New Setting: Mark duplicate chapter as read

When this setting is turned on, the app will automatically mark chapters as read if they have the same chapter number as a chapter you've already read.

This is useful for sources where:

- multiple scanlators upload the same chapter number
- duplicate entries appear due to different naming formats
- a series has repeated or alternative releases of the same chapter

With the setting enabled, you won’t have to manually mark each duplicate as read.

lib/l10n/app_en.arb

@@ -537,6 +537,7 @@
   "video_audio_info": "Preferred languages, pitch correction, audio channels",
   "player": "Player",
   "markEpisodeAsSeenSetting": "At what point to mark the episode as seen",
+  "mark_duplicate_chapters_read": "Mark duplicate chapter numbers as read",
   "default_skip_intro_length": "Default Skip intro length",
   "default_playback_speed_length": "Default Playback speed length",
   "updateProgressAfterReading": "Update progress after reading",

lib/l10n/generated/app_localizations.dart

@@ -2513,6 +2513,12 @@ abstract class AppLocalizations {
   /// **'At what point to mark the episode as seen'**
   String get markEpisodeAsSeenSetting;
 
+  /// No description provided for @mark_duplicate_chapters_read.
+  ///
+  /// In en, this message translates to:
+  /// **'Mark duplicate chapter numbers as read'**
+  String get mark_duplicate_chapters_read;
+
   /// No description provided for @default_skip_intro_length.
   ///
   /// In en, this message translates to:

lib/l10n/generated/app_localizations_ar.dart

@@ -1361,6 +1361,10 @@ class AppLocalizationsAr extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'في أي نقطة لوضع علامة على الحلقة كمشاهدة';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length => 'طول تخطي المقدمة الافتراضي';
 

lib/l10n/generated/app_localizations_as.dart

@@ -1348,6 +1348,10 @@ class AppLocalizationsAs extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'খণ্ডটো কেতিয়া দেখা বুলি চিহ্নিত কৰিব';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length => 'ডিফল্ট ইনট্ৰ\' এৰি দিয়াৰ দৈৰ্ঘ্য';
 

lib/l10n/generated/app_localizations_de.dart

@@ -1352,6 +1352,10 @@ class AppLocalizationsDe extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'Zu welchem Zeitpunkt die Episode als gesehen markieren';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length =>
       'Standardlänge für Intro überspringen';

lib/l10n/generated/app_localizations_en.dart

@@ -1347,6 +1347,10 @@ class AppLocalizationsEn extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'At what point to mark the episode as seen';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length => 'Default Skip intro length';
 

lib/l10n/generated/app_localizations_es.dart

@@ -1357,6 +1357,10 @@ class AppLocalizationsEs extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'En qué punto marcar el episodio como visto';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length =>
       'Duración predeterminada para saltar la introducción';

lib/l10n/generated/app_localizations_fr.dart

@@ -1359,6 +1359,10 @@ class AppLocalizationsFr extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'À quel moment marquer l\'épisode comme vu';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length =>
       'Longueur par défaut du passage de l\'intro';

lib/l10n/generated/app_localizations_hi.dart

@@ -1347,6 +1347,10 @@ class AppLocalizationsHi extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'एपिसोड को कब देखा गया के रूप में चिह्नित करना है';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length => 'डिफ़ॉल्ट परिचय छोड़ने की अवधि';
 

lib/l10n/generated/app_localizations_id.dart

@@ -1351,6 +1351,10 @@ class AppLocalizationsId extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'Pada titik mana menandai episode sebagai terlihat';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length => 'Panjang lewati intro default';
 

lib/l10n/generated/app_localizations_it.dart

@@ -1358,6 +1358,10 @@ class AppLocalizationsIt extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'In quale momento contrassegnare l\'episodio come visto';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length =>
       'Durata predefinita per saltare l\'introduzione';

lib/l10n/generated/app_localizations_ja.dart

@@ -1332,6 +1332,10 @@ class AppLocalizationsJa extends AppLocalizations {
   @override
   String get markEpisodeAsSeenSetting => 'エピソードを視聴済みにするタイミング';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length => 'デフォルトイントロスキップ長';
 

