'use strict';

const staticCacheName = 'v1.0.0';

const filesToCache = [
    '/app/index.html',
    '/app/js/settingsHandler.js',
    '/app/js/animeHandler.js',
    '/app/js/playerHandler.js',
    '/app/js/torrentHandler.js',
    '/app/js/rangeParser.js',
    '/app/js/util.js',
    '/app/css/misc.css',
    '/app/css/player.css',
    '/app/logo.png',
    'https://cdn.jsdelivr.net/npm/matroska-subtitles@3.0.1/dist/matroska-subtitles.min.js',
    'https://cdn.jsdelivr.net/npm/halfmoon@1.1.0/css/halfmoon-variables.min.css',
    'https://cdn.jsdelivr.net/gh/halfmoonui/halfmoon@1.1.0/js/halfmoon.min.js',
    'https://cdn.jsdelivr.net/npm/webtorrent@latest/webtorrent.min.js',
    'https://fonts.googleapis.com/icon?family=Material+Icons'
];

self.addEventListener('install', event => {
    event.waitUntil(
        caches.open(staticCacheName)
            .then(cache => {
                return cache.addAll(filesToCache);
            })
    );
    self.skipWaiting();
});

self.addEventListener('activate', event => {

    const cacheWhitelist = [staticCacheName];

    event.waitUntil(
        caches.keys().then(cacheNames => {
            return Promise.all(
                cacheNames.map(cacheName => {
                    if (cacheWhitelist.indexOf(cacheName) === -1) {
                        return caches.delete(cacheName);
                    }
                })
            );
        })
    );
    return self.clients.claim();
});

// self.addEventListener('fetch', event => {
//   event.respondWith(
//     caches.match(event.request)
//       .then(response => {
//         if (response) {
//           return response;
//         }
//         return fetch(event.request)
//           .then(response => {
//             if (response.status === 404) {
//               return;
//             }
//             return response;
//           });
//       }).catch(error => {
//         return caches.match('index.html');
//       })
//   );
// });