// Network-first SW: static assets are cached after first fetch;
// API calls always go to the network.
const CACHE = 'turnup-v1';

self.addEventListener('install', () => {
  self.skipWaiting();
});

self.addEventListener('activate', (e) => {
  e.waitUntil(
    caches.keys().then((keys) =>
      Promise.all(keys.filter((k) => k !== CACHE).map((k) => caches.delete(k)))
    )
  );
  self.clients.claim();
});

self.addEventListener('fetch', (e) => {
  // Always go network-first for API calls so the UI never serves stale data
  if (e.request.url.includes('/api/')) return;

  e.respondWith(
    fetch(e.request)
      .then((response) => {
        const clone = response.clone();
        caches.open(CACHE).then((c) => c.put(e.request, clone));
        return response;
      })
      .catch(() => caches.match(e.request))
  );
});