data, error)
+        });
+    }
+
+    public Task PublishDownloadFinishedAsync(NotificationSettings? settings, CrunchyEpMeta data){
+        return NotificationDispatcher.Instance.PublishAsync(settings, new NotificationEvent{
+            Type = NotificationEventType.DownloadFinished,
+            Title = "Download finished",
+            Message = $"Finished processing {data.SeriesTitle ?? data.EpisodeTitle ?? "item"}.",
+            Metadata = BuildMetadata(data)
+        });
+    }
+
+    public Task PublishQueueFinishedAsync(NotificationSettings? settings, CrunchyEpMeta data){
+        return NotificationDispatcher.Instance.PublishAsync(settings, new NotificationEvent{
+            Type = NotificationEventType.QueueFinished,
+            Title = "Downloads finished",
+            Message = "All queued downloads have finished processing.",
+            Metadata = []
+        });
+    }
+
+    public async Task PublishLoginExpiredAsync(NotificationSettings? settings, string? username, string? endpoint){
+        if (loginExpiredNotificationSent){
+            return;
+        }
+
+        loginExpiredNotificationSent = true;
+
+        await NotificationDispatcher.Instance.PublishAsync(settings, new NotificationEvent{
+            Type = NotificationEventType.LoginExpired,
+            Title = "Crunchyroll login expired",
+            Message = "The saved Crunchyroll session could not be refreshed. Please log in again.",
+            Metadata = new Dictionary<string, string>{
+                ["username"] = username ?? string.Empty,
+                ["endpoint"] = endpoint ?? string.Empty
+            }
+        });
+    }
+
+    public void ResetLoginExpiredNotification(){
+        loginExpiredNotificationSent = false;
+    }
+
+    public async Task PublishUpdateAvailableAsync(NotificationSettings? settings, string currentVersion, string latestVersion, string platformName, string downloadUrl){
+        if (string.Equals(notifiedUpdateVersion, latestVersion, StringComparison.OrdinalIgnoreCase)){
+            return;
+        }
+
+        notifiedUpdateVersion = latestVersion;
+
+        await NotificationDispatcher.Instance.PublishAsync(settings, new NotificationEvent{
+            Type = NotificationEventType.UpdateAvailable,
+            Title = "Update available",
+            Message = $"Version {latestVersion} is available. Current version: {currentVersion}.",
+            Metadata = new Dictionary<string, string>{
+                ["currentVersion"] = currentVersion,
+                ["latestVersion"] = latestVersion,
+                ["platform"] = platformName,
+                ["downloadUrl"] = downloadUrl
+            }
+        });
+    }
+
+    public Task<bool> PublishTrackedSeriesEpisodeReleasedAsync(NotificationSettings? settings, HistorySeries series, HistoryEpisode episode, CrBrowseEpisode? release = null, string? locale = null){
+        var episodeUrl = BuildEpisodeUrl(release, episode, locale);
+        var imageUrl = release?.Images?.Thumbnail?.FirstOrDefault()?.FirstOrDefault()?.Source
+                       ?? episode.ThumbnailImageUrl
+                       ?? string.Empty;
+        var description = release?.Description
+                          ?? episode.EpisodeDescription
+                          ?? string.Empty;
+        var premiumAvailableDate = release?.EpisodeMetadata?.PremiumAvailableDate;
+        var durationMs = release?.EpisodeMetadata?.DurationMs ?? 0;
+
+        return NotificationDispatcher.Instance.PublishWithResultAsync(settings, new NotificationEvent{
+            Type = NotificationEventType.TrackedSeriesEpisodeReleased,
+            Title = "Tracked series episode released",
+            Message = string.IsNullOrWhiteSpace(series.SeriesTitle)
+                ? $"A tracked episode is available: {episode.EpisodeTitle ?? episode.EpisodeId ?? "Unknown episode"}."
+                : $"A tracked episode is available for {series.SeriesTitle}: {episode.EpisodeTitle ?? episode.EpisodeId ?? "Unknown episode"}.",
+            Metadata = new Dictionary<string, string>{
+                ["seriesTitle"] = series.SeriesTitle ?? string.Empty,
+                ["seriesId"] = series.SeriesId ?? string.Empty,
+                ["seasonId"] = release?.EpisodeMetadata?.SeasonId ?? string.Empty,
+                ["episodeTitle"] = episode.EpisodeTitle ?? string.Empty,
+                ["episodeId"] = episode.EpisodeId ?? string.Empty,
+                ["episodeNumber"] = episode.Episode ?? string.Empty,
+                ["seasonNumber"] = episode.EpisodeSeasonNum ?? string.Empty,
+                ["releaseDate"] = episode.EpisodeCrPremiumAirDate?.ToString("O") ?? string.Empty,
+                ["premiumAvailableDate"] = premiumAvailableDate?.ToString("O") ?? episode.EpisodeCrPremiumAirDate?.ToString("O") ?? string.Empty,
+                ["episodeUrl"] = episodeUrl,
+                ["imageUrl"] = imageUrl,
+                ["description"] = description,
+                ["durationMs"] = durationMs > 0 ? durationMs.ToString() : string.Empty,
+                ["availableDubs"] = string.Join(", ", episode.HistoryEpisodeAvailableDubLang ?? []),
+                ["availableSubs"] = string.Join(", ", episode.HistoryEpisodeAvailableSoftSubs ?? [])
+            }
+        });
+    }
+
+    public void ResetUpdateAvailableNotification(){
+        notifiedUpdateVersion = string.Empty;
+    }
+
+    private static Dictionary<string, string> BuildMetadata(CrunchyEpMeta data, string? error = null){
+        var metadata = new Dictionary<string, string>{
+            ["seriesTitle"] = data.SeriesTitle ?? string.Empty,
+            ["seasonTitle"] = data.SeasonTitle ?? string.Empty,
+            ["episodeTitle"] = data.EpisodeTitle ?? string.Empty,
+            ["episodeNumber"] = data.EpisodeNumber ?? string.Empty,
+            ["episodeId"] = data.EpisodeId ?? string.Empty,
+            ["downloadPath"] = data.DownloadPath ?? string.Empty,
+            ["seasonNumber"] = data.Season ?? string.Empty,
+            ["description"] = data.Description ?? string.Empty,
+            ["imageUrl"] = data.Image ?? string.Empty,
+            ["imageUrlLarge"] = data.ImageBig ?? string.Empty,
+            ["downloadSubs"] = string.Join(", ", data.DownloadSubs ?? []),
+            ["downloadDubs"] = string.Join(", ", data.SelectedDubs ?? []),
+            ["hardsub"] = data.Hslang ?? string.Empty,
+        };
+
+        if (!string.IsNullOrWhiteSpace(data.SeriesId)){
+            metadata["seriesId"] = data.SeriesId;
+        }
+
+        if (!string.IsNullOrWhiteSpace(data.SeasonId)){
+            metadata["seasonId"] = data.SeasonId;
+        }
+
+        if (!string.IsNullOrWhiteSpace(data.EpisodeId)){
+            metadata["episodeUrl"] = $"https://www.crunchyroll.com/watch/{data.EpisodeId}";
+        }
+
+        if (!string.IsNullOrWhiteSpace(error)){
+            metadata["error"] = error;
+        }
+
+        return metadata;
+    }
+
+    private static string BuildEpisodeUrl(CrBrowseEpisode? release, HistoryEpisode episode, string? locale){
+        var episodeId = release?.Id ?? episode.EpisodeId;
+        if (string.IsNullOrWhiteSpace(episodeId)){
+            return string.Empty;
+        }
+
+        var normalizedLocale = string.IsNullOrWhiteSpace(locale) ? "en-US" : locale;
+        var slugTitle = release?.SlugTitle;
+
+        return string.IsNullOrWhiteSpace(slugTitle)
+            ? $"https://www.crunchyroll.com/{normalizedLocale}/watch/{episodeId}"
+            : $"https://www.crunchyroll.com/{normalizedLocale}/watch/{episodeId}/{slugTitle}";
+    }
+}

CRD/Utils/Notifications/NotificationSettings.cs

@@ -0,0 +1,25 @@
+using System.Collections.Generic;
+using System.Linq;
+using Newtonsoft.Json;
+
+namespace CRD.Utils.Notifications;
+
+public class NotificationSettings{
+    [JsonProperty("providers")]
+    public List<NotificationProviderConfig> Providers{ get; set; } = [];
+
+    public NotificationProviderConfig GetOrCreateProvider(NotificationProviderType type){
+        var provider = Providers.FirstOrDefault(p => p.Type == type);
+        if (provider != null){
+            provider.Events ??= [];
+            provider.Headers ??= [];
+            return provider;
+        }
+
+        provider = new NotificationProviderConfig{
+            Type = type
+        };
+        Providers.Add(provider);
+        return provider;
+    }
+}

CRD/Utils/Notifications/Providers/ExecuteNotificationProvider.cs

@@ -0,0 +1,17 @@
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace CRD.Utils.Notifications.Providers;
+
+public class ExecuteNotificationProvider : INotificationProvider{
+    public NotificationProviderType Type => NotificationProviderType.Execute;
+
+    public Task SendAsync(NotificationProviderConfig config, NotificationEvent notificationEvent, CancellationToken cancellationToken = default){
+        if (string.IsNullOrWhiteSpace(config.Path)){
+            return Task.CompletedTask;
+        }
+
+        Helpers.ExecuteFile(config.Path);
+        return Task.CompletedTask;
+    }
+}

CRD/Utils/Notifications/Providers/SoundNotificationProvider.cs

@@ -0,0 +1,17 @@
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace CRD.Utils.Notifications.Providers;
+
+public class SoundNotificationProvider : INotificationProvider{
+    public NotificationProviderType Type => NotificationProviderType.Sound;
+
+    public Task SendAsync(NotificationProviderConfig config, NotificationEvent notificationEvent, CancellationToken cancellationToken = default){
+        if (string.IsNullOrWhiteSpace(config.Path)){
+            return Task.CompletedTask;
+        }
+
+        var player = new AudioPlayer();
+        return player.PlayAsync(config.Path);
+    }
+}

CRD/Utils/Notifications/Providers/WebhookNotificationProvider.cs

@@ -0,0 +1,71 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using CRD.Utils.Http;
+using Newtonsoft.Json;
+
+namespace CRD.Utils.Notifications.Providers;
+
+public class WebhookNotificationProvider : INotificationProvider{
+    public NotificationProviderType Type => NotificationProviderType.Webhook;
+
+    public async Task SendAsync(NotificationProviderConfig config, NotificationEvent notificationEvent, CancellationToken cancellationToken = default){
+        if (string.IsNullOrWhiteSpace(config.Url)){
+            return;
+        }
+
+        using var request = new HttpRequestMessage(new HttpMethod(string.IsNullOrWhiteSpace(config.Method) ? "POST" : config.Method), config.Url);
+
+        foreach (var header in config.Headers){
+            request.Headers.TryAddWithoutValidation(header.Key, header.Value);
+        }
+
+        var body = BuildBody(config, notificationEvent);
+        if (!string.IsNullOrEmpty(body)){
+            request.Content = new StringContent(body, Encoding.UTF8, string.IsNullOrWhiteSpace(config.ContentType) ? "application/json" : config.ContentType);
+        }
+
+        var response = await HttpClientReq.Instance.SendHttpRequest(request, suppressError: false);
+        if (!response.IsOk){
+            throw new InvalidOperationException($"Webhook request failed for '{config.Url}'.");
+        }
+    }
+
+    private static string BuildBody(NotificationProviderConfig config, NotificationEvent notificationEvent){
+        if (!string.IsNullOrWhiteSpace(config.BodyTemplate)){
+            return ApplyTemplate(config.BodyTemplate, notificationEvent);
+        }
+
+        var payload = new{
+            eventType = notificationEvent.Type.ToString(),
+            title = notificationEvent.Title,
+            message = notificationEvent.Message,
+            timestampUtc = notificationEvent.TimestampUtc,
+            metadata = notificationEvent.Metadata
+        };
+
+        return JsonConvert.SerializeObject(payload);
+    }
+
+    private static string ApplyTemplate(string template, NotificationEvent notificationEvent){
+        var values = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase){
+            ["eventType"] = notificationEvent.Type.ToString(),
+            ["title"] = notificationEvent.Title,
+            ["message"] = notificationEvent.Message,
+            ["timestampUtc"] = notificationEvent.TimestampUtc.ToString("O")
+        };
+
+        foreach (var pair in notificationEvent.Metadata){
+            values[pair.Key] = pair.Value;
+        }
+
+        foreach (var pair in values){
+            template = template.Replace("{{" + pair.Key + "}}", pair.Value, StringComparison.OrdinalIgnoreCase);
+        }
+
+        return template;
+    }
+}

CRD/Utils/PeriodicWorkRunner.cs

@@ -60,7 +60,7 @@ public class PeriodicWorkRunner(Func<CancellationToken, Task> work) : IDisposabl
         }
     }
 
-    private int running = 0;
+    private int running;
 
     private async Task SafeRunWork(CancellationToken token){
         if (Interlocked.Exchange(ref running, 1) == 1){

CRD/Utils/QueueManagement/DownloadItemModelCollection.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using CRD.Utils.Structs;
+using CRD.ViewModels;
+
+namespace CRD.Utils.QueueManagement;
+
+public sealed class DownloadItemModelCollection{
+    private readonly ObservableCollection<DownloadItemModel> items = new();
+    private readonly Dictionary<CrunchyEpMeta, DownloadItemModel> models = new();
+
+    public ObservableCollection<DownloadItemModel> Items => items;
+
+    public DownloadItemModel? Find(CrunchyEpMeta item){
+        return models.TryGetValue(item, out var model)
+            ? model
+            : null;
+    }
+
+    public void Remove(CrunchyEpMeta item){
+        if (models.Remove(item, out var model)){
+            items.Remove(model);
+        } else{
+            Console.Error.WriteLine("Failed to remove episode from list");
+        }
+    }
+
+    public void Clear(){
+        models.Clear();
+        items.Clear();
+    }
+
+    public void SyncFromQueue(IEnumerable<CrunchyEpMeta> queueItems){
+        foreach (var queueItem in queueItems){
+            if (models.TryGetValue(queueItem, out var existingModel)){
+                existingModel.Refresh();
+                continue;
+            }
+
+            var newModel = new DownloadItemModel(queueItem);
+            models.Add(queueItem, newModel);
+            items.Add(newModel);
+
+            _ = newModel.LoadImage();
+        }
+    }
+}

CRD/Utils/QueueManagement/ProcessingSlotManager.cs

@@ -0,0 +1,78 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace CRD.Utils.QueueManagement;
+
+public sealed class ProcessingSlotManager{
+    private readonly SemaphoreSlim semaphore;
+    private readonly object syncLock = new();
+
+    private int limit;
+    private int borrowedPermits;
+
+    public int Limit{
+        get{
+            lock (syncLock){
+                return limit;
+            }
+        }
+    }
+
+    public ProcessingSlotManager(int initialLimit){
+        if (initialLimit < 0)
+            throw new ArgumentOutOfRangeException(nameof(initialLimit));
+
+        limit = initialLimit;
+
+        semaphore = new SemaphoreSlim(
+            initialCount: initialLimit,
+            maxCount: int.MaxValue);
+    }
+
+    public Task WaitAsync(CancellationToken cancellationToken = default){
+        return semaphore.WaitAsync(cancellationToken);
+    }
+
+    public void Release(){
+        lock (syncLock){
+            if (borrowedPermits > 0){
+                borrowedPermits--;
+                return;
+            }
+
+            semaphore.Release();
+        }
+    }
+
+    public void SetLimit(int newLimit){
+        if (newLimit < 0)
+            throw new ArgumentOutOfRangeException(nameof(newLimit));
+
+        lock (syncLock){
+            if (newLimit == limit)
+                return;
+
+            int delta = newLimit - limit;
+
+            if (delta > 0){
+                int giveBackBorrowed = Math.Min(borrowedPermits, delta);
+                borrowedPermits -= giveBackBorrowed;
+
+                int permitsToRelease = delta - giveBackBorrowed;
+                if (permitsToRelease > 0)
+                    semaphore.Release(permitsToRelease);
+            } else{
+                int permitsToRemove = -delta;
+
+                while (permitsToRemove > 0 && semaphore.Wait(0)){
+                    permitsToRemove--;
+                }
+
+                borrowedPermits += permitsToRemove;
+            }
+
+            limit = newLimit;
+        }
+    }
+}

