nomo/lib/app/data/models/vpn_message.dart

// VPN消息数据模型
import 'dart:convert';

class VpnStatusMessage {
  final String type;
  final int status;
  final String message;

  VpnStatusMessage({
    required this.type,
    required this.status,
    required this.message,
  });

  factory VpnStatusMessage.fromJson(Map<String, dynamic> json) {
    return VpnStatusMessage(
      type: json['type'] ?? '',
      status: json['status'] ?? 0,
      message: json['message'] ?? '',
    );
  }

  Map<String, dynamic> toJson() {
    return {'type': type, 'status': status, 'message': message};
  }
}

class TimerUpdateMessage {
  final String type;
  final int currentTime;
  final int mode;
  final bool isRunning;
  final bool isPaused;

  TimerUpdateMessage({
    required this.type,
    required this.currentTime,
    required this.mode,
    required this.isRunning,
    required this.isPaused,
  });

  factory TimerUpdateMessage.fromJson(Map<String, dynamic> json) {
    return TimerUpdateMessage(
      type: json['type'] ?? '',
      currentTime: json['currentTime'] ?? 0,
      mode: json['mode'] ?? 0,
      isRunning: json['isRunning'] ?? false,
      isPaused: json['isPaused'] ?? false,
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'type': type,
      'currentTime': currentTime,
      'mode': mode,
      'isRunning': isRunning,
      'isPaused': isPaused,
    };
  }
}

class TimerNotificationMessage {
  final String type;
  final String message;

  TimerNotificationMessage({required this.type, required this.message});

  factory TimerNotificationMessage.fromJson(Map<String, dynamic> json) {
    return TimerNotificationMessage(
      type: json['type'] ?? '',
      message: json['message'] ?? '',
    );
  }

  Map<String, dynamic> toJson() {
    return {'type': type, 'message': message};
  }
}

// 通用消息处理器
class VpnMessageHandler {
  static void handleMessage(String jsonString) {
    try {
      final Map<String, dynamic> json = jsonDecode(jsonString);
      final String type = json['type'] ?? '';

      switch (type) {
        case 'vpn_status':
          _handleVpnStatus(VpnStatusMessage.fromJson(json));
          break;
        case 'timer_update':
          _handleTimerUpdate(TimerUpdateMessage.fromJson(json));
          break;
        case 'timer_notification':
          _handleTimerNotification(TimerNotificationMessage.fromJson(json));
          break;
        default:
          print('未知消息类型: $type');
      }
    } catch (e) {
      print('解析消息失败: $e');
    }
  }

  static void _handleVpnStatus(VpnStatusMessage message) {
    print('VPN状态变化: status=${message.status}, message=${message.message}');
    // 处理VPN状态变化
    // 例如：更新UI状态、显示通知等
  }

  static void _handleTimerUpdate(TimerUpdateMessage message) {
    print(
      '计时更新: time=${message.currentTime}, mode=${message.mode}, running=${message.isRunning}, paused=${message.isPaused}',
    );
    // 处理计时更新
    // 例如：更新计时器显示、更新UI状态等
  }

  static void _handleTimerNotification(TimerNotificationMessage message) {
    print('计时通知: ${message.message}');
    // 处理计时通知
    // 例如：显示Toast、更新通知栏等
  }
}