128 lines
4.5 KiB
Dart
128 lines
4.5 KiB
Dart
// lib/repositories/playlist_repository.dart
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import 'dart:math';
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import '../database/song_database.dart';
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import '../models/playlist.dart';
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import '../services/audio_service.dart';
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class PlaylistRepository {
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final SongDatabase _db = SongDatabase();
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String _generateId() {
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const chars = 'abcdefghijklmnopqrstuvwxyz0123456789';
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final random = Random();
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return String.fromCharCodes(
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Iterable.generate(
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16, (_) => chars.codeUnitAt(random.nextInt(chars.length))),
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);
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}
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// ════════════════════════════════════════════════════════════
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// 歌单操作
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// ════════════════════════════════════════════════════════════
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Future<List<Playlist>> getAllPlaylists() async {
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final data = await _db.getAllPlaylists();
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return data.map((e) => Playlist.fromJson(e)).toList();
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}
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Future<Playlist?> getPlaylist(String id) async {
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final data = await _db.getPlaylist(id);
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if (data == null) return null;
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return Playlist.fromJson(data);
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}
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Future<Playlist> createPlaylist(String name) async {
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final playlist = Playlist(id: _generateId(), name: name);
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await _db.insertPlaylist(playlist.toJson());
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return playlist;
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}
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Future<void> updatePlaylistName(String id, String newName) async {
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await _db.updatePlaylist(id, {
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'name': newName,
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'updated_at': DateTime.now().millisecondsSinceEpoch,
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});
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}
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// ⭐ 新增：更新播放模式
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Future<void> updatePlaylistPlayMode(String id, PlayMode playMode) async {
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await _db.updatePlaylist(id, {
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// ⭐ 修改前：_playModeToString
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// 'play_mode': _playModeToString(playMode),
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// ⭐ 修改后：用公开静态方法
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'play_mode': Playlist.playModeToString(playMode),
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'updated_at': DateTime.now().millisecondsSinceEpoch,
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});
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}
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Future<void> deletePlaylist(String id) async {
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await _db.deletePlaylist(id);
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}
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// ════════════════════════════════════════════════════════════
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// 歌单歌曲操作
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// ════════════════════════════════════════════════════════════
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Future<List<String>> getPlaylistSongIds(String playlistId) async {
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final data = await _db.getPlaylistSongs(playlistId);
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return data.map((e) => e['song_id'] as String).toList();
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}
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Future<void> addSong(String playlistId, String songId) async {
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await _db.addSongToPlaylist(playlistId, songId);
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}
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Future<void> removeSong(String playlistId, String songId) async {
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await _db.removeSongFromPlaylist(playlistId, songId);
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}
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Future<void> reorderSongs(
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String playlistId, int oldIndex, int newIndex) async {
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if (oldIndex == newIndex) return;
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final songs = await _db.getPlaylistSongs(playlistId);
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if (oldIndex < 0 ||
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oldIndex >= songs.length ||
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newIndex < 0 ||
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newIndex >= songs.length) {
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return;
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}
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final items = songs.map((e) => e['song_id'] as String).toList();
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final item = items.removeAt(oldIndex);
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items.insert(newIndex, item);
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for (int i = 0; i < items.length; i++) {
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await _db.removeSongFromPlaylist(playlistId, items[i]);
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await _db.addSongToPlaylist(playlistId, items[i], orderIndex: i);
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}
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}
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Future<void> clearPlaylist(String playlistId) async {
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await _db.clearPlaylist(playlistId);
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}
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// ════════════════════════════════════════════════════════════
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// 收藏操作
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// ════════════════════════════════════════════════════════════
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Future<List<String>> getFavorites() async {
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final data = await _db.getFavorites();
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return data.map((e) => e['song_id'] as String).toList();
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}
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Future<bool> isFavorite(String songId) async {
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return await _db.isFavorite(songId);
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}
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Future<void> addFavorite(String songId) async {
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await _db.addFavorite(songId);
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}
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Future<void> removeFavorite(String songId) async {
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await _db.removeFavorite(songId);
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}
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Future<void> toggleFavorite(String songId) async {
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await _db.toggleFavorite(songId);
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}
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}
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