const CACHE_NAME = 'opal-ai-v2-cache';
const ASSETS = [
  './',
  './index.html',
  './style.css',
  './app.js',
  './manifest.json',
  'https://cdnjs.cloudflare.com/ajax/libs/qrcodejs/1.0.0/qrcode.min.js'
];

self.addEventListener('install', (e) => {
  e.waitUntil(
    caches.open(CACHE_NAME).then((cache) => {
      return cache.addAll(ASSETS);
    })
  );
  self.skipWaiting();
});

self.addEventListener('activate', (e) => {
  e.waitUntil(
    caches.keys().then((keys) => {
      return Promise.all(
        keys.map((key) => {
          if (key !== CACHE_NAME) return caches.delete(key);
        })
      );
    })
  );
  self.clients.claim();
});

self.addEventListener('fetch', (e) => {
  e.respondWith(
    caches.match(e.request).then((res) => {
      return res || fetch(e.request);
    })
  );
});