Merge pull request #687 from Schnitzel5/feature/mass-migration

added mass migration

lib/eval/javascript/service.dart

@@ -33,11 +33,12 @@ class JsExtensionService implements ExtensionService {
     JsUtils(runtime).init();
     JsVideosExtractors(runtime).init();
     JsPreferences(runtime, source).init();
+    final sourceJson = jsonEncode(source.toMSource().toJson());
 
     runtime.evaluate('''
 class MProvider {
     get source() {
-        return JSON.parse('${jsonEncode(source.toMSource().toJson())}');
+        return $sourceJson;
     }
     get supportsLatest() {
         throw new Error("supportsLatest not implemented");
@@ -96,7 +97,7 @@ var extention = new DefaultExtension();
   @override
   Map<String, String> getHeaders() {
     return _extensionCall<Map>(
-      'getHeaders(`${source.baseUrl ?? ''}`)',
+      'getHeaders(${jsonEncode(source.baseUrl ?? '')})',
       {},
     ).toMapStringString!;
   }
@@ -127,14 +128,16 @@ var extention = new DefaultExtension();
   Future<MPages> search(String query, int page, List<dynamic> filters) async {
     return MPages.fromJson(
       await _extensionCallAsync(
-        'search("$query",$page,${jsonEncode(filterValuesListToJson(filters))})',
+        'search(${jsonEncode(query)},$page,${jsonEncode(filterValuesListToJson(filters))})',
       ),
     );
   }
 
   @override
   Future<MManga> getDetail(String url) async {
-    return MManga.fromJson(await _extensionCallAsync('getDetail(`$url`)'));
+    return MManga.fromJson(
+      await _extensionCallAsync('getDetail(${jsonEncode(url)})'),
+    );
   }
 
   @override
@@ -144,7 +147,9 @@ var extention = new DefaultExtension();
       hashCode: (p) => p.url.hashCode,
     );
 
-    for (final e in await _extensionCallAsync<List>('getPageList(`$url`)')) {
+    for (final e in await _extensionCallAsync<List>(
+      'getPageList(${jsonEncode(url)})',
+    )) {
       if (e != null) {
         final page = e is String
             ? PageUrl(e.trim())
@@ -164,7 +169,7 @@ var extention = new DefaultExtension();
     );
 
     for (final element in await _extensionCallAsync<List>(
-      'getVideoList(`$url`)',
+      'getVideoList(${jsonEncode(url)})',
     )) {
       if (element['url'] != null && element['originalUrl'] != null) {
         videos.add(Video.fromJson(element));
@@ -178,7 +183,7 @@ var extention = new DefaultExtension();
     _init();
     final res = (await runtime.handlePromise(
       await runtime.evaluateAsync(
-        'jsonStringify(() => extention.getHtmlContent(`$name`, `$url`))',
+        'jsonStringify(() => extention.getHtmlContent(${jsonEncode(name)}, ${jsonEncode(url)}))',
       ),
     )).stringResult;
     return res;
@@ -189,7 +194,7 @@ var extention = new DefaultExtension();
     _init();
     final res = (await runtime.handlePromise(
       await runtime.evaluateAsync(
-        'jsonStringify(() => extention.cleanHtmlContent(`$html`))',
+        'jsonStringify(() => extention.cleanHtmlContent(${jsonEncode(html)}))',
       ),
     )).stringResult;
     return res;

lib/eval/lnreader/service.dart

@@ -154,7 +154,10 @@ const extension = exports.default;
   @override
   Future<MPages> search(String query, int page, List<dynamic> filters) async {
     final items =
-        ((await _extensionCallAsync('searchNovels("$query",$page)', [])))
+        ((await _extensionCallAsync(
+              'searchNovels(${jsonEncode(query)},$page)',
+              [],
+            )))
             .map((e) => NovelItem.fromJson(e))
             .map(
               (e) => MManga(
@@ -171,10 +174,13 @@ const extension = exports.default;
   @override
   Future<MManga> getDetail(String url) async {
     final item = SourceNovel.fromJson(
-      await _extensionCallAsync('parseNovel(`$url`)', {}),
+      await _extensionCallAsync('parseNovel(${jsonEncode(url)})', {}),
     );
     final chapters = SourcePage.fromJson(
-      await _extensionCallAsync('parsePage(`${item.path}`, `1`)', {}),
+      await _extensionCallAsync(
+        'parsePage(${jsonEncode(item.path)}, ${jsonEncode('1')})',
+        {},
+      ),
     );
     final chaps =
         ((chapters.chapters.isNotEmpty ? chapters.chapters : item.chapters)
@@ -225,7 +231,7 @@ const extension = exports.default;
     _init();
     final res = (await runtime.handlePromise(
       await runtime.evaluateAsync(
-        'jsonStringify(() => extension.parseChapter(`$url`))',
+        'jsonStringify(() => extension.parseChapter(${jsonEncode(url)}))',
       ),
     )).stringResult;
     return res;

lib/l10n/app_en.arb

@@ -71,6 +71,188 @@
   "latest": "Latest",
   "extensions": "Extensions",
   "migrate": "Migrate",
+  "mass_migration_title": "Mass migration",
+  "mass_migration_preview_items": "Preview items",
+  "mass_migration_destination_source": "Destination source",
+  "mass_migration_no_library_items": "No library items are available for mass migration.",
+  "mass_migration_no_destination_sources": "No installed destination sources are available.",
+  "mass_migration_installed": "Installed",
+  "mass_migration_items_ready_for_review": "{count, plural, =1{1 item ready for review} other{{count} items ready for review}}",
+  "@mass_migration_items_ready_for_review": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_item_count": "{count, plural, =1{1 item} other{{count} items}}",
+  "@mass_migration_item_count": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_select_destination_source": "Select destination source",
+  "mass_migration_finding_matches": "Finding matches in {source} • {language}",
+  "@mass_migration_finding_matches": {
+    "placeholders": {
+      "source": {},
+      "language": {}
+    }
+  },
+  "mass_migration_processing_item": "Processing item {current} of {total}",
+  "@mass_migration_processing_item": {
+    "placeholders": {
+      "current": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_waiting_next_item": "Waiting 2 seconds before the next item...",
+  "mass_migration_waiting_next_migration": "Waiting 2 seconds before the next migration...",
+  "mass_migration_matched_so_far": "Matched so far: {count}",
+  "@mass_migration_matched_so_far": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_no_match_count": "No match: {count}",
+  "@mass_migration_no_match_count": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_review_matches": "Review matches for {source}",
+  "@mass_migration_review_matches": {
+    "placeholders": {
+      "source": {}
+    }
+  },
+  "mass_migration_found_matches": "Found matches: {count}",
+  "@mass_migration_found_matches": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_no_matches": "No matches: {count}",
+  "@mass_migration_no_matches": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_selected_to_migrate": "Selected to migrate: {count}",
+  "@mass_migration_selected_to_migrate": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_finish_review": "Finish review",
+  "mass_migration_migrate_selected": "Migrate selected items ({count})",
+  "@mass_migration_migrate_selected": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_migrating_selected": "Migrating selected items to {source}",
+  "@mass_migration_migrating_selected": {
+    "placeholders": {
+      "source": {}
+    }
+  },
+  "mass_migration_no_items_selected": "No items selected for migration.",
+  "mass_migration_migrating_item": "Migrating item {current} of {total}",
+  "@mass_migration_migrating_item": {
+    "placeholders": {
+      "current": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_complete": "Mass migration complete",
+  "mass_migration_complete_success_message": "All selected items were processed successfully.",
+  "mass_migration_complete_partial_message": "Migration finished with a few items that still need manual attention.",
+  "mass_migration_route_summary": "{source} → {destination}",
+  "@mass_migration_route_summary": {
+    "placeholders": {
+      "source": {},
+      "destination": {}
+    }
+  },
+  "mass_migration_processed": "Processed",
+  "mass_migration_matched": "Matched",
+  "mass_migration_migrated": "Migrated",
+  "mass_migration_skipped": "Skipped",
+  "mass_migration_failed": "Failed",
+  "mass_migration_failed_items": "Failed Items",
+  "mass_migration_exit": "Exit Mass Migration",
+  "mass_migration_no_destination_match": "No destination match found",
+  "mass_migration_query": "Query: {query}",
+  "@mass_migration_query": {
+    "placeholders": {
+      "query": {}
+    }
+  },
+  "mass_migration_skip": "Skip",
+  "mass_migration_loading": "Loading...",
+  "mass_migration_choose_another_result": "Choose another result",
+  "mass_migration_source_chapters": "Source chapters",
+  "mass_migration_destination_chapters": "Destination chapters",
+  "mass_migration_chapter_count": "{count, plural, =1{1 chapter} other{{count} chapters}}",
+  "@mass_migration_chapter_count": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_source_chapter_count": "{count, plural, =1{1 source chapter} other{{count} source chapters}}",
+  "@mass_migration_source_chapter_count": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_destination_chapter_count": "{count, plural, =1{1 destination chapter} other{{count} destination chapters}}",
+  "@mass_migration_destination_chapter_count": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_no_chapters_found": "No chapters found.",
+  "mass_migration_and_more_chapters": "And {count} more...",
+  "@mass_migration_and_more_chapters": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "mass_migration_unknown_title": "Unknown title",
+  "mass_migration_unknown_match": "Unknown match",
+  "mass_migration_unknown_source": "Unknown source",
+  "mass_migration_unknown_chapter": "Unknown chapter",
   "migrate_confirm": "Migrate to another source",
   "clean_database": "Clean database",
   "cleaned_database": "Database cleaned! {x} entries removed",

lib/l10n/generated/app_localizations.dart

@@ -503,6 +503,312 @@ abstract class AppLocalizations {
   /// **'Migrate'**
   String get migrate;
 
