// Service Worker for PWA functionality
const CACHE_NAME = 'aethex-v1';
const urlsToCache = [
  '/',
  '/mobile',
  '/home',
  '/manifest.json',
  '/favicon.png'
];

// Install event - cache assets
self.addEventListener('install', (event) => {
  event.waitUntil(
    caches.open(CACHE_NAME)
      .then((cache) => {
        console.log('[SW] Caching app shell');
        return cache.addAll(urlsToCache);
      })
      .catch((err) => {
        console.error('[SW] Cache failed:', err);
      })
  );
  self.skipWaiting();
});

// Activate event - clean up old caches
self.addEventListener('activate', (event) => {
  event.waitUntil(
    caches.keys().then((cacheNames) => {
      return Promise.all(
        cacheNames.map((cacheName) => {
          if (cacheName !== CACHE_NAME) {
            console.log('[SW] Deleting old cache:', cacheName);
            return caches.delete(cacheName);
          }
        })
      );
    })
  );
  self.clients.claim();
});

// Fetch event - network first, fallback to cache
self.addEventListener('fetch', (event) => {
  if (event.request.method !== 'GET' || !event.request.url.startsWith('http')) {
    return;
  }

  event.respondWith(
    fetch(event.request)
      .then((response) => {
        if (!response || response.status !== 200 || response.type !== 'basic') {
          return response;
        }
        const responseToCache = response.clone();
        caches.open(CACHE_NAME).then((cache) => {
          cache.put(event.request, responseToCache);
        });
        return response;
      })
      .catch(() => {
        return caches.match(event.request).then((cachedResponse) => {
          return cachedResponse || (event.request.mode === 'navigate' ? caches.match('/') : null);
        });
      })
  );
});

// Push notification
self.addEventListener('push', (event) => {
  const options = {
    body: event.data ? event.data.text() : 'New notification',
    icon: '/favicon.png',
    vibrate: [200, 100, 200],
    actions: [
      { action: 'explore', title: 'View' },
      { action: 'close', title: 'Close' }
    ]
  };
  event.waitUntil(
    self.registration.showNotification('AeThex OS', options)
  );
});

// Notification click
self.addEventListener('notificationclick', (event) => {
  event.notification.close();
  if (event.action === 'explore') {
    event.waitUntil(clients.openWindow('/mobile'));
  }
});