first step to loop mode implementation

lib/domain/entities/loop_mode.dart

@@ -0,0 +1,5 @@
+enum LoopMode {
+  off,
+  one,
+  all
+}

lib/domain/repositories/audio_repository.dart

@@ -1,6 +1,7 @@
 import 'package:dartz/dartz.dart';
 
 import '../../core/error/failures.dart';
+import '../entities/loop_mode.dart';
 import '../entities/playback_state.dart';
 import '../entities/shuffle_mode.dart';
 import '../entities/song.dart';
@@ -19,6 +20,9 @@ abstract class AudioRepository {
   Future<Either<Failure, void>> skipToNext();
   Future<Either<Failure, void>> skipToPrevious();
   Future<Either<Failure, void>> setShuffleMode(ShuffleMode shuffleMode);
+
+  Future<void> setLoopMode(LoopMode loopMode);
+
   Future<Either<Failure, void>> shuffleAll();
   Future<Either<Failure, void>> addToQueue(Song song);
   Future<Either<Failure, void>> moveQueueItem(int oldIndex, int newIndex);

lib/domain/repositories/music_data_repository.dart

@@ -3,6 +3,7 @@ import 'package:dartz/dartz.dart';
 import '../../core/error/failures.dart';
 import '../entities/album.dart';
 import '../entities/artist.dart';
+import '../entities/loop_mode.dart';
 import '../entities/song.dart';
 
 abstract class MusicDataRepository {
@@ -10,6 +11,8 @@ abstract class MusicDataRepository {
   Stream<List<Song>> getAlbumSongStream(Album album);
   Stream<List<Song>> get queueStream;
   Stream<int> get currentIndexStream;
+
+  Stream<LoopMode> get loopModeStream;
   
   Future<Either<Failure, List<Song>>> getSongs();
   Future<Either<Failure, List<Song>>> getSongsFromAlbum(Album album);

lib/presentation/state/audio_store.dart

@@ -1,11 +1,12 @@
 import 'package:meta/meta.dart';
 import 'package:mobx/mobx.dart';
-import 'package:mucke/domain/repositories/music_data_repository.dart';
 
+import '../../domain/entities/loop_mode.dart';
 import '../../domain/entities/playback_state.dart';
 import '../../domain/entities/shuffle_mode.dart';
 import '../../domain/entities/song.dart';
 import '../../domain/repositories/audio_repository.dart';
+import '../../domain/repositories/music_data_repository.dart';
 
 part 'audio_store.g.dart';
 
@@ -30,6 +31,8 @@ abstract class _AudioStore with Store {
     shuffleModeStream =
         _audioRepository.shuffleModeStream.asObservable(initialValue: ShuffleMode.none);
 
+    loopModeStream = _musicDataRepository.loopModeStream.asObservable();
+
     playbackStateStream = _audioRepository.playbackStateStream.asObservable();
   }
 
@@ -70,6 +73,9 @@ abstract class _AudioStore with Store {
   @observable
   ObservableStream<ShuffleMode> shuffleModeStream;
 
+  @observable
+  ObservableStream<LoopMode> loopModeStream;
+
   @action
   Future<void> playSong(int index, List<Song> songList) async {
     _audioRepository.playSong(index, songList);
@@ -99,6 +105,11 @@ abstract class _AudioStore with Store {
     _audioRepository.setShuffleMode(shuffleMode);
   }
 
+  Future<void> setLoopMode(LoopMode loopMode) async {
+    print('setLoopMode');
+    _audioRepository.setLoopMode(loopMode);
+  }
+
   Future<void> shuffleAll() async {
     _audioRepository.shuffleAll();
   }

lib/presentation/state/audio_store.g.dart

@@ -110,6 +110,21 @@ mixin _$AudioStore on _AudioStore, Store {
     });
   }
 
+  final _$loopModeStreamAtom = Atom(name: '_AudioStore.loopModeStream');
+
+  @override
+  ObservableStream<LoopMode> get loopModeStream {
+    _$loopModeStreamAtom.reportRead();
+    return super.loopModeStream;
+  }
+
+  @override
+  set loopModeStream(ObservableStream<LoopMode> value) {
+    _$loopModeStreamAtom.reportWrite(value, super.loopModeStream, () {
+      super.loopModeStream = value;
+    });
+  }
+
   final _$playSongAsyncAction = AsyncAction('_AudioStore.playSong');
 
