108 lines
3.4 KiB
JavaScript
108 lines
3.4 KiB
JavaScript
const CACHE_NAME = "stripstream-cache-v1";
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const OFFLINE_PAGE = "/offline.html";
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const STATIC_ASSETS = [
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"/",
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"/offline.html",
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"/manifest.json",
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"/favicon.svg",
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"/images/icons/icon-192x192.png",
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"/images/icons/icon-512x512.png",
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];
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// Installation du service worker
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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(STATIC_ASSETS);
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})
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);
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self.skipWaiting();
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});
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// Activation et nettoyage des anciens caches
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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.filter((name) => name !== CACHE_NAME).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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// Stratégie de cache différente selon le type de requête
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self.addEventListener("fetch", (event) => {
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// Pour les requêtes API, on utilise "Network First" avec un timeout
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if (event.request.url.includes("/api/")) {
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event.respondWith(
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Promise.race([
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fetch(event.request.clone())
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.then((response) => {
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// Ne mettre en cache que les réponses réussies
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if (response.ok) {
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const responseToCache = response.clone();
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caches.open(CACHE_NAME).then((cache) => {
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cache.put(event.request, responseToCache);
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});
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}
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return response;
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})
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.catch(() => {
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// En cas d'erreur réseau, essayer le cache
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return caches.match(event.request).then((cachedResponse) => {
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if (cachedResponse) {
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return cachedResponse;
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}
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// Si pas de cache, renvoyer une erreur appropriée
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return new Response(JSON.stringify({ error: "Hors ligne" }), {
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status: 503,
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headers: { "Content-Type": "application/json" },
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});
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});
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}),
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// Timeout après 5 secondes
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new Promise((_, reject) => setTimeout(() => reject(new Error("Timeout")), 5000)).catch(
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() => {
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return caches.match(event.request).then((cachedResponse) => {
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if (cachedResponse) {
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return cachedResponse;
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}
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return new Response(JSON.stringify({ error: "Timeout" }), {
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status: 504,
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headers: { "Content-Type": "application/json" },
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});
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});
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}
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),
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])
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);
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} else {
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// Pour les autres ressources, on garde la stratégie "Cache First"
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event.respondWith(
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caches.match(event.request).then((cachedResponse) => {
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if (cachedResponse) {
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return cachedResponse;
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}
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return fetch(event.request)
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.then((response) => {
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// Mettre en cache la nouvelle réponse
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const responseToCache = response.clone();
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caches.open(CACHE_NAME).then((cache) => {
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cache.put(event.request, responseToCache);
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});
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return response;
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})
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.catch(() => {
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// Si la requête échoue et que c'est une page, renvoyer la page hors ligne
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if (event.request.mode === "navigate") {
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return caches.match(OFFLINE_PAGE);
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}
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return new Response("Hors ligne", { status: 503 });
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});
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})
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);
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}
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});
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