// BitSage Service Worker
const CACHE_NAME = 'bitsage-v1';
const ASSETS_TO_CACHE = [
  '/',
  '/index.html',
  '/index.tsx'
];

self.addEventListener('install', (event) => {
  self.skipWaiting();
  event.waitUntil(
    caches.open(CACHE_NAME).then((cache) => {
      // Best effort caching
      return cache.addAll(ASSETS_TO_CACHE).catch(() => {});
    })
  );
});

self.addEventListener('activate', (event) => {
  event.waitUntil(self.clients.claim());
});

self.addEventListener('fetch', (event) => {
  // Simple pass-through fetch handler to satisfy PWA requirements
  // In a full production app, you might want more robust offline caching
  event.respondWith(
    fetch(event.request).catch(() => {
      return caches.match(event.request);
    })
  );
});