const CACHE_NAME = 'donation-platform-v2'; // Changed cache name
const urlsToCache = [
  'assets/css/custom.css',
  'assets/js/main.js'
];

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

self.addEventListener('activate', event => {
  var cacheKeeplist = [CACHE_NAME];
  event.waitUntil(
    caches.keys().then(keylist => {
      return Promise.all(keylist.map(key => {
        if (cacheKeeplist.indexOf(key) === -1) {
          return caches.delete(key);
        }
      }));
    })
  );
});

self.addEventListener('fetch', event => {
  // Use a network-first strategy for HTML pages
  if (event.request.mode === 'navigate' || (event.request.method === 'GET' && event.request.headers.get('accept').includes('text/html'))) {
    event.respondWith(
      fetch(event.request).catch(() => {
        return caches.match(event.request);
      })
    );
    return;
  }

  // Use a cache-first strategy for other assets
  event.respondWith(
    caches.match(event.request)
      .then(response => {
        return response || fetch(event.request);
      })
  );
});