sw.js

/**
 * Service worker — GENERATED by tools/build-sw.mjs. Do not edit by hand.
 *
 * Ritual makes no network requests once it has loaded, so it is a natural fit
 * for working offline: precache everything, then serve from the cache.
 *
 * The one thing to get right is staleness. `index.html` is fetched
 * network-first, so a deploy is picked up on the next online load and a stale
 * cache can always correct itself. Everything else is cache-first, keyed to a
 * version derived from the contents of every file — so a changed asset means a
 * new cache name, and the old one is deleted on activate.
 */

const VERSION = '3a80b76aa37e';
const CACHE = `ritual-${VERSION}`;

const PRECACHE = [
  "./apple-touch-icon.png",
  "./assets/fonts/architectsdaughter-YbvTYlg4w.woff2",
  "./assets/fonts/architectsdaughter-bvTYdg4zg.woff2",
  "./assets/fonts/caveat-2Q7aDYYmg8.woff2",
  "./assets/fonts/caveat-fYB2Q7ZjYY.woff2",
  "./assets/fonts/cedarvillecursive-ABnuIrpw.woff2",
  "./assets/fonts/cormorantgaramond-WMhyjYqXtK.woff2",
  "./assets/fonts/cormorantgaramond-yjYp3tKgS4.woff2",
  "./assets/fonts/dancingscript-ViszLgiuE.woff2",
  "./assets/fonts/dancingscript-szLuiuEViw.woff2",
  "./assets/fonts/ebgaramond-5GR7SDktYw.woff2",
  "./assets/fonts/ebgaramond-7e8QL99U6g.woff2",
  "./assets/fonts/ebgaramond-F1K5GR1SDk.woff2",
  "./assets/fonts/ebgaramond-QL9zU6ingQ.woff2",
  "./assets/fonts/gloriahallelujah-MIS71zO0vg.woff2",
  "./assets/fonts/gloriahallelujah-bWMIS11zM.woff2",
  "./assets/fonts/homemadeapple-ZJob0x6XHg.woff2",
  "./assets/fonts/justanotherhand-Ofr2DGiVSw.woff2",
  "./assets/fonts/justanotherhand-yOpOfr4DGg.woff2",
  "./assets/fonts/kalam-GjLCkiQ4tg.woff2",
  "./assets/fonts/kalam-MthfOCfzsw.woff2",
  "./assets/fonts/kalam-kDdMthROCc.woff2",
  "./assets/fonts/kalam-tD6GjLMkiQ.woff2",
  "./assets/fonts/labelleaurore-eI4Eu2EBVk.woff2",
  "./assets/fonts/labelleaurore-ovHeI4HO2E.woff2",
  "./assets/fonts/mrssaintdelafield-62QKcnLub.woff2",
  "./assets/fonts/mrssaintdelafield-WC62QKknLw.woff2",
  "./assets/fonts/petitformalscript-5qkHDgPrgZ.woff2",
  "./assets/fonts/petitformalscript-RP5qkH7gPg.woff2",
  "./assets/fonts/reeniebeanie-uvWxXPq1qw.woff2",
  "./assets/fonts/rougescript-Ep3S4Ua.woff2",
  "./assets/fonts/shadowsintolighttwo-NmpALHGYNn.woff2",
  "./assets/fonts/shadowsintolighttwo-syNmpAzHGQ.woff2",
  "./assets/textures/crease-heavy.jpg",
  "./assets/textures/crease.jpg",
  "./assets/textures/paper-creased.jpg",
  "./assets/textures/parchment.jpg",
  "./assets/textures/wood-desk.jpg",
  "./assets/textures/wood-frame.jpg",
  "./favicon.svg",
  "./icon-192.png",
  "./icon-512.png",
  "./index.html",
  "./manifest.webmanifest",
  "./src/audio/core.js",
  "./src/audio/index.js",
  "./src/audio/music.js",
  "./src/audio/weather.js",
  "./src/audio/writing.js",
  "./src/core/assets.js",
  "./src/core/noise.js",
  "./src/core/util.js",
  "./src/intensity.js",
  "./src/main.js",
  "./src/scene/atmos.js",
  "./src/scene/burn.js",
  "./src/scene/candle.js",
  "./src/scene/glass.js",
  "./src/scene/lighting.js",
  "./src/scene/props.js",
  "./src/scene/sky.js",
  "./src/scene/textures.js",
  "./src/storm-events.js",
  "./src/ui/debug.js",
  "./src/ui/desk.js",
  "./src/ui/haptics.js",
  "./src/ui/panels.js",
  "./src/ui/seal-art.js",
  "./src/ui/seal.js",
  "./src/write/hands.js",
  "./src/write/paper.js",
  "./styles/base.css",
  "./styles/fonts.css",
  "./styles/paper.css",
  "./styles/scene.css",
  "./styles/ui.css"
];

self.addEventListener('install', (event) => {
  event.waitUntil(
    caches.open(CACHE)
      // Individually, so one failed asset cannot fail the whole install.
      .then((cache) => Promise.all(
        PRECACHE.map((url) => cache.add(url).catch(() => {}))
      ))
      .then(() => self.skipWaiting())
  );
});

self.addEventListener('activate', (event) => {
  event.waitUntil(
    caches.keys()
      .then((keys) => Promise.all(
        keys.filter((k) => k.startsWith('ritual-') && k !== CACHE)
            .map((k) => caches.delete(k))
      ))
      .then(() => self.clients.claim())
  );
});

self.addEventListener('fetch', (event) => {
  const req = event.request;
  if (req.method !== 'GET') return;

  const url = new URL(req.url);
  if (url.origin !== self.location.origin) return;

  // The document is network-first: it is the only file that can tell the
  // browser about a new version, so it must never be pinned.
  const isDocument = req.mode === 'navigate' ||
    (req.headers.get('accept') || '').includes('text/html');

  if (isDocument) {
    event.respondWith(
      fetch(req)
        .then((res) => {
          const copy = res.clone();
          caches.open(CACHE).then((c) => c.put(req, copy)).catch(() => {});
          return res;
        })
        .catch(() => caches.match(req).then((r) => r || caches.match('./index.html')))
    );
    return;
  }

  // Everything else is content the version already accounts for.
  event.respondWith(
    caches.match(req).then((hit) => hit || fetch(req).then((res) => {
      if (res && res.ok && res.type === 'basic') {
        const copy = res.clone();
        caches.open(CACHE).then((c) => c.put(req, copy)).catch(() => {});
      }
      return res;
    }))
  );
});