service-worker.js

self.addEventListener('install', (event) => {
    event.waitUntil(
        caches.open('youbike-cache-v1').then((cache) => {
            return cache.addAll([
                '/',
                '/YouBike/index.html',
                '/YouBike/main.js',
                '/YouBike/manifest.json',
            ]);
        }).then(() => self.skipWaiting()) // 加入立即跳過等待
    );
});

self.addEventListener('fetch', (event) => {
    event.respondWith(
        caches.match(event.request).then((response) => {
            if (response) return response;
            return fetch(event.request).catch((error) => {
                console.error('PWA fetch failed:', error);
                throw error;
            });
        })
    );
});

self.addEventListener('activate', (event) => {
    const cacheWhitelist = ['youbike-cache-v1'];
    event.waitUntil(
        caches.keys().then((cacheNames) => {
            return Promise.all(
                cacheNames.map((cacheName) => {
                    if (cacheWhitelist.indexOf(cacheName) === -1) {
                        return caches.delete(cacheName);
                    }
                })
            );
        }).then(() => self.clients.claim()) // 加入立即控制所有客戶端
    );
});