self.addEventListener('push', (event) => {
  let data = {};
  if (event.data) {
    try {
      data = event.data.json();
    } catch {
      data = { title: 'Groupe Méditation', body: event.data.text() };
    }
  }
  const title = data.title || 'Groupe Méditation';
  const options = {
    body: data.body || 'Nouvelle notification',
    icon: '/icon-192.png',
    badge: '/icon-192.png',
    data: { url: data.url || '/' },
  };
  event.waitUntil(self.registration.showNotification(title, options));
});

self.addEventListener('notificationclick', (event) => {
  event.notification.close();
  const url = event.notification.data?.url || '/';
  event.waitUntil(clients.openWindow(url));
});