   @override
@@ -154,6 +169,7 @@ currentPositionStream: ${currentPositionStream},
 queueStream: ${queueStream},
 queueIndexStream: ${queueIndexStream},
 shuffleModeStream: ${shuffleModeStream},
+loopModeStream: ${loopModeStream},
 currentSong: ${currentSong}
     ''';
   }

lib/presentation/widgets/loop_button.dart

@@ -0,0 +1,60 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_mobx/flutter_mobx.dart';
+import 'package:provider/provider.dart';
+
+import '../../domain/entities/loop_mode.dart';
+import '../state/audio_store.dart';
+
+class LoopButton extends StatelessWidget {
+  const LoopButton({Key key, this.iconSize = 20.0}) : super(key: key);
+
+  final double iconSize;
+
+  @override
+  Widget build(BuildContext context) {
+    final AudioStore audioStore = Provider.of<AudioStore>(context);
+
+    return Observer(
+      builder: (BuildContext context) {
+        if (audioStore.loopModeStream != null) {
+          switch (audioStore.loopModeStream.value) {
+            case LoopMode.off:
+              return IconButton(
+                icon: const Icon(
+                  Icons.repeat_rounded,
+                  color: Colors.white30,
+                ),
+                iconSize: iconSize,
+                onPressed: () {
+                  audioStore.setLoopMode(LoopMode.all);
+                },
+              );
+            case LoopMode.one:
+              return IconButton(
+                icon: const Icon(
+                  Icons.repeat_one_rounded,
+                  color: Colors.white,
+                ),
+                iconSize: iconSize,
+                onPressed: () {
+                  audioStore.setLoopMode(LoopMode.off);
+                },
+              );
+            case LoopMode.all:
+              return IconButton(
+                icon: const Icon(
+                  Icons.repeat_rounded,
+                  color: Colors.white,
+                ),
+                iconSize: iconSize,
+                onPressed: () {
+                  audioStore.setLoopMode(LoopMode.one);
+                },
+              );
+          }
+        }
+        return Container();
+      },
+    );
+  }
+}

lib/presentation/widgets/playback_control.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 
+import 'loop_button.dart';
 import 'next_button.dart';
 import 'play_pause_button.dart';
 import 'previous_button.dart';
@@ -12,14 +13,7 @@ class PlaybackControl extends StatelessWidget {
   Widget build(BuildContext context) {
     return Row(
       children: const [
-        IconButton(
-          icon: Icon(
-            Icons.repeat,
-            size: 20.0,
-            color: Colors.white10,
-          ),
-          onPressed: null,
-        ),
+        LoopButton(iconSize: 20.0),
         PreviousButton(iconSize: 32.0),
         PlayPauseButton(
           circle: true,

lib/system/audio/audio_handler.dart

@@ -3,6 +3,7 @@ import 'dart:math';
 import 'package:audio_service/audio_service.dart';
 import 'package:logging/logging.dart';
 
+import '../../domain/entities/loop_mode.dart';
 import '../../domain/entities/player_state.dart';
 import '../../domain/entities/shuffle_mode.dart';
 import '../datasources/music_data_source_contract.dart';
@@ -31,14 +32,20 @@ class MyAudioHandler extends BaseAudioHandler {
       customEventSubject.add({SHUFFLE_MODE: shuffleMode});
     });
 
+    _audioPlayer.loopModeStream.listen((event) {
+      _musicDataSource.setLoopMode(event);
+    });
+
     _initAudioPlayer();
   }
 
