const CACHE_NAME = 'mpa-projectflow-v2-4-20-login-redesign';
const CORE_ASSETS = [
  './offline.html',
  './assets/style.css?v=2.4.20',
  './assets/app.js?v=2.4.17',
  './assets/pwa.js?v=2.4.6',
  './assets/logo.png',
  './assets/favicon-192.png',
  './assets/favicon-32.png',
  './favicon.ico'
];
self.addEventListener('install', (event) => {
  event.waitUntil(caches.open(CACHE_NAME).then((cache) => cache.addAll(CORE_ASSETS)).catch(() => null));
  self.skipWaiting();
});
self.addEventListener('activate', (event) => {
  event.waitUntil(caches.keys().then((keys) => Promise.all(keys.filter((key) => key !== CACHE_NAME).map((key) => caches.delete(key)))));
  self.clients.claim();
});
self.addEventListener('fetch', (event) => {
  const request = event.request;
  const url = new URL(request.url);
  if (request.method !== 'GET') return;
  if (url.pathname.endsWith('/api.php') || url.pathname.endsWith('/download.php') || url.pathname.endsWith('/export.php') || url.pathname.endsWith('/po_print.php')) return;
  event.respondWith(
    fetch(request).then((response) => {
      const copy = response.clone();
      if (response.ok && (request.destination === 'style' || request.destination === 'script' || request.destination === 'image' || request.destination === 'manifest')) {
        caches.open(CACHE_NAME).then((cache) => cache.put(request, copy));
      }
      return response;
    }).catch(() => caches.match(request).then((cached) => cached || caches.match('./offline.html')))
  );
});