v2

lib/sources/music_source.dart

@@ -0,0 +1,91 @@
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+
+import '../database/database.dart';
+import '../state/settings.dart';
+
+abstract class BaseMusicSource {
+  int get id;
+
+  Future<void> ping();
+
+  Stream<Iterable<AlbumsCompanion>> allAlbums();
+  Stream<Iterable<ArtistsCompanion>> allArtists();
+  Stream<Iterable<PlaylistWithSongsCompanion>> allPlaylists();
+  Stream<Iterable<SongsCompanion>> allSongs();
+
+  Uri streamUri(String songId);
+  Uri downloadUri(String songId);
+
+  Uri coverArtUri(String coverArtId, {bool thumbnail = true});
+  Future<Uri?> artistArtUri(String artistId, {bool thumbnail = true});
+}
+
+class OfflineException implements Exception {
+  @override
+  String toString() => 'OfflineException';
+}
+
+class MusicSource implements BaseMusicSource {
+  final BaseMusicSource _source;
+  final Ref _ref;
+
+  const MusicSource(this._source, this._ref);
+
+  void _testOnline() {
+    if (_ref.read(offlineModeProvider)) {
+      throw OfflineException();
+    }
+  }
+
+  @override
+  Stream<Iterable<AlbumsCompanion>> allAlbums() {
+    _testOnline();
+    return _source.allAlbums();
+  }
+
+  @override
+  Stream<Iterable<ArtistsCompanion>> allArtists() {
+    _testOnline();
+    return _source.allArtists();
+  }
+
+  @override
+  Stream<Iterable<PlaylistWithSongsCompanion>> allPlaylists() {
+    _testOnline();
+    return _source.allPlaylists();
+  }
+
+  @override
+  Stream<Iterable<SongsCompanion>> allSongs() {
+    _testOnline();
+    return _source.allSongs();
+  }
+
+  @override
+  Future<Uri?> artistArtUri(String artistId, {bool thumbnail = true}) {
+    _testOnline();
+    return _source.artistArtUri(artistId, thumbnail: thumbnail);
+  }
+
+  @override
+  Uri coverArtUri(String coverArtId, {bool thumbnail = true}) =>
+      _source.coverArtUri(coverArtId, thumbnail: thumbnail);
+
+  @override
+  Uri downloadUri(String songId) => _source.downloadUri(songId);
+
+  @override
+  int get id => _source.id;
+
+  @override
+  Future<void> ping() => _source.ping();
+
+  @override
+  Uri streamUri(String songId) => _source.streamUri(songId);
+
+  @override
+  bool operator ==(other) => other is BaseMusicSource && (other.id == id);
+
+  @override
+  int get hashCode => id;
+}