   Future<void> _initAudioPlayer() async {
-    _audioPlayer.loadQueue(
-      queue: await _musicDataSource.queueStream.first,
-      startIndex: await _musicDataSource.currentIndexStream.first,
-    );
+    if (_musicDataSource.queueStream != null && _musicDataSource.currentIndexStream != null) {
+      _audioPlayer.loadQueue(
+        queue: await _musicDataSource.queueStream.first,
+        startIndex: await _musicDataSource.currentIndexStream.first,
+      );
+    }
   }
 
   final AudioPlayer _audioPlayer;
@@ -89,6 +96,8 @@ class MyAudioHandler extends BaseAudioHandler {
         return onAppLifecycleResumed();
       case SET_SHUFFLE_MODE:
         return setCustomShuffleMode(arguments['SHUFFLE_MODE'] as ShuffleMode);
+      case SET_LOOP_MODE:
+        return setCustomLoopMode(arguments['LOOP_MODE'] as LoopMode);
       case SHUFFLE_ALL:
         return shuffleAll();
       case MOVE_QUEUE_ITEM:
@@ -118,6 +127,11 @@ class MyAudioHandler extends BaseAudioHandler {
     _audioPlayer.setShuffleMode(mode, true);
   }
 
+  Future<void> setCustomLoopMode(LoopMode mode) async {
+
+    _audioPlayer.setLoopMode(mode);
+  }
+
   Future<void> shuffleAll() async {
     _audioPlayer.setShuffleMode(ShuffleMode.plus, false);
 

lib/system/audio/audio_manager.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 
 import 'package:audio_service/audio_service.dart';
 
+import '../../domain/entities/loop_mode.dart';
 import '../../domain/entities/playback_state.dart' as entity;
 import '../../domain/entities/shuffle_mode.dart';
 import '../models/playback_state_model.dart';
@@ -115,6 +116,12 @@ class AudioManagerImpl implements AudioManager {
     await _audioHandler.customAction(SET_SHUFFLE_MODE, {'SHUFFLE_MODE': shuffleMode});
   }
 
+  @override
+  Future<void> setLoopMode(LoopMode loopMode) async {
+    print('setLoopMode!!');
+    await _audioHandler.customAction(SET_LOOP_MODE, {'LOOP_MODE': loopMode});
+  }
+
   Stream<T> _filterStream<S, T>(Stream<S> stream, Conversion<S, T> fn) async* {
     T lastItem;
 

lib/system/audio/audio_manager_contract.dart

@@ -1,3 +1,4 @@
+import '../../domain/entities/loop_mode.dart';
 import '../../domain/entities/playback_state.dart';
 import '../../domain/entities/shuffle_mode.dart';
 import '../models/song_model.dart';
@@ -17,6 +18,7 @@ abstract class AudioManager {
   Future<void> skipToNext();
   Future<void> skipToPrevious();
   Future<void> setShuffleMode(ShuffleMode shuffleMode);
+  Future<void> setLoopMode(LoopMode loopMode);
   Future<void> shuffleAll();
   Future<void> addToQueue(SongModel songModel);
   Future<void> moveQueueItem(int oldIndex, int newIndex);

lib/system/audio/audio_player_contract.dart

@@ -1,5 +1,6 @@
 import 'package:rxdart/rxdart.dart';
 
+import '../../domain/entities/loop_mode.dart';
 import '../../domain/entities/shuffle_mode.dart';
 import '../models/player_state_model.dart';
 import '../models/queue_item_model.dart';
@@ -12,6 +13,7 @@ abstract class AudioPlayer {
   ValueStream<Duration> get positionStream;
   ValueStream<List<QueueItemModel>> get queueStream;
   ValueStream<ShuffleMode> get shuffleModeStream;
+  ValueStream<LoopMode> get loopModeStream;
 
   Future<void> play();
   Future<void> pause();
@@ -28,6 +30,7 @@ abstract class AudioPlayer {
 
 
   Future<void> setShuffleMode(ShuffleMode shuffleMode, bool updateQueue);
+  Future<void> setLoopMode(LoopMode loopMode);
 
   Future<void> playSongList(List<SongModel> songs, int startIndex);
 }

lib/system/audio/audio_player_impl.dart

@@ -1,8 +1,10 @@
 import 'package:just_audio/just_audio.dart' as ja;
 import 'package:rxdart/rxdart.dart';
 
+import '../../domain/entities/loop_mode.dart';
 import '../../domain/entities/queue_item.dart';
 import '../../domain/entities/shuffle_mode.dart';
+import '../models/loop_mode_model.dart';
 import '../models/player_state_model.dart';
 import '../models/queue_item_model.dart';
 import '../models/song_model.dart';
@@ -24,6 +26,10 @@ class AudioPlayerImpl implements AudioPlayer {
       _playerStateSubject.add(PlayerStateModel.fromJAPlayerState(event));
     });
 
