// Simple service worker for PWA installability
const CACHE_NAME = 'zpark-ems-v1';

self.addEventListener('install', (event) => {
  self.skipWaiting();
});

self.addEventListener('activate', (event) => {
  event.waitUntil(clients.claim());
});

self.addEventListener('fetch', (event) => {
  // Network-first strategy for API calls, cache-first for static assets
  if (event.request.url.includes('/api/')) {
    event.respondWith(fetch(event.request));
  } else {
    event.respondWith(
      caches.match(event.request).then(response => response || fetch(event.request))
    );
  }
});