CRD/Utils/QueueManagement/QueuePersistenceManager.cs

@@ -0,0 +1,124 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using CRD.Downloader;
+using CRD.Downloader.Crunchyroll;
+using CRD.Utils;
+using CRD.Utils.Files;
+using CRD.Utils.Structs;
+
+namespace CRD.Utils.QueueManagement;
+
+public sealed class QueuePersistenceManager : IDisposable{
+    private readonly object syncLock = new();
+    private readonly QueueManager queueManager;
+    private Timer? saveTimer;
+
+    public QueuePersistenceManager(QueueManager queueManager){
+        this.queueManager = queueManager ?? throw new ArgumentNullException(nameof(queueManager));
+        this.queueManager.QueueStateChanged += OnQueueStateChanged;
+    }
+
+    public void RestoreQueue(){
+        var options = CrunchyrollManager.Instance.CrunOptions;
+        if (!options.PersistQueue){
+            CfgManager.DeleteFileIfExists(CfgManager.PathCrQueue);
+            return;
+        }
+
+        if (!CfgManager.CheckIfFileExists(CfgManager.PathCrQueue))
+            return;
+
+        var savedQueue = CfgManager.ReadJsonFromFile<List<CrunchyEpMeta>>(CfgManager.PathCrQueue);
+        if (savedQueue == null || savedQueue.Count == 0){
+            CfgManager.DeleteFileIfExists(CfgManager.PathCrQueue);
+            return;
+        }
+
+        queueManager.ReplaceQueue(savedQueue.Select(PrepareRestoredItem));
+    }
+
+    public void SaveNow(){
+        lock (syncLock){
+            saveTimer?.Change(Timeout.InfiniteTimeSpan, Timeout.InfiniteTimeSpan);
+        }
+
+        PersistQueueSnapshot();
+    }
+
+    public void ScheduleSave(){
+        lock (syncLock){
+            if (saveTimer == null){
+                saveTimer = new Timer(_ => PersistQueueSnapshot(), null, TimeSpan.FromMilliseconds(750), Timeout.InfiniteTimeSpan);
+                return;
+            }
+
+            saveTimer.Change(TimeSpan.FromMilliseconds(750), Timeout.InfiniteTimeSpan);
+        }
+    }
+
+    private void OnQueueStateChanged(object? sender, EventArgs e){
+        ScheduleSave();
+    }
+
+    private void PersistQueueSnapshot(){
+        var options = CrunchyrollManager.Instance.CrunOptions;
+        if (!options.PersistQueue){
+            CfgManager.DeleteFileIfExists(CfgManager.PathCrQueue);
+            return;
+        }
+
+        var queue = queueManager.GetQueueSnapshot();
+        if (queue.Count == 0){
+            CfgManager.DeleteFileIfExists(CfgManager.PathCrQueue);
+            return;
+        }
+
+        var snapshot = queue
+            .Select(CloneForPersistence)
+            .Where(item => item != null)
+            .ToList();
+
+        if (snapshot.Count == 0){
+            CfgManager.DeleteFileIfExists(CfgManager.PathCrQueue);
+            return;
+        }
+
+        CfgManager.WriteJsonToFile(CfgManager.PathCrQueue, snapshot);
+    }
+
+    private static CrunchyEpMeta PrepareRestoredItem(CrunchyEpMeta item){
+        item.Data ??= [];
+        item.DownloadSubs ??= [];
+        item.downloadedFiles ??= [];
+        item.DownloadProgress ??= new DownloadProgress();
+
+        if (item.DownloadProgress.RetryAtUtc.HasValue){
+            if (item.DownloadProgress.RetryAtUtc.Value <= DateTimeOffset.UtcNow){
+                item.DownloadProgress.ResetForRetry();
+            } else{
+                item.DownloadProgress.State = DownloadState.Queued;
+                item.DownloadProgress.ResumeState = DownloadState.Downloading;
+            }
+        } else if (!item.DownloadProgress.IsFinished){
+            item.DownloadProgress.ResetForRetry();
+        }
+
+        item.RenewCancellationToken();
+        return item;
+    }
+
+    private static CrunchyEpMeta? CloneForPersistence(CrunchyEpMeta item){
+        return Helpers.DeepCopy(item);
+    }
+
+    public void Dispose(){
+        lock (syncLock){
+            saveTimer?.Dispose();
+            saveTimer = null;
+        }
+
+        queueManager.QueueStateChanged -= OnQueueStateChanged;
+    }
+}

CRD/Utils/QueueManagement/UiMutationQueue.cs

@@ -0,0 +1,79 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using Avalonia.Threading;
+
+namespace CRD.Utils.QueueManagement;
+
+public sealed class UiMutationQueue{
+    private readonly object syncLock = new();
+    private readonly Queue<Action> pendingMutations = new();
+
+    private readonly Dispatcher dispatcher;
+    private readonly DispatcherPriority priority;
+
+    private bool isProcessing;
+    private int pumpScheduled;
+
+    public UiMutationQueue()
+        : this(null, DispatcherPriority.Background){
+    }
+
+    public UiMutationQueue(
+        Dispatcher? dispatcher,
+        DispatcherPriority priority){
+        this.dispatcher = dispatcher ?? Dispatcher.UIThread;
+        this.priority = priority;
+    }
+
+    public void Enqueue(Action mutation){
+        if (mutation == null)
+            throw new ArgumentNullException(nameof(mutation));
+
+        lock (syncLock){
+            pendingMutations.Enqueue(mutation);
+        }
+
+        if (Interlocked.CompareExchange(ref pumpScheduled, 1, 0) != 0)
+            return;
+
+        dispatcher.Post(ProcessPendingMutations, priority);
+    }
+
+    private void ProcessPendingMutations(){
+        if (isProcessing)
+            return;
+
+        try{
+            isProcessing = true;
+
+            while (true){
+                Action? mutation;
+
+                lock (syncLock){
+                    mutation = pendingMutations.Count > 0
+                        ? pendingMutations.Dequeue()
+                        : null;
+                }
+
+                if (mutation is null)
+                    break;
+
+                mutation();
+            }
+        } finally{
+            isProcessing = false;
+            Interlocked.Exchange(ref pumpScheduled, 0);
+
+            bool hasPending;
+            lock (syncLock){
+                hasPending = pendingMutations.Count > 0;
+            }
+
+            if (hasPending &&
+                Interlocked.CompareExchange(ref pumpScheduled, 1, 0) == 0){
+                dispatcher.Post(ProcessPendingMutations, priority);
+            }
+        }
+    }
+}

CRD/Utils/Structs/CalendarStructs.cs

@@ -58,7 +58,7 @@ public partial class CalendarEpisode : INotifyPropertyChanged{
             if (match.Success){
                 var locale = match.Groups[1].Value; // Capture the locale part
                 var id = match.Groups[2].Value; // Capture the ID part
-                await QueueManager.Instance.CrAddEpisodeToQueue(id, Languages.Locale2language(locale).CrLocale, CrunchyrollManager.Instance.CrunOptions.DubLang, true);
+                await CrunchyrollManager.Instance.CrQueue.CrAddEpisodeToQueue(id, Languages.Locale2language(locale).CrLocale, CrunchyrollManager.Instance.CrunOptions.DubLang, true);
             }
         }
 

CRD/Utils/Structs/Crunchyroll/CrDownloadOptions.cs

@@ -1,8 +1,10 @@
 using System.Collections.Generic;
 using CRD.Utils.Http;
+using CRD.Utils.Notifications;
 using CRD.Utils.Sonarr;
 using CRD.ViewModels;
 using Newtonsoft.Json;
+using System;
 
 namespace CRD.Utils.Structs.Crunchyroll;
 
@@ -21,6 +23,9 @@ public class CrDownloadOptions{
     [JsonProperty("remove_finished_downloads")]
     public bool RemoveFinishedDownload{ get; set; }
 
+    [JsonProperty("persist_queue")]
+    public bool PersistQueue{ get; set; }
+
     [JsonIgnore]
     public int Timeout{ get; set; }
 
@@ -30,6 +35,12 @@ public class CrDownloadOptions{
     [JsonProperty("retry_attempts")]
     public int RetryAttempts{ get; set; }
     
+    [JsonProperty("playback_rate_limit_retry_delay_seconds")]
+    public int PlaybackRateLimitRetryDelaySeconds{ get; set; }
+
+    [JsonProperty("retry_max_delay_seconds")]
+    public int RetryMaxDelaySeconds{ get; set; }
+
     [JsonIgnore]
     public string Force{ get; set; } = "";
 
@@ -66,6 +77,9 @@ public class CrDownloadOptions{
     [JsonProperty("download_finished_execute_path")]
     public string? DownloadFinishedExecutePath{ get; set; }
 
+    [JsonProperty("notifications")]
+    public NotificationSettings? NotificationSettings{ get; set; }
+    
     [JsonProperty("download_only_with_all_selected_dubsub")]
     public bool DownloadOnlyWithAllSelectedDubSub{ get; set; }
 
@@ -93,6 +107,9 @@ public class CrDownloadOptions{
     [JsonProperty("history_include_cr_artists")]
     public bool HistoryIncludeCrArtists{ get; set; }
     
+    [JsonProperty("history_remove_missing_episodes")]
+    public bool HistoryRemoveMissingEpisodes{ get; set; } = true;
+
     [JsonProperty("history_lang")]
     public string? HistoryLang{ get; set; }
 
@@ -111,6 +128,12 @@ public class CrDownloadOptions{
     [JsonProperty("history_auto_refresh_mode")]
     public HistoryRefreshMode HistoryAutoRefreshMode{ get; set; }
 
+    [JsonProperty("history_auto_refresh_add_to_queue")]
+    public bool HistoryAutoRefreshAddToQueue{ get; set; } = true;
+
+    [JsonProperty("tracked_series_release_last_check_utc")]
+    public DateTime? TrackedSeriesReleaseLastCheckUtc{ get; set; }
+
 
     [JsonProperty("sonarr_properties")]
     public SonarrProperties? SonarrProperties{ get; set; }
@@ -224,6 +247,9 @@ public class CrDownloadOptions{
     [JsonProperty("download_part_size")]
     public int Partsize{ get; set; }
 
+    [JsonProperty("dub_download_delay_seconds")]
+    public int DubDownloadDelaySeconds{ get; set; }
+
     [JsonProperty("soft_subs")]
     public List<string> DlSubs{ get; set; } =[];
 
@@ -317,6 +343,9 @@ public class CrDownloadOptions{
     [JsonProperty("mux_sync_dubs")]
     public bool SyncTiming{ get; set; }
 
+    [JsonProperty("mux_sync_fallback_full_quality")]
+    public bool SyncTimingFullQualityFallback{ get; set; }
+
     [JsonProperty("mux_sync_hwaccel")]
     public string? FfmpegHwAccelFlag{ get; set; }
 
@@ -360,4 +389,46 @@ public class CrDownloadOptions{
     public bool SearchFetchFeaturedMusic{ get; set; }
 
     #endregion
+
+    public void NormalizeNotificationSettings(){
+        NotificationSettings ??= new NotificationSettings();
+
+        var hasProviders = NotificationSettings.Providers.Count > 0;
+
+        var soundProvider = NotificationSettings.GetOrCreateProvider(NotificationProviderType.Sound);
+        if (hasProviders){
+            if (soundProvider.Events.Count == 0){
+                soundProvider.Events.Add(NotificationEventType.QueueFinished);
+            }
+        } else{
+            soundProvider.Enabled = DownloadFinishedPlaySound;
+            soundProvider.Path = DownloadFinishedSoundPath ?? string.Empty;
+            soundProvider.Events.Add(NotificationEventType.QueueFinished);
+        }
+
+        var executeProvider = NotificationSettings.GetOrCreateProvider(NotificationProviderType.Execute);
+        if (hasProviders){
+            if (executeProvider.Events.Count == 0){
+                executeProvider.Events.Add(NotificationEventType.QueueFinished);
+            }
+        } else{
+            executeProvider.Enabled = DownloadFinishedExecute;
+            executeProvider.Path = DownloadFinishedExecutePath ?? string.Empty;
+            executeProvider.Events.Add(NotificationEventType.QueueFinished);
+        }
+
+        SyncLegacyNotificationFields();
+    }
+
+    public void SyncLegacyNotificationFields(){
+        NotificationSettings ??= new NotificationSettings();
+
+        var soundProvider = NotificationSettings.GetOrCreateProvider(NotificationProviderType.Sound);
+        DownloadFinishedPlaySound = soundProvider.Enabled;
+        DownloadFinishedSoundPath = soundProvider.Path;
+
+        var executeProvider = NotificationSettings.GetOrCreateProvider(NotificationProviderType.Execute);
+        DownloadFinishedExecute = executeProvider.Enabled;
+        DownloadFinishedExecutePath = executeProvider.Path;
+    }
 }

CRD/Utils/Structs/Crunchyroll/Episode/EpisodeStructs.cs

@@ -246,6 +246,12 @@ public class CrunchyEpisode : IHistorySource{
     }
 
     public bool IsSpecialSeason(){
+        if (SeasonTitle.Contains("OVA", StringComparison.Ordinal) ||
+            SeasonTitle.Contains("Special", StringComparison.Ordinal) ||
+            SeasonTitle.Contains("Extra", StringComparison.Ordinal)){
+            return true;
+        }
+        
         if (string.IsNullOrEmpty(Identifier)){
             return false;
         }
@@ -285,7 +291,20 @@ public class CrunchyEpisode : IHistorySource{
     }
 
     public SeriesType GetSeriesType(){
+        if (string.IsNullOrWhiteSpace(Identifier))
             return SeriesType.Series;
+
+        var parts = Identifier.Split('|', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+        if (parts.Length < 2)
+            return SeriesType.Series;
+
+        return parts[1] switch{
+            var p when p.StartsWith("S", StringComparison.OrdinalIgnoreCase) => SeriesType.Series,
+            var p when p.StartsWith("M", StringComparison.OrdinalIgnoreCase) => SeriesType.Movie,
+            var p when p.StartsWith("T", StringComparison.OrdinalIgnoreCase) => SeriesType.Movie,
+            var p when parts.Length == 2 && p.StartsWith("E", StringComparison.OrdinalIgnoreCase) => SeriesType.Movie,
+            _ => SeriesType.Series
+        };
     }
 
     public EpisodeType GetEpisodeType(){
@@ -373,7 +392,6 @@ public class CrunchyEpMeta{
     public string? AbsolutEpisodeNumberE{ get; set; }
     public string? Image{ get; set; }
     public string? ImageBig{ get; set; }
-    public bool Paused{ get; set; }
     public DownloadProgress DownloadProgress{ get; set; } = new();
 
     public List<string>? SelectedDubs{ get; set; }
@@ -385,6 +403,7 @@ public class CrunchyEpMeta{
     public string? DownloadPath{ get; set; }
     public string? VideoQuality{ get; set; }
     public List<string> DownloadSubs{ get; set; } =[];
+    public string? TempFileSuffix{ get; set; }
     public bool Music{ get; set; }
 
     public string Resolution{ get; set; }
@@ -399,18 +418,74 @@ public class CrunchyEpMeta{
 
     public bool HighlightAllAvailable{ get; set; }
     
-    public CancellationTokenSource Cts { get; } = new();
+    [JsonIgnore]
+    public CancellationTokenSource Cts { get; private set; } = new();
+
+    public void RenewCancellationToken(){
+        if (!Cts.IsCancellationRequested){
+            return;
+        }
+
+        Cts.Dispose();
+        Cts = new CancellationTokenSource();
+    }
+
+    public void CancelDownload(){
+        if (Cts.IsCancellationRequested){
+            return;
+        }
+
+        Cts.Cancel();
+    }
 }
 
 public class DownloadProgress{
-    public bool IsDownloading = false;
+    public DownloadState State{ get; set; } = DownloadState.Queued;
-    public bool Done = false;
+    public DownloadState ResumeState{ get; set; } = DownloadState.Downloading;
-    public bool Error = false;
     public string Doing = string.Empty;
+    public DateTimeOffset? RetryAtUtc{ get; set; }
+    public int RetryAttemptCount{ get; set; }
 
     public int Percent{ get; set; }
     public double Time{ get; set; }
     public double DownloadSpeedBytes{ get; set; }
+
+    public bool IsQueued => State == DownloadState.Queued;
+    public bool IsDownloading => State == DownloadState.Downloading;
+    public bool IsPaused => State == DownloadState.Paused;
+    public bool IsProcessing => State == DownloadState.Processing;
+    public bool IsDone => State == DownloadState.Done;
+    public bool IsError => State == DownloadState.Error;
+    public bool IsFinished => State is DownloadState.Done or DownloadState.Error;
+    public bool IsRunnable => State is DownloadState.Queued or DownloadState.Error;
+    public bool IsWaitingForRetry => RetryAtUtc.HasValue && RetryAtUtc.Value > DateTimeOffset.UtcNow;
+    
+    public void ResetForRetry(){
+        State = DownloadState.Queued;
+        ResumeState = DownloadState.Downloading;
+        Percent = 0;
+        Time = 0;
+        DownloadSpeedBytes = 0;
+        Doing = string.Empty;
+        RetryAtUtc = null;
+        RetryAttemptCount = 0;
+    }
+
+    public void ScheduleRetry(TimeSpan delay, string doing){
+        State = DownloadState.Queued;
+        ResumeState = DownloadState.Downloading;
+        Percent = 0;
+        Time = 0;
+        DownloadSpeedBytes = 0;
+        Doing = doing;
+        RetryAtUtc = DateTimeOffset.UtcNow.Add(delay);
+        RetryAttemptCount++;
+    }
+
+    public void ClearRetryState(){
+        RetryAtUtc = null;
+        RetryAttemptCount = 0;
+    }
 }
 
 public class CrunchyEpMetaData{

CRD/Utils/Structs/Crunchyroll/StreamLimits.cs

@@ -6,14 +6,22 @@ namespace CRD.Utils.Structs.Crunchyroll;
 
 public class StreamError{
     [JsonPropertyName("error")]
-    public string Error{ get; set; }
+    public string? Error{ get; set; }
 
