qds/public/service-worker.js

self.addEventListener('push', function (event) {
    console.log('[SW] Push received');

    let payload = {};

    if (event.data) {
        try {
            payload = event.data.json();
        } catch (e) {
            payload = { body: event.data.text() };
        }
    }

    const title = payload.title || 'Notification';

    const options = {
        body: payload.body || '',
        icon: payload.icon || '/pwa-192x192.png',
        badge: payload.icon || '/pwa-192x192.png',
        data: payload.data || {},
    };

    event.waitUntil(
        self.registration.showNotification(title, options)
    );
});

self.addEventListener('notificationclick', function (event) {
    event.notification.close();

    const url = event.notification.data?.url || '/admin';

    event.waitUntil(
        clients.openWindow(url)
    );
});