import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:get/get.dart';
import 'package:get_storage/get_storage.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:logger/logger.dart';
import 'package:flutter/services.dart';

/// 配置服务，用于管理应用配置和环境变量
class ConfigService extends GetxService {
  final Logger _logger = Logger();
  late final SharedPreferences _prefs;
  
  // 创建一个 MethodChannel 用于与原生代码通信
  static const MethodChannel _channel = MethodChannel('com.example.deep_voice/config');
  
  // 初始化服务
  Future<ConfigService> init() async {
    try {
      _prefs = await SharedPreferences.getInstance();
      
      // 从 .env 读取 Azure 语音服务配置
      final azureSpeechKey = dotenv.env['AZURE_ASR_SUBSCRIPTION_KEY'];
      final azureSpeechRegion = dotenv.env['AZURE_ASR_SERVICE_REGION'];
      
      // 从 .env 读取火山 AI API Key
      final volcanoAiApiKey = dotenv.env['VOLCANO_AI_API_KEY'];
      
      
      // 通过 MethodChannel 向原生代码传递配置值
      try {
        await _channel.invokeMethod('setConfig', {
          'azure_speech_key': azureSpeechKey ?? '',
          'azure_speech_region': azureSpeechRegion ?? '',
          'volcano_ai_api_key': volcanoAiApiKey ?? '',
        });
        _logger.i('已通过 MethodChannel 向原生代码传递配置值');
      } catch (e) {
        _logger.e('通过 MethodChannel 传递配置值失败: $e');
      }
      
      return this;
    } catch (e) {
      _logger.e('初始化配置服务失败: $e');
      rethrow;
    }
  }
  
  // 获取配置值
  String? getString(String key) {
    return _prefs.getString(key);
  }
  
  // 设置配置值
  Future<bool> setString(String key, String value) {
    return _prefs.setString(key, value);
  }
}