     [JsonPropertyName("activeStreams")]
     public List<ActiveStream> ActiveStreams{ get; set; } = new ();
 
+    [JsonIgnore]
+    public string? RawJson{ get; set; }
+
     public static StreamError? FromJson(string json){
         try{
-            return Helpers.Deserialize<StreamError>(json,null);
+            var error = Helpers.Deserialize<StreamError>(json,null);
+            if (error != null){
+                error.RawJson = json;
+            }
+
+            return error;
         } catch (Exception e){
             Console.Error.WriteLine(e);
             return null;
@@ -23,6 +31,14 @@ public class StreamError{
     public bool IsTooManyActiveStreamsError(){
         return Error is "TOO_MANY_ACTIVE_STREAMS" or "TOO_MANY_CONCURRENT_STREAMS";
     }
+
+    public bool IsRateLimitError(){
+        return IsPlaybackRateLimitError();
+    }
+
+    public bool IsPlaybackRateLimitError(){
+        return Error?.Contains("4294") == true || RawJson?.Contains("4294") == true;
+    }
 }
 
 public class ActiveStream{

CRD/Utils/Structs/HelperClasses.cs

@@ -125,6 +125,8 @@ public class DownloadResponse{
     public string VideoTitle{ get; set; }
     public bool Error{ get; set; }
     public string ErrorText{ get; set; }
+    public bool RetrySuggested{ get; set; }
+    public int RetryDelaySeconds{ get; set; }
 }
 
 public class DownloadedMedia : SxItem{
@@ -133,6 +135,7 @@ public class DownloadedMedia : SxItem{
     public bool IsPrimary{ get; set; }
     
     public int bitrate{ get; set; }
+    public int? Delay{ get; set; }
     public bool? Cc{ get; set; }
     public bool? Signs{ get; set; }
 

CRD/Utils/Structs/History/HistoryEpisode.cs

@@ -34,6 +34,9 @@ public class HistoryEpisode : INotifyPropertyChanged{
     [JsonProperty("episode_was_downloaded")]
     public bool WasDownloaded{ get; set; }
 
+    [JsonProperty("episode_tracked_series_release_notified")]
+    public bool TrackedSeriesReleaseNotified{ get; set; }
+
     [JsonProperty("episode_special_episode")]
     public bool SpecialEpisode{ get; set; }
 
@@ -43,6 +46,9 @@ public class HistoryEpisode : INotifyPropertyChanged{
     [JsonProperty("episode_type")]
     public EpisodeType EpisodeType{ get; set; } = EpisodeType.Unknown;
 
+    [JsonProperty("episode_series_type")]
+    public SeriesType EpisodeSeriesType{ get; set; } = SeriesType.Unknown;
+
     [JsonProperty("episode_thumbnail_url")]
     public string? ThumbnailImageUrl{ get; set; }
 
@@ -86,7 +92,7 @@ public class HistoryEpisode : INotifyPropertyChanged{
     public Bitmap? ThumbnailImage{ get; set; }
 
     [JsonIgnore]
-    public bool IsImageLoaded{ get; private set; } = false;
+    public bool IsImageLoaded{ get; private set; }
 
     public async Task LoadImage(){
         if (IsImageLoaded || string.IsNullOrEmpty(ThumbnailImageUrl))
@@ -153,15 +159,15 @@ public class HistoryEpisode : INotifyPropertyChanged{
         
         switch (EpisodeType){
             case EpisodeType.MusicVideo:
-                await QueueManager.Instance.CrAddMusicVideoToQueue(EpisodeId ?? string.Empty, overrideDownloadPath);
+                await CrunchyrollManager.Instance.CrQueue.CrAddMusicVideoToQueue(EpisodeId ?? string.Empty, overrideDownloadPath);
                 break;
             case EpisodeType.Concert:
-                await QueueManager.Instance.CrAddConcertToQueue(EpisodeId ?? string.Empty, overrideDownloadPath);
+                await CrunchyrollManager.Instance.CrQueue.CrAddConcertToQueue(EpisodeId ?? string.Empty, overrideDownloadPath);
                 break;
             case EpisodeType.Episode:
             case EpisodeType.Unknown:
             default:
-                await QueueManager.Instance.CrAddEpisodeToQueue(EpisodeId ?? string.Empty,
+                await CrunchyrollManager.Instance.CrQueue.CrAddEpisodeToQueue(EpisodeId ?? string.Empty,
                     string.IsNullOrEmpty(CrunchyrollManager.Instance.CrunOptions.HistoryLang) ? CrunchyrollManager.Instance.DefaultLocale : CrunchyrollManager.Instance.CrunOptions.HistoryLang,
                     CrunchyrollManager.Instance.CrunOptions.DubLang, false, episodeDownloadMode);
                 break;

CRD/Utils/Structs/History/HistorySeason.cs

@@ -53,7 +53,7 @@ public class HistorySeason : INotifyPropertyChanged{
     public StringItem? _selectedVideoQualityItem;
 
     [JsonIgnore]
-    private bool Loading = false;
+    private bool Loading;
 
     [JsonIgnore]
     public StringItem? SelectedVideoQualityItem{

CRD/Utils/Structs/History/HistorySeries.cs

@@ -81,7 +81,7 @@ public class HistorySeries : INotifyPropertyChanged{
     public Bitmap? ThumbnailImage{ get; set; }
 
     [JsonIgnore]
-    public bool IsImageLoaded{ get; private set; } = false;
+    public bool IsImageLoaded{ get; private set; }
 
     [JsonIgnore]
     public bool FetchingData{ get; set; }
@@ -112,7 +112,7 @@ public class HistorySeries : INotifyPropertyChanged{
     #region Settings Override
 
     [JsonIgnore]
-    private bool Loading = false;
+    private bool Loading;
 
     [JsonIgnore]
     public StringItem? _selectedVideoQualityItem;
@@ -350,6 +350,7 @@ public class HistorySeries : INotifyPropertyChanged{
                 }
 
                 break;
+            case SeriesType.Movie:
             case SeriesType.Series:
             case SeriesType.Unknown:
             default:
@@ -396,6 +397,7 @@ public class HistorySeries : INotifyPropertyChanged{
             case SeriesType.Artist:
                 Helpers.OpenUrl($"https://www.crunchyroll.com/artist/{SeriesId}");
                 break;
+            case SeriesType.Movie:
             case SeriesType.Series:
             case SeriesType.Unknown:
             default:

CRD/Utils/Updater/Updater.cs

@@ -15,6 +15,7 @@ using CRD.Downloader;
 using CRD.Downloader.Crunchyroll;
 using CRD.Utils.Files;
 using CRD.Utils.Http;
+using CRD.Utils.Notifications;
 using Newtonsoft.Json;
 using NuGet.Versioning;
 
@@ -24,6 +25,7 @@ public class Updater : ObservableObject{
     public double Progress;
     public bool Failed;
     public string LatestVersion = "";
+    public List<GithubJson> GhAuthJson = [];
 
     public static Updater Instance{ get; } = new();
 
@@ -109,12 +111,19 @@ public class Updater : ObservableObject{
                     }
 
                     downloadUrl = asset.BrowserDownloadUrl;
+                    await NotificationPublisher.Instance.PublishUpdateAvailableAsync(
+                        CrunchyrollManager.Instance.CrunOptions.NotificationSettings,
+                        currentVersion.ToString(),
+                        selectedRelease.TagName,
+                        platformName,
+                        downloadUrl);
 
                     _ = UpdateChangelogAsync();
                     return true;
                 }
 
                 Console.WriteLine("No updates available.");
+                NotificationPublisher.Instance.ResetUpdateAvailableNotification();
                 _ = UpdateChangelogAsync();
                 return false;
             }
@@ -124,6 +133,25 @@ public class Updater : ObservableObject{
         }
     }
     
+    public async Task CheckGhJsonAsync(){
+        var url = "https://Crunchy-DL.github.io/Crunchy-Downloader/data.json";
+        try{
+            HttpClientHandler handler = new HttpClientHandler();
+            handler.UseProxy = false;
+            
+            using (var client = new HttpClient(handler)){
+                client.DefaultRequestHeaders.Add("User-Agent", "C# App");
+                var response = await client.GetStringAsync(url);
+                var authList = Helpers.Deserialize<List<GithubJson>>(response, null);
+                if (authList is{ Count: > 0 }){
+                    GhAuthJson = authList;
+                }
+            }
+        } catch (Exception e){
+            Console.Error.WriteLine("Failed to get GH CR Auth information");
+        }
+    }
+
     public async Task UpdateChangelogAsync(){
         var client = HttpClientReq.Instance.GetHttpClient();
         client.DefaultRequestHeaders.Add("User-Agent", "C# App");
@@ -138,7 +166,15 @@ public class Updater : ObservableObject{
             LatestVersion = "v1.0.0";
         }
 
-        if (existingVersion == LatestVersion || Version.Parse(existingVersion.TrimStart('v')) >= Version.Parse(LatestVersion.TrimStart('v'))){
+        if (!NuGetVersion.TryParse(existingVersion.TrimStart('v'), out var existingNuGetVersion)){
+            existingNuGetVersion = NuGetVersion.Parse("1.0.0");
+        }
+
+        if (!NuGetVersion.TryParse(LatestVersion.TrimStart('v'), out var latestNuGetVersion)){
+            latestNuGetVersion = NuGetVersion.Parse("1.0.0");
+        }
+
+        if (existingNuGetVersion >= latestNuGetVersion){
             Console.WriteLine("CHANGELOG.md is already up to date.");
             return;
         }
@@ -180,10 +216,16 @@ public class Updater : ObservableObject{
             return string.Empty;
 
         string[] lines = File.ReadAllLines(changelogFilePath);
+
         foreach (string line in lines){
-            Match match = Regex.Match(line, @"## \[(v?\d+\.\d+\.\d+)\]");
+            Match match = Regex.Match(line, @"^## \[(v?[^\]]+)\]");
-            if (match.Success)
+            if (!match.Success)
-                return match.Groups[1].Value;
+                continue;
+
+            string versionText = match.Groups[1].Value;
+
+            if (NuGetVersion.TryParse(versionText.TrimStart('v'), out _))
+                return versionText;
         }
 
         return string.Empty;
@@ -313,6 +355,18 @@ public class Updater : ObservableObject{
         }
     }
     
+    public class GithubJson{
+        [JsonProperty("type")]
+        public string Type{ get; set; } = string.Empty;
+        [JsonProperty("version_name")]
+        public string VersionName{ get; set; } = string.Empty;
+        [JsonProperty("version_code")]
+        public string VersionCode{ get; set; } = string.Empty;
+        [JsonProperty("Authorization")]
+        public string Authorization{ get; set; } = string.Empty;
+
+    }
+
     public class GithubRelease{
         [JsonProperty("tag_name")]
         public string TagName{ get; set; } = string.Empty;
@@ -370,7 +424,5 @@ public class Updater : ObservableObject{
         public bool IsForPlatform(string platform){
             return Name.Contains(platform, StringComparison.OrdinalIgnoreCase);
         }
-        
     }
-    
 }

CRD/ViewModels/AccountPageViewModel.cs

@@ -12,11 +12,10 @@ using CRD.Utils.UI;
 using CRD.ViewModels.Utils;
 using CRD.Views.Utils;
 using FluentAvalonia.UI.Controls;
-using Newtonsoft.Json;
 
 namespace CRD.ViewModels;
 
-public partial class AccountPageViewModel : ViewModelBase{
+public partial class AccountPageViewModel : ViewModelBase, IDisposable{
     [ObservableProperty]
     private Bitmap? _profileImage;
 
@@ -32,7 +31,9 @@ public partial class AccountPageViewModel : ViewModelBase{
     [ObservableProperty]
     private string _remainingTime = "";
 
-    private static DispatcherTimer? _timer;
+    private static AccountPageViewModel? _activeInstance;
+
+    private readonly DispatcherTimer _timer;
     private DateTime _targetTime;
 
     private bool IsCancelled;
@@ -40,6 +41,14 @@ public partial class AccountPageViewModel : ViewModelBase{
     private bool EndedButMaybeActive;
 
     public AccountPageViewModel(){
+        _activeInstance?.StopSubscriptionTimer();
+        _activeInstance = this;
+
+        _timer = new DispatcherTimer{
+            Interval = TimeSpan.FromSeconds(1)
+        };
+        _timer.Tick += Timer_Tick;
+
         UpdatetProfile();
     }
 
@@ -47,7 +56,7 @@ public partial class AccountPageViewModel : ViewModelBase{
         var remaining = _targetTime - DateTime.Now;
         if (remaining <= TimeSpan.Zero){
             RemainingTime = "No active Subscription";
-            _timer?.Stop();
+            _timer.Stop();
             if (UnknownEndDate){
                 RemainingTime = "Unknown Subscription end date";
             }
@@ -55,30 +64,32 @@ public partial class AccountPageViewModel : ViewModelBase{
             if (EndedButMaybeActive){
                 RemainingTime = "Subscription maybe ended";
             }
-
-            if (CrunchyrollManager.Instance.CrAuthEndpoint1.Subscription != null){
-                Console.Error.WriteLine(JsonConvert.SerializeObject(CrunchyrollManager.Instance.CrAuthEndpoint1.Subscription, Formatting.Indented));
-            }
         } else{
             RemainingTime = $"{(IsCancelled ? "Subscription ending in: " : "Subscription refreshing in: ")}{remaining:dd\\:hh\\:mm\\:ss}";
         }
     }
 
     public void UpdatetProfile(){
+        StopSubscriptionTimer();
+        IsCancelled = false;
+        UnknownEndDate = false;
+        EndedButMaybeActive = false;
+        RemainingTime = "No active Subscription";
 
         var firstEndpoint = CrunchyrollManager.Instance.CrAuthEndpoint1;
         var firstEndpointProfile = firstEndpoint.Profile;
 
-        HasMultiProfile = firstEndpoint.MultiProfile.Profiles.Count > 1;
+        var isLoggedIn = firstEndpointProfile.Username != "???";
+        HasMultiProfile = isLoggedIn && firstEndpoint.MultiProfile.Profiles.Count > 1;
         ProfileName = firstEndpointProfile.ProfileName ?? firstEndpointProfile.Username ?? "???"; // Default or fetched user name
-        LoginLogoutText = firstEndpointProfile.Username == "???" ? "Login" : "Logout"; // Default state
+        LoginLogoutText = isLoggedIn ? "Logout" : "Login"; // Default state
         LoadProfileImage("https://static.crunchyroll.com/assets/avatar/170x170/" +
                          (string.IsNullOrEmpty(firstEndpointProfile.Avatar) ? "crbrand_avatars_logo_marks_mangagirl_taupe.png" : firstEndpointProfile.Avatar));
 
 
         var subscriptions = CrunchyrollManager.Instance.CrAuthEndpoint1.Subscription;
 
-        if (subscriptions != null){
+        if (subscriptions != null && HasSubscriptionData(subscriptions)){
             if (subscriptions.SubscriptionProducts is{ Count: >= 1 }){
                 var sub = subscriptions.SubscriptionProducts.First();
                 IsCancelled = sub.IsCancelled;
@@ -97,23 +108,8 @@ public partial class AccountPageViewModel : ViewModelBase{
 
             if (!UnknownEndDate){
                 _targetTime = subscriptions.NextRenewalDate;
-                _timer = new DispatcherTimer{
-                    Interval = TimeSpan.FromSeconds(1)
-                };
-                _timer.Tick += Timer_Tick;
                 _timer.Start();
-            }
+                Timer_Tick(null, EventArgs.Empty);
-        } else{
-            RemainingTime = "No active Subscription";
-            if (_timer != null){
-                _timer.Stop();
-                _timer.Tick -= Timer_Tick;
-            }
-
-            RaisePropertyChanged(nameof(RemainingTime));
-
-            if (subscriptions != null){
-                Console.Error.WriteLine(JsonConvert.SerializeObject(subscriptions, Formatting.Indented));
             }
         }
 
@@ -126,6 +122,26 @@ public partial class AccountPageViewModel : ViewModelBase{
         }
     }
 
+    private static bool HasSubscriptionData(CRD.Utils.Structs.Crunchyroll.Subscription subscriptions){
+        return subscriptions.SubscriptionProducts is{ Count: > 0 } ||
+               subscriptions.ThirdPartySubscriptionProducts is{ Count: > 0 } ||
+               subscriptions.NonrecurringSubscriptionProducts is{ Count: > 0 } ||
+               subscriptions.FunimationSubscriptions is{ Count: > 0 };
+    }
+
+    private void StopSubscriptionTimer(){
+        _timer.Stop();
+    }
+
+    public void Dispose(){
+        _timer.Tick -= Timer_Tick;
+        StopSubscriptionTimer();
+
+        if (ReferenceEquals(_activeInstance, this)){
+            _activeInstance = null;
+        }
+    }
+
     [RelayCommand]
     public async Task Button_Press(){
         if (LoginLogoutText == "Login"){

