mirror of
https://github.com/olehomelchenko/astrolabe-nvc.git
synced 2025-12-21 21:22:23 +00:00
84 lines
2.6 KiB
JavaScript
84 lines
2.6 KiB
JavaScript
// IMPORTANT: Update this version with each release (must match APP_VERSION in config.js)
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const CACHE_NAME = 'astrolabe-v0.3.0';
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const URLS_TO_CACHE = [
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'/',
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'/index.html',
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'/src/styles.css',
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'/src/favicon.svg',
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'/src/js/config.js',
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'/src/js/snippet-manager.js',
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'/src/js/dataset-manager.js',
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'/src/js/chart-builder.js',
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'/src/js/panel-manager.js',
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'/src/js/editor.js',
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'/src/js/user-settings.js',
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'/src/js/generic-storage-ui.js',
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'/src/js/app.js'
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];
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// CDN URLs to cache
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const CDN_URLS = [
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'https://cdnjs.cloudflare.com/ajax/libs/monaco-editor/0.47.0/min/vs/loader.js',
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'https://unpkg.com/vega@5/build/vega.min.js',
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'https://unpkg.com/vega-lite@5/build/vega-lite.min.js',
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'https://unpkg.com/vega-embed@6/build/vega-embed.min.js',
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'https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&display=swap'
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];
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// Install event - cache all static assets
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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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// Cache local files
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const localCachePromise = cache.addAll(URLS_TO_CACHE);
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// Cache CDN files - they'll be cached during runtime via fetch event
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// This avoids CORS issues during install phase
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return localCachePromise;
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})
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);
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// Force the waiting service worker to become active
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self.skipWaiting();
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});
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// Activate event - clean up old 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.map((cacheName) => {
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if (cacheName !== CACHE_NAME) {
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return caches.delete(cacheName);
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}
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})
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);
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})
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);
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// Take control of all pages immediately
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return self.clients.claim();
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});
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// Fetch event - serve from cache, fallback to network
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self.addEventListener('fetch', (event) => {
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event.respondWith(
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caches.match(event.request).then((response) => {
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// Return cached version or fetch from network
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return response || fetch(event.request).then((fetchResponse) => {
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// Cache successful responses for future use
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if (fetchResponse && fetchResponse.status === 200) {
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const responseToCache = fetchResponse.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 fetchResponse;
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});
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}).catch(() => {
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// Offline fallback - return cached index for navigation requests
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if (event.request.mode === 'navigate') {
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return caches.match('/index.html');
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}
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})
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);
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});
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