service-worker.js

const CACHE_NAME = 'pawmatch-v1';
const urlsToCache = [
    '/',
    '/manifest.json',
    '/icon-192.png',
    '/icon-512.png'
];

self.addEventListener('install', (event) => {
    event.waitUntil(
        Promise.all([
            caches.open(CACHE_NAME).then((cache) => {
                return cache.addAll(urlsToCache);
            }),
            self.skipWaiting()
        ])
    );
});

self.addEventListener('activate', (event) => {
    event.waitUntil(
        Promise.all([
            caches.keys().then((cacheNames) => {
                return Promise.all(
                    cacheNames
                        .filter((cacheName) => cacheName !== CACHE_NAME)
                        .map((cacheName) => caches.delete(cacheName))
                );
            }),
            self.clients.claim()
        ])
    );
});

self.addEventListener('fetch', (event) => {
    event.respondWith(
        caches.match(event.request).then((response) => {
            if (response) {
                return response;
            }
            return fetch(event.request);
        })
    );
});