+  /// No description provided for @mass_migration_title.
+  ///
+  /// In en, this message translates to:
+  /// **'Mass migration'**
+  String get mass_migration_title;
+
+  /// No description provided for @mass_migration_preview_items.
+  ///
+  /// In en, this message translates to:
+  /// **'Preview items'**
+  String get mass_migration_preview_items;
+
+  /// No description provided for @mass_migration_destination_source.
+  ///
+  /// In en, this message translates to:
+  /// **'Destination source'**
+  String get mass_migration_destination_source;
+
+  /// No description provided for @mass_migration_no_library_items.
+  ///
+  /// In en, this message translates to:
+  /// **'No library items are available for mass migration.'**
+  String get mass_migration_no_library_items;
+
+  /// No description provided for @mass_migration_no_destination_sources.
+  ///
+  /// In en, this message translates to:
+  /// **'No installed destination sources are available.'**
+  String get mass_migration_no_destination_sources;
+
+  /// No description provided for @mass_migration_installed.
+  ///
+  /// In en, this message translates to:
+  /// **'Installed'**
+  String get mass_migration_installed;
+
+  /// No description provided for @mass_migration_items_ready_for_review.
+  ///
+  /// In en, this message translates to:
+  /// **'{count, plural, =1{1 item ready for review} other{{count} items ready for review}}'**
+  String mass_migration_items_ready_for_review(int count);
+
+  /// No description provided for @mass_migration_item_count.
+  ///
+  /// In en, this message translates to:
+  /// **'{count, plural, =1{1 item} other{{count} items}}'**
+  String mass_migration_item_count(int count);
+
+  /// No description provided for @mass_migration_select_destination_source.
+  ///
+  /// In en, this message translates to:
+  /// **'Select destination source'**
+  String get mass_migration_select_destination_source;
+
+  /// No description provided for @mass_migration_finding_matches.
+  ///
+  /// In en, this message translates to:
+  /// **'Finding matches in {source} • {language}'**
+  String mass_migration_finding_matches(Object source, Object language);
+
+  /// No description provided for @mass_migration_processing_item.
+  ///
+  /// In en, this message translates to:
+  /// **'Processing item {current} of {total}'**
+  String mass_migration_processing_item(int current, int total);
+
+  /// No description provided for @mass_migration_waiting_next_item.
+  ///
+  /// In en, this message translates to:
+  /// **'Waiting 2 seconds before the next item...'**
+  String get mass_migration_waiting_next_item;
+
+  /// No description provided for @mass_migration_waiting_next_migration.
+  ///
+  /// In en, this message translates to:
+  /// **'Waiting 2 seconds before the next migration...'**
+  String get mass_migration_waiting_next_migration;
+
+  /// No description provided for @mass_migration_matched_so_far.
+  ///
+  /// In en, this message translates to:
+  /// **'Matched so far: {count}'**
+  String mass_migration_matched_so_far(int count);
+
+  /// No description provided for @mass_migration_no_match_count.
+  ///
+  /// In en, this message translates to:
+  /// **'No match: {count}'**
+  String mass_migration_no_match_count(int count);
+
+  /// No description provided for @mass_migration_review_matches.
+  ///
+  /// In en, this message translates to:
+  /// **'Review matches for {source}'**
+  String mass_migration_review_matches(Object source);
+
+  /// No description provided for @mass_migration_found_matches.
+  ///
+  /// In en, this message translates to:
+  /// **'Found matches: {count}'**
+  String mass_migration_found_matches(int count);
+
+  /// No description provided for @mass_migration_no_matches.
+  ///
+  /// In en, this message translates to:
+  /// **'No matches: {count}'**
+  String mass_migration_no_matches(int count);
+
+  /// No description provided for @mass_migration_selected_to_migrate.
+  ///
+  /// In en, this message translates to:
+  /// **'Selected to migrate: {count}'**
+  String mass_migration_selected_to_migrate(int count);
+
+  /// No description provided for @mass_migration_finish_review.
+  ///
+  /// In en, this message translates to:
+  /// **'Finish review'**
+  String get mass_migration_finish_review;
+
+  /// No description provided for @mass_migration_migrate_selected.
+  ///
+  /// In en, this message translates to:
+  /// **'Migrate selected items ({count})'**
+  String mass_migration_migrate_selected(int count);
+
+  /// No description provided for @mass_migration_migrating_selected.
+  ///
+  /// In en, this message translates to:
+  /// **'Migrating selected items to {source}'**
+  String mass_migration_migrating_selected(Object source);
+
+  /// No description provided for @mass_migration_no_items_selected.
+  ///
+  /// In en, this message translates to:
+  /// **'No items selected for migration.'**
+  String get mass_migration_no_items_selected;
+
+  /// No description provided for @mass_migration_migrating_item.
+  ///
+  /// In en, this message translates to:
+  /// **'Migrating item {current} of {total}'**
+  String mass_migration_migrating_item(int current, int total);
+
+  /// No description provided for @mass_migration_complete.
+  ///
+  /// In en, this message translates to:
+  /// **'Mass migration complete'**
+  String get mass_migration_complete;
+
+  /// No description provided for @mass_migration_complete_success_message.
+  ///
+  /// In en, this message translates to:
+  /// **'All selected items were processed successfully.'**
+  String get mass_migration_complete_success_message;
+
+  /// No description provided for @mass_migration_complete_partial_message.
+  ///
+  /// In en, this message translates to:
+  /// **'Migration finished with a few items that still need manual attention.'**
+  String get mass_migration_complete_partial_message;
+
+  /// No description provided for @mass_migration_route_summary.
+  ///
+  /// In en, this message translates to:
+  /// **'{source} → {destination}'**
+  String mass_migration_route_summary(Object source, Object destination);
+
+  /// No description provided for @mass_migration_processed.
+  ///
+  /// In en, this message translates to:
+  /// **'Processed'**
+  String get mass_migration_processed;
+
+  /// No description provided for @mass_migration_matched.
+  ///
+  /// In en, this message translates to:
+  /// **'Matched'**
+  String get mass_migration_matched;
+
+  /// No description provided for @mass_migration_migrated.
+  ///
+  /// In en, this message translates to:
+  /// **'Migrated'**
+  String get mass_migration_migrated;
+
+  /// No description provided for @mass_migration_skipped.
+  ///
+  /// In en, this message translates to:
+  /// **'Skipped'**
+  String get mass_migration_skipped;
+
+  /// No description provided for @mass_migration_failed.
+  ///
+  /// In en, this message translates to:
+  /// **'Failed'**
+  String get mass_migration_failed;
+
+  /// No description provided for @mass_migration_failed_items.
+  ///
+  /// In en, this message translates to:
+  /// **'Failed Items'**
+  String get mass_migration_failed_items;
+
+  /// No description provided for @mass_migration_exit.
+  ///
+  /// In en, this message translates to:
+  /// **'Exit Mass Migration'**
+  String get mass_migration_exit;
+
+  /// No description provided for @mass_migration_no_destination_match.
+  ///
+  /// In en, this message translates to:
+  /// **'No destination match found'**
+  String get mass_migration_no_destination_match;
+
+  /// No description provided for @mass_migration_query.
+  ///
+  /// In en, this message translates to:
+  /// **'Query: {query}'**
+  String mass_migration_query(Object query);
+
+  /// No description provided for @mass_migration_skip.
+  ///
+  /// In en, this message translates to:
+  /// **'Skip'**
+  String get mass_migration_skip;
+
+  /// No description provided for @mass_migration_loading.
+  ///
+  /// In en, this message translates to:
+  /// **'Loading...'**
+  String get mass_migration_loading;
+
+  /// No description provided for @mass_migration_choose_another_result.
+  ///
+  /// In en, this message translates to:
+  /// **'Choose another result'**
+  String get mass_migration_choose_another_result;
+
+  /// No description provided for @mass_migration_source_chapters.
+  ///
+  /// In en, this message translates to:
+  /// **'Source chapters'**
+  String get mass_migration_source_chapters;
+
+  /// No description provided for @mass_migration_destination_chapters.
+  ///
+  /// In en, this message translates to:
+  /// **'Destination chapters'**
+  String get mass_migration_destination_chapters;
+
+  /// No description provided for @mass_migration_chapter_count.
+  ///
+  /// In en, this message translates to:
+  /// **'{count, plural, =1{1 chapter} other{{count} chapters}}'**
+  String mass_migration_chapter_count(int count);
+
+  /// No description provided for @mass_migration_source_chapter_count.
+  ///
+  /// In en, this message translates to:
+  /// **'{count, plural, =1{1 source chapter} other{{count} source chapters}}'**
+  String mass_migration_source_chapter_count(int count);
+
+  /// No description provided for @mass_migration_destination_chapter_count.
+  ///
+  /// In en, this message translates to:
+  /// **'{count, plural, =1{1 destination chapter} other{{count} destination chapters}}'**
+  String mass_migration_destination_chapter_count(int count);
+
+  /// No description provided for @mass_migration_no_chapters_found.
+  ///
+  /// In en, this message translates to:
+  /// **'No chapters found.'**
+  String get mass_migration_no_chapters_found;
+
+  /// No description provided for @mass_migration_and_more_chapters.
+  ///
+  /// In en, this message translates to:
+  /// **'And {count} more...'**
+  String mass_migration_and_more_chapters(int count);
+
+  /// No description provided for @mass_migration_unknown_title.
+  ///
+  /// In en, this message translates to:
+  /// **'Unknown title'**
+  String get mass_migration_unknown_title;
+
+  /// No description provided for @mass_migration_unknown_match.
+  ///
+  /// In en, this message translates to:
+  /// **'Unknown match'**
+  String get mass_migration_unknown_match;
+
+  /// No description provided for @mass_migration_unknown_source.
+  ///
+  /// In en, this message translates to:
+  /// **'Unknown source'**
+  String get mass_migration_unknown_source;
+
+  /// No description provided for @mass_migration_unknown_chapter.
+  ///
+  /// In en, this message translates to:
+  /// **'Unknown chapter'**
+  String get mass_migration_unknown_chapter;
+
   /// No description provided for @migrate_confirm.
   ///
   /// In en, this message translates to:

lib/l10n/generated/app_localizations_ar.dart

@@ -210,6 +210,236 @@ class AppLocalizationsAr extends AppLocalizations {
   @override
   String get migrate => 'ترحيل';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'الانتقال إلى مصدر آخر';
 

lib/l10n/generated/app_localizations_as.dart

@@ -212,6 +212,236 @@ class AppLocalizationsAs extends AppLocalizations {
   @override
   String get migrate => 'স্থানান্তৰ';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'অন্য উৎসলৈ স্থানান্তৰ কৰক';
 

lib/l10n/generated/app_localizations_de.dart

@@ -212,6 +212,236 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get migrate => 'Migrieren';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'Zu einer anderen Erweiterung migrieren';
 

lib/l10n/generated/app_localizations_en.dart

@@ -211,6 +211,236 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get migrate => 'Migrate';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'Migrate to another source';
 

lib/l10n/generated/app_localizations_es.dart

@@ -214,6 +214,236 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get migrate => 'Migrar';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'Migrar a otra fuente';
 

lib/l10n/generated/app_localizations_fr.dart

@@ -214,6 +214,236 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get migrate => 'Migrer';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'Migrer vers une autre source';
 

lib/l10n/generated/app_localizations_hi.dart

@@ -212,6 +212,236 @@ class AppLocalizationsHi extends AppLocalizations {
   @override
   String get migrate => 'स्थानांतरण';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'दूसरे स्रोत में माइग्रेट करें';
 

lib/l10n/generated/app_localizations_id.dart

@@ -214,6 +214,236 @@ class AppLocalizationsId extends AppLocalizations {
   @override
   String get migrate => 'Migrasi';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'Migrasi ke sumber lain';
 

lib/l10n/generated/app_localizations_it.dart

@@ -214,6 +214,236 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get migrate => 'Migra';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'Migrare a un\'altra fonte';
 

lib/l10n/generated/app_localizations_ja.dart

@@ -207,6 +207,236 @@ class AppLocalizationsJa extends AppLocalizations {
   @override
   String get migrate => '移行';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => '別のソースに移行';
 

lib/l10n/generated/app_localizations_pt.dart

@@ -214,6 +214,236 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get migrate => 'Migrar';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'Migrar para outra fonte';
 

lib/l10n/generated/app_localizations_ru.dart

@@ -213,6 +213,236 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get migrate => 'Перенести';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'Перенести на другой источник';
 

lib/l10n/generated/app_localizations_th.dart

@@ -211,6 +211,236 @@ class AppLocalizationsTh extends AppLocalizations {
   @override
   String get migrate => 'ผนวก';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'ย้ายไปยังแหล่งอื่น';
 

lib/l10n/generated/app_localizations_tr.dart

@@ -211,6 +211,236 @@ class AppLocalizationsTr extends AppLocalizations {
   @override
   String get migrate => 'Taşı';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => 'Başka bir kaynağa geç';
 

lib/l10n/generated/app_localizations_zh.dart

@@ -207,6 +207,236 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get migrate => '迁移';
 