CRD/ViewModels/AddDownloadPageViewModel.cs

@@ -207,14 +207,14 @@ public partial class AddDownloadPageViewModel : ViewModelBase{
 
                 if (music != null){
                     var meta = musicClass.EpisodeMeta(music);
-                    QueueManager.Instance.CrAddMusicMetaToQueue(meta);
+                    CrunchyrollManager.Instance.CrQueue.CrAddMusicMetaToQueue(meta);
                 }
             }
         } else if (AddAllEpisodes){
             var musicClass = CrunchyrollManager.Instance.CrMusic;
             if (currentMusicVideoList == null) return;
             foreach (var meta in currentMusicVideoList.Data.Select(crunchyMusicVideo => musicClass.EpisodeMeta(crunchyMusicVideo))){
-                QueueManager.Instance.CrAddMusicMetaToQueue(meta);
+                CrunchyrollManager.Instance.CrQueue.CrAddMusicMetaToQueue(meta);
             }
         }
     }
@@ -223,7 +223,7 @@ public partial class AddDownloadPageViewModel : ViewModelBase{
         AddItemsToSelectedEpisodes();
 
         if (currentSeriesList != null){
-            await QueueManager.Instance.CrAddSeriesToQueue(
+            await CrunchyrollManager.Instance.CrQueue.CrAddSeriesToQueue(
                 currentSeriesList,
                 new CrunchyMultiDownload(
                     CrunchyrollManager.Instance.CrunOptions.DubLang,
@@ -327,17 +327,17 @@ public partial class AddDownloadPageViewModel : ViewModelBase{
     }
 
     private void HandleMusicVideoUrl(string id){
-        _ = QueueManager.Instance.CrAddMusicVideoToQueue(id);
+        _ = CrunchyrollManager.Instance.CrQueue.CrAddMusicVideoToQueue(id);
         ResetState();
     }
 
     private void HandleConcertUrl(string id){
-        _ = QueueManager.Instance.CrAddConcertToQueue(id);
+        _ = CrunchyrollManager.Instance.CrQueue.CrAddConcertToQueue(id);
         ResetState();
     }
 
     private void HandleEpisodeUrl(string locale, string id){
-        _ = QueueManager.Instance.CrAddEpisodeToQueue(
+        _ = CrunchyrollManager.Instance.CrQueue.CrAddEpisodeToQueue(
             id, DetermineLocale(locale),
             CrunchyrollManager.Instance.CrunOptions.DubLang, true);
         ResetState();

CRD/ViewModels/DownloadsPageViewModel.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
+using System.Globalization;
 using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
@@ -20,16 +21,16 @@ public partial class DownloadsPageViewModel : ViewModelBase{
     public ObservableCollection<DownloadItemModel> Items{ get; }
 
     [ObservableProperty]
-    private bool _shutdownWhenQueueEmpty;
+    private bool shutdownWhenQueueEmpty;
 
     [ObservableProperty]
-    private bool _autoDownload;
+    private bool autoDownload;
 
     [ObservableProperty]
-    private bool _removeFinished;
+    private bool removeFinished;
 
     [ObservableProperty]
-    private QueueManager _queueManagerIns;
+    private QueueManager queueManagerIns;
 
     public DownloadsPageViewModel(){
         QueueManagerIns = QueueManager.Instance;
@@ -63,10 +64,10 @@ public partial class DownloadsPageViewModel : ViewModelBase{
     [RelayCommand]
     public void ClearQueue(){
         var items = QueueManagerIns.Queue;
-        QueueManagerIns.Queue.Clear();
+        QueueManagerIns.ClearQueue();
 
         foreach (var crunchyEpMeta in items){
-            if (!crunchyEpMeta.DownloadProgress.Done){
+            if (!crunchyEpMeta.DownloadProgress.IsDone){
                 foreach (var downloadItemDownloadedFile in crunchyEpMeta.downloadedFiles){
                     try{
                         if (File.Exists(downloadItemDownloadedFile)){
@@ -85,13 +86,26 @@ public partial class DownloadsPageViewModel : ViewModelBase{
         var items = QueueManagerIns.Queue;
 
         foreach (var crunchyEpMeta in items){
-            if (crunchyEpMeta.DownloadProgress.Error){
+            if (crunchyEpMeta.DownloadProgress.IsError){
-                crunchyEpMeta.DownloadProgress = new();
+                crunchyEpMeta.DownloadProgress.ResetForRetry();
             }
         }
 
         QueueManagerIns.UpdateDownloadListItems();
     }
+    
+    [RelayCommand]
+    public void PauseQueue(){
+        AutoDownload = false;
+        foreach (var item in Items){
+            if (item.epMeta.DownloadProgress.State is DownloadState.Downloading or DownloadState.Processing){
+                item.ToggleIsDownloading();
+            }
+        }
+
+        QueueManagerIns.UpdateDownloadListItems();
+    }
+    
 }
 
 public partial class DownloadItemModel : INotifyPropertyChanged{
@@ -113,6 +127,7 @@ public partial class DownloadItemModel : INotifyPropertyChanged{
 
 
     public bool Error{ get; set; }
+    public bool ShowPauseIcon{ get; set; }
 
     public DownloadItemModel(CrunchyEpMeta epMetaF){
         epMeta = epMetaF;
@@ -121,20 +136,14 @@ public partial class DownloadItemModel : INotifyPropertyChanged{
         Title = epMeta.SeriesTitle + (!string.IsNullOrEmpty(epMeta.Season) ? " - S" + epMeta.Season + "E" + (epMeta.EpisodeNumber != string.Empty ? epMeta.EpisodeNumber : epMeta.AbsolutEpisodeNumberE) : "") + " - " +
                 epMeta.EpisodeTitle;
 
-        isDownloading = epMeta.DownloadProgress.IsDownloading || Done;
+        Done = epMeta.DownloadProgress.IsDone;
-
+        isDownloading = epMeta.DownloadProgress.State is DownloadState.Downloading or DownloadState.Processing;
-        Done = epMeta.DownloadProgress.Done;
+        ShowPauseIcon = isDownloading;
         Percent = epMeta.DownloadProgress.Percent;
-        Time = "Estimated Time: " + TimeSpan.FromSeconds(epMeta.DownloadProgress.Time).ToString(@"hh\:mm\:ss");
+        Time = GetTimeText();
-        DownloadSpeed = CrunchyrollManager.Instance.CrunOptions.DownloadSpeedInBits
+        DownloadSpeed = GetDownloadSpeedText();
-            ? $"{epMeta.DownloadProgress.DownloadSpeedBytes * 8 / 1000000.0:F2} Mb/s"
+        Paused = epMeta.DownloadProgress.IsPaused;
-            : $"{epMeta.DownloadProgress.DownloadSpeedBytes / 1000000.0:F2} MB/s";
+        DoingWhat = GetDoingWhatText();
-
-        ;
-        Paused = epMeta.Paused || !isDownloading && !epMeta.Paused;
-        DoingWhat = epMeta.Paused ? "Paused" :
-            Done ? (epMeta.DownloadProgress.Doing != string.Empty ? epMeta.DownloadProgress.Doing : "Done") :
-            epMeta.DownloadProgress.Doing != string.Empty ? epMeta.DownloadProgress.Doing : "Waiting";
 
         InfoText = JoinWithSeparator(
             GetDubString(),
@@ -143,7 +152,7 @@ public partial class DownloadItemModel : INotifyPropertyChanged{
         );
         InfoTextHover = epMeta.AvailableQualities;
 
-        Error = epMeta.DownloadProgress.Error;
+        Error = epMeta.DownloadProgress.IsError;
     }
 
     string JoinWithSeparator(params string[] parts){
@@ -191,18 +200,15 @@ public partial class DownloadItemModel : INotifyPropertyChanged{
     }
 
     public void Refresh(){
-        isDownloading = epMeta.DownloadProgress.IsDownloading || Done;
+        Done = epMeta.DownloadProgress.IsDone;
-        Done = epMeta.DownloadProgress.Done;
+        isDownloading = epMeta.DownloadProgress.State is DownloadState.Downloading or DownloadState.Processing;
+        ShowPauseIcon = isDownloading;
         Percent = epMeta.DownloadProgress.Percent;
-        Time = "Estimated Time: " + TimeSpan.FromSeconds(epMeta.DownloadProgress.Time).ToString(@"hh\:mm\:ss");
+        Time = GetTimeText();
-        DownloadSpeed = CrunchyrollManager.Instance.CrunOptions.DownloadSpeedInBits
+        DownloadSpeed = GetDownloadSpeedText();
-            ? $"{epMeta.DownloadProgress.DownloadSpeedBytes * 8 / 1000000.0:F2} Mb/s"
-            : $"{epMeta.DownloadProgress.DownloadSpeedBytes / 1000000.0:F2} MB/s";
 
-        Paused = epMeta.Paused || !isDownloading && !epMeta.Paused;
+        Paused = epMeta.DownloadProgress.IsPaused;
-        DoingWhat = epMeta.Paused ? "Paused" :
+        DoingWhat = GetDoingWhatText();
-            Done ? (epMeta.DownloadProgress.Doing != string.Empty ? epMeta.DownloadProgress.Doing : "Done") :
-            epMeta.DownloadProgress.Doing != string.Empty ? epMeta.DownloadProgress.Doing : "Waiting";
 
         InfoText = JoinWithSeparator(
             GetDubString(),
@@ -210,11 +216,12 @@ public partial class DownloadItemModel : INotifyPropertyChanged{
             epMeta.Resolution
         );
         InfoTextHover = epMeta.AvailableQualities;
-        Error = epMeta.DownloadProgress.Error;
+        Error = epMeta.DownloadProgress.IsError;
 
 
         if (PropertyChanged != null){
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(isDownloading)));
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(ShowPauseIcon)));
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Percent)));
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Time)));
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(DownloadSpeed)));
@@ -228,28 +235,90 @@ public partial class DownloadItemModel : INotifyPropertyChanged{
 
     public event PropertyChangedEventHandler? PropertyChanged;
 
+    private string GetDoingWhatText(){
+        if (epMeta.DownloadProgress.IsWaitingForRetry && epMeta.DownloadProgress.RetryAtUtc.HasValue){
+            return "Rate limited, retrying at " + epMeta.DownloadProgress.RetryAtUtc.Value
+                .ToLocalTime()
+                .ToString("T", CultureInfo.CurrentCulture);
+        }
+
+        return Paused ? "Paused" :
+            Done ? (epMeta.DownloadProgress.Doing != string.Empty ? epMeta.DownloadProgress.Doing : "Done") :
+            epMeta.DownloadProgress.Doing != string.Empty ? epMeta.DownloadProgress.Doing : "Waiting";
+    }
+
+    private string GetTimeText(){
+        if (epMeta.DownloadProgress.IsWaitingForRetry && epMeta.DownloadProgress.RetryAtUtc.HasValue){
+            return string.Empty;
+        }
+
+        return "Estimated Time: " + TimeSpan.FromSeconds(epMeta.DownloadProgress.Time).ToString(@"hh\:mm\:ss");
+    }
+
+    private string GetDownloadSpeedText(){
+        if (epMeta.DownloadProgress.IsWaitingForRetry){
+            return string.Empty;
+        }
+
+        return CrunchyrollManager.Instance.CrunOptions.DownloadSpeedInBits
+            ? $"{epMeta.DownloadProgress.DownloadSpeedBytes * 8 / 1000000.0:F2} Mb/s"
+            : $"{epMeta.DownloadProgress.DownloadSpeedBytes / 1000000.0:F2} MB/s";
+    }
+
     [RelayCommand]
     public void ToggleIsDownloading(){
-        if (isDownloading){
+        if (epMeta.DownloadProgress.State is DownloadState.Downloading or DownloadState.Processing){
-            //StopDownload();
+            epMeta.DownloadProgress.ResumeState = epMeta.DownloadProgress.State;
-            epMeta.Paused = !epMeta.Paused;
+            epMeta.DownloadProgress.State = DownloadState.Paused;
+            isDownloading = false;
+            Paused = true;
+            ShowPauseIcon = false;
 
-            Paused = epMeta.Paused || !isDownloading && !epMeta.Paused;
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(isDownloading)));
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Paused)));
-        } else{
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(ShowPauseIcon)));
-            if (epMeta.Paused){
+
-                epMeta.Paused = false;
+            QueueManager.Instance.ReleaseDownloadSlot(epMeta);
-                Paused = epMeta.Paused || !isDownloading && !epMeta.Paused;
+            QueueManager.Instance.RefreshQueue();
+            return;
+        }
+
+        if (epMeta.DownloadProgress.IsPaused){
+            if (!QueueManager.Instance.TryResumeDownload(epMeta))
+                return;
+
+            epMeta.DownloadProgress.State = epMeta.DownloadProgress.ResumeState;
+            isDownloading = epMeta.DownloadProgress.State is DownloadState.Downloading or DownloadState.Processing;
+            Paused = false;
+            ShowPauseIcon = isDownloading;
+
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(isDownloading)));
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Paused)));
-            } else{
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(ShowPauseIcon)));
+            return;
+        }
+
         StartDownload();
     }
-        }
     
+    [RelayCommand]
+    public void RetryDownload(){
+        epMeta.DownloadProgress.ResetForRetry();
+        isDownloading = false;
+        Paused = false;
+        ShowPauseIcon = false;
 
-        if (PropertyChanged != null){
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Paused)));
-            PropertyChanged.Invoke(this, new PropertyChangedEventArgs("isDownloading"));
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(isDownloading)));
-        }
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(ShowPauseIcon)));
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Error)));
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Percent)));
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Time)));
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(DownloadSpeed)));
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(DoingWhat)));
+
+        QueueManager.Instance.RefreshQueue();
+        StartDownload();
     }
 
     public Task StartDownload(){
@@ -261,28 +330,34 @@ public partial class DownloadItemModel : INotifyPropertyChanged{
         if (isDownloading)
             return;
 
+        epMeta.RenewCancellationToken();
         isDownloading = true;
-        epMeta.DownloadProgress.IsDownloading = true;
+        epMeta.DownloadProgress.State = DownloadState.Downloading;
+        Paused = false;
+        ShowPauseIcon = true;
 
-        Paused = epMeta.Paused;
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(isDownloading)));
         PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Paused)));
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(ShowPauseIcon)));
 
         CrDownloadOptions? newOptions = Helpers.DeepCopy(CrunchyrollManager.Instance.CrunOptions);
 
         if (epMeta.OnlySubs){
-            newOptions.Novids = true;
+            newOptions?.Novids = true;
-            newOptions.Noaudio = true;
+            newOptions?.Noaudio = true;
         }
 
-        await CrunchyrollManager.Instance.DownloadEpisode(epMeta, epMeta.DownloadSettings ?? newOptions);
+        await CrunchyrollManager.Instance.DownloadEpisode(
+            epMeta,
+            epMeta.DownloadSettings ?? newOptions ?? CrunchyrollManager.Instance.CrunOptions);
     }
 
     [RelayCommand]
     public void RemoveFromQueue(){
         CrunchyEpMeta? downloadItem = QueueManager.Instance.Queue.FirstOrDefault(e => e.Equals(epMeta)) ?? null;
         if (downloadItem != null){
-            QueueManager.Instance.Queue.Remove(downloadItem);
+            QueueManager.Instance.RemoveFromQueue(downloadItem);
-            epMeta.Cts.Cancel();
+            epMeta.CancelDownload();
             if (!Done){
                 foreach (var downloadItemDownloadedFile in downloadItem.downloadedFiles){
                     try{

CRD/ViewModels/HistoryPageViewModel.cs

@@ -87,6 +87,9 @@ public partial class HistoryPageViewModel : ViewModelBase{
     [ObservableProperty]
     private bool _showArtists;
 
+    [ObservableProperty]
+    private bool _showMovies = true;
+
     [ObservableProperty]
     private static bool _viewSelectionOpen;
 
@@ -160,6 +163,7 @@ public partial class HistoryPageViewModel : ViewModelBase{
         SortDir = properties?.Ascending ?? false;
         ShowSeries = properties?.ShowSeries ?? true;
         ShowArtists = properties?.ShowArtists ?? false;
+        ShowMovies = properties?.ShowMovies ?? true;
 
         foreach (HistoryViewType viewType in Enum.GetValues(typeof(HistoryViewType))){
             var combobox = new ComboBoxItem{ Content = viewType };
@@ -274,6 +278,14 @@ public partial class HistoryPageViewModel : ViewModelBase{
         ApplyFilter();
     }
 