+    _audioPlayer.loopModeStream.listen((event) {
+      _loopModeSubject.add(event.toEntity());
+    });
+
     _queueSubject.listen((event) {
       _currentSongSubject.add(event[_currentIndexSubject.value].song);
     });
@@ -42,6 +48,7 @@ class AudioPlayerImpl implements AudioPlayer {
   final BehaviorSubject<Duration> _positionSubject = BehaviorSubject();
   final BehaviorSubject<List<QueueItemModel>> _queueSubject = BehaviorSubject();
   final BehaviorSubject<ShuffleMode> _shuffleModeSubject = BehaviorSubject.seeded(ShuffleMode.none);
+  final BehaviorSubject<LoopMode> _loopModeSubject = BehaviorSubject();
 
   @override
   ValueStream<int> get currentIndexStream => _currentIndexSubject.stream;
@@ -61,8 +68,18 @@ class AudioPlayerImpl implements AudioPlayer {
   @override
   ValueStream<ShuffleMode> get shuffleModeStream => _shuffleModeSubject.stream;
 
+  @override
+  ValueStream<LoopMode> get loopModeStream => _loopModeSubject.stream;
+
   @override
   Future<void> dispose() async {
+    await _currentIndexSubject.close();
+    await _currentSongSubject.close();
+    await _playerStateSubject.close();
+    await _positionSubject.close();
+    await _queueSubject.close();
+    await _shuffleModeSubject.close();
+    await _loopModeSubject.close();
     await _audioPlayer.dispose();
   }
 
@@ -174,6 +191,12 @@ class AudioPlayerImpl implements AudioPlayer {
     }
   }
 
+  @override
+  Future<void> setLoopMode(LoopMode loopMode) async {
+    print('ap loopmode');
+    await _audioPlayer.setLoopMode(loopMode.toJA());
+  }
+
   void _updateQueue(ja.ConcatenatingAudioSource newQueue, QueueItem currentQueueItem) {
     final int index = currentQueueItem.originalIndex;
 

lib/system/audio/stream_constants.dart

@@ -5,5 +5,6 @@ const String PLAY_WITH_CONTEXT = 'PLAY_WITH_CONTEXT';
 const String APP_LIFECYCLE_RESUMED = 'APP_LIFECYCLE_RESUMED';
 const String SHUFFLE_ALL = 'SHUFFLE_ALL';
 const String SET_SHUFFLE_MODE = 'SET_SHUFFLE_MODE';
+const String SET_LOOP_MODE = 'SET_LOOP_MODE';
 const String MOVE_QUEUE_ITEM = 'MOVE_QUEUE_ITEM';
 const String REMOVE_QUEUE_ITEM = 'REMOVE_QUEUE_ITEM';

lib/system/datasources/moor_music_data_source.dart

@@ -7,8 +7,11 @@ import 'package:moor/moor.dart';
 import 'package:path/path.dart' as p;
 import 'package:path_provider/path_provider.dart';
 
+import '../../domain/entities/loop_mode.dart';
+import '../../domain/entities/shuffle_mode.dart';
 import '../models/album_model.dart';
 import '../models/artist_model.dart';
+import '../models/loop_mode_model.dart';
 import '../models/queue_item_model.dart';
 import '../models/song_model.dart';
 import 'music_data_source_contract.dart';
@@ -69,6 +72,8 @@ class QueueEntries extends Table {
 @DataClassName('PersistentPlayerState')
 class PlayerState extends Table {
   IntColumn get index => integer()();
+  IntColumn get shuffleMode => integer().withDefault(const Constant(0))();
+  IntColumn get loopMode => integer().withDefault(const Constant(0))();
 }
 
