import 'package:flutter/material.dart';

// 消息类型枚举
enum MessageType {
  deviceStatus,    // 设备状态
  accessControl,   // 通行权限
  systemNotice,    // 系统通知
}

// 消息数据模型
class MessageItem {
  final MessageType type;
  final String title;
  final String subtitle;
  final String time;
  final bool hasRedDot;

  MessageItem({
    required this.type,
    required this.title,
    required this.subtitle,
    required this.time,
    required this.hasRedDot,
  });

  // 根据消息类型获取图标
  IconData get icon {
    switch (type) {
      case MessageType.deviceStatus:
        return Icons.devices;
      case MessageType.accessControl:
        return Icons.security;
      case MessageType.systemNotice:
        return Icons.notifications;
    }
  }

  // 根据消息类型获取图标颜色
  Color get iconColor {
    switch (type) {
      case MessageType.deviceStatus:
        return const Color(0xFF4A90E2);
      case MessageType.accessControl:
        return const Color(0xFF4A90E2);
      case MessageType.systemNotice:
        return const Color(0xFFFF8C42);
    }
  }

  // 根据消息类型获取图标背景色
  Color get iconBgColor {
    switch (type) {
      case MessageType.deviceStatus:
        return const Color(0xFFE8F4FD);
      case MessageType.accessControl:
        return const Color(0xFFE8F4FD);
      case MessageType.systemNotice:
        return const Color(0xFFFFF2E8);
    }
  }

  // 创建副本，用于更新某些属性
  MessageItem copyWith({
    MessageType? type,
    String? title,
    String? subtitle,
    String? time,
    bool? hasRedDot,
  }) {
    return MessageItem(
      type: type ?? this.type,
      title: title ?? this.title,
      subtitle: subtitle ?? this.subtitle,
      time: time ?? this.time,
      hasRedDot: hasRedDot ?? this.hasRedDot,
    );
  }
}