+    partial void OnShowMoviesChanged(bool value){
+        if (CrunchyrollManager.Instance.CrunOptions.HistoryPageProperties != null) CrunchyrollManager.Instance.CrunOptions.HistoryPageProperties.ShowMovies = ShowMovies;
+
+        CfgManager.WriteCrSettings();
+
+        ApplyFilter();
+    }
+
 
     partial void OnSelectedFilterChanged(FilterListElement? value){
         if (value == null){
@@ -333,6 +345,10 @@ public partial class HistoryPageViewModel : ViewModelBase{
             filteredItems.RemoveAll(item => item.SeriesType == SeriesType.Series);
         }
 
+        if (!ShowMovies){
+            filteredItems.RemoveAll(item => item.SeriesType == SeriesType.Movie);
+        }
+
         if (!string.IsNullOrWhiteSpace(SearchInput)){
             var tokens = SearchInput
                 .Split(' ', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
@@ -662,6 +678,7 @@ public class HistoryPageProperties{
 
     public bool ShowSeries{ get; set; } = true;
     public bool ShowArtists{ get; set; } = true;
+    public bool ShowMovies{ get; set; } = true;
 }
 
 public class SeasonsPageProperties{

CRD/ViewModels/Utils/ContentDialogEncodingPresetViewModel.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.ObjectModel;
+using System.Collections.Specialized;
 using System.IO;
 using System.Linq;
 using Avalonia.Controls;
@@ -7,6 +8,7 @@ using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using CRD.Utils.Ffmpeg_Encoding;
 using CRD.Utils.Files;
+using CRD.Utils;
 using CRD.Utils.Structs;
 using CRD.Views;
 using DynamicData;
@@ -19,61 +21,84 @@ public partial class ContentDialogEncodingPresetViewModel : ViewModelBase{
     private readonly ContentDialog dialog;
 
     [ObservableProperty]
-    private bool _editMode;
+    private bool editMode;
 
     [ObservableProperty]
-    private string _presetName;
+    [NotifyPropertyChangedFor(nameof(CommandPreview))]
+    private string presetName;
 
     [ObservableProperty]
-    private string _codec;
+    [NotifyPropertyChangedFor(nameof(HasCodec))]
+    [NotifyPropertyChangedFor(nameof(CommandPreview))]
+    private string codec;
 
     [ObservableProperty]
-    private ComboBoxItem _selectedResolution = new();
+    [NotifyPropertyChangedFor(nameof(CommandPreview))]
+    private StringItemWithDisplayName selectedResolution = new(){ value = "1920:1080", DisplayName = "1080p exact (1920:1080)" };
 
     [ObservableProperty]
-    private double? _crf = 23;
+    [NotifyPropertyChangedFor(nameof(CommandPreview))]
+    private double? crf = 23;
 
     [ObservableProperty]
-    private string _frameRate = "";
+    [NotifyPropertyChangedFor(nameof(CommandPreview))]
+    private string frameRate = "";
 
     [ObservableProperty]
-    private string _additionalParametersString = "";
+    [NotifyPropertyChangedFor(nameof(CommandPreview))]
+    private string additionalParametersString = "";
 
     [ObservableProperty]
-    private ObservableCollection<StringItem> _additionalParameters = new();
+    [NotifyPropertyChangedFor(nameof(CommandPreview))]
+    private ObservableCollection<StringItem> additionalParameters = new();
 
     [ObservableProperty]
-    private VideoPreset? _selectedCustomPreset;
+    private VideoPreset? selectedCustomPreset;
 
     [ObservableProperty]
-    private bool _fileExists;
+    private bool fileExists;
+
+    public bool HasCodec => !string.IsNullOrWhiteSpace(Codec);
+    public string CommandPreview => BuildCommandPreview();
 
     public ObservableCollection<VideoPreset> CustomPresetsList{ get; } = new(){ };
 
-    public ObservableCollection<ComboBoxItem> ResolutionList{ get; } = new(){
+    public ObservableCollection<StringItemWithDisplayName> ResolutionList{ get; } = new(){
-        new ComboBoxItem(){ Content = "3840:2160" }, // 4K UHD
+        new(){ value = "3840:2160", DisplayName = "4K exact (3840:2160)" },
-        new ComboBoxItem(){ Content = "3440:1440" }, // Ultra-Wide Quad HD
+        new(){ value = "-2:2160", DisplayName = "4K keep AR (-2:2160)" },
-        new ComboBoxItem(){ Content = "2560:1440" }, // 1440p
+        new(){ value = "3440:1440", DisplayName = "UWQHD exact (3440:1440)" },
-        new ComboBoxItem(){ Content = "2560:1080" }, // Ultra-Wide Full HD
+        new(){ value = "2560:1440", DisplayName = "1440p exact (2560:1440)" },
-        new ComboBoxItem(){ Content = "2160:1080" }, // 2:1 Aspect Ratio
+        new(){ value = "-2:1440", DisplayName = "1440p keep AR (-2:1440)" },
-        new ComboBoxItem(){ Content = "1920:1080" }, // 1080p Full HD
+        new(){ value = "2560:1080", DisplayName = "UW FHD exact (2560:1080)" },
-        new ComboBoxItem(){ Content = "1920:800" }, // Cinematic 2.40:1
+        new(){ value = "2160:1080", DisplayName = "2:1 exact (2160:1080)" },
-        new ComboBoxItem(){ Content = "1600:900" }, // 900p
+        new(){ value = "1920:1080", DisplayName = "1080p exact (1920:1080)" },
-        new ComboBoxItem(){ Content = "1366:768" }, // 768p
+        new(){ value = "-2:1080", DisplayName = "1080p keep AR (-2:1080)" },
-        new ComboBoxItem(){ Content = "1280:960" }, // SXGA 4:3
+        new(){ value = "1920:800", DisplayName = "Cinema exact (1920:800)" },
-        new ComboBoxItem(){ Content = "1280:720" }, // 720p HD
+        new(){ value = "1600:900", DisplayName = "900p exact (1600:900)" },
-        new ComboBoxItem(){ Content = "1024:576" }, // 576p
+        new(){ value = "1366:768", DisplayName = "768p exact (1366:768)" },
-        new ComboBoxItem(){ Content = "960:540" }, // 540p qHD
+        new(){ value = "1280:960", DisplayName = "SXGA exact (1280:960)" },
-        new ComboBoxItem(){ Content = "854:480" }, // 480p
+        new(){ value = "1280:720", DisplayName = "720p exact (1280:720)" },
-        new ComboBoxItem(){ Content = "800:600" }, // SVGA
+        new(){ value = "-2:720", DisplayName = "720p keep AR (-2:720)" },
-        new ComboBoxItem(){ Content = "768:432" }, // 432p
+        new(){ value = "1024:576", DisplayName = "576p exact (1024:576)" },
-        new ComboBoxItem(){ Content = "720:480" }, // NTSC SD
+        new(){ value = "-2:576", DisplayName = "576p keep AR (-2:576)" },
-        new ComboBoxItem(){ Content = "704:576" }, // PAL SD
+        new(){ value = "960:540", DisplayName = "540p exact (960:540)" },
-        new ComboBoxItem(){ Content = "640:360" }, // 360p
+        new(){ value = "-2:540", DisplayName = "540p keep AR (-2:540)" },
-        new ComboBoxItem(){ Content = "426:240" }, // 240p
+        new(){ value = "854:480", DisplayName = "480p exact (854:480)" },
-        new ComboBoxItem(){ Content = "320:240" }, // QVGA
+        new(){ value = "-2:480", DisplayName = "480p keep AR (-2:480)" },
-        new ComboBoxItem(){ Content = "320:180" }, // 180p
+        new(){ value = "800:600", DisplayName = "SVGA exact (800:600)" },
-        new ComboBoxItem(){ Content = "256:144" }, // 144p
+        new(){ value = "768:432", DisplayName = "432p exact (768:432)" },
+        new(){ value = "-2:432", DisplayName = "432p keep AR (-2:432)" },
+        new(){ value = "720:480", DisplayName = "NTSC exact (720:480)" },
+        new(){ value = "704:576", DisplayName = "PAL exact (704:576)" },
+        new(){ value = "640:360", DisplayName = "360p exact (640:360)" },
+        new(){ value = "-2:360", DisplayName = "360p keep AR (-2:360)" },
+        new(){ value = "426:240", DisplayName = "240p exact (426:240)" },
+        new(){ value = "-2:240", DisplayName = "240p keep AR (-2:240)" },
+        new(){ value = "320:240", DisplayName = "QVGA exact (320:240)" },
+        new(){ value = "320:180", DisplayName = "180p exact (320:180)" },
+        new(){ value = "-2:180", DisplayName = "180p keep AR (-2:180)" },
+        new(){ value = "256:144", DisplayName = "144p exact (256:144)" },
+        new(){ value = "-2:144", DisplayName = "144p keep AR (-2:144)" },
     };
 
     public ContentDialogEncodingPresetViewModel(ContentDialog dialog, bool editMode){
@@ -84,6 +109,7 @@ public partial class ContentDialogEncodingPresetViewModel : ViewModelBase{
         }
         
         AdditionalParameters.Add(new StringItem(){ stringValue = "-map 0" });
+        AdditionalParameters.CollectionChanged += AdditionalParametersOnCollectionChanged;
 
         if (editMode){
             EditMode = true;
@@ -108,9 +134,9 @@ public partial class ContentDialogEncodingPresetViewModel : ViewModelBase{
         PresetName = value.PresetName ?? "";
         Codec = value.Codec ?? "";
         Crf = value.Crf;
-        FrameRate = value.FrameRate ?? "24";
+        FrameRate = value.FrameRate ?? "24000/1001";
 
-        SelectedResolution = ResolutionList.FirstOrDefault(e => e.Content?.ToString() == value.Resolution) ?? ResolutionList.First();
+        SelectedResolution = ResolutionList.FirstOrDefault(e => e.value == value.Resolution) ?? ResolutionList.First();
         AdditionalParameters.Clear();
 
         foreach (var valueAdditionalParameter in value.AdditionalParameters){
@@ -133,13 +159,36 @@ public partial class ContentDialogEncodingPresetViewModel : ViewModelBase{
     public void AddAdditionalParam(){
         AdditionalParameters.Add(new StringItem(){ stringValue = AdditionalParametersString });
         AdditionalParametersString = "";
-        RaisePropertyChanged(nameof(AdditionalParametersString));
     }
 
     [RelayCommand]
     public void RemoveAdditionalParam(StringItem param){
         AdditionalParameters.Remove(param);
-        RaisePropertyChanged(nameof(AdditionalParameters));
+    }
+
+    private void AdditionalParametersOnCollectionChanged(object? sender, NotifyCollectionChangedEventArgs e){
+        OnPropertyChanged(nameof(CommandPreview));
+    }
+
+    private string BuildCommandPreview(){
+        var previewPreset = new VideoPreset{
+            PresetName = PresetName,
+            Codec = Codec,
+            FrameRate = string.IsNullOrWhiteSpace(FrameRate) ? "24000/1001" : FrameRate,
+            Crf = Math.Clamp((int)(Crf ?? 0), 0, 51),
+            Resolution = SelectedResolution.value,
+            AdditionalParameters = AdditionalParameters
+                .Select(additionalParameter => additionalParameter.stringValue)
+                .Where(static value => !string.IsNullOrWhiteSpace(value))
+                .ToList()
+        };
+
+        var args = Helpers.BuildFFmpegArgsForPreset(
+            "S01E01.mkv",
+            previewPreset,
+            "S01E01_output.mkv");
+
+        return Helpers.BuildCommandString("ffmpeg", args);
     }
 
     private void SaveButton(ContentDialog sender, ContentDialogButtonClickEventArgs args){
@@ -153,7 +202,7 @@ public partial class ContentDialogEncodingPresetViewModel : ViewModelBase{
                 SelectedCustomPreset.Codec = Codec;
                 SelectedCustomPreset.FrameRate = FrameRate;
                 SelectedCustomPreset.Crf = Math.Clamp((int)(Crf ?? 0), 0, 51);
-                SelectedCustomPreset.Resolution = SelectedResolution.Content?.ToString() ?? "1920:1080";
+                SelectedCustomPreset.Resolution = SelectedResolution.value;
                 SelectedCustomPreset.AdditionalParameters = AdditionalParameters.Select(additionalParameter => additionalParameter.stringValue).ToList();
 
                 try{
@@ -175,7 +224,7 @@ public partial class ContentDialogEncodingPresetViewModel : ViewModelBase{
                 Codec = Codec,
                 FrameRate = FrameRate,
                 Crf = Math.Clamp((int)(Crf ?? 0), 0, 51),
-                Resolution = SelectedResolution.Content?.ToString() ?? "1920:1080",
+                Resolution = SelectedResolution.value,
                 AdditionalParameters = AdditionalParameters.Select(additionalParameter => additionalParameter.stringValue).ToList()
             };
 
@@ -186,6 +235,7 @@ public partial class ContentDialogEncodingPresetViewModel : ViewModelBase{
     }
 
     private void DialogOnClosed(ContentDialog sender, ContentDialogClosedEventArgs args){
+        AdditionalParameters.CollectionChanged -= AdditionalParametersOnCollectionChanged;
         dialog.Closed -= DialogOnClosed;
     }
 }

CRD/ViewModels/Utils/GeneralSettingsViewModel.cs

@@ -20,15 +20,20 @@ using CRD.Downloader.Crunchyroll;
 using CRD.Utils;
 using CRD.Utils.Files;
 using CRD.Utils.Http;
+using CRD.Utils.Notifications;
 using CRD.Utils.Sonarr;
 using CRD.Utils.Structs;
 using CRD.Utils.Structs.Crunchyroll;
 using CRD.Utils.Structs.History;
+using CRD.Views;
 using FluentAvalonia.Styling;
+using ReactiveUI;
 
 namespace CRD.ViewModels.Utils;
 
 public partial class GeneralSettingsViewModel : ViewModelBase{
+    private readonly AudioPlayer notificationTestPlayer = new();
+
     [ObservableProperty]
     private string currentVersion;
 
@@ -44,6 +49,9 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
     [ObservableProperty]
     private bool historyIncludeCrArtists;
     
+    [ObservableProperty]
+    private bool historyRemoveMissingEpisodes;
+
     [ObservableProperty]
     private bool historyAddSpecials;
 
@@ -59,6 +67,9 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
     [ObservableProperty]
     private HistoryRefreshMode historyAutoRefreshMode;
 
+    [ObservableProperty]
+    private bool historyAutoRefreshAddToQueue;
+
     [ObservableProperty]
     private string historyAutoRefreshModeHint;
     
@@ -86,6 +97,9 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
     [ObservableProperty]
     private bool downloadAllowEarlyStart;
 
+    [ObservableProperty]
+    private bool persistQueue;
+
     [ObservableProperty]
     private double? downloadSpeed;
     
@@ -98,6 +112,12 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
     [ObservableProperty]
     private double? retryDelay;
 
+    [ObservableProperty]
+    private double? playbackRateLimitRetryDelaySeconds;
+
+    [ObservableProperty]
+    private double? retryMaxDelaySeconds;
+    
     [ObservableProperty]
     private bool trayIconEnabled;
     
@@ -285,9 +305,51 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
     [ObservableProperty]
     private string downloadFinishedExecutePath;
 
+    [ObservableProperty]
+    private bool webhookEnabled;
+
+    [ObservableProperty]
+    private string webhookUrl = string.Empty;
+
+    [ObservableProperty]
+    private string webhookMethod = "POST";
+
+    [ObservableProperty]
+    private string webhookContentType = "application/json";
+
+    [ObservableProperty]
+    private string webhookHeadersText = string.Empty;
+
+    [ObservableProperty]
+    private string webhookBodyTemplate = string.Empty;
+
+    [ObservableProperty]
+    private bool webhookNotifyQueueFinished;
+
+    [ObservableProperty]
+    private bool webhookNotifyDownloadFinished;
+
+    [ObservableProperty]
+    private bool webhookNotifyDownloadFailed;
+
+    [ObservableProperty]
+    private bool webhookNotifyTrackedSeriesEpisodeReleased;
+
+    [ObservableProperty]
+    private bool webhookNotifyLoginExpired;
+
+    [ObservableProperty]
+    private bool webhookNotifyUpdateAvailable;
+
     [ObservableProperty]
     private string currentIp = "";
 
+    [ObservableProperty]
+    private bool isTestingFinishedSound;
+
+    [ObservableProperty]
+    private bool isTestingWebhook;
+
     private readonly FluentAvaloniaTheme faTheme;
 
     private bool settingsLoaded;
@@ -312,16 +374,29 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
         }
 
         CrDownloadOptions options = CrunchyrollManager.Instance.CrunOptions;
+        options.NormalizeNotificationSettings();
 
         BackgroundImageBlurRadius = options.BackgroundImageBlurRadius;
         BackgroundImageOpacity = options.BackgroundImageOpacity;
         BackgroundImagePath = options.BackgroundImagePath ?? string.Empty;
 
-        DownloadFinishedSoundPath = options.DownloadFinishedSoundPath ?? string.Empty;
+        var soundProvider = options.NotificationSettings?.GetOrCreateProvider(NotificationProviderType.Sound);
-        DownloadFinishedPlaySound = options.DownloadFinishedPlaySound;
+        DownloadFinishedSoundPath = soundProvider?.Path ?? string.Empty;
+        DownloadFinishedPlaySound = soundProvider?.Enabled ?? false;
         
