service-worker.js

const CACHE_NAME = 'dawnfallz-cache-v2';
const FILES_TO_CACHE = [
  '/index.html',
  '/styles.css',
  '/script.js',
  '/assets/img/favicon.png',
  '/assets/img/favicon-192x192.png',
  '/assets/img/favicon-512x512.png',
  '/assets/img/sunset.png',
  '/assets/svg/system.svg',
  '/assets/svg/light.svg',
  '/assets/svg/dark.svg',
  '/assets/svg/menu.svg',
  '/assets/svg/github.svg',
  '/assets/svg/x.svg',
  '/assets/svg/discord.svg'
];


self.addEventListener('install', (event) => {
  self.skipWaiting();

  event.waitUntil(
    caches.open(CACHE_NAME).then((cache) => {
      return cache.addAll(FILES_TO_CACHE);
    })
  );
});

self.addEventListener('activate', (event) => {
  event.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', (event) => {
  const request = event.request;

  if (request.mode === 'navigate') {
    event.respondWith(
      fetch(request).catch(() => caches.match('/index.html'))
    );
    return;
  }

  if (
    request.destination === 'script' ||
    request.destination === 'style'
  ) {
    event.respondWith(
      fetch(request)
        .then((response) => {
          const copy = response.clone();

          caches.open(CACHE_NAME).then((cache) => {
            cache.put(request, copy);
          });

          return response;
        })
        .catch(() => caches.match(request))
    );
    return;
  }

  event.respondWith(
    caches.match(request).then((cached) => {
      if (cached) return cached;

      return fetch(request)
        .then((response) => {
          const copy = response.clone();

          caches.open(CACHE_NAME).then((cache) => {
            cache.put(request, copy);
          });

          return response;
        })
        .catch(() => cached)
    })
  );
});