// lib/audio/player_controller.dart
import 'package:media_kit/media_kit.dart';
import '../services/playback_service.dart'; // ⭐ 修正路径

class PlayerController {
  static final PlayerController _instance = PlayerController._internal();
  factory PlayerController() => _instance;
  PlayerController._internal();

  final PlaybackService _playback = PlaybackService();

  // ---- 状态流（只读） ----
  Stream<bool> get playingStream => _playback.player.stream.playing;
  Stream<Duration> get positionStream => _playback.player.stream.position;
  Stream<Duration> get durationStream => _playback.player.stream.duration;
  Stream<void> get completedStream => _playback.player.stream.completed;

  // ---- 当前状态快照 ----
  bool get isPlaying => _playback.player.state.playing;
  Duration get position => _playback.player.state.position;
  Duration get duration => _playback.player.state.duration;

  // ---- 控制命令 ----
  Future<void> play() => _playback.resume();
  Future<void> pause() => _playback.pause();
  Future<void> stop() => _playback.stop();
  Future<void> seek(Duration position) => _playback.seek(position);

  // ---- 加载歌曲 ----
  void load(String url, {Map<String, String>? headers}) {
    _playback.play(url, headers: headers);
  }
}