lib/l10n/generated/app_localizations_pt.dart

@@ -1355,6 +1355,10 @@ class AppLocalizationsPt extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'Em que ponto marcar o episódio como visto';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length =>
       'Duração padrão para pular a introdução';

lib/l10n/generated/app_localizations_ru.dart

@@ -1368,6 +1368,10 @@ class AppLocalizationsRu extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'В какой момент отметить эпизод как просмотренный';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length =>
       'Стандартная длина пропуска вступления';

lib/l10n/generated/app_localizations_th.dart

@@ -1347,6 +1347,10 @@ class AppLocalizationsTh extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'กำหนดจุดที่จะทำเครื่องหมายตอนว่าดูแล้ว';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length => 'ค่าพื้นฐานความยาวการเข้าอินโทร';
 

lib/l10n/generated/app_localizations_tr.dart

@@ -1349,6 +1349,10 @@ class AppLocalizationsTr extends AppLocalizations {
   String get markEpisodeAsSeenSetting =>
       'Bölümün izlendiği olarak işaretleneceği nokta';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length => 'Varsayılan Giriş Atla süresi';
 

lib/l10n/generated/app_localizations_zh.dart

@@ -1316,6 +1316,10 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get markEpisodeAsSeenSetting => '标记剧集为已看的时间点';
 
+  @override
+  String get mark_duplicate_chapters_read =>
+      'Mark duplicate chapter numbers as read';
+
   @override
   String get default_skip_intro_length => '默认跳过介绍长度';
 

lib/models/settings.dart

@@ -336,6 +336,8 @@ class Settings {
 
   bool? showPageGaps;
 
+  bool? autoReadDuplicateChapters;
+
   bool? invertColors;
 
   bool? grayscale;
@@ -513,6 +515,7 @@ class Settings {
     this.keepScreenOnReader = true,
     this.webtoonSidePadding = 0,
     this.showPageGaps = true,
+    this.autoReadDuplicateChapters = false,
     this.invertColors = false,
     this.grayscale = false,
     this.readerBrightness = 0.0,
@@ -796,6 +799,7 @@ class Settings {
     keepScreenOnReader = json['keepScreenOnReader'];
     webtoonSidePadding = json['webtoonSidePadding'];
     showPageGaps = json['showPageGaps'];
+    autoReadDuplicateChapters = json['autoReadDuplicateChapters'];
     invertColors = json['invertColors'];
     grayscale = json['grayscale'];
     readerBrightness = json['readerBrightness']?.toDouble();
@@ -985,6 +989,7 @@ class Settings {
     'keepScreenOnReader': keepScreenOnReader,
     'webtoonSidePadding': webtoonSidePadding,
     'showPageGaps': showPageGaps,
+    'autoReadDuplicateChapters': autoReadDuplicateChapters,
     'invertColors': invertColors,
     'grayscale': grayscale,
     'readerBrightness': readerBrightness,

lib/modules/anime/providers/anime_player_controller_provider.g.dart

@@ -59,7 +59,7 @@ final class AnimeStreamControllerProvider
 }
 
 String _$animeStreamControllerHash() =>
-    r'0a85358dcd4e3d7823c253ffbeccce8cf2612175';
+    r'fd3e6030dccc06be7ccd4b9564476a3587de401f';
 
 final class AnimeStreamControllerFamily extends $Family
     with

lib/modules/manga/detail/providers/update_manga_detail_providers.g.dart

@@ -64,7 +64,7 @@ final class UpdateMangaDetailProvider
   }
 }
 
-String _$updateMangaDetailHash() => r'd29f8980f7545dc57a112fd57ea5c045b36b34fe';
+String _$updateMangaDetailHash() => r'7a5595f307535c2fed5b174c98ce56c0fdedf5d6';
 