+  @override
+  String get mass_migration_title => 'Mass migration';
+
+  @override
+  String get mass_migration_preview_items => 'Preview items';
+
+  @override
+  String get mass_migration_destination_source => 'Destination source';
+
+  @override
+  String get mass_migration_no_library_items =>
+      'No library items are available for mass migration.';
+
+  @override
+  String get mass_migration_no_destination_sources =>
+      'No installed destination sources are available.';
+
+  @override
+  String get mass_migration_installed => 'Installed';
+
+  @override
+  String mass_migration_items_ready_for_review(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items ready for review',
+      one: '1 item ready for review',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_item_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count items',
+      one: '1 item',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_select_destination_source =>
+      'Select destination source';
+
+  @override
+  String mass_migration_finding_matches(Object source, Object language) {
+    return 'Finding matches in $source • $language';
+  }
+
+  @override
+  String mass_migration_processing_item(int current, int total) {
+    return 'Processing item $current of $total';
+  }
+
+  @override
+  String get mass_migration_waiting_next_item =>
+      'Waiting 2 seconds before the next item...';
+
+  @override
+  String get mass_migration_waiting_next_migration =>
+      'Waiting 2 seconds before the next migration...';
+
+  @override
+  String mass_migration_matched_so_far(int count) {
+    return 'Matched so far: $count';
+  }
+
+  @override
+  String mass_migration_no_match_count(int count) {
+    return 'No match: $count';
+  }
+
+  @override
+  String mass_migration_review_matches(Object source) {
+    return 'Review matches for $source';
+  }
+
+  @override
+  String mass_migration_found_matches(int count) {
+    return 'Found matches: $count';
+  }
+
+  @override
+  String mass_migration_no_matches(int count) {
+    return 'No matches: $count';
+  }
+
+  @override
+  String mass_migration_selected_to_migrate(int count) {
+    return 'Selected to migrate: $count';
+  }
+
+  @override
+  String get mass_migration_finish_review => 'Finish review';
+
+  @override
+  String mass_migration_migrate_selected(int count) {
+    return 'Migrate selected items ($count)';
+  }
+
+  @override
+  String mass_migration_migrating_selected(Object source) {
+    return 'Migrating selected items to $source';
+  }
+
+  @override
+  String get mass_migration_no_items_selected =>
+      'No items selected for migration.';
+
+  @override
+  String mass_migration_migrating_item(int current, int total) {
+    return 'Migrating item $current of $total';
+  }
+
+  @override
+  String get mass_migration_complete => 'Mass migration complete';
+
+  @override
+  String get mass_migration_complete_success_message =>
+      'All selected items were processed successfully.';
+
+  @override
+  String get mass_migration_complete_partial_message =>
+      'Migration finished with a few items that still need manual attention.';
+
+  @override
+  String mass_migration_route_summary(Object source, Object destination) {
+    return '$source → $destination';
+  }
+
+  @override
+  String get mass_migration_processed => 'Processed';
+
+  @override
+  String get mass_migration_matched => 'Matched';
+
+  @override
+  String get mass_migration_migrated => 'Migrated';
+
+  @override
+  String get mass_migration_skipped => 'Skipped';
+
+  @override
+  String get mass_migration_failed => 'Failed';
+
+  @override
+  String get mass_migration_failed_items => 'Failed Items';
+
+  @override
+  String get mass_migration_exit => 'Exit Mass Migration';
+
+  @override
+  String get mass_migration_no_destination_match =>
+      'No destination match found';
+
+  @override
+  String mass_migration_query(Object query) {
+    return 'Query: $query';
+  }
+
+  @override
+  String get mass_migration_skip => 'Skip';
+
+  @override
+  String get mass_migration_loading => 'Loading...';
+
+  @override
+  String get mass_migration_choose_another_result => 'Choose another result';
+
+  @override
+  String get mass_migration_source_chapters => 'Source chapters';
+
+  @override
+  String get mass_migration_destination_chapters => 'Destination chapters';
+
+  @override
+  String mass_migration_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count chapters',
+      one: '1 chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_source_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count source chapters',
+      one: '1 source chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String mass_migration_destination_chapter_count(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count destination chapters',
+      one: '1 destination chapter',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get mass_migration_no_chapters_found => 'No chapters found.';
+
+  @override
+  String mass_migration_and_more_chapters(int count) {
+    return 'And $count more...';
+  }
+
+  @override
+  String get mass_migration_unknown_title => 'Unknown title';
+
+  @override
+  String get mass_migration_unknown_match => 'Unknown match';
+
+  @override
+  String get mass_migration_unknown_source => 'Unknown source';
+
+  @override
+  String get mass_migration_unknown_chapter => 'Unknown chapter';
+
   @override
   String get migrate_confirm => '迁移到另一个来源';
 

lib/modules/manga/detail/manga_detail_view.dart

@@ -631,6 +631,10 @@ class _MangaDetailViewState extends ConsumerState<MangaDetailView>
                                   value: 3,
                                   child: Text(l10n.migrate),
                                 ),
+                                PopupMenuItem<int>(
+                                  value: 6,
+                                  child: const Text('Mass migration'),
+                                ),
                                 if (!isLocalArchive)
                                   PopupMenuItem<int>(
                                     value: 4,
@@ -742,6 +746,12 @@ class _MangaDetailViewState extends ConsumerState<MangaDetailView>
                                     botToast("Failed to export metadata: $e");
                                   }
                                   break;
+                                case 6:
+                                  context.push(
+                                    "/massMigration",
+                                    extra: widget.manga,
+                                  );
+                                  break;
                               }
                             },
                           ),

lib/modules/manga/detail/widgets/migrate_screen.dart

@@ -7,19 +7,13 @@ import 'package:mangayomi/eval/model/m_manga.dart';
 import 'package:mangayomi/eval/model/m_pages.dart';
 import 'package:mangayomi/main.dart';
 import 'package:mangayomi/models/category.dart';
-import 'package:mangayomi/models/changed.dart';
-import 'package:mangayomi/models/chapter.dart';
-import 'package:mangayomi/models/history.dart';
 import 'package:mangayomi/models/manga.dart';
 import 'package:mangayomi/models/track_search.dart';
-import 'package:mangayomi/models/update.dart';
 import 'package:mangayomi/modules/library/widgets/search_text_form_field.dart';
-import 'package:mangayomi/modules/manga/detail/providers/isar_providers.dart';
+import 'package:mangayomi/modules/mass_migration/services/mass_migration_service.dart';
 import 'package:mangayomi/modules/manga/detail/providers/track_state_providers.dart';
-import 'package:mangayomi/modules/manga/detail/providers/update_manga_detail_providers.dart';
 import 'package:mangayomi/modules/manga/detail/widgets/chapter_filter_list_tile_widget.dart';
 import 'package:mangayomi/modules/more/settings/browse/providers/browse_state_provider.dart';
-import 'package:mangayomi/modules/more/settings/sync/providers/sync_providers.dart';
 import 'package:mangayomi/providers/l10n_providers.dart';
 import 'package:mangayomi/models/source.dart';
 import 'package:mangayomi/services/get_detail.dart';
@@ -629,103 +623,13 @@ class _MigrationMangaGlobalImageCardState
   }
 
   Future<void> _migrateManga(MManga preview) async {
-    String? historyChapter;
-    String? historyDate;
-    List<Chapter> chaptersProgress = [];
-    isar.writeTxnSync(() {
-      final histories = isar.historys
-          .filter()
-          .mangaIdEqualTo(widget.oldManga.id)
-          .sortByDate()
-          .findAllSync();
-      historyChapter = _extractChapterNumber(
-        histories.lastOrNull?.chapter.value?.name ?? "",
-      );
-      historyDate = histories.lastOrNull?.date;
-      for (var history in histories) {
-        isar.historys.deleteSync(history.id!);
-        ref
-            .read(synchingProvider(syncId: 1).notifier)
-            .addChangedPart(ActionType.removeHistory, history.id, "{}", false);
-      }
-      for (var chapter in widget.oldManga.chapters) {
-        chaptersProgress.add(chapter);
-        isar.updates
-            .filter()
-            .mangaIdEqualTo(chapter.mangaId)
-            .chapterNameEqualTo(chapter.name)
-            .deleteAllSync();
-        isar.chapters.deleteSync(chapter.id!);
-        ref
-            .read(synchingProvider(syncId: 1).notifier)
-            .addChangedPart(ActionType.removeChapter, chapter.id, "{}", false);
-      }
-      widget.oldManga.name = widget.manga.name;
-      widget.oldManga.link = widget.manga.link;
-      widget.oldManga.imageUrl = widget.manga.imageUrl;
-      widget.oldManga.lang = widget.source.lang;
-      widget.oldManga.source = widget.source.name;
-      widget.oldManga.sourceId = widget.source.id;
-      widget.oldManga.artist = preview.artist;
-      widget.oldManga.author = preview.author;
-      widget.oldManga.status = preview.status ?? widget.oldManga.status;
-      widget.oldManga.description = preview.description;
-      widget.oldManga.genre = preview.genre;
-      widget.oldManga.updatedAt = DateTime.now().millisecondsSinceEpoch;
-      isar.mangas.putSync(widget.oldManga);
-    });
-    await ref.read(
-      updateMangaDetailProvider(
-        mangaId: widget.oldManga.id,
-        isInit: false,
-      ).future,
+    await migrateLibraryItem(
+      ref: ref,
+      oldManga: widget.oldManga,
+      selectedManga: widget.manga,
+      preview: preview,
+      destinationSource: widget.source,
     );
-    isar.writeTxnSync(() {
-      for (var oldChapter in chaptersProgress) {
-        final chapter = isar.chapters
-            .filter()
-            .mangaIdEqualTo(widget.oldManga.id)
-            .nameContains(
-              _extractChapterNumber(oldChapter.name ?? "") ?? ".....",
-              caseSensitive: false,
-            )
-            .findFirstSync();
-        if (chapter != null) {
-          chapter.isBookmarked = oldChapter.isBookmarked;
-          chapter.lastPageRead = oldChapter.lastPageRead;
-          chapter.isRead = oldChapter.isRead;
-          isar.chapters.putSync(chapter);
-        }
-      }
-      final chapter = isar.chapters
-          .filter()
-          .mangaIdEqualTo(widget.oldManga.id)
-          .nameContains(historyChapter ?? ".....", caseSensitive: false)
-          .findFirstSync();
-      if (chapter != null) {
-        isar.historys.putSync(
-          History(
-            mangaId: widget.oldManga.id,
-            date:
-                historyDate ?? DateTime.now().millisecondsSinceEpoch.toString(),
-            itemType: widget.oldManga.itemType,
-            chapterId: chapter.id,
-          )..chapter.value = chapter,
-        );
-      }
-    });
-    ref.invalidate(getMangaDetailStreamProvider(mangaId: widget.oldManga.id!));
-  }
-
-  String? _extractChapterNumber(String chapterName) {
-    return RegExp(
-          r'\s*(\d+\.\d+)\s*',
-          multiLine: true,
-        ).firstMatch(chapterName)?.group(0) ??
-        RegExp(
-          r'\s*(\d+)\s*',
-          multiLine: true,
-        ).firstMatch(chapterName)?.group(0);
   }
 }
 

