// Check if service workers are supported
if ('serviceWorker' in navigator) {
  window.addEventListener('load', () => {
    navigator.serviceWorker.register('/service-worker.js')
      .then(registration => {
        console.log('Service Worker registered with scope:', registration.scope);
        
        // Check for updates to the Service Worker
        registration.addEventListener('updatefound', () => {
          const newWorker = registration.installing;
          console.log('Service Worker update found!');
          
          newWorker.addEventListener('statechange', () => {
            if (newWorker.state === 'installed') {
              if (navigator.serviceWorker.controller) {
                // New content is available, notify user
                console.log('New version available! Reload to update.');
                
                // Optionally, display a notification to the user
                if (window.confirm('A new version of this app is available. Reload to update?')) {
                  window.location.reload();
                }
              } else {
                // First time install
                console.log('App is now available offline!');
              }
            }
          });
        });
      })
      .catch(error => {
        console.error('Service Worker registration failed:', error);
      });
  });
}