132 lines
5.5 KiB
Dart
132 lines
5.5 KiB
Dart
// lib/controllers/playback_controller.dart
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import '../services/audio_service.dart';
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import '../services/webdav_service.dart';
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import '../database/song_database.dart';
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class PlaybackController {
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static final PlaybackController _instance = PlaybackController._internal();
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factory PlaybackController() => _instance;
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PlaybackController._internal();
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final AudioService _audioService = AudioService();
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final SongDatabase _db = SongDatabase();
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// ════════════════════════════════════════════════════════════
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// 播放 WebDAV 目录中的歌曲（从点击歌曲开始）
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// ════════════════════════════════════════════════════════════
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Future<void> playFromWebDAV({
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required String directoryPath,
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required String clickedSongPath,
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required List<WebDAVItem> allItems,
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}) async {
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final musicFiles = allItems.where((item) => !item.isDirectory).toList();
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if (musicFiles.isEmpty) return;
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final clickedIndex =
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musicFiles.indexWhere((item) => item.path == clickedSongPath);
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if (clickedIndex == -1) {
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await _playSingleSong(clickedSongPath);
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return;
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}
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final queue = await _buildSongQueue(musicFiles);
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final playMode = _audioService.playMode;
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// ⭐ 修复：显式指定类型
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List<Song> finalQueue = List<Song>.from(queue);
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int startIndex = clickedIndex;
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if (playMode == PlayMode.shuffle) {
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final shuffled = List<Song>.from(queue)..shuffle();
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startIndex = shuffled.indexWhere((s) => s.id == clickedSongPath);
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if (startIndex == -1) startIndex = 0;
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finalQueue = shuffled;
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}
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_audioService.setQueue(finalQueue, startIndex: startIndex);
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}
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// ════════════════════════════════════════════════════════════
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// 播放整个目录（从第一首开始）
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// ════════════════════════════════════════════════════════════
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Future<void> playAllFromWebDAV({
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required String directoryPath,
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required List<WebDAVItem> allItems,
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}) async {
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final musicFiles = allItems.where((item) => !item.isDirectory).toList();
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if (musicFiles.isEmpty) return;
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final queue = await _buildSongQueue(musicFiles);
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final playMode = _audioService.playMode;
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// ⭐ 修复：显式指定类型
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List<Song> finalQueue = List<Song>.from(queue);
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if (playMode == PlayMode.shuffle) {
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finalQueue = List<Song>.from(queue)..shuffle();
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}
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_audioService.setQueue(finalQueue, startIndex: 0);
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}
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// ════════════════════════════════════════════════════════════
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// 播放单曲（fallback）
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// ════════════════════════════════════════════════════════════
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Future<void> _playSingleSong(String songPath) async {
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final url = WebDAVService.instance.getFileUrl(songPath);
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final dbSong = await _db.getSongByPath(songPath);
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final song = Song(
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id: songPath,
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title: dbSong?['title'] as String? ??
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songPath.split('/').last.replaceAll(RegExp(r'\.[^.]*$'), ''),
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artist: dbSong?['artist'] as String? ?? '未知艺术家',
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url: url,
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);
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_audioService.playSong(song);
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}
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// ════════════════════════════════════════════════════════════
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// 辅助方法：从音乐文件列表构建 Song 队列
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// ════════════════════════════════════════════════════════════
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Future<List<Song>> _buildSongQueue(List<WebDAVItem> musicFiles) async {
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final queue = <Song>[];
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for (final item in musicFiles) {
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final dbSong = await _db.getSongByPath(item.path);
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final url = WebDAVService.instance.getFileUrl(item.path);
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if (dbSong != null) {
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queue.add(Song(
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id: item.path,
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title: dbSong['title'] as String? ??
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item.name.replaceAll(RegExp(r'\.[^.]*$'), ''),
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artist: dbSong['artist'] as String? ?? '未知艺术家',
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url: url,
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));
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} else {
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queue.add(Song(
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id: item.path,
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title: item.name.replaceAll(RegExp(r'\.[^.]*$'), ''),
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artist: '未知艺术家',
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url: url,
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));
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}
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}
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return queue;
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}
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// ════════════════════════════════════════════════════════════
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// 播放控制（透传到 AudioService）
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// ════════════════════════════════════════════════════════════
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void next() {
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_audioService.next();
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}
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void previous() {
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_audioService.previous();
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}
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void togglePlayMode() {
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_audioService.togglePlayMode();
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}
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PlayMode get playMode => _audioService.playMode;
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}
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