const CACHE_NAME = 'eur-dzd-calculator-v1';
const urlsToCache = [
  '/',
  '/index.html',
  '/icon.png',
  '/manifest.json',
  // Add more URLs of assets to cache here
];

self.addEventListener('install', event => {
  event.waitUntil(
    caches.open(CACHE_NAME)
      .then(cache => cache.addAll(urlsToCache))
      .catch(error => console.error('Error caching assets:', error))
  );
});

self.addEventListener('fetch', event => {
  event.respondWith(
    caches.match(event.request)
      .then(response => {
        if (response) {
          return response; // Serve cached asset if available
        }
        return fetch(event.request); // Otherwise, fetch from network
      })
      .catch(error => console.error('Error fetching asset:', error))
  );
});