lib/modules/mass_migration/mass_migration_destination_screen.dart

@@ -0,0 +1,79 @@
+import 'package:flutter/material.dart';
+import 'package:mangayomi/models/source.dart';
+import 'package:mangayomi/modules/mass_migration/mass_migration_runner_screen.dart';
+import 'package:mangayomi/modules/mass_migration/models/mass_migration_models.dart';
+import 'package:mangayomi/modules/mass_migration/widgets/mass_migration_widgets.dart';
+import 'package:mangayomi/providers/l10n_providers.dart';
+import 'package:mangayomi/router/router.dart';
+import 'package:mangayomi/utils/language.dart';
+
+class MassMigrationDestinationScreen extends StatelessWidget {
+  const MassMigrationDestinationScreen({required this.sourceGroup, super.key});
+
+  final MassMigrationSourceGroup sourceGroup;
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = context.l10n;
+    final sources = buildMassMigrationDestinationSources(
+      sourceGroup: sourceGroup,
+    );
+
+    return Scaffold(
+      appBar: AppBar(title: Text(l10n.mass_migration_destination_source)),
+      body: sources.isEmpty
+          ? Center(
+              child: Padding(
+                padding: const EdgeInsets.all(24),
+                child: Text(l10n.mass_migration_no_destination_sources),
+              ),
+            )
+          : ListView.separated(
+              itemCount: sources.length,
+              separatorBuilder: (_, _) => const Divider(height: 1),
+              itemBuilder: (context, index) {
+                final source = sources[index];
+                return _DestinationSourceTile(
+                  source: source,
+                  onTap: () {
+                    Navigator.push(
+                      context,
+                      createRoute(
+                        page: MassMigrationRunnerScreen(
+                          sourceGroup: sourceGroup,
+                          destinationSource: source,
+                        ),
+                      ),
+                    );
+                  },
+                );
+              },
+            ),
+    );
+  }
+}
+
+class _DestinationSourceTile extends StatelessWidget {
+  const _DestinationSourceTile({required this.source, required this.onTap});
+
+  final Source source;
+  final VoidCallback onTap;
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = context.l10n;
+    return ListTile(
+      leading: MassMigrationSourceIcon(source: source),
+      title: Text(source.name ?? l10n.mass_migration_unknown_source),
+      subtitle: Text(
+        [
+          if ((source.lang ?? '').isNotEmpty)
+            completeLanguageName(source.lang!),
+          l10n.mass_migration_installed,
+        ].join(' • '),
+      ),
+      trailing: const Icon(Icons.chevron_right),
+      onTap: onTap,
+    );
+  }
+}

lib/modules/mass_migration/mass_migration_preview_screen.dart

@@ -0,0 +1,134 @@
+import 'package:flutter/material.dart';
+import 'package:mangayomi/modules/mass_migration/mass_migration_destination_screen.dart';
+import 'package:mangayomi/modules/mass_migration/models/mass_migration_models.dart';
+import 'package:mangayomi/modules/mass_migration/widgets/mass_migration_widgets.dart';
+import 'package:mangayomi/providers/l10n_providers.dart';
+import 'package:mangayomi/router/router.dart';
+import 'package:mangayomi/utils/language.dart';
+
+class MassMigrationPreviewScreen extends StatelessWidget {
+  const MassMigrationPreviewScreen({required this.sourceGroup, super.key});
+
+  final MassMigrationSourceGroup sourceGroup;
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = context.l10n;
+    return Scaffold(
+      appBar: AppBar(title: Text(l10n.mass_migration_preview_items)),
+      body: Column(
+        children: [
+          ListTile(
+            leading: MassMigrationSourceIcon(source: sourceGroup.source),
+            title: Text(sourceGroup.sourceName),
+            subtitle: Text(
+              [
+                if ((sourceGroup.lang ?? '').isNotEmpty)
+                  completeLanguageName(sourceGroup.lang!),
+                l10n.mass_migration_items_ready_for_review(sourceGroup.count),
+              ].join(' • '),
+            ),
+          ),
+          const Divider(height: 1),
+          Expanded(
+            child: ListView.separated(
+              itemCount: sourceGroup.items.length,
+              separatorBuilder: (_, _) => const Divider(height: 1),
+              itemBuilder: (context, index) {
+                final manga = sourceGroup.items[index];
+                return Padding(
+                  padding: const EdgeInsets.symmetric(
+                    horizontal: 12,
+                    vertical: 8,
+                  ),
+                  child: Card(
+                    child: Padding(
+                      padding: const EdgeInsets.all(12),
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Row(
+                            crossAxisAlignment: CrossAxisAlignment.start,
+                            children: [
+                              Text('${index + 1}'),
+                              const SizedBox(width: 12),
+                              MassMigrationCover(
+                                libraryItem: manga,
+                                source: sourceGroup.source,
+                              ),
+                              const SizedBox(width: 12),
+                              Expanded(
+                                child: Column(
+                                  crossAxisAlignment: CrossAxisAlignment.start,
+                                  children: [
+                                    Text(
+                                      manga.name ??
+                                          l10n.mass_migration_unknown_title,
+                                      style: Theme.of(
+                                        context,
+                                      ).textTheme.titleMedium,
+                                    ),
+                                    const SizedBox(height: 6),
+                                    Text(
+                                      [
+                                        if ((manga.author ?? '')
+                                            .trim()
+                                            .isNotEmpty)
+                                          manga.author!,
+                                        if ((manga.artist ?? '')
+                                            .trim()
+                                            .isNotEmpty)
+                                          manga.artist!,
+                                        l10n.mass_migration_chapter_count(
+                                          manga.chapters.length,
+                                        ),
+                                      ].join(' • '),
+                                    ),
+                                  ],
+                                ),
+                              ),
+                            ],
+                          ),
+                          const SizedBox(height: 8),
+                          MassMigrationChapterSection(
+                            title: l10n.mass_migration_source_chapters,
+                            chapters: manga.chapters
+                                .map(
+                                  (chapter) =>
+                                      chapter.name ??
+                                      l10n.mass_migration_unknown_chapter,
+                                )
+                                .toList(),
+                          ),
+                        ],
+                      ),
+                    ),
+                  ),
+                );
+              },
+            ),
+          ),
+          Padding(
+            padding: const EdgeInsets.all(16),
+            child: SizedBox(
+              width: double.infinity,
+              child: FilledButton(
+                onPressed: () {
+                  Navigator.push(
+                    context,
+                    createRoute(
+                      page: MassMigrationDestinationScreen(
+                        sourceGroup: sourceGroup,
+                      ),
+                    ),
+                  );
+                },
+                child: Text(l10n.mass_migration_select_destination_source),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/modules/mass_migration/mass_migration_runner_screen.dart

