https://genzox.in/sw.js

1/* GenzoX Service Worker — VAPID Web Push (Iter50) + foreground notifications + click routing.
2 *
3 * iOS Safari 16.4+ supports notifications ONLY when the site is added to Home Screen
4 * (standalone mode) AND notifications are dispatched via ServiceWorkerRegistration.showNotification().
5 * Server-initiated VAPID push (this `push` handler) works the same way on iOS PWA installs.
6 */
7
8self.addEventListener('install', () => {
9  self.skipWaiting();
10});
11
12self.addEventListener('activate', (event) => {
13  event.waitUntil(self.clients.claim());
14});
15
16// Server-initiated VAPID push messages land here. Parse the JSON payload sent by the backend
17// (send_push_to_user) and surface it via showNotification.
18self.addEventListener('push', (event) => {
19  let data = { title: 'GenzoX', body: 'You have a new message', url: '/chat' };
20  if (event.data) {
21    try { data = { ...data, ...event.data.json() }; }
22    catch (_) {
23      try { data.body = event.data.text() || data.body; } catch (_e) {}
24    }
25  }
26  const title = data.title || 'GenzoX';
27  const options = {
28    body: data.body || 'You have a new message',
29    icon: '/favicon-192.png',
30    badge: '/favicon-128.png',
31    tag: data.tag || 'genzox-push',
32    data: { url: data.url || '/chat' },
33    requireInteraction: false,
34  };
35  event.waitUntil(self.registration.showNotification(title, options));
36});
37
38// Handle clicks on showNotification() events — focus tab and navigate to chat thread.
39self.addEventListener('notificationclick', (event) => {
40  event.notification.close();
41  const targetUrl = (event.notification.data && event.notification.data.url) || '/chat';
42  event.waitUntil(
43    self.clients.matchAll({ type: 'window', includeUncontrolled: true }).then((clientList) => {
44      for (const client of clientList) {
45        if (client.url && 'focus' in client) {
46          client.focus();
47          if ('navigate' in client) {
48            try { client.navigate(targetUrl); } catch (_) {}
49          }
50          return;
51        }
52      }
53      if (self.clients.openWindow) {
54        return self.clients.openWindow(targetUrl);
55      }
56    })
57  );
58});