 @UseMoor(tables: [Artists, Albums, Songs, QueueEntries, PlayerState])
@@ -293,6 +298,32 @@ class MoorMusicDataSource extends _$MoorMusicDataSource implements MusicDataSour
       into(playerState).insert(PlayerStateCompanion(index: Value(index)));
     }
   }
+
+  @override
+  Stream<LoopMode> get loopModeStream {
+    return select(playerState).watchSingle().map((event) => event.loopMode.toLoopMode());
+  }
+
+  @override
+  Future<void> setLoopMode(LoopMode loopMode) async {
+    print('setLoopMode!!!');
+    final currentState = await select(playerState).getSingle();
+    if (currentState != null) {
+      update(playerState).write(PlayerStateCompanion(loopMode: Value(loopMode.toInt())));
+    } else {
+      into(playerState).insert(PlayerStateCompanion(loopMode: Value(loopMode.toInt())));
+    }
+  }
+
+  @override
+  Future<void> setShuffleMode(ShuffleMode shuffleMode) {
+    // TODO: implement setShuffleMode
+    throw UnimplementedError();
+  }
+
+  @override
+  // TODO: implement shuffleModeStream
+  Stream<ShuffleMode> get shuffleModeStream => throw UnimplementedError();
 }
 
 LazyDatabase _openConnection() {

lib/system/datasources/moor_music_data_source.g.dart

@@ -1508,7 +1508,12 @@ class $QueueEntriesTable extends QueueEntries
 class PersistentPlayerState extends DataClass
     implements Insertable<PersistentPlayerState> {
   final int index;
-  PersistentPlayerState({@required this.index});
+  final int shuffleMode;
+  final int loopMode;
+  PersistentPlayerState(
+      {@required this.index,
+      @required this.shuffleMode,
+      @required this.loopMode});
   factory PersistentPlayerState.fromData(
       Map<String, dynamic> data, GeneratedDatabase db,
       {String prefix}) {
@@ -1516,6 +1521,10 @@ class PersistentPlayerState extends DataClass
     final intType = db.typeSystem.forDartType<int>();
     return PersistentPlayerState(
       index: intType.mapFromDatabaseResponse(data['${effectivePrefix}index']),
+      shuffleMode: intType
+          .mapFromDatabaseResponse(data['${effectivePrefix}shuffle_mode']),
+      loopMode:
+          intType.mapFromDatabaseResponse(data['${effectivePrefix}loop_mode']),
     );
   }
   @override
@@ -1524,6 +1533,12 @@ class PersistentPlayerState extends DataClass
     if (!nullToAbsent || index != null) {
       map['index'] = Variable<int>(index);
     }
+    if (!nullToAbsent || shuffleMode != null) {
+      map['shuffle_mode'] = Variable<int>(shuffleMode);
+    }
+    if (!nullToAbsent || loopMode != null) {
+      map['loop_mode'] = Variable<int>(loopMode);
+    }
     return map;
   }
 
@@ -1531,6 +1546,12 @@ class PersistentPlayerState extends DataClass
     return PlayerStateCompanion(
       index:
           index == null && nullToAbsent ? const Value.absent() : Value(index),
+      shuffleMode: shuffleMode == null && nullToAbsent
+          ? const Value.absent()
+          : Value(shuffleMode),
+      loopMode: loopMode == null && nullToAbsent
+          ? const Value.absent()
+          : Value(loopMode),
     );
   }
 
@@ -1539,6 +1560,8 @@ class PersistentPlayerState extends DataClass
     serializer ??= moorRuntimeOptions.defaultSerializer;
     return PersistentPlayerState(
       index: serializer.fromJson<int>(json['index']),
+      shuffleMode: serializer.fromJson<int>(json['shuffleMode']),
+      loopMode: serializer.fromJson<int>(json['loopMode']),
     );
   }
   @override
@@ -1546,47 +1569,71 @@ class PersistentPlayerState extends DataClass
     serializer ??= moorRuntimeOptions.defaultSerializer;
     return <String, dynamic>{
       'index': serializer.toJson<int>(index),
+      'shuffleMode': serializer.toJson<int>(shuffleMode),
+      'loopMode': serializer.toJson<int>(loopMode),
     };
   }
 
-  PersistentPlayerState copyWith({int index}) => PersistentPlayerState(
+  PersistentPlayerState copyWith({int index, int shuffleMode, int loopMode}) =>
+      PersistentPlayerState(
         index: index ?? this.index,
+        shuffleMode: shuffleMode ?? this.shuffleMode,
+        loopMode: loopMode ?? this.loopMode,
       );
   @override
   String toString() {
     return (StringBuffer('PersistentPlayerState(')
-          ..write('index: $index')
+          ..write('index: $index, ')
+          ..write('shuffleMode: $shuffleMode, ')
+          ..write('loopMode: $loopMode')
           ..write(')'))
         .toString();
   }
 
