const CACHE_NAME = 'agromonev-v1';

// asset statis saja
const STATIC_ASSETS = [
    '/',
    '/offline',
];

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

// activate (hapus cache lama)
self.addEventListener('activate', event => {
    event.waitUntil(
        caches.keys().then(keys => {
            return Promise.all(
                keys.map(key => {
                    if (key !== CACHE_NAME) {
                        return caches.delete(key);
                    }
                })
            );
        })
    );
    self.clients.claim();
});

self.addEventListener('fetch', event => {
    const request = event.request;

    if (!request.url.startsWith('http')) return;
    if (request.method !== 'GET') return;

    const url = new URL(request.url);

    // ❗ SKIP halaman auth & dashboard
    if (
        url.pathname.startsWith('/login') ||
        url.pathname.startsWith('/logout') ||
        url.pathname.startsWith('/register') ||
        url.pathname.startsWith('/dashboard') ||
        url.pathname.startsWith('/admin')
    ) {
        event.respondWith(fetch(request));
        return;
    }

    // ❗ SKIP API
    if (url.pathname.startsWith('/api')) {
        event.respondWith(fetch(request));
        return;
    }

    // 🔹 HTML → network first
    if (request.headers.get('accept')?.includes('text/html')) {
        event.respondWith(
            fetch(request)
                .catch(() => caches.match('/offline'))
        );
        return;
    }

    // 🔹 asset → cache
    event.respondWith(
        caches.match(request).then(res => res || fetch(request))
    );
});