Martin Dvorak
3ea2cea100
Next.js 15 app that turns photos, PDFs, DOCX/PPTX and text into a swipeable feed of AI-generated activities (flashcards, multiple choice, true/false, fill-in-the-blank, matching, ordering, short answer) using the user's own Ollama models. Highlights: - All AI calls run in server route handlers; the browser never talks to Ollama. - Bring-your-own-key mode (default): the key lives only in the browser and is sent per-request; server, local-daemon and shared-key modes also supported. - Client-side document extraction (pdf.js, mammoth, jszip) with scanned-PDF page rendering for the vision model; notes stay in their original language. - ChatGPT-style shell: collapsible sidebar / mobile drawer, neutral token-based light + dark themes, folder organisation, PWA (manifest, SW, offline page). - Strict JSON validation with zod + auto-repair, rate limiting, and request guards (cross-origin, body-size, API-key sanitising). - setup.sh bootstraps deps, .env.local and a production build. Gitignore excludes .env*, the generated pdf.js worker and local scratch files.
97 lines
2.8 KiB
JavaScript
97 lines
2.8 KiB
JavaScript
/**
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* Freezmo service worker (production only).
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*
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* Strategy, deliberately conservative:
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* - API routes are never cached and never intercepted.
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* - Navigations: network first, falling back to the cached shell, then /offline.
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* - /_next/static + icons: stale-while-revalidate (fast, self-healing).
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* - Everything else: straight to the network.
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*
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* Bumping CACHE_VERSION is how a new deploy invalidates old assets.
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*/
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const CACHE_VERSION = "freezmo-v2";
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const SHELL_CACHE = `${CACHE_VERSION}-shell`;
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const ASSET_CACHE = `${CACHE_VERSION}-assets`;
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const SHELL_ASSETS = [
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"/",
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"/offline",
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"/manifest.webmanifest",
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"/icons/icon-192.png",
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"/icons/icon-512.png",
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"/icons/apple-touch-icon.png",
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];
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self.addEventListener("install", (event) => {
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event.waitUntil(
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(async () => {
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const cache = await caches.open(SHELL_CACHE);
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await Promise.allSettled(SHELL_ASSETS.map((url) => cache.add(new Request(url, { cache: "reload" }))));
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await self.skipWaiting();
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})(),
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);
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});
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self.addEventListener("activate", (event) => {
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event.waitUntil(
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(async () => {
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const names = await caches.keys();
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await Promise.all(
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names.filter((name) => !name.startsWith(CACHE_VERSION)).map((name) => caches.delete(name)),
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);
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await self.clients.claim();
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})(),
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);
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});
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function isCacheableAsset(url) {
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return (
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url.pathname.startsWith("/_next/static/") ||
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url.pathname.startsWith("/icons/") ||
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url.pathname === "/manifest.webmanifest" ||
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/\.(?:css|js|png|jpg|jpeg|svg|webp|woff2?)$/.test(url.pathname)
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);
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}
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self.addEventListener("fetch", (event) => {
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const request = event.request;
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if (request.method !== "GET") return;
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const url = new URL(request.url);
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if (url.origin !== self.location.origin) return;
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// Never touch the API: keys, notes and generated decks must always be live.
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if (url.pathname.startsWith("/api/")) return;
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if (request.mode === "navigate") {
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event.respondWith(
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(async () => {
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try {
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const response = await fetch(request);
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const cache = await caches.open(SHELL_CACHE);
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cache.put("/", response.clone()).catch(() => {});
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return response;
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} catch {
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const cache = await caches.open(SHELL_CACHE);
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return (await cache.match("/")) ?? (await cache.match("/offline")) ?? Response.error();
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}
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})(),
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);
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return;
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}
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if (isCacheableAsset(url)) {
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event.respondWith(
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(async () => {
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const cache = await caches.open(ASSET_CACHE);
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const cached = await cache.match(request);
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const network = fetch(request)
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.then((response) => {
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if (response.ok) cache.put(request, response.clone()).catch(() => {});
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return response;
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})
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.catch(() => cached);
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return cached ?? network;
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})(),
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);
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}
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});
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