 final class UpdateMangaDetailFamily extends $Family
     with

lib/modules/manga/reader/providers/reader_controller_provider.dart

@@ -2,6 +2,8 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/misc.dart';
 import 'package:mangayomi/main.dart';
 import 'package:mangayomi/models/chapter.dart';
+import 'package:mangayomi/modules/more/settings/reader/providers/reader_state_provider.dart';
+import 'package:mangayomi/utils/chapter_recognition.dart';
 import 'package:mangayomi/modules/manga/reader/mixins/chapter_reader_settings_mixin.dart';
 import 'package:mangayomi/modules/manga/reader/mixins/chapter_controller_mixin.dart';
 import 'package:mangayomi/models/settings.dart';
@@ -204,17 +206,45 @@ class ReaderController extends _$ReaderController
           ..chapterId = chapter.id
           ..index = isRead ? 0 : newIndex,
       );
+      final autoReadDuplChap = ref.read(autoReadDuplicateChaptersStateProvider);
+      final now = DateTime.now().millisecondsSinceEpoch;
+      // When the chapter is finished, mark every other scanlation of the same
+      // chapter number as read too, in the same transaction.
+      final List<Chapter> siblings = [];
+      if (isRead && autoReadDuplChap) {
+        final manga = chapter.manga.value;
+        if (manga != null) {
+          final chapterNumber = ChapterRecognition().parseChapterNumber(
+            manga.name!,
+            chapter.name!,
+          );
+          for (final c in manga.chapters) {
+            if (c.id == chapter.id || (c.isRead ?? false)) continue;
+            final n = ChapterRecognition().parseChapterNumber(
+              manga.name!,
+              c.name!,
+            );
+            if (n == chapterNumber) {
+              c.isRead = true;
+              c.lastPageRead = '1';
+              c.updatedAt = now;
+              siblings.add(c);
+            }
+          }
+        }
+      }
       final chap = chapter;
       isar.writeTxnSync(() {
         isar.settings.putSync(
           getIsarSetting()
             ..chapterPageIndexList = chapterPageIndexs
-            ..updatedAt = DateTime.now().millisecondsSinceEpoch,
+            ..updatedAt = now,
         );
         chap.isRead = isRead;
         chap.lastPageRead = isRead ? '1' : (newIndex + 1).toString();
-        chap.updatedAt = DateTime.now().millisecondsSinceEpoch;
+        chap.updatedAt = now;
         isar.chapters.putSync(chap);
+        if (siblings.isNotEmpty) isar.chapters.putAllSync(siblings);
       });
       onSettingsMutated();
       if (isRead) {

lib/modules/manga/reader/providers/reader_controller_provider.g.dart

@@ -147,7 +147,7 @@ final class ReaderControllerProvider
   }
 }
 
-String _$readerControllerHash() => r'adab728fa21939302d0f928b11be204e8e8a0527';
+String _$readerControllerHash() => r'f129a22656f06082d217f2364697f3fc68668b64';
 
 final class ReaderControllerFamily extends $Family
     with

lib/modules/more/about/providers/check_for_update.g.dart

@@ -63,7 +63,7 @@ final class CheckForUpdateProvider
   }
 }
 
-String _$checkForUpdateHash() => r'644316334ac3e95d37f54d7197d744c9de1260b6';
+String _$checkForUpdateHash() => r'8064f08768f4d98997201a2f07ba160c721a6a3f';
 
 final class CheckForUpdateFamily extends $Family
     with

lib/modules/more/data_and_storage/providers/restore.g.dart

@@ -301,7 +301,7 @@ final class RestoreTachiBkBackupProvider
 }
 
 String _$restoreTachiBkBackupHash() =>
-    r'54434eaa9dc875d03ffb1dcf62ad2d7971649d61';
+    r'0f121d94021eb9a56d0689240dbcefd49f5a2a79';
 
 final class RestoreTachiBkBackupFamily extends $Family
     with $FunctionalFamilyOverride<void, (String, BackupType)> {

lib/modules/more/settings/reader/providers/reader_state_provider.dart

@@ -526,6 +526,26 @@ class ShowPageGapsState extends _$ShowPageGapsState {
   }
 }
 
