// Tavolo service worker: installability only, no offline caching.
//
// The app is a thin client for a live game server: state arrives over
// /api and /ws and is never safe to replay from a cache, and a new build
// changes the hashed asset names, so stale cached files would break the
// app until the cache expired. The worker therefore only performs the
// passthrough fetch below — enough for the browser to treat the app as
// installable — and leaves every request's caching to the network stack.

self.addEventListener("install", () => {
  // A new worker takes over on the next reload instead of waiting for
  // every tab of the old version to close.
  self.skipWaiting();
});

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

self.addEventListener("fetch", (event) => {
  const url = new URL(event.request.url);
  // Let the browser handle other origins and the live endpoints directly
  // (respondWith would only add a hop; /auth navigations must be allowed
  // to follow their redirects untouched).
  if (
    url.origin !== self.location.origin ||
    url.pathname.startsWith("/api/") ||
    url.pathname.startsWith("/auth/") ||
    url.pathname.startsWith("/ws")
  ) {
    return;
  }
  event.respondWith(fetch(event.request));
});