chore: address code-rabbit suggestions

Author: coodos

infrastructure/eid-wallet/src/lib/services/NotificationService.ts

@@ -1,5 +1,5 @@
 import { PUBLIC_PROVISIONER_URL } from "$env/static/public";
-import { addNotification } from "$lib/stores/notifications";
+import { addNotification, hasNotification } from "$lib/stores/notifications";
 import {
     isPermissionGranted,
     onNotificationReceived,
@@ -422,11 +422,11 @@ class NotificationService {
                 ),
             );
 
-            addNotification({
-                title,
-                body: notification.body ?? "",
-                data: Object.keys(data).length > 0 ? data : undefined,
-            });
+            const body = notification.body ?? "";
+            const payload = Object.keys(data).length > 0 ? data : undefined;
+            if (!hasNotification(title, body, payload)) {
+                addNotification({ title, body, data: payload });
+            }
         });
     }
 

infrastructure/eid-wallet/src/lib/stores/notifications.ts

@@ -50,6 +50,18 @@ export function getUnreadCount(): number {
     return loadNotifications().length;
 }
 
+export function hasNotification(
+    title: string,
+    body: string,
+    data?: Record<string, string>,
+): boolean {
+    const notifications = loadNotifications();
+    const key = `${title}\0${body}\0${JSON.stringify(data ?? {})}`;
+    return notifications.some(
+        (n) => `${n.title}\0${n.body}\0${JSON.stringify(n.data ?? {})}` === key,
+    );
+}
+
 export function addNotification(
     notification: Omit<StoredNotification, "id" | "createdAt">,
 ): void {