NoteDiscovery/frontend/sw.js

68 lines
1.8 KiB
JavaScript

// NoteDiscovery Service Worker
// Minimal service worker for PWA install support
// Cache version - automatically uses app version from VERSION file
// Cache is invalidated when app version changes (e.g., 0.10.4 -> 0.10.5)
// This forces users to download fresh files when you release a new version.
const CACHE_NAME = 'notediscovery-__APP_VERSION__';
// Assets to cache for faster repeat visits
const PRECACHE_ASSETS = [
'/static/logo.svg',
'/static/favicon.svg',
'/static/app.js'
];
// Install event - cache essential assets
self.addEventListener('install', (event) => {
event.waitUntil(
caches.open(CACHE_NAME)
.then((cache) => cache.addAll(PRECACHE_ASSETS))
.then(() => self.skipWaiting())
);
});
// Activate event - clean up old caches
self.addEventListener('activate', (event) => {
event.waitUntil(
caches.keys().then((cacheNames) => {
return Promise.all(
cacheNames
.filter((name) => name !== CACHE_NAME)
.map((name) => caches.delete(name))
);
}).then(() => self.clients.claim())
);
});
// Fetch event - network first, fallback to cache for assets
self.addEventListener('fetch', (event) => {
const url = new URL(event.request.url);
// Only handle same-origin requests
if (url.origin !== location.origin) {
return;
}
// For API calls, always go to network
if (url.pathname.startsWith('/api/')) {
return;
}
// For static assets, try cache first then network
if (url.pathname.startsWith('/static/')) {
event.respondWith(
caches.match(event.request)
.then((cached) => cached || fetch(event.request))
);
return;
}
// For everything else, network first
event.respondWith(
fetch(event.request)
.catch(() => caches.match(event.request))
);
});