+@riverpod
+class AutoReadDuplicateChaptersState extends _$AutoReadDuplicateChaptersState {
+  @override
+  bool build() {
+    return isar.settings.getSync(227)!.autoReadDuplicateChapters ?? false;
+  }
+
+  void set(bool value) {
+    final settings = isar.settings.getSync(227);
+    state = value;
+    isar.writeTxnSync(
+      () => isar.settings.putSync(
+        settings!
+          ..autoReadDuplicateChapters = value
+          ..updatedAt = DateTime.now().millisecondsSinceEpoch,
+      ),
+    );
+  }
+}
+
 @riverpod
 class InvertColorsState extends _$InvertColorsState {
   @override

lib/modules/more/settings/reader/providers/reader_state_provider.g.dart

@@ -1338,6 +1338,60 @@ abstract class _$ShowPageGapsState extends $Notifier<bool> {
   }
 }
 
+@ProviderFor(AutoReadDuplicateChaptersState)
+final autoReadDuplicateChaptersStateProvider =
+    AutoReadDuplicateChaptersStateProvider._();
+
+final class AutoReadDuplicateChaptersStateProvider
+    extends $NotifierProvider<AutoReadDuplicateChaptersState, bool> {
+  AutoReadDuplicateChaptersStateProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'autoReadDuplicateChaptersStateProvider',
+        isAutoDispose: true,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$autoReadDuplicateChaptersStateHash();
+
+  @$internal
+  @override
+  AutoReadDuplicateChaptersState create() => AutoReadDuplicateChaptersState();
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(bool value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<bool>(value),
+    );
+  }
+}
+
+String _$autoReadDuplicateChaptersStateHash() =>
+    r'288816e17fefa753c690cc43a40cfbcf5352b9df';
+
+abstract class _$AutoReadDuplicateChaptersState extends $Notifier<bool> {
+  bool build();
+  @$mustCallSuper
+  @override
+  void runBuild() {
+    final ref = this.ref as $Ref<bool, bool>;
+    final element =
+        ref.element
+            as $ClassProviderElement<
+              AnyNotifier<bool, bool>,
+              bool,
+              Object?,
+              Object?
+            >;
+    element.handleCreate(ref, build);
+  }
+}
+
 @ProviderFor(InvertColorsState)
 final invertColorsStateProvider = InvertColorsStateProvider._();
 

lib/modules/more/settings/reader/reader_screen.dart

@@ -28,6 +28,7 @@ class ReaderScreen extends ConsumerWidget {
 
     final cropBorders = ref.watch(cropBordersStateProvider);
     final keepScreenOn = ref.watch(keepScreenOnReaderStateProvider);
+    final autoReadDuplChap = ref.watch(autoReadDuplicateChaptersStateProvider);
     final showPageGaps = ref.watch(showPageGapsStateProvider);
     final webtoonSidePadding = ref.watch(webtoonSidePaddingStateProvider);
     final navigationLayout = ref.watch(readerNavigationLayoutStateProvider);
@@ -411,6 +412,15 @@ class ReaderScreen extends ConsumerWidget {
                 ref.read(showPageGapsStateProvider.notifier).set(value);
               },
             ),
+            SwitchListTile(
+              value: autoReadDuplChap,
+              title: Text(context.l10n.mark_duplicate_chapters_read),
+              onChanged: (value) {
+                ref
+                    .read(autoReadDuplicateChaptersStateProvider.notifier)
+                    .set(value);
+              },
+            ),
             ListTile(
               title: Text(context.l10n.webtoon_side_padding),
               subtitle: Slider(

lib/modules/novel/novel_reader_controller_provider.g.dart

@@ -59,7 +59,7 @@ final class NovelReaderControllerProvider
 }
 
 String _$novelReaderControllerHash() =>
-    r'9133fe86e1c4bbdd47d9fa38e75310ecb8ede325';
+    r'c9171314d6c24d3f7a88bd7a258ab409f769dbb5';
 
 final class NovelReaderControllerFamily extends $Family
     with