const CACHE_NAME = "msv-moos-webcam-app-v1";
const URLS_TO_CACHE = [
  "./",
  "./index.html",
  "./css/custom.css",
  "./css/w3.css",
  "./js/webcam.js",
  "./manifest.json",
  "./data/icon.png",
  "./data/favicon.ico"
];

self.addEventListener("install", (event) => {
  event.waitUntil(
    caches.open(CACHE_NAME).then((cache) => cache.addAll(URLS_TO_CACHE))
  );
});

self.addEventListener("fetch", (event) => {
  event.respondWith(
    caches.match(event.request).then((response) => {
      return response || fetch(event.request);
    })
  );
});

self.addEventListener("activate", (event) => {
  event.waitUntil(
    caches.keys().then((cacheNames) =>
      Promise.all(
        cacheNames.map((cache) => {
          if (cache !== CACHE_NAME) {
            return caches.delete(cache);
          }
        })
      )
    )
  );
});