-        DownloadFinishedExecutePath = options.DownloadFinishedExecutePath ?? string.Empty;
+        var executeProvider = options.NotificationSettings?.GetOrCreateProvider(NotificationProviderType.Execute);
-        DownloadFinishedExecute = options.DownloadFinishedExecute;
+        DownloadFinishedExecutePath = executeProvider?.Path ?? string.Empty;
+        DownloadFinishedExecute = executeProvider?.Enabled ?? false;
+
+        var webhookProvider = options.NotificationSettings?.GetOrCreateProvider(NotificationProviderType.Webhook);
+        WebhookEnabled = webhookProvider?.Enabled ?? false;
+        WebhookUrl = webhookProvider?.Url ?? string.Empty;
+        WebhookMethod = string.IsNullOrWhiteSpace(webhookProvider?.Method) ? "POST" : webhookProvider.Method;
+        WebhookContentType = string.IsNullOrWhiteSpace(webhookProvider?.ContentType) ? "application/json" : webhookProvider.ContentType;
+        WebhookHeadersText = SerializeHeaders(webhookProvider?.Headers);
+        WebhookBodyTemplate = webhookProvider?.BodyTemplate ?? string.Empty;
+
+        LoadProviderEvents(webhookProvider, NotificationProviderType.Webhook);
 
         DownloadDirPath = string.IsNullOrEmpty(options.DownloadDirPath) ? CfgManager.PathVIDEOS_DIR : options.DownloadDirPath;
         TempDownloadDirPath = string.IsNullOrEmpty(options.DownloadTempDirPath) ? CfgManager.PathTEMP_DIR : options.DownloadTempDirPath;
@@ -365,19 +440,24 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
         ProxyPort = options.ProxyPort;
         HistoryCountMissing = options.HistoryCountMissing;
         HistoryIncludeCrArtists = options.HistoryIncludeCrArtists;
+        HistoryRemoveMissingEpisodes = options.HistoryRemoveMissingEpisodes;
         HistoryAddSpecials = options.HistoryAddSpecials;
         HistorySkipUnmonitored = options.HistorySkipUnmonitored;
         HistoryCountSonarr = options.HistoryCountSonarr;
         HistoryAutoRefreshIntervalMinutes = options.HistoryAutoRefreshIntervalMinutes;
         HistoryAutoRefreshMode = options.HistoryAutoRefreshMode;
+        HistoryAutoRefreshAddToQueue = options.HistoryAutoRefreshAddToQueue;
         HistoryAutoRefreshLastRunTime = ProgramManager.Instance.GetLastRefreshTime() == DateTime.MinValue ? "Never" : ProgramManager.Instance.GetLastRefreshTime().ToString("g", CultureInfo.CurrentCulture);
         DownloadSpeed = options.DownloadSpeedLimit;
         DownloadSpeedInBits = options.DownloadSpeedInBits;
         DownloadMethodeNew = options.DownloadMethodeNew;
         DownloadAllowEarlyStart = options.DownloadAllowEarlyStart;
         DownloadOnlyWithAllSelectedDubSub = options.DownloadOnlyWithAllSelectedDubSub;
+        PersistQueue = options.PersistQueue;
         RetryAttempts = Math.Clamp((options.RetryAttempts), 1, 10);
         RetryDelay = Math.Clamp((options.RetryDelay), 1, 30);
+        PlaybackRateLimitRetryDelaySeconds = Math.Clamp(options.PlaybackRateLimitRetryDelaySeconds, 1, 86400);
+        RetryMaxDelaySeconds = Math.Clamp(options.RetryMaxDelaySeconds, 1, 86400);
         DownloadToTempFolder = options.DownloadToTempFolder;
         SimultaneousDownloads = options.SimultaneousDownloads;
         SimultaneousProcessingJobs = options.SimultaneousProcessingJobs;
@@ -417,34 +497,65 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
 
         var settings = CrunchyrollManager.Instance.CrunOptions;
 
-        settings.DownloadFinishedPlaySound = DownloadFinishedPlaySound;
+        settings.NotificationSettings ??= new NotificationSettings();
 
-        settings.DownloadFinishedExecute = DownloadFinishedExecute;
+        var soundProvider = settings.NotificationSettings.GetOrCreateProvider(NotificationProviderType.Sound);
+        soundProvider.Enabled = DownloadFinishedPlaySound;
+        soundProvider.Path = DownloadFinishedSoundPath;
+        soundProvider.Events = [NotificationEventType.QueueFinished];
+
+        var executeProvider = settings.NotificationSettings.GetOrCreateProvider(NotificationProviderType.Execute);
+        executeProvider.Enabled = DownloadFinishedExecute;
+        executeProvider.Path = DownloadFinishedExecutePath;
+        executeProvider.Events = [NotificationEventType.QueueFinished];
+
+        var webhookProvider = settings.NotificationSettings.GetOrCreateProvider(NotificationProviderType.Webhook);
+        webhookProvider.Enabled = WebhookEnabled;
+        webhookProvider.Url = WebhookUrl?.Trim() ?? string.Empty;
+        webhookProvider.Method = string.IsNullOrWhiteSpace(WebhookMethod) ? "POST" : WebhookMethod.Trim().ToUpperInvariant();
+        webhookProvider.ContentType = string.IsNullOrWhiteSpace(WebhookContentType) ? "application/json" : WebhookContentType.Trim();
+        webhookProvider.Headers = ParseHeaders(WebhookHeadersText);
+        webhookProvider.BodyTemplate = WebhookBodyTemplate ?? string.Empty;
+        webhookProvider.Events = BuildEvents(
+            WebhookNotifyQueueFinished,
+            WebhookNotifyDownloadFinished,
+            WebhookNotifyDownloadFailed,
+            WebhookNotifyTrackedSeriesEpisodeReleased,
+            WebhookNotifyLoginExpired,
+            WebhookNotifyUpdateAvailable
+        );
+
+        settings.SyncLegacyNotificationFields();
 
         settings.DownloadMethodeNew = DownloadMethodeNew;
         settings.DownloadAllowEarlyStart = DownloadAllowEarlyStart;
         settings.DownloadOnlyWithAllSelectedDubSub = DownloadOnlyWithAllSelectedDubSub;
+        settings.PersistQueue = PersistQueue;
 
         settings.BackgroundImageBlurRadius = Math.Clamp((BackgroundImageBlurRadius ?? 0), 0, 40);
         settings.BackgroundImageOpacity = Math.Clamp((BackgroundImageOpacity ?? 0), 0, 1);
 
         settings.RetryAttempts = Math.Clamp((int)(RetryAttempts ?? 0), 1, 10);
         settings.RetryDelay = Math.Clamp((int)(RetryDelay ?? 0), 1, 30);
+        settings.PlaybackRateLimitRetryDelaySeconds = Math.Clamp((int)(PlaybackRateLimitRetryDelaySeconds ?? 0), 1, 86400);
+        settings.RetryMaxDelaySeconds = Math.Clamp((int)(RetryMaxDelaySeconds ?? 0), 1, 86400);
 
         settings.DownloadToTempFolder = DownloadToTempFolder;
         settings.HistoryCountMissing = HistoryCountMissing;
         settings.HistoryAddSpecials = HistoryAddSpecials;
         settings.HistoryIncludeCrArtists = HistoryIncludeCrArtists;
+        settings.HistoryRemoveMissingEpisodes = HistoryRemoveMissingEpisodes;
         settings.HistorySkipUnmonitored = HistorySkipUnmonitored;
         settings.HistoryCountSonarr = HistoryCountSonarr;
         settings.HistoryAutoRefreshIntervalMinutes =Math.Clamp((int)(HistoryAutoRefreshIntervalMinutes ?? 0), 0, 1000000000) ;
         settings.HistoryAutoRefreshMode = HistoryAutoRefreshMode;
+        settings.HistoryAutoRefreshAddToQueue = HistoryAutoRefreshAddToQueue;
         settings.DownloadSpeedLimit = Math.Clamp((int)(DownloadSpeed ?? 0), 0, 1000000000);
         settings.DownloadSpeedInBits = DownloadSpeedInBits;
         settings.SimultaneousDownloads = Math.Clamp((int)(SimultaneousDownloads ?? 0), 1, 10);
         settings.SimultaneousProcessingJobs = Math.Clamp((int)(SimultaneousProcessingJobs ?? 0), 1, 10);
 
-        QueueManager.Instance.SetLimit(settings.SimultaneousProcessingJobs);
+        QueueManager.Instance.SetProcessingLimit(settings.SimultaneousProcessingJobs);
 
         settings.ProxyEnabled = ProxyEnabled;
         settings.ProxySocks = ProxySocks;
@@ -519,6 +630,10 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
         settings.LogMode = LogMode;
 
         CfgManager.WriteCrSettings();
+
+        if (!PersistQueue){
+            QueueManager.Instance.SaveQueueSnapshot();
+        }
     }
 
     [RelayCommand]
@@ -613,7 +728,10 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
 
     [RelayCommand]
     public void ClearFinishedSoundPath(){
-        CrunchyrollManager.Instance.CrunOptions.DownloadFinishedSoundPath = string.Empty;
+        var settings = CrunchyrollManager.Instance.CrunOptions;
+        settings.NotificationSettings ??= new NotificationSettings();
+        settings.NotificationSettings.GetOrCreateProvider(NotificationProviderType.Sound).Path = string.Empty;
+        settings.SyncLegacyNotificationFields();
         DownloadFinishedSoundPath = string.Empty;
     }
 
@@ -627,21 +745,131 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
                 }
             },
             pathSetter: (path) => {
-                CrunchyrollManager.Instance.CrunOptions.DownloadFinishedSoundPath = path;
+                var validationResult = AudioPlayer.ValidateSoundFile(path);
+                if (!validationResult.IsValid){
+                    MessageBus.Current.SendMessage(new ToastMessage(validationResult.ErrorMessage, ToastType.Error, 5));
+                    return;
+                }
+
+                var settings = CrunchyrollManager.Instance.CrunOptions;
+                settings.NotificationSettings ??= new NotificationSettings();
+                settings.NotificationSettings.GetOrCreateProvider(NotificationProviderType.Sound).Path = path;
+                settings.SyncLegacyNotificationFields();
                 DownloadFinishedSoundPath = path;
+                MessageBus.Current.SendMessage(new ToastMessage("Notification sound updated", ToastType.Information, 2));
             },
-            pathGetter: () => CrunchyrollManager.Instance.CrunOptions.DownloadFinishedSoundPath ?? string.Empty,
+            pathGetter: () => CrunchyrollManager.Instance.CrunOptions.NotificationSettings?.GetOrCreateProvider(NotificationProviderType.Sound).Path ?? string.Empty,
             defaultPath: string.Empty
         );
     }
 
+    [RelayCommand]
+    public async Task TestFinishedSoundAsync(){
+        if (IsTestingFinishedSound){
+            return;
+        }
+
+        var path = CrunchyrollManager.Instance.CrunOptions.NotificationSettings?.GetOrCreateProvider(NotificationProviderType.Sound).Path ?? string.Empty;
+        IsTestingFinishedSound = true;
+
+        try{
+            var result = await notificationTestPlayer.ValidatePlaybackAsync(path);
+
+            if (result.IsSuccess){
+                MessageBus.Current.SendMessage(new ToastMessage("Notification sound test succeeded", ToastType.Information, 2));
+                return;
+            }
+
+            MessageBus.Current.SendMessage(new ToastMessage($"Notification sound test failed: {result.ErrorMessage}", ToastType.Error, 5));
+        } finally{
+            IsTestingFinishedSound = false;
+        }
+    }
+
+    [RelayCommand]
+    public async Task StopFinishedSoundAsync(){
+        await notificationTestPlayer.StopAsync();
+        IsTestingFinishedSound = false;
+    }
+
+    [RelayCommand]
+    public async Task TestWebhookAsync(){
+        if (IsTestingWebhook){
+            return;
+        }
+
+        var selectedEvents = BuildEvents(
+            WebhookNotifyQueueFinished,
+            WebhookNotifyDownloadFinished,
+            WebhookNotifyDownloadFailed,
+            WebhookNotifyTrackedSeriesEpisodeReleased,
+            WebhookNotifyLoginExpired,
+            WebhookNotifyUpdateAvailable
+        );
+
+        if (!WebhookEnabled){
+            MessageBus.Current.SendMessage(new ToastMessage("Enable the webhook first", ToastType.Error, 4));
+            return;
+        }
+
+        if (string.IsNullOrWhiteSpace(WebhookUrl)){
+            MessageBus.Current.SendMessage(new ToastMessage("Set a webhook URL first", ToastType.Error, 4));
+            return;
+        }
+
+        if (selectedEvents.Count == 0){
+            MessageBus.Current.SendMessage(new ToastMessage("Select at least one webhook event to test", ToastType.Error, 4));
+            return;
+        }
+
+        IsTestingWebhook = true;
+
+        try{
+            var settings = new NotificationSettings{
+                Providers = [
+                    new NotificationProviderConfig{
+                        Type = NotificationProviderType.Webhook,
+                        Enabled = true,
+                        Url = WebhookUrl.Trim(),
+                        Method = string.IsNullOrWhiteSpace(WebhookMethod) ? "POST" : WebhookMethod.Trim().ToUpperInvariant(),
+                        ContentType = string.IsNullOrWhiteSpace(WebhookContentType) ? "application/json" : WebhookContentType.Trim(),
+                        Headers = ParseHeaders(WebhookHeadersText),
+                        BodyTemplate = WebhookBodyTemplate ?? string.Empty,
+                        Events = selectedEvents
+                    }
+                ]
+            };
+
+            var sentCount = 0;
+
+            foreach (var notificationEvent in BuildTestWebhookEvents(selectedEvents)){
+                if (await NotificationDispatcher.Instance.PublishWithResultAsync(settings, notificationEvent)){
+                    sentCount++;
+                }
+            }
+
+            if (sentCount == selectedEvents.Count){
+                MessageBus.Current.SendMessage(new ToastMessage($"Sent {sentCount} test webhook event(s)", ToastType.Information, 3));
+            } else if (sentCount > 0){
+                MessageBus.Current.SendMessage(new ToastMessage($"Sent {sentCount} of {selectedEvents.Count} test webhook event(s)", ToastType.Error, 5));
+            } else{
+                MessageBus.Current.SendMessage(new ToastMessage("Webhook test failed for all selected events", ToastType.Error, 5));
+            }
+        } finally{
+            IsTestingWebhook = false;
+        }
+    }
+
     #endregion
     
     #region Download Finished Execute File
 
     [RelayCommand]
     public void ClearFinishedExectuePath(){
-        CrunchyrollManager.Instance.CrunOptions.DownloadFinishedExecutePath = string.Empty;
+        var settings = CrunchyrollManager.Instance.CrunOptions;
+        settings.NotificationSettings ??= new NotificationSettings();
+        settings.NotificationSettings.GetOrCreateProvider(NotificationProviderType.Execute).Path = string.Empty;
+        settings.SyncLegacyNotificationFields();
         DownloadFinishedExecutePath = string.Empty;
     }
 
@@ -655,10 +883,13 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
                 }
             },
             pathSetter: (path) => {
-                CrunchyrollManager.Instance.CrunOptions.DownloadFinishedExecutePath = path;
+                var settings = CrunchyrollManager.Instance.CrunOptions;
+                settings.NotificationSettings ??= new NotificationSettings();
+                settings.NotificationSettings.GetOrCreateProvider(NotificationProviderType.Execute).Path = path;
+                settings.SyncLegacyNotificationFields();
                 DownloadFinishedExecutePath = path;
             },
-            pathGetter: () => CrunchyrollManager.Instance.CrunOptions.DownloadFinishedExecutePath ?? string.Empty,
+            pathGetter: () => CrunchyrollManager.Instance.CrunOptions.NotificationSettings?.GetOrCreateProvider(NotificationProviderType.Execute).Path ?? string.Empty,
             defaultPath: string.Empty
         );
     }
@@ -692,6 +923,189 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
         }
     }
 
