import 'package:get/get.dart';
import '../controllers/music_controller.dart';
import '../../../data/services/music_manager.dart';

/// 音乐服务门面
/// 作为音乐功能的统一入口，简化模块间的交互
class MusicServiceFacade {
  // 单例实现
  static final MusicServiceFacade _instance = MusicServiceFacade._internal();
  
  factory MusicServiceFacade() => _instance;
  
  MusicServiceFacade._internal();
  
  // 获取音乐控制器实例
  MusicController get musicController => Get.find<MusicController>();
  
  // 获取音乐管理器实例
  MusicManager get musicManager => Get.find<MusicManager>();
  
  /// 播放音乐
  Future<void> musicPlay(Map<String, dynamic> song) async {
    await musicController.musicPlay(song);
  }
  
  /// 暂停音乐
  Future<void> musicPause() async {
    await musicController.musicPause();
  }
  
  /// 恢复播放
  Future<void> musicResume() async {
    await musicController.musicResume();
  }
  
  /// 播放音乐（兼容旧接口）
  Future<void> playMusic(Map<String, dynamic> song) async {
    await musicPlay(song);
  }
  
  /// 暂停音乐（兼容旧接口）
  Future<void> pauseMusic() async {
    await musicPause();
  }
  
  /// 恢复播放（兼容旧接口）
  Future<void> resumeMusic() async {
    await musicResume();
  }
  
  /// 播放/暂停切换
  Future<void> togglePlayPause() async {
    if (musicController.isPlaying.value) {
      await musicPause();
    } else {
      await musicResume();
    }
  }
  
  /// 播放上一曲
  Future<void> playPrevious() async {
    await musicController.playPrevious();
  }
  
  /// 播放下一曲
  Future<void> playNext() async {
    await musicController.playNext();
  }
  
  /// 播放音乐列表
  Future<void> playPlaylist(List<Map<String, dynamic>> playlist) async {
    await musicController.playPlaylist(playlist);
  }
  
  /// 跳转到指定位置
  Future<void> seekToPosition(int positionMs) async {
    await musicController.seekToPosition(positionMs);
  }
  
  /// 获取当前播放状态
  bool get isPlayingValue => musicController.isPlaying.value;
  
  /// 获取当前播放歌曲ID
  int get currentIdValue => musicController.currentId.value;
  
  /// 获取当前播放位置（毫秒）
  int get currentPositionValue => musicController.currentPosition.value;
  
  /// 获取当前歌曲总时长（毫秒）
  int get durationValue => musicController.duration.value;
  
  /// 获取当前播放进度（0.0-1.0）
  double get progressValue => musicController.progress.value;
  
  /// 获取响应式播放状态（用于Obx）
  get isPlaying => musicController.isPlaying;
  
  /// 获取响应式当前播放歌曲ID（用于Obx）
  get currentId => musicController.currentId;
  
  /// 获取响应式当前播放位置（用于Obx）
  get currentPosition => musicController.currentPosition;
  
  /// 获取响应式当前歌曲总时长（用于Obx）
  get duration => musicController.duration;
  
  /// 获取响应式当前播放进度（用于Obx）
  get progress => musicController.progress;
  
  /// 获取当前播放列表
  List<Map<String, dynamic>> get currentPlaylist => musicController.currentPlaylist;
  
  /// 获取当前播放索引
  int get currentPlaylistIndex => musicController.currentPlaylistIndex.value;
  
  /// 设置加载状态
  void setLoadingMusic(String id, bool loading) {
    musicController.setLoadingMusic(id, loading);
  }
  
  /// 更新当前播放列表上下文
  void updateCurrentPlaylistContext(List<Map<String, dynamic>> playlist, int songId) {
    musicController.updateCurrentPlaylistContext(playlist, songId);
  }
}