Add homelab service and system health monitoring

email.go

@@ -111,6 +111,55 @@ func sendAlertEmail(settings EmailSettings, alerts []Alert, test bool) error {
 	return client.Quit()
 }
 
+func sendRecoveryEmail(settings EmailSettings, items []RecoveryEvent) error {
+	alerts := make([]Alert, 0, len(items))
+	for _, v := range items {
+		alerts = append(alerts, Alert{ID: v.ID, Severity: "info", Source: v.Source, Title: "Восстановлено: " + v.Title, Message: "Проблема больше не наблюдается."})
+	}
+	return sendAlertEmail(settings, alerts, false)
+}
+
+func runImmediateNotifier(collect func() (dashboardMetrics, error), store *Store) {
+	ticker := time.NewTicker(5 * time.Second)
+	defer ticker.Stop()
+	for range ticker.C {
+		settings := store.EmailSettings(true)
+		if !settings.Enabled {
+			continue
+		}
+		if _, err := collect(); err != nil {
+			continue
+		}
+		urgent, err := store.PendingImmediateAlerts()
+		if err == nil && len(urgent) > 0 {
+			urgent = filterEmailAlerts(urgent, settings)
+			if len(urgent) > 0 && sendAlertEmail(settings, urgent, false) == nil {
+				_ = store.MarkAlertsEmailed(urgent)
+			}
+		}
+		recoveries, err := store.PendingRecoveries()
+		if err == nil && len(recoveries) > 0 {
+			var filtered []RecoveryEvent
+			for _, v := range recoveries {
+				if contains(settings.Sources, v.Source) {
+					filtered = append(filtered, v)
+				}
+			}
+			if len(filtered) > 0 && sendRecoveryEmail(settings, filtered) == nil {
+				_ = store.MarkRecoveriesEmailed(filtered)
+			}
+		}
+	}
+}
+func contains(items []string, want string) bool {
+	for _, v := range items {
+		if v == want {
+			return true
+		}
+	}
+	return false
+}
+
 func runEmailNotifier(collect func() (dashboardMetrics, error), store *Store) {
 	ticker := time.NewTicker(time.Minute)
 	defer ticker.Stop()