@@ -0,0 +1,783 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:mangayomi/eval/model/m_manga.dart';
+import 'package:mangayomi/models/source.dart';
+import 'package:mangayomi/modules/mass_migration/models/mass_migration_models.dart';
+import 'package:mangayomi/modules/mass_migration/services/mass_migration_service.dart';
+import 'package:mangayomi/modules/mass_migration/widgets/mass_migration_widgets.dart';
+import 'package:mangayomi/providers/l10n_providers.dart';
+import 'package:mangayomi/services/get_detail.dart';
+import 'package:mangayomi/utils/language.dart';
+
+enum _MassMigrationPhase { matching, review, applying, summary }
+
+class MassMigrationRunnerScreen extends ConsumerStatefulWidget {
+  const MassMigrationRunnerScreen({
+    required this.sourceGroup,
+    required this.destinationSource,
+    super.key,
+  });
+
+  final MassMigrationSourceGroup sourceGroup;
+  final Source destinationSource;
+
+  @override
+  ConsumerState<MassMigrationRunnerScreen> createState() =>
+      _MassMigrationRunnerScreenState();
+}
+
+class _MassMigrationRunnerScreenState
+    extends ConsumerState<MassMigrationRunnerScreen> {
+  _MassMigrationPhase _phase = _MassMigrationPhase.matching;
+  int _currentIndex = 0;
+  int _migratedCount = 0;
+  int _skippedCount = 0;
+  final List<String> _failedItems = [];
+  final Set<int> _loadingCandidateIndexes = {};
+  final List<MassMigrationResolvedItem> _resolvedItems = [];
+  bool _isWaitingForNextItem = false;
+
+  @override
+  void initState() {
+    super.initState();
+    unawaited(_processAllItems());
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = context.l10n;
+    return Scaffold(
+      appBar: AppBar(title: Text(l10n.mass_migration_title)),
+      body: switch (_phase) {
+        _MassMigrationPhase.matching => _buildMatchingPhase(context),
+        _MassMigrationPhase.review => _buildReviewPhase(context),
+        _MassMigrationPhase.applying => _buildApplyingPhase(context),
+        _MassMigrationPhase.summary => _buildSummaryPhase(context),
+      },
+    );
+  }
+
+  Widget _buildMatchingPhase(BuildContext context) {
+    final l10n = context.l10n;
+    final total = widget.sourceGroup.items.length;
+    final currentItem = widget.sourceGroup.items[_currentIndex];
+    return Padding(
+      padding: const EdgeInsets.all(16),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Row(
+            children: [
+              MassMigrationSourceIcon(source: widget.destinationSource),
+              const SizedBox(width: 12),
+              Expanded(
+                child: Text(
+                  l10n.mass_migration_finding_matches(
+                    widget.destinationSource.name ?? '',
+                    completeLanguageName(widget.destinationSource.lang ?? ''),
+                  ),
+                ),
+              ),
+            ],
+          ),
+          const SizedBox(height: 16),
+          LinearProgressIndicator(value: (_currentIndex + 1) / total),
+          const SizedBox(height: 8),
+          Text(l10n.mass_migration_processing_item(_currentIndex + 1, total)),
+          const SizedBox(height: 16),
+          Card(
+            child: Padding(
+              padding: const EdgeInsets.all(16),
+              child: Row(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  MassMigrationCover(
+                    libraryItem: currentItem,
+                    source: widget.sourceGroup.source,
+                  ),
+                  const SizedBox(width: 12),
+                  Expanded(
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Text(
+                          currentItem.name ?? l10n.mass_migration_unknown_title,
+                          style: Theme.of(context).textTheme.titleMedium,
+                        ),
+                        const SizedBox(height: 6),
+                        Text(
+                          [
+                            widget.sourceGroup.sourceName,
+                            l10n.mass_migration_chapter_count(
+                              currentItem.chapters.length,
+                            ),
+                          ].join(' • '),
+                        ),
+                      ],
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ),
+          if (_isWaitingForNextItem) ...[
+            const SizedBox(height: 12),
+            Text(l10n.mass_migration_waiting_next_item),
+          ],
+          if (_resolvedItems.isNotEmpty) ...[
+            const SizedBox(height: 16),
+            Text(
+              l10n.mass_migration_matched_so_far(
+                _resolvedItems.where((item) => item.hasMatch).length,
+              ),
+            ),
+            Text(
+              l10n.mass_migration_no_match_count(
+                _resolvedItems.where((item) => !item.hasMatch).length,
+              ),
+            ),
+          ],
+        ],
+      ),
+    );
+  }
+
+  Widget _buildReviewPhase(BuildContext context) {
+    final l10n = context.l10n;
+    final matchedCount = _resolvedItems.where((item) => item.hasMatch).length;
+    final selectedCount = _resolvedItems
+        .where((item) => item.shouldMigrate)
+        .length;
+    final noMatchCount = _resolvedItems.where((item) => !item.hasMatch).length;
+
+    return Column(
+      children: [
+        Padding(
+          padding: const EdgeInsets.all(16),
+          child: Card(
+            child: Padding(
+              padding: const EdgeInsets.all(16),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Row(
+                    children: [
+                      MassMigrationSourceIcon(source: widget.destinationSource),
+                      const SizedBox(width: 12),
+                      Expanded(
+                        child: Text(
+                          l10n.mass_migration_review_matches(
+                            widget.destinationSource.name ?? '',
+                          ),
+                          style: Theme.of(context).textTheme.titleMedium,
+                        ),
+                      ),
+                    ],
+                  ),
+                  const SizedBox(height: 12),
+                  Text(l10n.mass_migration_found_matches(matchedCount)),
+                  Text(l10n.mass_migration_no_matches(noMatchCount)),
+                  Text(l10n.mass_migration_selected_to_migrate(selectedCount)),
+                ],
+              ),
+            ),
+          ),
+        ),
+        Expanded(
+          child: ListView.builder(
+            padding: const EdgeInsets.only(bottom: 16),
+            itemCount: _resolvedItems.length,
+            itemBuilder: (context, index) {
+              final item = _resolvedItems[index];
+              return Padding(
+                padding: const EdgeInsets.symmetric(
+                  horizontal: 16,
+                  vertical: 6,
+                ),
+                child: _buildResolvedItemCard(context, item, index),
+              );
+            },
+          ),
+        ),
+        Padding(
+          padding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
+          child: SizedBox(
+            width: double.infinity,
+            child: FilledButton(
+              onPressed: _startMigration,
+              child: Text(
+                selectedCount == 0
+                    ? l10n.mass_migration_finish_review
+                    : l10n.mass_migration_migrate_selected(selectedCount),
+              ),
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildApplyingPhase(BuildContext context) {
+    final l10n = context.l10n;
+    final selectedItems = _resolvedItems
+        .where((item) => item.shouldMigrate)
+        .toList();
+    final total = selectedItems.isEmpty ? 1 : selectedItems.length;
+    final currentItem = selectedItems.isEmpty
+        ? null
+        : selectedItems[_currentIndex.clamp(0, selectedItems.length - 1)];
+
+    return Padding(
+      padding: const EdgeInsets.all(16),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Text(
+            l10n.mass_migration_migrating_selected(
+              widget.destinationSource.name ?? '',
+            ),
+            style: Theme.of(context).textTheme.titleMedium,
+          ),
+          const SizedBox(height: 16),
+          LinearProgressIndicator(
+            value: selectedItems.isEmpty ? 1 : (_currentIndex + 1) / total,
+          ),
+          const SizedBox(height: 8),
+          Text(
+            selectedItems.isEmpty
+                ? l10n.mass_migration_no_items_selected
+                : l10n.mass_migration_migrating_item(_currentIndex + 1, total),
+          ),
+          const SizedBox(height: 16),
+          if (currentItem != null)
+            Card(
+              child: Padding(
+                padding: const EdgeInsets.all(16),
+                child: Row(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    MassMigrationCover(
+                      libraryItem: currentItem.sourceItem,
+                      source: widget.sourceGroup.source,
+                    ),
+                    const SizedBox(width: 12),
+                    const Icon(Icons.arrow_forward_rounded),
+                    const SizedBox(width: 12),
+                    MassMigrationCover(
+                      remoteItem: currentItem.selectedCandidate,
+                      source: widget.destinationSource,
+                    ),
+                    const SizedBox(width: 12),
+                    Expanded(
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Text(
+                            currentItem.sourceItem.name ??
+                                l10n.mass_migration_unknown_title,
+                            style: Theme.of(context).textTheme.titleMedium,
+                          ),
+                          const SizedBox(height: 6),
+                          Text(
+                            currentItem.selectedCandidate?.name ??
+                                l10n.mass_migration_unknown_match,
+                          ),
+                        ],
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+          if (_isWaitingForNextItem) ...[
+            const SizedBox(height: 12),
+            Text(l10n.mass_migration_waiting_next_migration),
+          ],
+        ],
+      ),
+    );
+  }
+
+  Widget _buildSummaryPhase(BuildContext context) {
+    final l10n = context.l10n;
+    final total = widget.sourceGroup.items.length;
+    final matchedCount = _resolvedItems.where((item) => item.hasMatch).length;
+    final successTone = _failedItems.isEmpty ? Colors.green : Colors.orange;
+
+    return Container(
+      decoration: BoxDecoration(
+        color: Theme.of(context).scaffoldBackgroundColor,
+      ),
+      child: ListView(
+        padding: const EdgeInsets.all(16),
+        children: [
+          Container(
+            padding: const EdgeInsets.all(20),
+            decoration: BoxDecoration(
+              borderRadius: BorderRadius.circular(20),
+              color: Theme.of(context).cardColor,
+              boxShadow: [
+                BoxShadow(
+                  color: Theme.of(context).shadowColor.withValues(alpha: 0.08),
+                  blurRadius: 18,
+                  offset: const Offset(0, 8),
+                ),
+              ],
+            ),
+            child: Row(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Container(
+                  width: 56,
+                  height: 56,
+                  decoration: BoxDecoration(
+                    color: successTone.withValues(alpha: 0.14),
+                    borderRadius: BorderRadius.circular(16),
+                  ),
+                  child: Icon(
+                    _failedItems.isEmpty
+                        ? Icons.task_alt_rounded
+                        : Icons.done_all_rounded,
+                    color: successTone,
+                    size: 30,
+                  ),
+                ),
+                const SizedBox(width: 16),
+                Expanded(
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      Text(
+                        l10n.mass_migration_complete,
+                        style: Theme.of(context).textTheme.headlineSmall,
+                      ),
+                      const SizedBox(height: 8),
+                      Text(
+                        _failedItems.isEmpty
+                            ? l10n.mass_migration_complete_success_message
+                            : l10n.mass_migration_complete_partial_message,
+                        style: Theme.of(context).textTheme.bodyMedium,
+                      ),
+                      const SizedBox(height: 12),
+                      Text(
+                        l10n.mass_migration_route_summary(
+                          widget.sourceGroup.sourceName,
+                          widget.destinationSource.name ?? '',
+                        ),
+                        style: Theme.of(context).textTheme.labelLarge,
+                      ),
+                    ],
+                  ),
+                ),
+              ],
+            ),
+          ),
+          const SizedBox(height: 16),
+          Wrap(
+            spacing: 12,
+            runSpacing: 12,
+            children: [
+              _SummaryStatCard(
+                label: l10n.mass_migration_processed,
+                value: '$total',
+              ),
+              _SummaryStatCard(
+                label: l10n.mass_migration_matched,
+                value: '$matchedCount',
+              ),
+              _SummaryStatCard(
+                label: l10n.mass_migration_migrated,
+                value: '$_migratedCount',
+              ),
+              _SummaryStatCard(
+                label: l10n.mass_migration_skipped,
+                value: '$_skippedCount',
+              ),
+              _SummaryStatCard(
+                label: l10n.mass_migration_failed,
+                value: '${_failedItems.length}',
+              ),
+            ],
+          ),
+          if (_failedItems.isNotEmpty) ...[
+            const SizedBox(height: 20),
+            Container(
+              padding: const EdgeInsets.all(16),
+              decoration: BoxDecoration(
+                color: Theme.of(context).cardColor,
+                borderRadius: BorderRadius.circular(18),
+              ),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(
+                    l10n.mass_migration_failed_items,
+                    style: Theme.of(context).textTheme.titleMedium,
+                  ),
+                  const SizedBox(height: 12),
+                  for (final item in _failedItems)
+                    Padding(
+                      padding: const EdgeInsets.only(bottom: 8),
+                      child: Row(
+                        children: [
+                          const Icon(
+                            Icons.error_outline_rounded,
+                            size: 18,
+                            color: Colors.orange,
+                          ),
+                          const SizedBox(width: 8),
+                          Expanded(child: Text(item)),
+                        ],
+                      ),
+                    ),
+                ],
+              ),
+            ),
+          ],
+          const SizedBox(height: 24),
+          FilledButton.icon(
+            onPressed: _exitMassMigrationFlow,
+            icon: const Icon(Icons.exit_to_app_rounded),
+            label: Text(l10n.mass_migration_exit),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildResolvedItemCard(
+    BuildContext context,
+    MassMigrationResolvedItem item,
+    int index,
+  ) {
+    final l10n = context.l10n;
+    final destinationChapterNames =
+        item.destinationPreview?.chapters
+            ?.map(
+              (chapter) => chapter.name ?? l10n.mass_migration_unknown_chapter,
+            )
+            .toList() ??
+        const <String>[];
+    final sourceChapterNames = item.sourceItem.chapters
+        .map((chapter) => chapter.name ?? l10n.mass_migration_unknown_chapter)
+        .toList();
+
+    return Card(
+      child: Padding(
+        padding: const EdgeInsets.all(16),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Row(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                MassMigrationCover(
+                  libraryItem: item.sourceItem,
+                  source: widget.sourceGroup.source,
+                ),
+                const SizedBox(width: 12),
+                const Icon(Icons.arrow_forward_rounded),
+                const SizedBox(width: 12),
+                MassMigrationCover(
+                  remoteItem: item.selectedCandidate,
+                  source: widget.destinationSource,
+                ),
+                const SizedBox(width: 12),
+                Expanded(
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      Text(
+                        item.sourceItem.name ??
+                            l10n.mass_migration_unknown_title,
+                        style: Theme.of(context).textTheme.titleMedium,
+                      ),
+                      const SizedBox(height: 6),
+                      Text(
+                        item.hasMatch
+                            ? (item.selectedCandidate?.name ??
+                                  l10n.mass_migration_unknown_match)
+                            : l10n.mass_migration_no_destination_match,
+                      ),
+                      const SizedBox(height: 6),
+                      Text(
+                        [
+                          l10n.mass_migration_source_chapter_count(
+                            item.sourceItem.chapters.length,
+                          ),
+                          l10n.mass_migration_destination_chapter_count(
+                            destinationChapterNames.length,
+                          ),
+                          if ((item.searchResult.usedQuery ?? '').isNotEmpty)
+                            l10n.mass_migration_query(
+                              item.searchResult.usedQuery!,
+                            ),
+                        ].join(' • '),
+                      ),
+                    ],
+                  ),
+                ),
+              ],
+            ),
+            if ((item.errorMessage ?? '').isNotEmpty) ...[
+              const SizedBox(height: 8),
+              Text(item.errorMessage!),
+            ],
+            const SizedBox(height: 12),
+            Row(
+              children: [
+                ChoiceChip(
+                  label: Text(l10n.mass_migration_skip),
+                  selected: !item.shouldMigrate,
+                  onSelected: (_) => _updateShouldMigrate(index, false),
+                ),
+                const SizedBox(width: 8),
+                ChoiceChip(
+                  label: Text(l10n.migrate),
+                  selected: item.shouldMigrate,
+                  onSelected: item.canMigrate
+                      ? (_) => _updateShouldMigrate(index, true)
+                      : null,
+                ),
+                const Spacer(),
+                if (item.searchResult.candidates.length > 1)
+                  TextButton(
+                    onPressed: _loadingCandidateIndexes.contains(index)
+                        ? null
+                        : () => _pickAnotherCandidate(index),
+                    child: Text(
+                      _loadingCandidateIndexes.contains(index)
+                          ? l10n.mass_migration_loading
+                          : l10n.mass_migration_choose_another_result,
+                    ),
+                  ),
+              ],
+            ),
+            const SizedBox(height: 8),
+            MassMigrationChapterSection(
+              title: l10n.mass_migration_source_chapters,
+              chapters: sourceChapterNames,
+            ),
+            MassMigrationChapterSection(
+              title: l10n.mass_migration_destination_chapters,
+              chapters: destinationChapterNames,
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Future<void> _processAllItems() async {
+    for (var i = 0; i < widget.sourceGroup.items.length; i++) {
+      if (!mounted) return;
+      setState(() {
+        _currentIndex = i;
+      });
+      final resolvedItem = await resolveMassMigrationItem(
+        ref: ref,
+        manga: widget.sourceGroup.items[i],
+        destinationSource: widget.destinationSource,
+      );
+      if (!mounted) return;
+      setState(() {
+        _resolvedItems.add(resolvedItem);
+      });
+      if (i < widget.sourceGroup.items.length - 1) {
+        setState(() {
+          _isWaitingForNextItem = true;
+        });
+        await Future.delayed(const Duration(seconds: 2));
+        if (!mounted) return;
+        setState(() {
+          _isWaitingForNextItem = false;
+        });
+      }
+    }
+
+    if (!mounted) return;
+    setState(() {
+      _phase = _MassMigrationPhase.review;
+      _currentIndex = 0;
+    });
+  }
+
+  void _updateShouldMigrate(int index, bool shouldMigrate) {
+    setState(() {
+      _resolvedItems[index] = _resolvedItems[index].copyWith(
+        shouldMigrate: shouldMigrate && _resolvedItems[index].canMigrate,
+      );
+    });
+  }
+
+  Future<void> _pickAnotherCandidate(int index) async {
+    final item = _resolvedItems[index];
+    final selected = await showModalBottomSheet<MManga>(
+      context: context,
+      builder: (context) {
+        return SafeArea(
+          child: ListView.separated(
+            itemCount: item.searchResult.candidates.length,
+            separatorBuilder: (_, _) => const Divider(height: 1),
+            itemBuilder: (context, candidateIndex) {
+              final l10n = context.l10n;
+              final candidate = item.searchResult.candidates[candidateIndex];
+              return ListTile(
+                title: Text(
+                  candidate.name ?? l10n.mass_migration_unknown_title,
+                ),
+                subtitle: Text(
+                  [
+                    if ((candidate.author ?? '').trim().isNotEmpty)
+                      candidate.author!,
+                    if ((candidate.artist ?? '').trim().isNotEmpty)
+                      candidate.artist!,
+                  ].join(' • '),
+                ),
+                onTap: () => Navigator.pop(context, candidate),
+              );
+            },
+          ),
+        );
+      },
+    );
+
+    if (selected == null || !mounted) return;
+
+    setState(() {
+      _loadingCandidateIndexes.add(index);
+    });
+
+    try {
+      final preview = await ref.read(
+        getDetailProvider(
+          url: selected.link!,
+          source: widget.destinationSource,
+        ).future,
+      );
+      if (!mounted) return;
+      setState(() {
+        _resolvedItems[index] = item.copyWith(
+          selectedCandidate: selected,
+          destinationPreview: preview,
+          errorMessage: null,
+          shouldMigrate: true,
+          keepErrorMessage: false,
+        );
+      });
+    } catch (error) {
+      if (!mounted) return;
+      setState(() {
+        _resolvedItems[index] = item.copyWith(
+          selectedCandidate: selected,
+          destinationPreview: null,
+          errorMessage: error.toString(),
+          shouldMigrate: false,
+          keepDestinationPreview: false,
+          keepErrorMessage: false,
+        );
+      });
+    } finally {
+      if (mounted) {
+        setState(() {
+          _loadingCandidateIndexes.remove(index);
+        });
+      }
+    }
+  }
+
+  Future<void> _startMigration() async {
+    final selectedItems = _resolvedItems
+        .where((item) => item.shouldMigrate)
+        .toList();
+    if (selectedItems.isEmpty) {
+      setState(() {
+        _skippedCount = widget.sourceGroup.items.length;
+        _phase = _MassMigrationPhase.summary;
+      });
+      return;
+    }
+
+    setState(() {
+      _phase = _MassMigrationPhase.applying;
+      _migratedCount = 0;
+      _skippedCount = widget.sourceGroup.items.length - selectedItems.length;
+      _failedItems.clear();
+      _currentIndex = 0;
+    });
+
+    for (var i = 0; i < selectedItems.length; i++) {
+      final item = selectedItems[i];
+      if (!mounted) return;
+      setState(() {
+        _currentIndex = i;
+      });
+
+      try {
+        await migrateLibraryItem(
+          ref: ref,
+          oldManga: item.sourceItem,
+          selectedManga: item.selectedCandidate!,
+          preview: item.destinationPreview!,
+          destinationSource: widget.destinationSource,
+        );
+        if (!mounted) return;
+        setState(() {
+          _migratedCount += 1;
+        });
+      } catch (error) {
+        if (!mounted) return;
+        setState(() {
+          _failedItems.add(
+            item.sourceItem.name ?? context.l10n.mass_migration_unknown_title,
+          );
+        });
+      }
+    }
+
+    if (!mounted) return;
+    setState(() {
+      _phase = _MassMigrationPhase.summary;
+    });
+  }
+
+  void _exitMassMigrationFlow() {
+    final navigator = Navigator.of(context);
+    var pops = 0;
+    while (navigator.canPop() && pops < 4) {
+      navigator.pop();
+      pops++;
+    }
+  }
+}
+
+class _SummaryStatCard extends StatelessWidget {
+  const _SummaryStatCard({required this.label, required this.value});
+
+  final String label;
+  final String value;
+
+  @override
+  Widget build(BuildContext context) {
+    return SizedBox(
+      width: 156,
+      child: Container(
+        padding: const EdgeInsets.all(16),
+        decoration: BoxDecoration(
+          color: Theme.of(context).cardColor,
+          borderRadius: BorderRadius.circular(18),
+        ),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(value, style: Theme.of(context).textTheme.headlineSmall),
+            const SizedBox(height: 6),
+            Text(label, style: Theme.of(context).textTheme.bodyMedium),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/modules/mass_migration/mass_migration_source_selection_screen.dart

