// lib/services/playback_service.dart
import 'package:media_kit/media_kit.dart';

class PlaybackService {
  static final PlaybackService _instance = PlaybackService._();
  factory PlaybackService() => _instance;
  PlaybackService._();

  late final Player _player;
  bool _initialized = false;

  // 获取 Player 实例（供 AudioService 直接监听）
  Player get player {
    if (!_initialized) init();
    return _player;
  }

  void init() {
    if (_initialized) return;
    _player = Player();
    _initialized = true;
  }

  Future<void> play(String url, {Map<String, String>? headers}) async {
    if (!_initialized) init();
    print('🎵 播放 URL: $url');
    print('📋 认证头: ${headers?.keys}');
    final media = headers != null && headers.isNotEmpty
        ? Media(url, httpHeaders: headers)
        : Media(url);
    await _player.open(media);
    await _player.play();
  }

  void pause() {
    if (_initialized) _player.pause();
  }

  void resume() {
    if (_initialized) _player.play();
  }

  void stop() {
    if (_initialized) _player.stop();
  }

  void seek(Duration position) {
    if (_initialized) _player.seek(position);
  }

  void dispose() {
    if (_initialized) {
      _player.dispose();
      _initialized = false;
    }
  }
}