fn-registry agent
87 lines
2.9 KiB
JavaScript
87 lines
2.9 KiB
JavaScript
// Service Worker — generado automaticamente
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// Estrategia: cache-first para assets, network-first para API
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const CACHE_NAME = 'voice-guide-v1';
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const PRECACHE_URLS = [
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'/',
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'/index.html',
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'/manifest.json',
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];
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const NETWORK_FIRST_PATTERNS = [
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'/api/',
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];
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// ── install ──────────────────────────────────────────────────────────────────
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// Pre-cachea los assets estaticos esenciales al instalar el SW.
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self.addEventListener('install', (event) => {
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event.waitUntil(
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caches.open(CACHE_NAME).then((cache) => {
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return cache.addAll(PRECACHE_URLS);
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})
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);
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self.skipWaiting();
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});
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// ── activate ─────────────────────────────────────────────────────────────────
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// Limpia caches de versiones anteriores al activar la nueva version del SW.
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self.addEventListener('activate', (event) => {
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event.waitUntil(
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caches.keys().then((cacheNames) => {
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return Promise.all(
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cacheNames
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.filter((name) => name !== CACHE_NAME)
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.map((name) => caches.delete(name))
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);
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})
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);
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self.clients.claim();
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});
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// ── fetch ─────────────────────────────────────────────────────────────────────
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// Intercepta peticiones:
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// - URLs que coinciden con NETWORK_FIRST_PATTERNS → network-first con fallback a cache
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// - El resto → cache-first con fallback a network (y guarda en cache la respuesta)
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self.addEventListener('fetch', (event) => {
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const url = event.request.url;
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const isNetworkFirst = url.includes('/api/');
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if (isNetworkFirst) {
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// Network-first: intenta red, si falla usa cache
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event.respondWith(
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fetch(event.request)
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.then((response) => {
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if (response && response.status === 200) {
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const responseClone = response.clone();
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caches.open(CACHE_NAME).then((cache) => {
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cache.put(event.request, responseClone);
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});
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}
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return response;
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})
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.catch(() => caches.match(event.request))
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);
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} else {
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// Cache-first: sirve desde cache, si no existe va a red y guarda en cache
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event.respondWith(
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caches.match(event.request).then((cached) => {
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if (cached) {
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return cached;
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}
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return fetch(event.request).then((response) => {
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if (response && response.status === 200) {
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const responseClone = response.clone();
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caches.open(CACHE_NAME).then((cache) => {
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cache.put(event.request, responseClone);
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});
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}
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return response;
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});
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})
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);
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}
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});
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