const CACHE = 'gree-controller-__GREE_ASSET_CACHE__';
const SCOPE = new URL(self.registration.scope).pathname.replace(/\/$/, '');
const path = value => `${SCOPE}${value.startsWith('/') ? value : `/${value}`}` || '/';
const ASSETS = [path('__GREE_STYLES_ASSET__'), path('__GREE_APP_ASSET__'), path('__GREE_THEME_INIT_ASSET__'), path('__GREE_LANG_INIT_ASSET__'), path('/manifest.webmanifest')];
self.addEventListener('install', event => event.waitUntil(caches.open(CACHE).then(cache => cache.addAll(ASSETS)).then(() => self.skipWaiting())));
self.addEventListener('activate', event => event.waitUntil(caches.keys().then(keys => Promise.all(keys.filter(key => key !== CACHE).map(key => caches.delete(key)))).then(() => self.clients.claim())));
self.addEventListener('fetch', event => {
  const url = new URL(event.request.url);
  if (
    event.request.method !== 'GET'
    || (url.protocol !== 'http:' && url.protocol !== 'https:')
    || url.origin !== self.location.origin
    || url.pathname.startsWith(path('/api/'))
    || url.pathname.startsWith(path('/lang/'))
    || event.request.mode === 'navigate'
  ) return;

  event.respondWith((async () => {
    const cached = await caches.match(event.request);
    if (cached) return cached;

    const response = await fetch(event.request);
    if (response.ok && response.type === 'basic') {
      try {
        const cache = await caches.open(CACHE);
        await cache.put(event.request, response.clone());
      } catch (_) {
        // Cache failures must not break the network response.
      }
    }
    return response;
  })());
});