deepvoice_client/lib/data/services/music_manager.dart

import 'package:deep_voice/core/utils/logger.dart';
import 'package:get/get.dart';
import 'package:music_service/music_service.dart';
import 'package:permission_handler/permission_handler.dart';
import '../../core/utils/permission_util.dart';
import 'package:flutter/material.dart';

//音乐播放管理
class MusicManager extends GetxService {
  static MusicManager get to => Get.find<MusicManager>();

  // 音乐服务实例
  final MusicService _musicService = MusicService();

  /// 初始化
  @override
  void onInit() {
    super.onInit();

    // final context = Get.context;
    // if (context == null) {
    //   Logger.error('无法获取 BuildContext');
    //   return;
    // }
    requestNotificationPermission();
    Logger.info('初始化权限请求');
  }

  Future<void> requestNotificationPermission() async {
    final granted = await PermissionUtil.instance.requestPermission(
      // context: context,
      permissionType: Permission.notification,
      permissionName: '通知',
      explanationText: '需要通知权限来显示音乐播放状态。',
      permanentDenialText: '您已永久拒绝通知权限，请前往设置开启权限。',
      settingsButtonText: '去设置',
      cancelButtonText: '取消',
    );

    if (!granted) {
      Logger.warning('通知权限未被授予');
      return;
    }

    Logger.info('通知权限已授予');
  }

  /// 释放资源
  @override
  void onClose() {
    super.onClose();
  }

  //播放
  Future<void> play(Map<String, dynamic> song) async {
    await _musicService.playMusic(song);
  }

  //暂停
  Future<void> pause() async {
    await _musicService.pauseMusic();
  }

  //继续
  Future<void> resume() async {
    await _musicService.resumeMusic();
  }

  //状态
  Future<Map<String, dynamic>> getStatus() async {
    return await _musicService.getStatus();
  }

  //获取播放进度
  Future<Map<String, dynamic>> getProgress() async {
    return await _musicService.getProgress();
  }

  //跳转到指定位置
  Future<void> seekTo(int positionMs) async {
    await _musicService.seekTo(positionMs);
  }

  /// 播放音乐列表
  Future<void> playPlaylist(List<Map<String, dynamic>> playlist) async {
    await _musicService.playMusicPlaylist(playlist);
  }

  /// 更新媒体会话进度信息
  Future<void> updateMediaSessionProgress(
      int currentPosition, int duration, double progress) async {
    try {
      await _musicService.updateMediaSessionProgress(
          currentPosition, duration, progress);
    } catch (e) {
      Logger.d('MusicManager', '更新媒体会话进度失败: $e');
    }
  }

  /// 设置媒体会话回调
  Future<void> setMediaSessionCallbacks({
    required Function() onPlay,
    required Function() onPause,
    required Function() onNext,
    required Function() onPrevious,
    required Function(int) onSeekTo,
    required Function() onStop,
  }) async {
    try {
      await _musicService.setMediaSessionCallbacks(
        onPlay: onPlay,
        onPause: onPause,
        onNext: onNext,
        onPrevious: onPrevious,
        onSeekTo: onSeekTo,
        onStop: onStop,
      );
    } catch (e) {
      Logger.d('MusicManager', '设置媒体会话回调失败: $e');
    }
  }

  /// 更新媒体会话元数据
  Future<void> updateMediaSessionMetadata(Map<String, dynamic> song) async {
    try {
      await _musicService.updateMediaSessionMetadata(song);
    } catch (e) {
      Logger.d('MusicManager', '更新媒体会话元数据失败: $e');
    }
  }

  /// 更新媒体会话播放状态
  Future<void> updateMediaSessionPlaybackState(bool isPlaying) async {
    try {
      await _musicService.updateMediaSessionPlaybackState(isPlaying);
    } catch (e) {
      Logger.d('MusicManager', '更新媒体会话播放状态失败: $e');
    }
  }
}