import { useState, useEffect } from 'react';

function useOnlineStatus() {
  const [isOnline, setIsOnline] = useState(navigator.onLine);

  useEffect(() => {
    const goOnline = () => setIsOnline(true);
    const goOffline = () => setIsOnline(false);

    window.addEventListener('online', goOnline);
    window.addEventListener('offline', goOffline);

    return () => {
      window.removeEventListener('online', goOnline);
      window.removeEventListener('offline', goOffline);
    };
  }, []);

  return isOnline;
}

function StatusBadge() {
  const isOnline = useOnlineStatus();
  return <span>{isOnline ? '🟢 Online' : '🔴 Offline'}</span>;
}

export default StatusBadge;