@@ -0,0 +1,66 @@
+import 'package:flutter/material.dart';
+import 'package:mangayomi/models/manga.dart';
+import 'package:mangayomi/modules/mass_migration/mass_migration_preview_screen.dart';
+import 'package:mangayomi/modules/mass_migration/models/mass_migration_models.dart';
+import 'package:mangayomi/modules/mass_migration/widgets/mass_migration_widgets.dart';
+import 'package:mangayomi/providers/l10n_providers.dart';
+import 'package:mangayomi/router/router.dart';
+import 'package:mangayomi/utils/language.dart';
+
+class MassMigrationSourceSelectionScreen extends StatelessWidget {
+  const MassMigrationSourceSelectionScreen({
+    required this.initialManga,
+    super.key,
+  });
+
+  final Manga initialManga;
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = context.l10n;
+    final sourceGroups = buildMassMigrationSourceGroups(
+      itemType: initialManga.itemType,
+      prioritizedManga: initialManga,
+    );
+
+    return Scaffold(
+      appBar: AppBar(title: Text(l10n.mass_migration_title)),
+      body: sourceGroups.isEmpty
+          ? Center(
+              child: Padding(
+                padding: const EdgeInsets.all(24),
+                child: Text(l10n.mass_migration_no_library_items),
+              ),
+            )
+          : ListView.separated(
+              itemCount: sourceGroups.length,
+              separatorBuilder: (_, _) => const Divider(height: 1),
+              itemBuilder: (context, index) {
+                final sourceGroup = sourceGroups[index];
+                return ListTile(
+                  leading: MassMigrationSourceIcon(source: sourceGroup.source),
+                  title: Text(sourceGroup.sourceName),
+                  subtitle: Text(
+                    [
+                      if ((sourceGroup.lang ?? '').isNotEmpty)
+                        completeLanguageName(sourceGroup.lang!),
+                      l10n.mass_migration_item_count(sourceGroup.count),
+                    ].join(' • '),
+                  ),
+                  trailing: const Icon(Icons.chevron_right),
+                  onTap: () {
+                    Navigator.push(
+                      context,
+                      createRoute(
+                        page: MassMigrationPreviewScreen(
+                          sourceGroup: sourceGroup,
+                        ),
+                      ),
+                    );
+                  },
+                );
+              },
+            ),
+    );
+  }
+}

lib/modules/mass_migration/models/mass_migration_models.dart

@@ -0,0 +1,177 @@
+import 'package:isar_community/isar.dart';
+import 'package:mangayomi/eval/model/m_manga.dart';
+import 'package:mangayomi/main.dart';
+import 'package:mangayomi/models/manga.dart';
+import 'package:mangayomi/models/source.dart';
+
+class MassMigrationSourceGroup {
+  const MassMigrationSourceGroup({
+    required this.sourceName,
+    required this.itemType,
+    required this.items,
+    this.source,
+    this.lang,
+    this.sourceId,
+  });
+
+  final String sourceName;
+  final Source? source;
+  final String? lang;
+  final int? sourceId;
+  final ItemType itemType;
+  final List<Manga> items;
+
+  int get count => items.length;
+}
+
+class MassMigrationSearchResult {
+  const MassMigrationSearchResult({
+    required this.queries,
+    required this.candidates,
+    this.selected,
+    this.usedQuery,
+  });
+
+  final List<String> queries;
+  final List<MManga> candidates;
+  final MManga? selected;
+  final String? usedQuery;
+
+  bool get hasMatch => selected != null;
+}
+
+class MassMigrationResolvedItem {
+  const MassMigrationResolvedItem({
+    required this.sourceItem,
+    required this.searchResult,
+    this.selectedCandidate,
+    this.destinationPreview,
+    this.errorMessage,
+    this.shouldMigrate = false,
+  });
+
+  final Manga sourceItem;
+  final MassMigrationSearchResult searchResult;
+  final MManga? selectedCandidate;
+  final MManga? destinationPreview;
+  final String? errorMessage;
+  final bool shouldMigrate;
+
+  bool get hasMatch => selectedCandidate != null;
+  bool get canMigrate =>
+      selectedCandidate != null &&
+      destinationPreview != null &&
+      (errorMessage == null || errorMessage!.isEmpty);
+
+  MassMigrationResolvedItem copyWith({
+    MManga? selectedCandidate,
+    MManga? destinationPreview,
+    String? errorMessage,
+    bool? shouldMigrate,
+    bool keepSelectedCandidate = true,
+    bool keepDestinationPreview = true,
+    bool keepErrorMessage = true,
+  }) {
+    return MassMigrationResolvedItem(
+      sourceItem: sourceItem,
+      searchResult: searchResult,
+      selectedCandidate: keepSelectedCandidate
+          ? selectedCandidate ?? this.selectedCandidate
+          : selectedCandidate,
+      destinationPreview: keepDestinationPreview
+          ? destinationPreview ?? this.destinationPreview
+          : destinationPreview,
+      errorMessage: keepErrorMessage
+          ? errorMessage ?? this.errorMessage
+          : errorMessage,
+      shouldMigrate: shouldMigrate ?? this.shouldMigrate,
+    );
+  }
+}
+
+List<MassMigrationSourceGroup> buildMassMigrationSourceGroups({
+  required ItemType itemType,
+  Manga? prioritizedManga,
+}) {
+  final libraryItems = isar.mangas
+      .filter()
+      .favoriteEqualTo(true)
+      .itemTypeEqualTo(itemType)
+      .findAllSync();
+
+  final grouped = <String, List<Manga>>{};
+  for (final manga in libraryItems) {
+    final sourceName = (manga.source ?? '').trim();
+    if (sourceName.isEmpty) continue;
+    grouped.putIfAbsent(sourceName, () => []).add(manga);
+  }
+
+  final groups = grouped.entries.map((entry) {
+    final items = [...entry.value]
+      ..sort(
+        (left, right) => (left.name ?? '').toLowerCase().compareTo(
+          (right.name ?? '').toLowerCase(),
+        ),
+      );
+    final first = items.first;
+    final source = first.sourceId != null
+        ? isar.sources.getSync(first.sourceId!)
+        : isar.sources
+              .filter()
+              .nameEqualTo(first.source)
+              .langEqualTo(first.lang)
+              .findFirstSync();
+    return MassMigrationSourceGroup(
+      sourceName: entry.key,
+      source: source,
+      lang: first.lang,
+      sourceId: first.sourceId,
+      itemType: itemType,
+      items: items,
+    );
+  }).toList();
+
+  groups.sort((left, right) {
+    final prioritizedSource = prioritizedManga?.source?.trim().toLowerCase();
+    final leftPriority = left.sourceName.toLowerCase() == prioritizedSource;
+    final rightPriority = right.sourceName.toLowerCase() == prioritizedSource;
+    if (leftPriority != rightPriority) {
+      return leftPriority ? -1 : 1;
+    }
+    final nameCompare = left.sourceName.toLowerCase().compareTo(
+      right.sourceName.toLowerCase(),
+    );
+    if (nameCompare != 0) return nameCompare;
+    return right.count.compareTo(left.count);
+  });
+
+  return groups;
+}
+
+List<Source> buildMassMigrationDestinationSources({
+  required MassMigrationSourceGroup sourceGroup,
+}) {
+  final sources = isar.sources
+      .filter()
+      .isAddedEqualTo(true)
+      .itemTypeEqualTo(sourceGroup.itemType)
+      .findAllSync()
+      .where(
+        (source) =>
+            source.sourceCode != null &&
+            !(source.name == sourceGroup.sourceName &&
+                source.lang == sourceGroup.lang),
+      )
+      .toList();
+
+  sources.sort((left, right) {
+    final nameCompare = (left.name ?? '').toLowerCase().compareTo(
+      (right.name ?? '').toLowerCase(),
+    );
+    if (nameCompare != 0) return nameCompare;
+    return (left.lang ?? '').toLowerCase().compareTo(
+      (right.lang ?? '').toLowerCase(),
+    );
+  });
+  return sources;
+}

