import 'package:get/get.dart';
import 'package:flutter/material.dart';
import '../../../core/themes/theme_service.dart';
import '../../../data/services/speech_factory.dart';

class SettingsController extends GetxController {
  // 主题服务
  final ThemeService _themeService = ThemeService();
  
  // 是否是暗黑模式
  final RxBool isDarkMode = false.obs;
  
  // 翻译语言对
  final RxString sourceLanguage = '中文'.obs;
  final RxString targetLanguage = '英文'.obs;
  final List<String> availableLanguages = ['中文', '英文', '日文', '韩文', '法文', '德文', '西班牙文', '俄文'];
  
  // 语音服务类型
  final Rx<SpeechServiceType> speechServiceType = SpeechServiceType.azure.obs;
  final List<Map<String, dynamic>> availableSpeechServices = [
    {'type': SpeechServiceType.azure, 'name': 'Azure 语音服务', 'description': '微软云端语音服务，支持高质量语音合成和识别'},
    {'type': SpeechServiceType.flutter, 'name': 'Flutter 本地语音服务', 'description': '设备本地语音服务，无需联网即可使用'},
  ];
  
  @override
  void onInit() {
    super.onInit();
    
    // 从存储中加载上次保存的主题设置
    final savedDarkMode = _themeService.isSavedDarkMode();
    
    // 设置当前主题状态
    isDarkMode.value = savedDarkMode;
    
    // 获取当前语音服务类型
    _loadCurrentSpeechServiceType();
  }
  
  // 加载当前语音服务类型
  void _loadCurrentSpeechServiceType() {
    try {
      final factory = Get.find<SpeechFactory>();
      speechServiceType.value = factory.currentServiceType;
    } catch (e) {
      // 如果找不到SpeechFactory实例，使用默认值
    }
  }
  
  // 切换主题
  Future<void> toggleTheme() async {
    // 切换暗黑模式状态
    isDarkMode.value = !isDarkMode.value;
    
    // 更新全局主题
    Get.changeThemeMode(isDarkMode.value ? ThemeMode.dark : ThemeMode.light);
    
    // 保存用户选择的主题设置 - 确保立即写入存储
    await _themeService.saveThemeMode(isDarkMode.value);
  }
  
  // 设置语音服务类型
  void setSpeechServiceType(SpeechServiceType type) {
    try {
      final factory = Get.find<SpeechFactory>();
      factory.setServiceType(type);
      speechServiceType.value = type;
    } catch (e) {
      // 处理错误
    }
  }
  
  void setSourceLanguage(String language) {
    sourceLanguage.value = language;
  }
  
  void setTargetLanguage(String language) {
    targetLanguage.value = language;
  }
  
  void swapLanguages() {
    final temp = sourceLanguage.value;
    sourceLanguage.value = targetLanguage.value;
    targetLanguage.value = temp;
  }
  
  void signOut() {
    // 在此实现退出登录逻辑
    Get.offAllNamed('/login');
  }
}