add alerts for smart failures

internal/alerts/alerts_smart.go

@@ -0,0 +1,67 @@
+package alerts
+
+import (
+	"fmt"
+
+	"github.com/pocketbase/pocketbase/core"
+)
+
+// handleSmartDeviceAlert sends alerts when a SMART device state changes from PASSED to FAILED.
+// This is automatic and does not require user opt-in.
+func (am *AlertManager) handleSmartDeviceAlert(e *core.RecordEvent) error {
+	oldState := e.Record.Original().GetString("state")
+	newState := e.Record.GetString("state")
+
+	// Only alert when transitioning from PASSED to FAILED
+	if oldState != "PASSED" || newState != "FAILED" {
+		return e.Next()
+	}
+
+	systemID := e.Record.GetString("system")
+	if systemID == "" {
+		return e.Next()
+	}
+
+	// Fetch the system record to get the name and users
+	systemRecord, err := e.App.FindRecordById("systems", systemID)
+	if err != nil {
+		e.App.Logger().Error("Failed to find system for SMART alert", "err", err, "systemID", systemID)
+		return e.Next()
+	}
+
+	systemName := systemRecord.GetString("name")
+	deviceName := e.Record.GetString("name")
+	model := e.Record.GetString("model")
+
+	// Build alert message
+	title := fmt.Sprintf("SMART failure on %s: %s \U0001F534", systemName, deviceName)
+	var message string
+	if model != "" {
+		message = fmt.Sprintf("Disk %s (%s) SMART status changed to FAILED", deviceName, model)
+	} else {
+		message = fmt.Sprintf("Disk %s SMART status changed to FAILED", deviceName)
+	}
+
+	// Get users associated with the system
+	userIDs := systemRecord.GetStringSlice("users")
+	if len(userIDs) == 0 {
+		return e.Next()
+	}
+
+	// Send alert to each user
+	for _, userID := range userIDs {
+		if err := am.SendAlert(AlertMessageData{
+			UserID:   userID,
+			SystemID: systemID,
+			Title:    title,
+			Message:  message,
+			Link:     am.hub.MakeLink("system", systemID),
+			LinkText: "View " + systemName,
+		}); err != nil {
+			e.App.Logger().Error("Failed to send SMART alert", "err", err, "userID", userID)
+		}
+	}
+
+	return e.Next()
+}
+