liangchengyou / wow_english

  import 'dart:async';
  

  import 'package:flutter/material.dart';
  
  import '../../utils/audio_player_util.dart';

  import '../../utils/log_util.dart';

  
  /// action前播放音乐控制类，维护状态做防抖处理
  /// todo 需要结合生命周期，尤其是在声明周期结束后及时中断，避免action泄漏

  class ClickWithMusicController {

    static ClickWithMusicController? _instance;

    static String TAG = 'ClickWithMusicController';
  

    ClickWithMusicController._privateConstructor();
  
    static ClickWithMusicController get instance => _instance ??= ClickWithMusicController._privateConstructor();

  
    bool _isPlaying = false;
  

    ///@param context 暂时没用到，先可空预留

    ///@param action 可以是同步函数也可以是异步函数

    Future<void> playMusicAndPerformAction(BuildContext? context,

        AudioPlayerUtilType audioType, FutureOr<void> Function() action) async {

      Log.d("$TAG playMusicAndPerformAction _isPlaying=$_isPlaying audioType=$audioType");

      ///todo 是否需要考虑打断覆盖能力

      if (_isPlaying) return;
  
      _isPlaying = true;

      Log.d("$TAG playMusicAndPerformAction playAudio begin");

      await AudioPlayerUtil.getInstance().pause();

      // Play the music
      await AudioPlayerUtil.getInstance()
          .playAudio(audioType);
  

      try {
        await Future.sync(action);
      } catch (e) {

        Log.d('$TAG playMusicAndPerformAction exception $e');

      } finally {

        Log.d("$TAG playMusicAndPerformAction playAudio end");

        _isPlaying = false;
      }

    }
  

    Future<void> reset() async {

      _isPlaying = false;

      await AudioPlayerUtil.getInstance().stop();

    }
  

    // void dispose() {
    //   _audioPlayer.dispose();
    // }
  }