   @override
-  int get hashCode => $mrjf(index.hashCode);
+  int get hashCode => $mrjf(
+      $mrjc(index.hashCode, $mrjc(shuffleMode.hashCode, loopMode.hashCode)));
   @override
   bool operator ==(dynamic other) =>
       identical(this, other) ||
-      (other is PersistentPlayerState && other.index == this.index);
+      (other is PersistentPlayerState &&
+          other.index == this.index &&
+          other.shuffleMode == this.shuffleMode &&
+          other.loopMode == this.loopMode);
 }
 
 class PlayerStateCompanion extends UpdateCompanion<PersistentPlayerState> {
   final Value<int> index;
+  final Value<int> shuffleMode;
+  final Value<int> loopMode;
   const PlayerStateCompanion({
     this.index = const Value.absent(),
+    this.shuffleMode = const Value.absent(),
+    this.loopMode = const Value.absent(),
   });
   PlayerStateCompanion.insert({
     @required int index,
+    this.shuffleMode = const Value.absent(),
+    this.loopMode = const Value.absent(),
   }) : index = Value(index);
   static Insertable<PersistentPlayerState> custom({
     Expression<int> index,
+    Expression<int> shuffleMode,
+    Expression<int> loopMode,
   }) {
     return RawValuesInsertable({
       if (index != null) 'index': index,
+      if (shuffleMode != null) 'shuffle_mode': shuffleMode,
+      if (loopMode != null) 'loop_mode': loopMode,
     });
   }
 
-  PlayerStateCompanion copyWith({Value<int> index}) {
+  PlayerStateCompanion copyWith(
+      {Value<int> index, Value<int> shuffleMode, Value<int> loopMode}) {
     return PlayerStateCompanion(
       index: index ?? this.index,
+      shuffleMode: shuffleMode ?? this.shuffleMode,
+      loopMode: loopMode ?? this.loopMode,
     );
   }
 
@@ -1596,13 +1643,21 @@ class PlayerStateCompanion extends UpdateCompanion<PersistentPlayerState> {
     if (index.present) {
       map['index'] = Variable<int>(index.value);
     }
+    if (shuffleMode.present) {
+      map['shuffle_mode'] = Variable<int>(shuffleMode.value);
+    }
+    if (loopMode.present) {
+      map['loop_mode'] = Variable<int>(loopMode.value);
+    }
     return map;
   }
 
   @override
   String toString() {
     return (StringBuffer('PlayerStateCompanion(')
-          ..write('index: $index')
+          ..write('index: $index, ')
+          ..write('shuffleMode: $shuffleMode, ')
+          ..write('loopMode: $loopMode')
           ..write(')'))
         .toString();
   }
@@ -1625,8 +1680,28 @@ class $PlayerStateTable extends PlayerState
     );
   }
 
+  final VerificationMeta _shuffleModeMeta =
+      const VerificationMeta('shuffleMode');
+  GeneratedIntColumn _shuffleMode;
   @override
-  List<GeneratedColumn> get $columns => [index];
+  GeneratedIntColumn get shuffleMode =>
+      _shuffleMode ??= _constructShuffleMode();
+  GeneratedIntColumn _constructShuffleMode() {
+    return GeneratedIntColumn('shuffle_mode', $tableName, false,
+        defaultValue: const Constant(0));
+  }
+
+  final VerificationMeta _loopModeMeta = const VerificationMeta('loopMode');
+  GeneratedIntColumn _loopMode;
+  @override
+  GeneratedIntColumn get loopMode => _loopMode ??= _constructLoopMode();
+  GeneratedIntColumn _constructLoopMode() {
+    return GeneratedIntColumn('loop_mode', $tableName, false,
+        defaultValue: const Constant(0));
+  }
+
+  @override
+  List<GeneratedColumn> get $columns => [index, shuffleMode, loopMode];
   @override
   $PlayerStateTable get asDslTable => this;
   @override
@@ -1645,6 +1720,16 @@ class $PlayerStateTable extends PlayerState
     } else if (isInserting) {
       context.missing(_indexMeta);
     }
+    if (data.containsKey('shuffle_mode')) {
+      context.handle(
+          _shuffleModeMeta,
+          shuffleMode.isAcceptableOrUnknown(
+              data['shuffle_mode'], _shuffleModeMeta));
+    }
+    if (data.containsKey('loop_mode')) {
+      context.handle(_loopModeMeta,
+          loopMode.isAcceptableOrUnknown(data['loop_mode'], _loopModeMeta));
+    }
     return context;
   }
 

