const CACHE_NAME = 'telecom-dashboard-v1';
const urlsToCache = [
  '/',
  '/login',
  '/dashboard',
  '/services',
  '/monitoring',
  '/deploy',
  '/plugins',
  '/automation',
  '/chaos',
  '/billing',
  '/config',
];

self.addEventListener('install', (event) => {
  event.waitUntil(
    caches.open(CACHE_NAME)
      .then((cache) => {
        return cache.addAll(urlsToCache);
      })
  );
});

self.addEventListener('fetch', (event) => {
  event.respondWith(
    caches.match(event.request)
      .then((response) => {
        if (response) {
          return response;
        }
        return fetch(event.request).catch(() => {
          return caches.match('/offline.html');
        });
      })
  );
});

self.addEventListener('activate', (event) => {
  event.waitUntil(
    caches.keys().then((cacheNames) => {
      return Promise.all(
        cacheNames.map((cacheName) => {
          if (cacheName !== CACHE_NAME) {
            return caches.delete(cacheName);
          }
        })
      );
    })
  );
});