const CACHE_NAME = 'v2';
const ASSETS = [
    '/',
    '/index.html',
    '/script.js',
    '/styles.css',
    '/manifest.json',
    '/icons/192.svg',
    '/icons/512.svg',
    '/vendor/lucio/graham-scan.mjs'
];

self.addEventListener('install', (e) => {
    e.waitUntil(
        caches.open(CACHE_NAME).then(cache => cache.addAll(ASSETS))
    );
    self.skipWaiting();
});

self.addEventListener('activate', (e) => {
    e.waitUntil(
        caches.keys().then(keys =>
            Promise.all(keys.filter(k => k !== CACHE_NAME).map(k => caches.delete(k)))
        )
    );
    self.clients.claim();
});

self.addEventListener('fetch', (e) => {
    e.respondWith(
        caches.match(e.request).then(response => response || fetch(e.request))
    );
});