lib/modules/mass_migration/services/mass_migration_service.dart

@@ -0,0 +1,488 @@
+import 'dart:collection';
+
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:isar_community/isar.dart';
+import 'package:mangayomi/eval/model/m_manga.dart';
+import 'package:mangayomi/main.dart';
+import 'package:mangayomi/models/changed.dart';
+import 'package:mangayomi/models/chapter.dart';
+import 'package:mangayomi/models/history.dart';
+import 'package:mangayomi/models/manga.dart';
+import 'package:mangayomi/models/source.dart';
+import 'package:mangayomi/models/track.dart';
+import 'package:mangayomi/models/update.dart';
+import 'package:mangayomi/modules/mass_migration/models/mass_migration_models.dart';
+import 'package:mangayomi/modules/manga/detail/providers/isar_providers.dart';
+import 'package:mangayomi/modules/more/settings/sync/providers/sync_providers.dart';
+import 'package:mangayomi/services/get_detail.dart';
+import 'package:mangayomi/services/search_.dart';
+import 'package:mangayomi/utils/extensions/string_extensions.dart';
+
+Future<void> migrateLibraryItem({
+  required WidgetRef ref,
+  required Manga oldManga,
+  required MManga selectedManga,
+  required MManga preview,
+  required Source destinationSource,
+}) async {
+  final migrationSnapshot = _captureMigrationSnapshot(
+    ref: ref,
+    oldManga: oldManga,
+  );
+  _rewriteMigratedItemMetadata(
+    oldManga: oldManga,
+    selectedManga: selectedManga,
+    preview: preview,
+    destinationSource: destinationSource,
+  );
+  _syncMigratedMangaFromPreview(
+    oldManga: oldManga,
+    preview: preview,
+    destinationSource: destinationSource,
+  );
+  _restoreMigrationProgress(oldManga: oldManga, snapshot: migrationSnapshot);
+  ref.invalidate(getMangaDetailStreamProvider(mangaId: oldManga.id!));
+}
+
+class _MigrationSnapshot {
+  const _MigrationSnapshot({
+    required this.chaptersProgress,
+    this.historyChapter,
+    this.historyDate,
+  });
+
+  final List<Chapter> chaptersProgress;
+  final String? historyChapter;
+  final String? historyDate;
+}
+
+_MigrationSnapshot _captureMigrationSnapshot({
+  required WidgetRef ref,
+  required Manga oldManga,
+}) {
+  String? historyChapter;
+  String? historyDate;
+  final chaptersProgress = <Chapter>[];
+
+  isar.writeTxnSync(() {
+    final histories = isar.historys
+        .filter()
+        .mangaIdEqualTo(oldManga.id)
+        .sortByDate()
+        .findAllSync();
+    historyChapter = extractMigrationChapterNumber(
+      histories.lastOrNull?.chapter.value?.name ?? '',
+    );
+    historyDate = histories.lastOrNull?.date;
+    for (final history in histories) {
+      isar.historys.deleteSync(history.id!);
+      ref
+          .read(synchingProvider(syncId: 1).notifier)
+          .addChangedPart(ActionType.removeHistory, history.id, '{}', false);
+    }
+    for (final chapter in oldManga.chapters) {
+      chaptersProgress.add(chapter);
+      isar.updates
+          .filter()
+          .mangaIdEqualTo(chapter.mangaId)
+          .chapterNameEqualTo(chapter.name)
+          .deleteAllSync();
+      isar.chapters.deleteSync(chapter.id!);
+      ref
+          .read(synchingProvider(syncId: 1).notifier)
+          .addChangedPart(ActionType.removeChapter, chapter.id, '{}', false);
+    }
+  });
+
+  return _MigrationSnapshot(
+    chaptersProgress: chaptersProgress,
+    historyChapter: historyChapter,
+    historyDate: historyDate,
+  );
+}
+
+void _rewriteMigratedItemMetadata({
+  required Manga oldManga,
+  required MManga selectedManga,
+  required MManga preview,
+  required Source destinationSource,
+}) {
+  isar.writeTxnSync(() {
+    oldManga.name = selectedManga.name;
+    oldManga.link = selectedManga.link;
+    oldManga.imageUrl = selectedManga.imageUrl;
+    oldManga.lang = destinationSource.lang;
+    oldManga.source = destinationSource.name;
+    oldManga.sourceId = destinationSource.id;
+    oldManga.artist = preview.artist;
+    oldManga.author = preview.author;
+    oldManga.status = preview.status ?? oldManga.status;
+    oldManga.description = preview.description;
+    oldManga.genre = preview.genre;
+    oldManga.updatedAt = DateTime.now().millisecondsSinceEpoch;
+    isar.mangas.putSync(oldManga);
+  });
+}
+
+void _syncMigratedMangaFromPreview({
+  required Manga oldManga,
+  required MManga preview,
+  required Source destinationSource,
+}) {
+  final genre =
+      preview.genre
+          ?.map((entry) => entry.toString().trim())
+          .where((entry) => entry.isNotEmpty)
+          .toSet()
+          .toList() ??
+      [];
+
+  final previewImageUrl = _trimmedOrDefault(
+    preview.imageUrl,
+    oldManga.imageUrl,
+  );
+  oldManga
+    ..imageUrl = previewImageUrl == null
+        ? null
+        : previewImageUrl.startsWith('http')
+        ? previewImageUrl
+        : '${destinationSource.baseUrl ?? ''}/${previewImageUrl.getUrlWithoutDomain}'
+    ..name = _trimmedOrDefault(preview.name, oldManga.name)
+    ..genre = genre.isEmpty ? oldManga.genre ?? [] : genre
+    ..author = _trimmedOrDefault(preview.author, oldManga.author) ?? ''
+    ..artist = _trimmedOrDefault(preview.artist, oldManga.artist) ?? ''
+    ..status = preview.status == Status.unknown
+        ? oldManga.status
+        : preview.status ?? Status.unknown
+    ..description =
+        _trimmedOrDefault(preview.description, oldManga.description) ?? ''
+    ..link = _trimmedOrDefault(preview.link, oldManga.link)
+    ..source = destinationSource.name
+    ..lang = destinationSource.lang
+    ..itemType = destinationSource.itemType
+    ..lastUpdate = DateTime.now().millisecondsSinceEpoch
+    ..updatedAt = DateTime.now().millisecondsSinceEpoch;
+
+  isar.writeTxnSync(() {
+    final mangaId = isar.mangas.putSync(oldManga);
+    final previewChapters = preview.chapters ?? const [];
+    final chapters = previewChapters
+        .map(
+          (previewChapter) => Chapter(
+            name: previewChapter.name ?? '',
+            url: previewChapter.url?.trim() ?? '',
+            dateUpload: previewChapter.dateUpload == null
+                ? DateTime.now().millisecondsSinceEpoch.toString()
+                : previewChapter.dateUpload.toString(),
+            scanlator: previewChapter.scanlator ?? '',
+            mangaId: mangaId,
+            updatedAt: DateTime.now().millisecondsSinceEpoch,
+            isFiller: previewChapter.isFiller,
+            thumbnailUrl: previewChapter.thumbnailUrl,
+            description: previewChapter.description,
+            downloadSize: previewChapter.downloadSize,
+            duration: previewChapter.duration,
+          )..manga.value = oldManga,
+        )
+        .toList();
+    for (final chapter in chapters.reversed) {
+      isar.chapters.putSync(chapter);
+      chapter.manga.saveSync();
+    }
+  });
+}
+
+void _restoreMigrationProgress({
+  required Manga oldManga,
+  required _MigrationSnapshot snapshot,
+}) {
+  isar.writeTxnSync(() {
+    for (final oldChapter in snapshot.chaptersProgress) {
+      final chapter = isar.chapters
+          .filter()
+          .mangaIdEqualTo(oldManga.id)
+          .nameContains(
+            extractMigrationChapterNumber(oldChapter.name ?? '') ?? '.....',
+            caseSensitive: false,
+          )
+          .findFirstSync();
+      if (chapter != null) {
+        chapter.isBookmarked = oldChapter.isBookmarked;
+        chapter.lastPageRead = oldChapter.lastPageRead;
+        chapter.isRead = oldChapter.isRead;
+        isar.chapters.putSync(chapter);
+      }
+    }
+
+    final historyChapter = isar.chapters
+        .filter()
+        .mangaIdEqualTo(oldManga.id)
+        .nameContains(snapshot.historyChapter ?? '.....', caseSensitive: false)
+        .findFirstSync();
+    if (historyChapter != null) {
+      isar.historys.putSync(
+        History(
+          mangaId: oldManga.id,
+          date:
+              snapshot.historyDate ??
+              DateTime.now().millisecondsSinceEpoch.toString(),
+          itemType: oldManga.itemType,
+          chapterId: historyChapter.id,
+        )..chapter.value = historyChapter,
+      );
+    }
+  });
+}
+
+Future<MassMigrationSearchResult> findBestMassMigrationMatch({
+  required WidgetRef ref,
+  required Manga manga,
+  required Source destinationSource,
+}) async {
+  final queries = buildMassMigrationQueries(manga);
+
+  for (final query in queries) {
+    final pages = await ref.read(
+      searchProvider(
+        source: destinationSource,
+        page: 1,
+        query: query,
+        filterList: const [],
+      ).future,
+    );
+    final candidates = pages?.list ?? const <MManga>[];
+    if (candidates.isEmpty) continue;
+    return MassMigrationSearchResult(
+      queries: queries,
+      usedQuery: query,
+      candidates: candidates,
+      selected: _selectBestCandidate(
+        manga: manga,
+        queries: queries,
+        candidates: candidates,
+      ),
+    );
+  }
+
+  return MassMigrationSearchResult(queries: queries, candidates: const []);
+}
+
+Future<MassMigrationResolvedItem> resolveMassMigrationItem({
+  required WidgetRef ref,
+  required Manga manga,
+  required Source destinationSource,
+}) async {
+  try {
+    final searchResult = await _resolveSearchResult(
+      ref: ref,
+      manga: manga,
+      destinationSource: destinationSource,
+    );
+    return await _resolveMatchedPreview(
+      ref: ref,
+      manga: manga,
+      destinationSource: destinationSource,
+      searchResult: searchResult,
+    );
+  } catch (error) {
+    return _buildErroredResolvedItem(
+      sourceItem: manga,
+      errorMessage: error.toString(),
+    );
+  }
+}
+
+Future<MassMigrationSearchResult> _resolveSearchResult({
+  required WidgetRef ref,
+  required Manga manga,
+  required Source destinationSource,
+}) {
+  return findBestMassMigrationMatch(
+    ref: ref,
+    manga: manga,
+    destinationSource: destinationSource,
+  );
+}
+
+Future<MassMigrationResolvedItem> _resolveMatchedPreview({
+  required WidgetRef ref,
+  required Manga manga,
+  required Source destinationSource,
+  required MassMigrationSearchResult searchResult,
+}) async {
+  final selectedCandidate = searchResult.selected;
+  if (selectedCandidate == null) {
+    return MassMigrationResolvedItem(
+      sourceItem: manga,
+      searchResult: searchResult,
+    );
+  }
+
+  try {
+    final preview = await ref.read(
+      getDetailProvider(
+        url: selectedCandidate.link!,
+        source: destinationSource,
+      ).future,
+    );
+    return MassMigrationResolvedItem(
+      sourceItem: manga,
+      searchResult: searchResult,
+      selectedCandidate: selectedCandidate,
+      destinationPreview: preview,
+      shouldMigrate: true,
+    );
+  } catch (error) {
+    return MassMigrationResolvedItem(
+      sourceItem: manga,
+      searchResult: searchResult,
+      selectedCandidate: selectedCandidate,
+      errorMessage: error.toString(),
+    );
+  }
+}
+
+MassMigrationResolvedItem _buildErroredResolvedItem({
+  required Manga sourceItem,
+  required String errorMessage,
+}) {
+  return MassMigrationResolvedItem(
+    sourceItem: sourceItem,
+    searchResult: MassMigrationSearchResult(
+      queries: buildMassMigrationQueries(sourceItem),
+      candidates: const [],
+    ),
+    errorMessage: errorMessage,
+  );
+}
+
+List<String> buildMassMigrationQueries(Manga manga) {
+  final queries = <String>{};
+
+  void addQuery(String? value) {
+    final cleaned = value?.trim();
+    if (cleaned == null || cleaned.isEmpty) return;
+    queries.add(cleaned);
+  }
+
+  addQuery(manga.name);
+  for (final track
+      in isar.tracks.filter().mangaIdEqualTo(manga.id).findAllSync()) {
+    addQuery(track.title);
+  }
+
+  final name = manga.name?.trim();
+  if (name != null && name.isNotEmpty) {
+    addQuery(name.split(RegExp(r'\s*[:\-|/]\s*')).first);
+    final beforeParenthesis = name.split('(').first.trim();
+    if (beforeParenthesis.isNotEmpty && beforeParenthesis != name) {
+      addQuery(beforeParenthesis);
+    }
+    final matches = RegExp(r'\(([^)]+)\)').allMatches(name);
+    for (final match in matches) {
+      addQuery(match.group(1));
+    }
+  }
+
+  return queries.toList();
+}
+
+String? extractMigrationChapterNumber(String chapterName) {
+  return RegExp(
+        r'\s*(\d+\.\d+)\s*',
+        multiLine: true,
+      ).firstMatch(chapterName)?.group(0) ??
+      RegExp(r'\s*(\d+)\s*', multiLine: true).firstMatch(chapterName)?.group(0);
+}
+
+MManga _selectBestCandidate({
+  required Manga manga,
+  required List<String> queries,
+  required List<MManga> candidates,
+}) {
+  candidates.sort((left, right) {
+    final leftScore = _scoreCandidate(
+      manga: manga,
+      queries: queries,
+      candidate: left,
+    );
+    final rightScore = _scoreCandidate(
+      manga: manga,
+      queries: queries,
+      candidate: right,
+    );
+    return rightScore.compareTo(leftScore);
+  });
+  return candidates.first;
+}
+
+double _scoreCandidate({
+  required Manga manga,
+  required List<String> queries,
+  required MManga candidate,
+}) {
+  final candidateName = _normalizeTitle(candidate.name);
+  if (candidateName.isEmpty) return 0;
+
+  var score = 0.0;
+  for (final query in queries) {
+    final normalizedQuery = _normalizeTitle(query);
+    if (normalizedQuery.isEmpty) continue;
+    if (normalizedQuery == candidateName) {
+      score = score < 100 ? 100 : score;
+      continue;
+    }
+    if (candidateName.contains(normalizedQuery) ||
+        normalizedQuery.contains(candidateName)) {
+      final ratio = normalizedQuery.length < candidateName.length
+          ? normalizedQuery.length / candidateName.length
+          : candidateName.length / normalizedQuery.length;
+      score = score < (80 * ratio) ? 80 * ratio : score;
+    }
+    final tokenScore = _tokenOverlapScore(normalizedQuery, candidateName);
+    score = score < tokenScore ? tokenScore : score;
+  }
+
+  final sourceAuthor = _normalizeTitle(manga.author);
+  final sourceArtist = _normalizeTitle(manga.artist);
+  final candidateAuthor = _normalizeTitle(candidate.author);
+  final candidateArtist = _normalizeTitle(candidate.artist);
+  if (sourceAuthor.isNotEmpty &&
+      (sourceAuthor == candidateAuthor || sourceAuthor == candidateArtist)) {
+    score += 15;
+  }
+  if (sourceArtist.isNotEmpty &&
+      (sourceArtist == candidateArtist || sourceArtist == candidateAuthor)) {
+    score += 10;
+  }
+
+  return score;
+}
+
+double _tokenOverlapScore(String left, String right) {
+  final leftTokens = left.split(' ').where((token) => token.isNotEmpty).toSet();
+  final rightTokens = right
+      .split(' ')
+      .where((token) => token.isNotEmpty)
+      .toSet();
+  if (leftTokens.isEmpty || rightTokens.isEmpty) return 0;
+  final overlap = leftTokens.intersection(rightTokens).length;
+  return (overlap / leftTokens.union(rightTokens).length) * 70;
+}
+
+String _normalizeTitle(String? value) {
+  return value
+          ?.toLowerCase()
+          .replaceAll(RegExp(r'[^a-z0-9\s]'), ' ')
+          .replaceAll(RegExp(r'\b(the|a|an)\b'), ' ')
+          .replaceAll(RegExp(r'\s+'), ' ')
+          .trim() ??
+      '';
+}
+
+String? _trimmedOrDefault(String? value, String? defaultValue) {
+  if (value?.trim().isNotEmpty ?? false) {
+    return value!.trim();
+  }
+  return defaultValue;
+}

