// Service Worker für iPhone Notifications
const CACHE_NAME = 'ninjacross-v1';
const urlsToCache = [
    '/',
    '/index.html',
    '/css/leaderboard.css',
    '/js/leaderboard.js',
    '/pictures/favicon.ico'
];

// Install event
self.addEventListener('install', function(event) {
    event.waitUntil(
        caches.open(CACHE_NAME)
            .then(function(cache) {
                return cache.addAll(urlsToCache);
            })
    );
});

// Fetch event
self.addEventListener('fetch', function(event) {
    event.respondWith(
        caches.match(event.request)
            .then(function(response) {
                // Return cached version or fetch from network
                return response || fetch(event.request);
            }
        )
    );
});

// Push event (für iPhone Notifications)
self.addEventListener('push', function(event) {
    console.log('Push received:', event);
    
    const options = {
        body: 'Du hast eine neue Notification!',
        icon: '/pictures/icon-192.png',
        badge: '/pictures/icon-192.png',
        vibrate: [100, 50, 100],
        data: {
            dateOfArrival: Date.now(),
            primaryKey: 1
        },
        actions: [
            {
                action: 'explore',
                title: 'Dashboard öffnen',
                icon: '/pictures/icon-192.png'
            },
            {
                action: 'close',
                title: 'Schließen',
                icon: '/pictures/icon-192.png'
            }
        ]
    };
    
    if (event.data) {
        const data = event.data.json();
        options.body = data.body || options.body;
        options.title = data.title || 'Ninja Cross';
    }
    
    event.waitUntil(
        self.registration.showNotification('Ninja Cross', options)
    );
});

// Notification click event
self.addEventListener('notificationclick', function(event) {
    console.log('Notification clicked:', event);
    
    event.notification.close();
    
    if (event.action === 'explore') {
        event.waitUntil(
            clients.openWindow('/dashboard.html')
        );
    }
});

// Background sync (für offline functionality)
self.addEventListener('sync', function(event) {
    if (event.tag === 'background-sync') {
        event.waitUntil(doBackgroundSync());
    }
});

async function doBackgroundSync() {
    // Sync data when back online
    console.log('Background sync triggered');
}