+    private void LoadProviderEvents(NotificationProviderConfig? provider, NotificationProviderType type){
+        var events = provider?.Events ?? [];
+
+        switch (type){
+            case NotificationProviderType.Webhook:
+                WebhookNotifyQueueFinished = events.Contains(NotificationEventType.QueueFinished);
+                WebhookNotifyDownloadFinished = events.Contains(NotificationEventType.DownloadFinished);
+                WebhookNotifyDownloadFailed = events.Contains(NotificationEventType.DownloadFailed);
+                WebhookNotifyTrackedSeriesEpisodeReleased = events.Contains(NotificationEventType.TrackedSeriesEpisodeReleased);
+                WebhookNotifyLoginExpired = events.Contains(NotificationEventType.LoginExpired);
+                WebhookNotifyUpdateAvailable = events.Contains(NotificationEventType.UpdateAvailable);
+                break;
+            default:
+                throw new ArgumentOutOfRangeException(nameof(type), type, null);
+        }
+    }
+
+    private static List<NotificationEventType> BuildEvents(
+        bool queueFinished,
+        bool downloadFinished,
+        bool downloadFailed,
+        bool trackedSeriesEpisodeReleased,
+        bool loginExpired,
+        bool updateAvailable){
+        var events = new List<NotificationEventType>();
+
+        if (queueFinished){
+            events.Add(NotificationEventType.QueueFinished);
+        }
+
+        if (downloadFinished){
+            events.Add(NotificationEventType.DownloadFinished);
+        }
+
+        if (downloadFailed){
+            events.Add(NotificationEventType.DownloadFailed);
+        }
+
+        if (trackedSeriesEpisodeReleased){
+            events.Add(NotificationEventType.TrackedSeriesEpisodeReleased);
+        }
+
+        if (loginExpired){
+            events.Add(NotificationEventType.LoginExpired);
+        }
+
+        if (updateAvailable){
+            events.Add(NotificationEventType.UpdateAvailable);
+        }
+
+        return events;
+    }
+
+    private static IEnumerable<NotificationEvent> BuildTestWebhookEvents(IEnumerable<NotificationEventType> selectedEvents){
+        foreach (var eventType in selectedEvents.Distinct()){
+            yield return BuildTestWebhookEvent(eventType);
+        }
+    }
+
+    private static NotificationEvent BuildTestWebhookEvent(NotificationEventType eventType){
+        return eventType switch{
+            NotificationEventType.QueueFinished => new NotificationEvent{
+                Type = NotificationEventType.QueueFinished,
+                Title = "Downloads finished",
+                Message = "All queued downloads have finished processing.",
+                Metadata = []
+            },
+            NotificationEventType.DownloadFinished => new NotificationEvent{
+                Type = NotificationEventType.DownloadFinished,
+                Title = "Download finished",
+                Message = "Finished processing Example Series.",
+                Metadata = BuildTestDownloadMetadata()
+            },
+            NotificationEventType.DownloadFailed => new NotificationEvent{
+                Type = NotificationEventType.DownloadFailed,
+                Title = "Download failed",
+                Message = "Failed to download Example Series: Example failure message",
+                Metadata = BuildTestDownloadMetadata("Example failure message")
+            },
+            NotificationEventType.TrackedSeriesEpisodeReleased => new NotificationEvent{
+                Type = NotificationEventType.TrackedSeriesEpisodeReleased,
+                Title = "Tracked series episode released",
+                Message = "A tracked episode is available for Example Series: Episode Title.",
+                Metadata = new Dictionary<string, string>{
+                    ["seriesTitle"] = "Example Series",
+                    ["seriesId"] = "G6ABC1234",
+                    ["seasonId"] = "G6SEASON01",
+                    ["episodeTitle"] = "Episode Title",
+                    ["episodeId"] = "G6EP0001",
+                    ["episodeNumber"] = "1",
+                    ["seasonNumber"] = "1",
+                    ["releaseDate"] = DateTimeOffset.UtcNow.AddMinutes(-30).ToString("O"),
+                    ["premiumAvailableDate"] = DateTimeOffset.UtcNow.ToString("O"),
+                    ["episodeUrl"] = "https://www.crunchyroll.com/en-US/watch/G6EP0001/episode-title",
+                    ["imageUrl"] = "https://static.crunchyroll.com/example-thumbnail.jpg",
+                    ["description"] = "Example tracked-release description.",
+                    ["durationMs"] = "1440000",
+                    ["availableDubs"] = "en-US, ja-JP",
+                    ["availableSubs"] = "en-US, de-DE"
+                }
+            },
+            NotificationEventType.LoginExpired => new NotificationEvent{
+                Type = NotificationEventType.LoginExpired,
+                Title = "Crunchyroll login expired",
+                Message = "The saved Crunchyroll session could not be refreshed. Please log in again.",
+                Metadata = new Dictionary<string, string>{
+                    ["username"] = "example-user",
+                    ["endpoint"] = "/auth/v1/token"
+                }
+            },
+            NotificationEventType.UpdateAvailable => new NotificationEvent{
+                Type = NotificationEventType.UpdateAvailable,
+                Title = "Update available",
+                Message = "Version v9.9.9 is available. Current version: v1.0.0.",
+                Metadata = new Dictionary<string, string>{
+                    ["currentVersion"] = "v1.0.0",
+                    ["latestVersion"] = "v9.9.9",
+                    ["platform"] = "win-x64",
+                    ["downloadUrl"] = "https://github.com/Crunchy-DL/Crunchy-Downloader/releases/latest"
+                }
+            },
+            _ => throw new ArgumentOutOfRangeException(nameof(eventType), eventType, null)
+        };
+    }
+
+    private static Dictionary<string, string> BuildTestDownloadMetadata(string? error = null){
+        var metadata = new Dictionary<string, string>{
+            ["seriesTitle"] = "Example Series",
+            ["seasonTitle"] = "Season 1",
+            ["episodeTitle"] = "Episode Title",
+            ["episodeNumber"] = "1",
+            ["episodeId"] = "G6EP0001",
+            ["downloadPath"] = @"C:\Downloads\Example Series\Season 1",
+            ["seasonNumber"] = "1",
+            ["description"] = "Example download description.",
+            ["imageUrl"] = "https://static.crunchyroll.com/example-thumbnail.jpg",
+            ["imageUrlLarge"] = "https://static.crunchyroll.com/example-poster.jpg",
+            ["downloadSubs"] = "en-US, de-DE",
+            ["downloadDubs"] = "ja-JP",
+            ["hardsub"] = string.Empty,
+            ["seriesId"] = "G6ABC1234",
+            ["seasonId"] = "G6SEASON01",
+            ["episodeUrl"] = "https://www.crunchyroll.com/watch/G6EP0001"
+        };
+
+        if (!string.IsNullOrWhiteSpace(error)){
+            metadata["error"] = error;
+        }
+
+        return metadata;
+    }
+
+    private static string SerializeHeaders(IReadOnlyDictionary<string, string>? headers){
+        if (headers == null || headers.Count == 0){
+            return string.Empty;
+        }
+
+        return string.Join(Environment.NewLine, headers.Select(pair => $"{pair.Key}: {pair.Value}"));
+    }
+
+    private static Dictionary<string, string> ParseHeaders(string? headerText){
+        var headers = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+        if (string.IsNullOrWhiteSpace(headerText)){
+            return headers;
+        }
+
+        foreach (var rawLine in headerText.Split(["\r\n", "\n"], StringSplitOptions.RemoveEmptyEntries)){
+            var separatorIndex = rawLine.IndexOf(':');
+            if (separatorIndex <= 0){
+                continue;
+            }
+
+            var key = rawLine[..separatorIndex].Trim();
+            var value = rawLine[(separatorIndex + 1)..].Trim();
+
+            if (!string.IsNullOrWhiteSpace(key)){
+                headers[key] = value;
+            }
+        }
+
+        return headers;
+    }
+
 
     partial void OnCurrentAppThemeChanged(ComboBoxItem? value){
         if (value?.Content?.ToString() == "System"){
@@ -758,7 +1172,8 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
             or nameof(CurrentAppTheme)
             or nameof(UseCustomAccent)
             or nameof(TrayIconEnabled)
-            or nameof(LogMode)){
+            or nameof(LogMode)
+            or nameof(PersistQueue)){
             return;
         }
 
@@ -829,4 +1244,9 @@ public partial class GeneralSettingsViewModel : ViewModelBase{
             CfgManager.DisableLogMode();
         }
     }
+
+    partial void OnPersistQueueChanged(bool value){
+        UpdateSettings();
+        QueueManager.Instance.SaveQueueSnapshot();
+    }
 }

CRD/Views/DownloadsPageView.axaml

@@ -43,6 +43,20 @@
                 </ToolTip.Tip>
             </Button>
             
+            <Button BorderThickness="0"
+                    HorizontalAlignment="Right"
+                    Margin="0 0 10 0 "
+                    VerticalAlignment="Center"
+                    IsEnabled="{Binding QueueManagerIns.HasActiveDownloads}"
+                    Command="{Binding PauseQueue}">
+                <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
+                    <controls:SymbolIcon Symbol="Pause" FontSize="22" />
+                </StackPanel>
+                <ToolTip.Tip>
+                    <TextBlock Text="Pause running" HorizontalAlignment="Center" VerticalAlignment="Center" TextWrapping="Wrap"></TextBlock>
+                </ToolTip.Tip>
+            </Button>
+
             <Button BorderThickness="0"
                     HorizontalAlignment="Right"
                     Margin="0 0 10 0 "
@@ -108,11 +122,11 @@
                                             HorizontalAlignment="Right" VerticalAlignment="Top">
                                         <StackPanel Orientation="Horizontal">
                                             <controls:SymbolIcon Symbol="{Binding 
-                                            !Paused, Converter={StaticResource UiValueConverter}}" FontSize="18" />
+                                            ShowPauseIcon, Converter={StaticResource UiValueConverter}}" FontSize="18" />
                                         </StackPanel>
                                     </Button>
 
-                                    <Button Grid.Row="0" Grid.Column="1" Margin="0 0 5 0" IsVisible="{Binding Error}" Command="{Binding ToggleIsDownloading}" FontStyle="Italic"
+                                    <Button Grid.Row="0" Grid.Column="1" Margin="0 0 5 0" IsVisible="{Binding Error}" Command="{Binding RetryDownload}" FontStyle="Italic"
                                             HorizontalAlignment="Right" VerticalAlignment="Top">
                                         <StackPanel Orientation="Horizontal">
                                             <controls:SymbolIcon Symbol="Refresh" FontSize="18" />

CRD/Views/HistoryPageView.axaml

@@ -257,6 +257,16 @@
                                 <ToggleSwitch OffContent="" OnContent="" Grid.Column="1" IsChecked="{Binding ShowArtists}" VerticalAlignment="Center" />
                             </Grid>
 
+                            <Grid Margin="8 0 5 0">
+                                <Grid.ColumnDefinitions>
+                                    <ColumnDefinition Width="*" />
+                                    <ColumnDefinition Width="Auto" />
+                                </Grid.ColumnDefinitions>
+
+                                <TextBlock Text="Movies" Grid.Column="0" VerticalAlignment="Center" />
+                                <ToggleSwitch OffContent="" OnContent="" Grid.Column="1" IsChecked="{Binding ShowMovies}" VerticalAlignment="Center" />
+                            </Grid>
+
 
                             <Rectangle Height="1" Fill="Gray" Margin="0,8,0,8" />
 

CRD/Views/Utils/ContentDialogEncodingPresetView.axaml

@@ -38,29 +38,43 @@
         <StackPanel>
             <TextBlock Text="Enter Codec" Margin="0,10,0,5" />
             <TextBox Watermark="libx265" Text="{Binding Codec}" />
+            <TextBlock Text="Leave empty to provide the encoding options through Additional Parameters only."
+                       Opacity="0.7"
+                       FontSize="12"
+                       TextWrapping="Wrap"
+                       IsVisible="{Binding !HasCodec}" />
         </StackPanel>
 
         <!-- Resolution ComboBox -->
-        <StackPanel>
+        <StackPanel IsVisible="{Binding HasCodec}">
             <TextBlock Text="Select Resolution" Margin="0,10,0,5" />
             <ComboBox HorizontalContentAlignment="Center" MinWidth="210" MaxDropDownHeight="400"
                       ItemsSource="{Binding ResolutionList}"
                       SelectedItem="{Binding SelectedResolution}">
+                <ComboBox.ItemTemplate>
+                    <DataTemplate>
+                        <TextBlock Text="{Binding DisplayName}" />
+                    </DataTemplate>
+                </ComboBox.ItemTemplate>
             </ComboBox>
+            <TextBlock Text="Use exact sizes for fixed output dimensions, or keep AR to preserve the source aspect ratio."
+                       Opacity="0.7"
+                       FontSize="12"
+                       TextWrapping="Wrap" />
         </StackPanel>
 
         <!-- Frame Rate NumberBox -->
-        <StackPanel>
+        <StackPanel IsVisible="{Binding HasCodec}">
             <TextBlock Text="Enter Frame Rate" Margin="0,10,0,5" />
             <!-- <controls:NumberBox Minimum="1" Maximum="999" -->
             <!--                     Value="{Binding FrameRate}" -->
             <!--                     SpinButtonPlacementMode="Inline" -->
             <!--                     HorizontalAlignment="Stretch" /> -->
-            <TextBox Watermark="24" Text="{Binding FrameRate}" />
+            <TextBox Watermark="24000/1001" Text="{Binding FrameRate}" />
         </StackPanel>
 
         <!-- CRF NumberBox -->
-        <StackPanel>
+        <StackPanel IsVisible="{Binding HasCodec}">
             <TextBlock Text="Enter CRF (0-51) - (cq,global_quality,qp)" Margin="0,10,0,5" />
             <controls:NumberBox Minimum="0" Maximum="51"
                                 Value="{Binding Crf}"
@@ -109,6 +123,25 @@
             </ItemsControl>
         </StackPanel>
 
+        <StackPanel Margin="0,20,0,0">
+            <TextBlock Text="Generated FFmpeg Command" Margin="0,0,0,5" />
+            <Border BorderBrush="#4a4a4a"
+                    Background="{DynamicResource ControlAltFillColorQuarternary}"
+                    BorderThickness="1"
+                    CornerRadius="8"
+                    Padding="10"
+                    MaxWidth="700"
+                    HorizontalAlignment="Left">
+                <SelectableTextBlock Text="{Binding CommandPreview}"
+                                     FontFamily="Cascadia Mono, Consolas, Courier New"
+                                     TextWrapping="Wrap" />
+            </Border>
+            <TextBlock Text="This preview uses sample input and output file names, but the generated options match the preset."
+                       Opacity="0.7"
+                       FontSize="12"
+                       TextWrapping="Wrap" />
+        </StackPanel>
+
     </StackPanel>
 
 

CRD/Views/Utils/GeneralSettingsView.axaml

@@ -45,6 +45,12 @@
                     </controls:SettingsExpanderItem.Footer>
                 </controls:SettingsExpanderItem>
 
+                <controls:SettingsExpanderItem Content="Remove Missing History Episodes" Description="During history refresh, remove episodes no longer available on the streaming service. Seasons with no episodes left are removed too.">
+                    <controls:SettingsExpanderItem.Footer>
+                        <CheckBox IsChecked="{Binding HistoryRemoveMissingEpisodes}"> </CheckBox>
+                    </controls:SettingsExpanderItem.Footer>
+                </controls:SettingsExpanderItem>
+
                 <controls:SettingsExpanderItem Content="History Add Specials" Description="Add specials to the queue/count if they weren't downloaded before">
                     <controls:SettingsExpanderItem.Footer>
                         <CheckBox IsChecked="{Binding HistoryAddSpecials}"> </CheckBox>
@@ -91,6 +97,13 @@
                                            Text="{Binding HistoryAutoRefreshModeHint}" />
                             </StackPanel>
 
+                            <StackPanel Spacing="4">
+                                <CheckBox IsChecked="{Binding HistoryAutoRefreshAddToQueue}"
+                                          Content="Add newly found missing episodes to the queue" />
+                                <TextBlock Opacity="0.7" FontSize="12" TextWrapping="Wrap"
+                                           Text="When disabled, auto refresh only updates history and missing counts." />
+                            </StackPanel>
+
                             <StackPanel Spacing="4">
                                 <TextBlock Opacity="0.7" FontSize="12" TextWrapping="Wrap" Text="{Binding HistoryAutoRefreshLastRunTime,StringFormat='Last refresh: {0}'}" />
                             </StackPanel>
@@ -107,6 +120,12 @@
                                        Description="Adjust download settings"
                                        IsExpanded="False">
 
