// Simple service worker for PWA
const CACHE_NAME = 'zhuiguang-v1';

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

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

self.addEventListener('fetch', (event) => {
  // Network-first strategy for API routes
  // Cache-first for static assets
  const url = new URL(event.request.url);
  
  if (url.pathname.startsWith('/_next/') || url.pathname.includes('/fonts/') || url.pathname.includes('/logos/')) {
    // Cache static assets
    event.respondWith(
      caches.match(event.request).then((cached) => {
        const fetchPromise = fetch(event.request).then((response) => {
          if (response.ok) {
            const clone = response.clone();
            caches.open(CACHE_NAME).then((cache) => cache.put(event.request, clone));
          }
          return response;
        });
        return cached || fetchPromise;
      })
    );
  }
  // All other requests: network-only (don't cache dynamic content)
});