'use client';

import { useEffect, useState } from 'react';
import { AlertCircle, RefreshCw } from 'lucide-react';
import { Button } from '@/components/ui/button';

export function NetworkErrorBanner() {
  const [isOffline, setIsOffline] = useState(false);

  useEffect(() => {
    const handleOffline = () => setIsOffline(true);
    const handleOnline = () => setIsOffline(false);

    window.addEventListener('offline', handleOffline);
    window.addEventListener('online', handleOnline);

    setIsOffline(!navigator.onLine);

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

  if (!isOffline) return null;

  return (
    <div
      className="fixed top-0 left-0 right-0 z-50 flex items-center justify-center gap-3 bg-destructive px-4 py-2 text-destructive-foreground shadow-lg"
      role="alert"
      aria-live="assertive"
    >
      <AlertCircle className="h-4 w-4" aria-hidden="true" />
      <span className="text-sm font-medium">
        You&apos;re offline. Some features may not work.
      </span>
      <Button
        variant="ghost"
        size="sm"
        className="h-7 gap-1 px-2 text-xs"
        onClick={() => window.location.reload()}
      >
        <RefreshCw className="h-3 w-3" aria-hidden="true" />
        Retry
      </Button>
    </div>
  );
}