Switch to event type

web/src/app/Poller.js

@@ -1,6 +1,7 @@
 import api from "./Api";
 import prefs from "./Prefs";
 import subscriptionManager from "./SubscriptionManager";
+import { EVENT_MESSAGE, EVENT_MESSAGE_DELETE } from "./events";
 
 const delayMillis = 2000; // 2 seconds
 const intervalMillis = 300000; // 5 minutes
@@ -55,7 +56,7 @@ class Poller {
 
     // Delete all existing notifications for which the latest notification is marked as deleted
     const deletedSequenceIds = Object.entries(latestBySequenceId)
-      .filter(([, notification]) => notification.deleted)
+      .filter(([, notification]) => notification.event === EVENT_MESSAGE_DELETE)
       .map(([sequenceId]) => sequenceId);
     if (deletedSequenceIds.length > 0) {
       console.log(`[Poller] Deleting notifications with deleted sequence IDs for ${subscription.id}`, deletedSequenceIds);
@@ -65,7 +66,9 @@ class Poller {
     }
 
     // Add only the latest notification for each non-deleted sequence
-    const notificationsToAdd = Object.values(latestBySequenceId).filter((n) => !n.deleted);
+    const notificationsToAdd = Object
+      .values(latestBySequenceId)
+      .filter(n => n.event === EVENT_MESSAGE);
     if (notificationsToAdd.length > 0) {
       console.log(`[Poller] Adding ${notificationsToAdd.length} notification(s) for ${subscription.id}`);
       await subscriptionManager.addNotifications(subscription.id, notificationsToAdd);