lib/modules/mass_migration/widgets/mass_migration_widgets.dart

@@ -0,0 +1,170 @@
+import 'dart:typed_data';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:mangayomi/eval/model/m_manga.dart';
+import 'package:mangayomi/models/manga.dart';
+import 'package:mangayomi/models/source.dart';
+import 'package:mangayomi/providers/l10n_providers.dart';
+import 'package:mangayomi/utils/cached_network.dart';
+import 'package:mangayomi/utils/constant.dart';
+import 'package:mangayomi/utils/headers.dart';
+
+class MassMigrationSourceIcon extends StatelessWidget {
+  const MassMigrationSourceIcon({required this.source, super.key});
+
+  final Source? source;
+
+  @override
+  Widget build(BuildContext context) {
+    final iconUrl = source?.iconUrl ?? '';
+    return Container(
+      height: 37,
+      width: 37,
+      decoration: BoxDecoration(
+        color: Theme.of(context).secondaryHeaderColor.withValues(alpha: 0.5),
+        borderRadius: BorderRadius.circular(5),
+      ),
+      child: iconUrl.isEmpty
+          ? const Icon(Icons.extension_rounded)
+          : cachedNetworkImage(
+              imageUrl: iconUrl,
+              fit: BoxFit.contain,
+              width: 37,
+              height: 37,
+              errorWidget: const SizedBox(
+                width: 37,
+                height: 37,
+                child: Center(child: Icon(Icons.extension_rounded)),
+              ),
+              useCustomNetworkImage: false,
+            ),
+    );
+  }
+}
+
+class MassMigrationCover extends ConsumerWidget {
+  const MassMigrationCover({
+    this.libraryItem,
+    this.remoteItem,
+    this.source,
+    this.width = 72,
+    this.height = 104,
+    super.key,
+  });
+
+  final Manga? libraryItem;
+  final MManga? remoteItem;
+  final Source? source;
+  final double width;
+  final double height;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final customCover = libraryItem?.customCoverImage;
+    if (customCover != null && customCover.isNotEmpty) {
+      return ClipRRect(
+        borderRadius: BorderRadius.circular(8),
+        child: Image.memory(
+          Uint8List.fromList(customCover),
+          width: width,
+          height: height,
+          fit: BoxFit.cover,
+        ),
+      );
+    }
+
+    final imageUrl = toImgUrl(
+      remoteItem?.imageUrl ??
+          libraryItem?.customCoverFromTracker ??
+          libraryItem?.imageUrl ??
+          '',
+    );
+    final headers =
+        source == null ||
+            (source!.name?.isEmpty ?? true) ||
+            (source!.lang?.isEmpty ?? true)
+        ? null
+        : ref.watch(
+            headersProvider(
+              source: source!.name!,
+              lang: source!.lang!,
+              sourceId: source!.id,
+            ),
+          );
+
+    return ClipRRect(
+      borderRadius: BorderRadius.circular(8),
+      child: cachedNetworkImage(
+        headers: headers,
+        imageUrl: imageUrl,
+        width: width,
+        height: height,
+        fit: BoxFit.cover,
+        errorWidget: Container(
+          width: width,
+          height: height,
+          color: Theme.of(context).secondaryHeaderColor.withValues(alpha: 0.4),
+          child: const Icon(Icons.image_not_supported_outlined),
+        ),
+      ),
+    );
+  }
+}
+
+class MassMigrationChapterSection extends StatelessWidget {
+  const MassMigrationChapterSection({
+    required this.title,
+    required this.chapters,
+    super.key,
+  });
+
+  final String title;
+  final List<String> chapters;
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = context.l10n;
+    return ExpansionTile(
+      tilePadding: EdgeInsets.zero,
+      childrenPadding: EdgeInsets.zero,
+      dense: true,
+      title: Text('$title (${chapters.length})'),
+      children: [
+        if (chapters.isEmpty)
+          Padding(
+            padding: const EdgeInsets.only(bottom: 12),
+            child: Align(
+              alignment: Alignment.centerLeft,
+              child: Text(l10n.mass_migration_no_chapters_found),
+            ),
+          )
+        else
+          ...chapters
+              .take(12)
+              .map(
+                (chapter) => ListTile(
+                  dense: true,
+                  contentPadding: EdgeInsets.zero,
+                  title: Text(
+                    chapter,
+                    style: const TextStyle(fontSize: 13),
+                    maxLines: 2,
+                    overflow: TextOverflow.ellipsis,
+                  ),
+                ),
+              ),
+        if (chapters.length > 12)
+          Padding(
+            padding: const EdgeInsets.only(bottom: 12),
+            child: Align(
+              alignment: Alignment.centerLeft,
+              child: Text(
+                l10n.mass_migration_and_more_chapters(chapters.length - 12),
+              ),
+            ),
+          ),
+      ],
+    );
+  }
+}

lib/router/router.dart

@@ -16,6 +16,7 @@ import 'package:mangayomi/modules/browse/extension/widgets/create_extension.dart
 import 'package:mangayomi/modules/browse/sources/sources_filter_screen.dart';
 import 'package:mangayomi/modules/calendar/calendar_screen.dart';
 import 'package:mangayomi/modules/manga/detail/widgets/migrate_screen.dart';
+import 'package:mangayomi/modules/mass_migration/mass_migration_source_selection_screen.dart';
 import 'package:mangayomi/modules/manga/detail/widgets/recommendation_screen.dart';
 import 'package:mangayomi/modules/manga/detail/widgets/watch_order_screen.dart';
 import 'package:mangayomi/modules/more/data_and_storage/create_backup.dart';
@@ -254,6 +255,11 @@ class RouterNotifier extends ChangeNotifier {
       name: "migrate",
       builder: (manga) => MigrationScreen(manga: manga),
     ),
+    _genericRoute<Manga>(
+      name: "massMigration",
+      builder: (manga) =>
+          MassMigrationSourceSelectionScreen(initialManga: manga),
+    ),
     _genericRoute<(Manga, TrackSearch)>(
       name: "migrate/tracker",
       builder: (data) => MigrationScreen(manga: data.$1, trackSearch: data.$2),