if ('serviceWorker' in navigator) { window.addEventListener('load', function() { navigator.serviceWorker.register('/sw.js') .then(function(registration) { console.log('SW registered: ', registration); // Check for updates registration.addEventListener('updatefound', () => { const newWorker = registration.installing; newWorker.addEventListener('statechange', () => { if (newWorker.state === 'installed' && navigator.serviceWorker.controller) { // New content available, show update notification if (confirm('New version available! Reload to update?')) { window.location.reload(); } } }); }); }) .catch(function(registrationError) { console.log('SW registration failed: ', registrationError); }); }); } // PWA Install prompt let deferredPrompt; window.addEventListener('beforeinstallprompt', (e) => { e.preventDefault(); deferredPrompt = e; // Show install button after 10 seconds setTimeout(() => { if (deferredPrompt && !window.matchMedia('(display-mode: standalone)').matches) { const installBanner = document.createElement('div'); installBanner.style.cssText = ` position: fixed; bottom: 20px; right: 20px; background: #2563eb; color: white; padding: 16px; border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.15); z-index: 1000; font-family: system-ui, sans-serif; font-size: 14px; max-width: 300px; cursor: pointer; `; installBanner.innerHTML = `

📱

Install App

Add to home screen for quick access

`; installBanner.onclick = () => { if (deferredPrompt) { deferredPrompt.prompt(); deferredPrompt.userChoice.then(() => { deferredPrompt = null; installBanner.remove(); }); } }; installBanner.querySelector('button').onclick = (e) => { e.stopPropagation(); installBanner.remove(); }; document.body.appendChild(installBanner); } }, 10000); });