lib/system/datasources/music_data_source_contract.dart

@@ -1,3 +1,5 @@
+import '../../domain/entities/loop_mode.dart';
+import '../../domain/entities/shuffle_mode.dart';
 import '../models/album_model.dart';
 import '../models/artist_model.dart';
 import '../models/queue_item_model.dart';
@@ -14,6 +16,10 @@ abstract class MusicDataSource {
   Stream<List<QueueItemModel>> get queueStream;
   Future<void> setCurrentIndex(int index);
   Stream<int> get currentIndexStream;
+  Future<void> setShuffleMode(ShuffleMode shuffleMode);
+  Stream<ShuffleMode> get shuffleModeStream;
+  Future<void> setLoopMode(LoopMode loopMode);
+  Stream<LoopMode> get loopModeStream;
 
   /// Insert album into the database. Return the ID of the inserted album.
   Future<int> insertAlbum(AlbumModel albumModel);

lib/system/models/loop_mode_model.dart

@@ -0,0 +1,55 @@
+import 'package:just_audio/just_audio.dart' as ja;
+
+import '../../domain/entities/loop_mode.dart';
+
+extension LoopModeToJA on LoopMode {
+  ja.LoopMode toJA() {
+    switch(this) {
+      case LoopMode.one:
+        return ja.LoopMode.one;
+      case LoopMode.all:
+        return ja.LoopMode.all;
+      default:
+        return ja.LoopMode.off;
+    }
+  }
+}
+
+extension JALoopModeToEntity on ja.LoopMode {
+  LoopMode toEntity() {
+    switch(this) {
+      case ja.LoopMode.one:
+        return LoopMode.one;
+      case ja.LoopMode.all:
+        return LoopMode.all;
+      default:
+        return LoopMode.off;
+    }
+  }
+}
+
+extension LoopModeToInt on LoopMode {
+  int toInt() {
+    switch(this) {
+      case LoopMode.one:
+        return 1;
+      case LoopMode.all:
+        return 2;
+      default:
+        return 0;
+    }
+  }
+}
+
+extension IntToLoopMode on int {
+  LoopMode toLoopMode() {
+    switch(this) {
+      case 1:
+        return LoopMode.one;
+      case 2:
+        return LoopMode.all;
+      default:
+        return LoopMode.off;
+    }
+  }
+}

lib/system/repositories/audio_repository_impl.dart

@@ -1,6 +1,7 @@
 import 'package:dartz/dartz.dart';
 
 import '../../core/error/failures.dart';
+import '../../domain/entities/loop_mode.dart';
 import '../../domain/entities/playback_state.dart';
 import '../../domain/entities/shuffle_mode.dart';
 import '../../domain/entities/song.dart';
@@ -97,4 +98,10 @@ class AudioRepositoryImpl implements AudioRepository {
     await _audioManager.removeQueueIndex(index);
     return const Right(null);
   }
+
+  @override
+  Future<void> setLoopMode(LoopMode loopMode) async {
+    print('setLoopMode!');
+    await _audioManager.setLoopMode(loopMode);
+  }
 }

lib/system/repositories/music_data_repository_impl.dart

@@ -8,6 +8,7 @@ import 'package:path_provider/path_provider.dart';
 import '../../core/error/failures.dart';
 import '../../domain/entities/album.dart';
 import '../../domain/entities/artist.dart';
+import '../../domain/entities/loop_mode.dart';
 import '../../domain/entities/song.dart';
 import '../../domain/repositories/music_data_repository.dart';
 import '../datasources/local_music_fetcher_contract.dart';
@@ -139,4 +140,7 @@ class MusicDataRepositoryImpl implements MusicDataRepository {
 
   @override
   Stream<int> get currentIndexStream => musicDataSource.currentIndexStream;
+
+  @override
+  Stream<LoopMode> get loopModeStream => musicDataSource.loopModeStream;
 }