7cabfb10de
Damit lädt beim Swipen durch Monate erst nach ~10 Monaten in beide Richtungen erneut Daten nach. Vorher reichte der Cache nur ±2 Monate, sodass nach 2-3 Wischen ein Spinner kam. - CACHE_BUF 56 → 300 Tage (initial ±10 Monate) - PREFETCH_EXT 56 → 180 Tage (Verlängerung bei Edge ~6 Monate) - PREFETCH_EDGE 28 → 90 Tage (Trigger ~3 Monate vor Cache-Rand) Version v6 → v7.
87 lines
2.4 KiB
JavaScript
87 lines
2.4 KiB
JavaScript
// Calendarr Service Worker
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// Cache-first for static assets, network-first for /api/* (graceful offline)
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const CACHE_VERSION = 'calendarr-v7';
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const STATIC_ASSETS = [
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'/',
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'/index.html',
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'/manifest.json',
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'/static/css/app.css',
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'/static/favicon.svg',
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'/static/js/app.js',
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'/static/js/api.js',
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'/static/js/calendar.js',
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'/static/js/color-picker.js',
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'/static/js/date-picker.js',
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'/static/js/i18n.js',
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'/static/js/utils.js',
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'/static/js/version.js',
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'/static/js/views/agenda.js',
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'/static/js/views/month.js',
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'/static/js/views/quarter.js',
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'/static/js/views/week.js',
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'/icons/icon-192.png',
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'/icons/icon-512.png',
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'/icons/icon.svg',
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];
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self.addEventListener('install', event => {
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event.waitUntil(
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caches.open(CACHE_VERSION).then(cache =>
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// Use addAll with a fallback so a single missing file doesn't abort install
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Promise.all(
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STATIC_ASSETS.map(url =>
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cache.add(url).catch(err => console.warn('[SW] skip', url, err))
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)
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)
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).then(() => self.skipWaiting())
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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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caches.keys().then(keys =>
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Promise.all(keys.filter(k => k !== CACHE_VERSION).map(k => caches.delete(k)))
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).then(() => self.clients.claim())
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);
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});
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self.addEventListener('fetch', event => {
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const req = event.request;
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if (req.method !== 'GET') return;
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const url = new URL(req.url);
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// Network-first for API routes — fail silently if offline
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if (url.pathname.startsWith('/api/')) {
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event.respondWith(
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fetch(req).catch(() =>
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new Response(JSON.stringify({ offline: true }), {
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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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return;
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}
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// Cache-first for everything else (static)
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event.respondWith(
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caches.match(req).then(cached => {
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if (cached) return cached;
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return fetch(req).then(resp => {
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// Only cache successful, basic-origin responses
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if (resp && resp.status === 200 && resp.type === 'basic') {
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const clone = resp.clone();
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caches.open(CACHE_VERSION).then(c => c.put(req, clone)).catch(() => {});
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}
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return resp;
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}).catch(() => {
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// Offline fallback for navigation requests
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if (req.mode === 'navigate') return caches.match('/index.html');
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return new Response('', { status: 503 });
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});
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})
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);
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});
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