fix(mal): enforce strict season-aware matching for episodes

- Removed the fallback to the show-level malId (which often points to Season 1) during scrobbling.
- Prioritized ARM/TMDB date-based mapping in watchedService and MalSync.
- Enabled tmdbId mapping when marking an entire season as watched in SeriesContent.tsx to ensure accurate season resolution on MyAnimeList.

src/components/metadata/SeriesContent.tsx

@@ -724,18 +724,21 @@ const SeriesContentComponent: React.FC<SeriesContentProps> = ({
           const lastEp = Math.max(...episodeNumbers);
           const lastEpisodeData = seasonEpisodes.find(e => e.episode_number === lastEp);
           const totalEpisodes = Object.values(groupedEpisodes).reduce((acc, curr) => acc + (curr?.length || 0), 0);
-          
+          const showTmdbId = (metadata as any)?.tmdbId || (metadata as any)?.external_ids?.tmdb_id;
+
           MalSync.scrobbleEpisode(
-              metadata.name, 
-              lastEp, 
-              totalEpisodes, 
-              'series', 
-              currentSeason, 
+              metadata.name,
+              lastEp,
+              totalEpisodes,
+              'series',
+              currentSeason,
               imdbId,
-              lastEpisodeData?.air_date // Pass release date for accuracy
+              lastEpisodeData?.air_date, // Pass release date for accuracy
+              undefined, // Don't pass the base show malId, force it to resolve correct season
+              undefined, // No dayIndex for season completion
+              showTmdbId
           );
       }
-
       // Re-sync with source of truth
       loadEpisodesProgress();
 

src/services/mal/MalSync.ts

@@ -194,11 +194,11 @@ export const MalSync = {
           return;
       }
 
-      let malId: number | null = providedMalId || null;
+      let malId: number | null = null;
       let finalEpisodeNumber = episodeNumber;
 
-      // Strategy 1: TMDB-based Resolution (High Accuracy for Specials)
-      if (!malId && tmdbId && releaseDate) {
+      // Strategy 1: TMDB-based Resolution (High Accuracy for Specials/Seasons)
+      if (tmdbId && releaseDate) {
           const tmdbResult = await ArmSyncService.resolveByTmdb(tmdbId, releaseDate, dayIndex);
           if (tmdbResult) {
               malId = tmdbResult.malId;
@@ -296,11 +296,11 @@ export const MalSync = {
     try {
       if (!MalAuth.isAuthenticated()) return;
 
-      let malId: number | null = providedMalId || null;
+      let malId: number | null = null;
       let finalEpisodeNumber = episodeNumber;
 
       // Resolve ID using same strategies as scrobbling
-      if (!malId && tmdbId && releaseDate) {
+      if (tmdbId && releaseDate) {
           const tmdbResult = await ArmSyncService.resolveByTmdb(tmdbId, releaseDate, dayIndex);
           if (tmdbResult) {
               malId = tmdbResult.malId;

src/services/watchedService.ts

@@ -332,15 +332,10 @@ class WatchedService {
 
             // Sync to MAL
             if (MalAuth.isAuthenticated() && (showImdbId || malId || tmdbId)) {
-                // Strategy 0: Direct Match (if malId is provided)
                 let synced = false;
-                if (malId) {
-                    await MalSync.scrobbleDirect(malId, episode);
-                    synced = true;
-                }
 
                 // Strategy 1: TMDB-based Resolution (High Accuracy for Specials)
-                if (!synced && releaseDate && tmdbId) {
+                if (releaseDate && tmdbId) {
                     try {
                         const tmdbResult = await ArmSyncService.resolveByTmdb(tmdbId, releaseDate, dayIndex);
                         if (tmdbResult) {