# 远程告警通知配置示例

## 启用通知服务

在 `App.axaml.cs` 的 `StartServices()` 方法中添加：

```csharp
// 启用通知服务
var notificationService = NotificationService.Instance;
notificationService.IsEnabled = true;
notificationService.ThrottleSeconds = 60;  // 同一报警至少间隔 60 秒

// 添加企业微信通知
var wechatWebhook = ConfigService.Instance.GetValue<string>("Notification:WeChatWorkWebhook");
if (!string.IsNullOrEmpty(wechatWebhook))
{
    notificationService.AddChannel(new WeChatWorkNotification(wechatWebhook, new HttpClient()));
    Log.Information("已启用企业微信告警通知");
}

// 添加钉钉通知
var dingtalkWebhook = ConfigService.Instance.GetValue<string>("Notification:DingTalkWebhook");
if (!string.IsNullOrEmpty(dingtalkWebhook))
{
    notificationService.AddChannel(new DingTalkNotification(dingtalkWebhook, new HttpClient()));
    Log.Information("已启用钉钉告警通知");
}

// 添加邮件通知
var emailConfig = ConfigService.Instance.GetSection("Notification:Email");
if (emailConfig != null)
{
    var emailChannel = new EmailNotification(
        emailConfig["SmtpServer"],
        int.Parse(emailConfig["SmtpPort"] ?? "587"),
        emailConfig["FromEmail"],
        emailConfig["FromPassword"],
        emailConfig["ToEmails"].Split(',')
    );
    notificationService.AddChannel(emailChannel);
    Log.Information("已启用邮件告警通知");
}
```

## 配置文件示例（yzwater-config.json）

```json
{
  "Notification": {
    "Enabled": true,
    "ThrottleSeconds": 60,
    "NotifyOnAlarm": true,
    "NotifyOnEscalation": true,
    "NotifyOnPlcDisconnect": true,
    "WeChatWorkWebhook": "https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=YOUR_KEY",
    "DingTalkWebhook": "https://oapi.dingtalk.com/robot/send?access_token=YOUR_TOKEN",
    "Email": {
      "SmtpServer": "smtp.example.com",
      "SmtpPort": "587",
      "FromEmail": "alarm@example.com",
      "FromPassword": "your_password",
      "ToEmails": "admin@example.com,operator@example.com"
    }
  }
}
```

## 通知触发场景

1. **新报警触发**：当液位、流量、设备故障等报警触发时
2. **报警升级**：未确认报警超过 `EscalationMinutes`（默认 10 分钟）自动升级
3. **PLC 连接断开**：PLC 通信中断，进入降级模式
4. **PLC 连接恢复**：PLC 通信恢复正常

## 通知限流

- 同一报警在 `ThrottleSeconds`（默认 60 秒）内只发送一次
- 防止报警风暴导致通知泛滥

## 自定义通知渠道

实现 `INotificationChannel` 接口：

```csharp
public class MyCustomNotification : INotificationChannel
{
    public string Name => "MyCustom";

    public async Task SendAsync(string title, string message, NotificationLevel level)
    {
        // 实现你的通知逻辑
        // 例如：SMS、Slack、Telegram 等
    }
}
```