https://alitariffs.com/sw.js

1/**
2 * AliTariffs service worker — handles browser push notifications.
3 * Served from / so it controls the entire site origin.
4 */
5
6self.addEventListener('install', (event) => {
7  self.skipWaiting();
8});
9
10self.addEventListener('activate', (event) => {
11  event.waitUntil(self.clients.claim());
12});
13
14self.addEventListener('push', (event) => {
15  let data = {};
16  try {
17    data = event.data ? event.data.json() : {};
18  } catch {
19    data = { title: 'AliTariffs', body: event.data ? event.data.text() : '' };
20  }
21
22  const title = data.title || 'AliTariffs — Weekly deal';
23  const options = {
24    body: data.body || 'New AliExpress deal — tap to see the landed cost.',
25    icon: data.icon || '/favicon.svg',
26    badge: data.badge || '/favicon.svg',
27    image: data.image,
28    tag: data.tag || 'alitariffs-weekly',
29    renotify: true,
30    requireInteraction: false,
31    data: {
32      url: data.url || 'https://alitariffs.com/',
33      productUrl: data.productUrl
34    },
35    actions: data.url
36      ? [{ action: 'open', title: 'View deal' }, { action: 'close', title: 'Dismiss' }]
37      : undefined
38  };
39
40  event.waitUntil(self.registration.showNotification(title, options));
41});
42
43self.addEventListener('notificationclick', (event) => {
44  event.notification.close();
45  if (event.action === 'close') return;
46  const url = event.notification.data?.url || 'https://alitariffs.com/';
47  event.waitUntil(
48    self.clients.matchAll({ type: 'window', includeUncontrolled: true }).then((clientList) => {
49      // Focus an existing tab if one is open
50      for (const client of clientList) {
51        if (client.url === url && 'focus' in client) return client.focus();
52      }
53      // Otherwise open a new one
54      if (self.clients.openWindow) return self.clients.openWindow(url);
55    })
56  );
57});
58
59self.addEventListener('pushsubscriptionchange', (event) => {
60  // Re-subscribe with the new endpoint when the browser rotates it
61  event.waitUntil(
62    self.registration.pushManager
63      .subscribe({
64        userVisibleOnly: true,
65        applicationServerKey: event.oldSubscription?.options?.applicationServerKey
66      })
67      .then((newSub) =>
68        fetch('/api/push/subscribe', {
69          method: 'POST',
70          headers: { 'Content-Type': 'application/json' },
71          body: JSON.stringify({ subscription: newSub.toJSON() })
72        })
73      )
74  );
75});