alexei.dolgolyov
5b4813368b
Automation editor: - IconSelect grid for condition logic (OR/AND) with descriptions KC target editor: - IconSelect for color mode (average/median/dominant) with SVG previews - EntitySelect palette for picture source, pattern template, brightness source Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
95 lines
3.2 KiB
JavaScript
95 lines
3.2 KiB
JavaScript
/**
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* Service Worker for LED Grab PWA.
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*
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* Strategy:
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* - Static assets (/static/): stale-while-revalidate
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* - API / config requests: network-only (device control must be live)
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* - Navigation: network-first with offline fallback
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*/
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const CACHE_NAME = 'ledgrab-v23';
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// Only pre-cache static assets (no auth required).
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// Do NOT pre-cache '/' — it requires API key auth and would cache an error page.
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const PRECACHE_URLS = [
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'/static/css/base.css',
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'/static/css/layout.css',
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'/static/css/components.css',
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'/static/css/cards.css',
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'/static/css/modal.css',
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'/static/css/calibration.css',
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'/static/css/dashboard.css',
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'/static/css/streams.css',
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'/static/css/patterns.css',
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'/static/css/automations.css',
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'/static/css/tutorials.css',
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'/static/css/mobile.css',
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'/static/icons/icon-192.png',
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'/static/icons/icon-512.png',
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];
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// Install: pre-cache core shell
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self.addEventListener('install', (event) => {
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event.waitUntil(
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caches.open(CACHE_NAME)
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.then((cache) => cache.addAll(PRECACHE_URLS))
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.then(() => self.skipWaiting())
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);
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});
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// Activate: clean old caches
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self.addEventListener('activate', (event) => {
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event.waitUntil(
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caches.keys()
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.then((keys) => Promise.all(
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keys.filter((k) => k !== CACHE_NAME).map((k) => caches.delete(k))
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))
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.then(() => self.clients.claim())
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);
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});
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// Fetch handler
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self.addEventListener('fetch', (event) => {
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const url = new URL(event.request.url);
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// API and config: always network (device control must be live)
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if (url.pathname.startsWith('/api/') || url.pathname.startsWith('/config/')) {
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return; // fall through to default network fetch
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}
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// Static assets: stale-while-revalidate
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if (url.pathname.startsWith('/static/')) {
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event.respondWith(
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caches.open(CACHE_NAME).then((cache) =>
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cache.match(event.request).then((cached) => {
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const fetchPromise = fetch(event.request).then((response) => {
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if (response.ok) {
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cache.put(event.request, response.clone());
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}
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return response;
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}).catch(() => cached);
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return cached || fetchPromise;
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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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// Navigation: network-only (page requires auth, no useful offline fallback)
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if (event.request.mode === 'navigate') {
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event.respondWith(
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fetch(event.request).catch(() =>
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new Response(
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'<html><body style="font-family:system-ui;text-align:center;padding:60px 20px;background:#1a1a1a;color:#ccc">' +
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'<h2>LED Grab</h2><p>Cannot reach the server. Check that it is running and you are on the same network.</p>' +
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'<button onclick="location.reload()" style="margin-top:20px;padding:10px 24px;border-radius:8px;border:none;background:#4CAF50;color:#fff;font-size:1rem;cursor:pointer">Retry</button>' +
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'</body></html>',
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{ status: 503, headers: { 'Content-Type': 'text/html' } }
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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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});
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