+                <controls:SettingsExpanderItem Content="Persist queue" Description="Save the current download queue on exit and restore it on the next start">
+                    <controls:SettingsExpanderItem.Footer>
+                        <CheckBox IsChecked="{Binding PersistQueue}"> </CheckBox>
+                    </controls:SettingsExpanderItem.Footer>
+                </controls:SettingsExpanderItem>
+
                 <controls:SettingsExpanderItem Content="Enable New Download Method" Description="Enables the updated download handling logic. This may improve performance and stability.">
                     <controls:SettingsExpanderItem.Footer>
                         <CheckBox IsChecked="{Binding DownloadMethodeNew}"> </CheckBox>
@@ -146,19 +165,33 @@
                     <controls:SettingsExpanderItem.Footer>
                         <StackPanel>
                             <StackPanel Orientation="Horizontal">
-                                <TextBlock Width="100" Text="Retry Attempts" Margin="5 0" VerticalAlignment="Center" HorizontalAlignment="Center"></TextBlock>
+                                <TextBlock Width="200" Text="Retry Attempts" Margin="5 0" VerticalAlignment="Center" HorizontalAlignment="Center"></TextBlock>
                                 <controls:NumberBox Minimum="1" Maximum="10"
                                                     Value="{Binding RetryAttempts}"
                                                     SpinButtonPlacementMode="Hidden"
                                                     HorizontalAlignment="Stretch" />
                             </StackPanel>
                             <StackPanel Orientation="Horizontal" Margin="0 5">
-                                <TextBlock Width="100" Text="Retry Delay (s)" Margin="5 0" VerticalAlignment="Center" HorizontalAlignment="Center"></TextBlock>
+                                <TextBlock Width="200" Text="Retry Delay (s)" Margin="5 0" VerticalAlignment="Center" HorizontalAlignment="Center"></TextBlock>
                                 <controls:NumberBox Minimum="1" Maximum="30"
                                                     Value="{Binding RetryDelay}"
                                                     SpinButtonPlacementMode="Hidden"
                                                     HorizontalAlignment="Stretch" />
                             </StackPanel>
+                            <StackPanel Orientation="Horizontal" Margin="0 5">
+                                <TextBlock Width="200" Text="Rate Limit Delay (s)" Margin="5 0" VerticalAlignment="Center" HorizontalAlignment="Center"></TextBlock>
+                                <controls:NumberBox Minimum="1" Maximum="86400"
+                                                    Value="{Binding PlaybackRateLimitRetryDelaySeconds}"
+                                                    SpinButtonPlacementMode="Hidden"
+                                                    HorizontalAlignment="Stretch" />
+                            </StackPanel>
+                            <StackPanel Orientation="Horizontal" Margin="0 5">
+                                <TextBlock Width="200" Text="Rate Limit Max Delay (s)" Margin="5 0" VerticalAlignment="Center" HorizontalAlignment="Center"></TextBlock>
+                                <controls:NumberBox Minimum="1" Maximum="86400"
+                                                    Value="{Binding RetryMaxDelaySeconds}"
+                                                    SpinButtonPlacementMode="Hidden"
+                                                    HorizontalAlignment="Stretch" />
+                            </StackPanel>
                         </StackPanel>
 
 
@@ -246,68 +279,117 @@
                 </controls:SettingsExpanderItem>
 
 
-                <controls:SettingsExpanderItem Content="Play completion sound" Description="Enables a notification sound to be played when all downloads have finished">
+                <controls:SettingsExpander.Footer>
+                </controls:SettingsExpander.Footer>
+            </controls:SettingsExpander>
+
+            <controls:SettingsExpander Header="Notifications"
+                                       IconSource="AlertOn"
+                                       Description="Configure sound, file execution, and webhook notifications"
+                                       IsExpanded="False">
+
+                <controls:SettingsExpanderItem Content="Sound notification" Description="Play a sound file when the queue finishes">
                     <controls:SettingsExpanderItem.Footer>
-                        <StackPanel Spacing="10">
+                        <StackPanel Spacing="10" Width="520">
-                            <StackPanel Orientation="Horizontal" Spacing="10" HorizontalAlignment="Right">
+                            <Grid ColumnDefinitions="*,Auto" ColumnSpacing="10">
-                                <TextBlock IsVisible="{Binding DownloadFinishedPlaySound}"
+                                <TextBlock Grid.Column="0"
+                                           IsVisible="{Binding DownloadFinishedPlaySound}"
                                            Text="{Binding DownloadFinishedSoundPath, Mode=OneWay}"
                                            FontSize="15"
                                            Opacity="0.8"
                                            TextWrapping="NoWrap"
-                                           TextAlignment="Center"
+                                           TextTrimming="CharacterEllipsis"
-                                           VerticalAlignment="Center" />
+                                           VerticalAlignment="Center">
+                                    <ToolTip.Tip>
+                                        <TextBlock Text="{Binding DownloadFinishedSoundPath, Mode=OneWay}" FontSize="15" />
+                                    </ToolTip.Tip>
+                                </TextBlock>
 
+                                <StackPanel Grid.Column="1" Orientation="Horizontal" Spacing="10" HorizontalAlignment="Right">
                                     <Button IsVisible="{Binding DownloadFinishedPlaySound}"
                                             Command="{Binding OpenImageFileDialogAsyncInternalFinishedSound}"
                                             VerticalAlignment="Center"
                                             FontStyle="Italic">
                                         <ToolTip.Tip>
-                                        <TextBlock Text="Select Finished Sound" FontSize="15" />
+                                            <TextBlock Text="Select notification sound" FontSize="15" />
                                         </ToolTip.Tip>
                                         <StackPanel Orientation="Horizontal" Spacing="5">
                                             <controls:SymbolIcon Symbol="Folder" FontSize="18" />
                                         </StackPanel>
                                     </Button>
 
+                                    <Button IsVisible="{Binding DownloadFinishedPlaySound}"
+                                            Command="{Binding TestFinishedSoundAsync}"
+                                            VerticalAlignment="Center"
+                                            FontStyle="Italic">
+                                        <ToolTip.Tip>
+                                            <TextBlock Text="Test selected notification sound" FontSize="15" />
+                                        </ToolTip.Tip>
+                                        <StackPanel Orientation="Horizontal" Spacing="5">
+                                            <controls:SymbolIcon Symbol="Play" FontSize="18" />
+                                        </StackPanel>
+                                    </Button>
+
+                                    <Button IsVisible="{Binding IsTestingFinishedSound}"
+                                            Command="{Binding StopFinishedSoundAsync}"
+                                            VerticalAlignment="Center"
+                                            FontStyle="Italic">
+                                        <ToolTip.Tip>
+                                            <TextBlock Text="Stop notification sound test" FontSize="15" />
+                                        </ToolTip.Tip>
+                                        <StackPanel Orientation="Horizontal" Spacing="5">
+                                            <controls:SymbolIcon Symbol="Stop" FontSize="18" />
+                                        </StackPanel>
+                                    </Button>
+
                                     <Button IsVisible="{Binding DownloadFinishedPlaySound}"
                                             Command="{Binding ClearFinishedSoundPath}"
                                             VerticalAlignment="Center"
                                             FontStyle="Italic">
                                         <ToolTip.Tip>
-                                        <TextBlock Text="Remove Finished Sound Path" FontSize="15" />
+                                            <TextBlock Text="Clear selected notification sound" FontSize="15" />
                                         </ToolTip.Tip>
                                         <StackPanel Orientation="Horizontal" Spacing="5">
                                             <controls:SymbolIcon Symbol="Clear" FontSize="18" />
                                         </StackPanel>
                                     </Button>
 
-                                <CheckBox IsChecked="{Binding DownloadFinishedPlaySound}"> </CheckBox>
+                                    <CheckBox IsChecked="{Binding DownloadFinishedPlaySound}" />
                                 </StackPanel>
+                            </Grid>
 
+                            <TextBlock Opacity="0.7"
+                                       FontSize="12"
+                                       TextWrapping="Wrap"
+                                       Text="This notification is sent only when the full queue finishes." />
                         </StackPanel>
-
                     </controls:SettingsExpanderItem.Footer>
                 </controls:SettingsExpanderItem>
 
-                <controls:SettingsExpanderItem Content="Execute on completion" Description="Enable to run a selected file after all downloads complete">
+                <controls:SettingsExpanderItem Content="Execute file" Description="Run a selected file when the queue finishes">
                     <controls:SettingsExpanderItem.Footer>
-                        <StackPanel Spacing="10">
+                        <StackPanel Spacing="10" Width="520">
-                            <StackPanel Orientation="Horizontal" Spacing="10" HorizontalAlignment="Right">
+                            <Grid ColumnDefinitions="*,Auto" ColumnSpacing="10">
-                                <TextBlock IsVisible="{Binding DownloadFinishedExecute}"
+                                <TextBlock Grid.Column="0"
+                                           IsVisible="{Binding DownloadFinishedExecute}"
                                            Text="{Binding DownloadFinishedExecutePath, Mode=OneWay}"
                                            FontSize="15"
                                            Opacity="0.8"
                                            TextWrapping="NoWrap"
-                                           TextAlignment="Center"
+                                           TextTrimming="CharacterEllipsis"
-                                           VerticalAlignment="Center" />
+                                           VerticalAlignment="Center">
+                                    <ToolTip.Tip>
+                                        <TextBlock Text="{Binding DownloadFinishedExecutePath, Mode=OneWay}" FontSize="15" />
+                                    </ToolTip.Tip>
+                                </TextBlock>
 
+                                <StackPanel Grid.Column="1" Orientation="Horizontal" Spacing="10" HorizontalAlignment="Right">
                                     <Button IsVisible="{Binding DownloadFinishedExecute}"
                                             Command="{Binding OpenFileDialogAsyncInternalFinishedExecute}"
                                             VerticalAlignment="Center"
                                             FontStyle="Italic">
                                         <ToolTip.Tip>
-                                        <TextBlock Text="Select file to execute when downloads finish" FontSize="15" />
+                                            <TextBlock Text="Select file to execute" FontSize="15" />
                                         </ToolTip.Tip>
                                         <StackPanel Orientation="Horizontal" Spacing="5">
                                             <controls:SymbolIcon Symbol="Folder" FontSize="18" />
@@ -326,16 +408,83 @@
                                         </StackPanel>
                                     </Button>
 
-                                <CheckBox IsChecked="{Binding DownloadFinishedExecute}"> </CheckBox>
+                                    <CheckBox IsChecked="{Binding DownloadFinishedExecute}" />
-                            </StackPanel>
                                 </StackPanel>
+                            </Grid>
 
+                            <TextBlock Opacity="0.7"
+                                       FontSize="12"
+                                       TextWrapping="Wrap"
+                                       Text="This action runs only when the full queue finishes." />
+                        </StackPanel>
                     </controls:SettingsExpanderItem.Footer>
                 </controls:SettingsExpanderItem>
 
+                <controls:SettingsExpanderItem Content="Webhook" Description="Send an HTTP request when selected notification events are raised">
+                    <controls:SettingsExpanderItem.Footer>
+                        <StackPanel Spacing="10" Width="520">
+                            <StackPanel Orientation="Horizontal" Spacing="10" HorizontalAlignment="Right">
+                                <TextBox Watermark="https://example.com/webhook"
+                                         MinWidth="420"
+                                         Text="{Binding WebhookUrl}" />
+                                <CheckBox IsChecked="{Binding WebhookEnabled}" />
+                            </StackPanel>
 
-                <controls:SettingsExpander.Footer>
+                            <StackPanel Orientation="Horizontal" Spacing="10">
-                </controls:SettingsExpander.Footer>
+                                <StackPanel Spacing="4">
+                                    <TextBlock Text="Method" />
+                                    <TextBox MinWidth="120" Text="{Binding WebhookMethod}" />
+                                </StackPanel>
+
+                                <StackPanel Spacing="4">
+                                    <TextBlock Text="Content type" />
+                                    <TextBox MinWidth="220" Text="{Binding WebhookContentType}" />
+                                </StackPanel>
+                            </StackPanel>
+
+                            <StackPanel Spacing="4">
+                                <TextBlock Text="Headers" />
+                                <TextBox AcceptsReturn="True"
+                                         Height="90"
+                                         Text="{Binding WebhookHeadersText}"
+                                         Watermark="Authorization: Bearer token&#10;X-App: CRD" />
+                                <TextBlock Opacity="0.7"
+                                           FontSize="12"
+                                           TextWrapping="Wrap"
+                                           Text="Enter one header per line in the format Name: Value." />
+                            </StackPanel>
+
+                            <StackPanel Spacing="4">
+                                <TextBlock Text="Body template" />
+                                <TextBox AcceptsReturn="True"
+                                         Height="120"
+                                         Text="{Binding WebhookBodyTemplate}"
+                                         Watermark="JSON template using placeholders like {{eventType}} and {{message}}" />
+                                <TextBlock Opacity="0.7"
+                                           FontSize="12"
+                                           TextWrapping="Wrap"
+                                           Text="Leave empty to send the default JSON payload. Available placeholders include {{eventType}}, {{title}}, {{message}}, {{timestampUtc}}, and metadata keys." />
+                            </StackPanel>
+
+                            <WrapPanel ItemWidth="245" Orientation="Horizontal">
+                                <CheckBox IsChecked="{Binding WebhookNotifyQueueFinished}" Content="Queue finished" />
+                                <CheckBox IsChecked="{Binding WebhookNotifyDownloadFinished}" Content="Download finished" />
+                                <CheckBox IsChecked="{Binding WebhookNotifyDownloadFailed}" Content="Download failed" />
+                                <CheckBox IsChecked="{Binding WebhookNotifyTrackedSeriesEpisodeReleased}" Content="Tracked series episode released" />
+                                <CheckBox IsChecked="{Binding WebhookNotifyLoginExpired}" Content="Login expired" />
+                                <CheckBox IsChecked="{Binding WebhookNotifyUpdateAvailable}" Content="Update available" />
+                            </WrapPanel>
+
+                            <StackPanel Orientation="Horizontal" Spacing="10" HorizontalAlignment="Right">
+                                <Button Command="{Binding TestWebhookCommand}"
+                                        Content="Send selected test events" />
+                                <ProgressBar Width="120"
+                                             IsIndeterminate="True"
+                                             IsVisible="{Binding IsTestingWebhook}" />
+                            </StackPanel>
+                        </StackPanel>
+                    </controls:SettingsExpanderItem.Footer>
+                </controls:SettingsExpanderItem>
             </controls:SettingsExpander>
 
             <controls:SettingsExpander Header="Sonarr Settings"
@@ -776,7 +925,7 @@
                     </controls:SettingsExpanderItem.Footer>
                 </controls:SettingsExpanderItem>
 
-                <controls:SettingsExpanderItem Content="IP" Description="Check your current IP address to confirm if traffic is routed through a VPN">
+                <controls:SettingsExpanderItem Content="IP" Description="Check your current IP address to confirm that traffic is routed through a VPN.&#10;After enabling the VPN or changing location, restart the app; otherwise, Crunchyroll may still see the old login location.">
                     <controls:SettingsExpanderItem.Footer>
                         <Grid VerticalAlignment="Center">
                             <Grid.ColumnDefinitions>

Dockerfile.webtop

@@ -0,0 +1,33 @@
+ARG WEBTOP_TAG=ubuntu-xfce
+FROM lscr.io/linuxserver/webtop:${WEBTOP_TAG}
+
+USER root
+
+RUN if command -v apk >/dev/null 2>&1; then \
+        apk add --no-cache ffmpeg mkvtoolnix; \
+    elif command -v apt-get >/dev/null 2>&1; then \
+        apt-get update \
+        && apt-get install -y --no-install-recommends ffmpeg mkvtoolnix \
+        && rm -rf /var/lib/apt/lists/*; \
+    else \
+        echo "Unsupported base image: no apk or apt-get found" >&2; \
+        exit 1; \
+    fi
+
+COPY docker/crd-linux-x64/ /opt/crd/
+COPY docker/crd.desktop /usr/share/applications/crd.desktop
+COPY CRD/Assets/app_icon.png /opt/crd/crd-icon.png
+COPY docker/50-crd-shortcuts /custom-cont-init.d/50-crd-shortcuts
+
+RUN chmod +x /opt/crd/CRD /opt/crd/Updater /custom-cont-init.d/50-crd-shortcuts \
+    && rm -rf /opt/crd/config /opt/crd/temp /opt/crd/video /opt/crd/presets /opt/crd/fonts /opt/crd/widevine /opt/crd/lib /opt/crd/logfile.txt \
+    && ln -s /crd-data/config /opt/crd/config \
+    && ln -s /crd-data/temp /opt/crd/temp \
+    && ln -s /crd-data/video /opt/crd/video \
+    && ln -s /crd-data/presets /opt/crd/presets \
+    && ln -s /crd-data/fonts /opt/crd/fonts \
+    && ln -s /crd-data/widevine /opt/crd/widevine \
+    && ln -s /crd-data/lib /opt/crd/lib \
+    && ln -s /crd-data/logfile.txt /opt/crd/logfile.txt
+
+WORKDIR /opt/crd

docker/50-crd-shortcuts

@@ -0,0 +1,16 @@
+#!/usr/bin/with-contenv sh
+set -eu
+
+desktop_dir="/config/Desktop"
+autostart_dir="/config/.config/autostart"
+desktop_file="/usr/share/applications/crd.desktop"
+app_data_dir="/crd-data"
+run_uid="${PUID:-1000}"
+run_gid="${PGID:-1000}"
+
+mkdir -p "$desktop_dir" "$autostart_dir"
+mkdir -p "$app_data_dir/config" "$app_data_dir/temp" "$app_data_dir/video" "$app_data_dir/presets" "$app_data_dir/fonts" "$app_data_dir/widevine" "$app_data_dir/lib"
+cp "$desktop_file" "$desktop_dir/CRD.desktop"
+cp "$desktop_file" "$autostart_dir/CRD.desktop"
+chmod +x "$desktop_dir/CRD.desktop" "$autostart_dir/CRD.desktop"
+chown -R "$run_uid:$run_gid" "$app_data_dir" "$desktop_dir" "$autostart_dir"

docker/crd.desktop

@@ -0,0 +1,9 @@
+[Desktop Entry]
+Type=Application
+Version=1.0
+Name=CRD
+Comment=Crunchy Downloader
+Exec=/opt/crd/CRD
+Icon=/opt/crd/crd-icon.png
+Terminal=false
+Categories=AudioVideo;Network;