// Service Worker registration
export function registerServiceWorker() {
  if (typeof window !== 'undefined' && 'serviceWorker' in navigator) {
    // Register immediately, don't wait for load
    navigator.serviceWorker
      .register('/sw.js', {
        scope: '/',
      })
      .then((registration) => {
        console.log('Service Worker registered:', registration.scope)
        
        // Check for updates
        registration.addEventListener('updatefound', () => {
          const newWorker = registration.installing
          if (newWorker) {
            newWorker.addEventListener('statechange', () => {
              if (newWorker.state === 'installed' && navigator.serviceWorker.controller) {
                // New service worker available
                console.log('New service worker available')
              }
            })
          }
        })
      })
      .catch((error) => {
        console.error('Service Worker registration failed:', error)
      })

    // Listen for controller changes (when a new service worker takes over)
    navigator.serviceWorker.addEventListener('controllerchange', () => {
      console.log('Service Worker controller changed')
      // Optionally reload the page to use the new service worker
      // window.location.reload()
    })
  }
}