import 'dart:async';
import 'package:audio_service/audio_service.dart';
import 'package:get/get.dart';
import 'package:flutter/material.dart';
import 'my_audio_handler.dart';
import '../../modules/chat/controllers/chat_controller.dart';
import '../../data/providers/agent_provider.dart';
import 'volcano_tts_service.dart';

class AudioServiceManager extends GetxService {
  static AudioServiceManager get to => Get.find();
  late MyAudioHandler _audioHandler;
  StreamSubscription? _customEventSubscription;

  Future<AudioServiceManager> init() async {
    print('初始化 AudioService');
    
    try {
      // 初始化 AudioService
      _audioHandler = await AudioService.init(
        builder: () => MyAudioHandler(),
        config: const AudioServiceConfig(
          androidNotificationChannelId: 'com.example.deep_voice.channel.audio',
          androidNotificationChannelName: 'Deep Voice Audio Service',
          androidNotificationIcon: 'drawable/ic_notification',
          androidNotificationOngoing: true,
          androidStopForegroundOnPause: true,
          androidShowNotificationBadge: true,
          notificationColor: Colors.blue,
        ),
      );

      // 监听自定义事件
      _customEventSubscription = _audioHandler.customEventStream.listen((event) {
        if (event == 'activate_app') {
          print('收到激活应用事件');
          _activateAppWithPersonalAssistant();
        }
      });

      return this;
    } catch (e) {
      print('AudioService初始化失败: $e');
      rethrow;
    }
  }

  void _activateAppWithPersonalAssistant() {
    try {
      // 获取 personal_assistant agent
      final agent = AgentProvider.getAgentById('personal_assistant');
      if (agent == null) {
        print('未找到 personal_assistant agent');
        return;
      }

      // 导航到聊天页面，传递 agent 参数
      Get.toNamed('/chat', arguments: {
        'agentId': agent.id,
        'agentName': agent.name,
        'agentAvatar': agent.avatarUrl,
        'agentSubtitle': agent.description,
        'systemPrompt': agent.systemPrompt,
        'welcomeMessage': agent.welcomeMessage,
      });
      
      // ChatController 会自动处理欢迎消息和问候语的显示与播放
    } catch (e) {
      print('激活应用失败: $e');
    }
  }

  @override
  void onClose() {
    _customEventSubscription?.cancel();
    _audioHandler.stop();
    super.onClose();
  }
}