importScripts('https://www.gstatic.com/firebasejs/9.22.2/firebase-app-compat.js');
importScripts('https://www.gstatic.com/firebasejs/9.22.2/firebase-messaging-compat.js');

// This file must be served with "Content-Type: application/javascript" and
// placed at the root of the `web/` build output. Flutter web does not copy it
// automatically, so ensure you add a manual copy step to your build script or
// include it in `web/` before building.

firebase.initializeApp({
  // values must match `firebase_options.dart` generated by `flutterfire`
  apiKey: 'AIzaSyBKGSaHYiqpZvbEgsvJJY45soiIkV6MV3M',
  appId: '1:173359574734:web:f894a6b43a443e902baa9f',
  messagingSenderId: '173359574734',
  projectId: 'tasq-17fb3',
  authDomain: 'tasq-17fb3.firebaseapp.com',
  storageBucket: 'tasq-17fb3.firebasestorage.app',
});

const messaging = firebase.messaging();

messaging.onBackgroundMessage(function(payload) {
  const notificationTitle = payload.notification?.title
    || payload.data?.title
    || 'TasQ Notification';
  const notificationBody = payload.notification?.body
    || payload.data?.body
    || '';

  const notificationOptions = {
    body: notificationBody,
    icon: '/icons/Icon-192.png',
    badge: '/icons/Icon-192.png',
    data: payload.data,
    // tag deduplicates: same notification_id won't stack
    tag: payload.data?.notification_id || payload.messageId || 'tasq',
    renotify: true,
  };

  return self.registration.showNotification(notificationTitle, notificationOptions);
});

// Handle notification click — focus the PWA window and navigate to the
// relevant task / ticket route based on the data payload.
self.addEventListener('notificationclick', function(event) {
  event.notification.close();

  const data = event.notification.data || {};
  const navigateTo = data.navigate_to || data.route;
  const taskId = data.task_id || data.taskId;
  const ticketId = data.ticket_id || data.ticketId;

  let targetPath = '/';
  if (navigateTo && navigateTo !== '/') {
    targetPath = navigateTo;
  } else if (taskId) {
    targetPath = '/tasks/' + taskId;
  } else if (ticketId) {
    targetPath = '/tickets/' + ticketId;
  }

  event.waitUntil(
    clients
      .matchAll({ type: 'window', includeUncontrolled: true })
      .then(function(clientList) {
        // If the app is already open, navigate it and bring it to front
        for (const client of clientList) {
          if ('navigate' in client) {
            client.navigate(targetPath);
            return client.focus();
          }
        }
        // Otherwise open a new window
        if (clients.openWindow) {
          return clients.openWindow(targetPath);
        }
      })
  );
});