portfolio/nextjs/components/ui/language-toggle.tsx

'use client';

import * as React from 'react';
import { Languages } from 'lucide-react';
import { Button } from '@/components/ui/button';
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from '@/components/ui/dropdown-menu';
import { usePathname, useRouter } from '@/i18n/routing';
import { useParams } from 'next/navigation';

const LANGUAGES = [
  { code: 'ko', name: '한국어', flag: '🇰🇷' },
  { code: 'en', name: 'English', flag: '🇺🇸' },
  { code: 'de', name: 'Deutsch', flag: '🇩🇪' },
];

export function LanguageToggle() {
  const router = useRouter();
  const pathname = usePathname();
  const params = useParams();
  const currentLocale = params.locale as string;

  const handleLanguageChange = (locale: string) => {
    router.replace(pathname, { locale: locale as any });
  };

  const currentLanguage = LANGUAGES.find(lang => lang.code === currentLocale) || LANGUAGES[0];

  return (
    <DropdownMenu>
      <DropdownMenuTrigger asChild>
        <Button variant="ghost" size="icon" className="ml-2">
          <Languages className="h-[1.2rem] w-[1.2rem]" />
          <span className="sr-only">Toggle language</span>
        </Button>
      </DropdownMenuTrigger>
      <DropdownMenuContent align="end">
        {LANGUAGES.map((language) => (
          <DropdownMenuItem
            key={language.code}
            onClick={() => handleLanguageChange(language.code)}
            className="cursor-pointer"
          >
            <span className="mr-2">{language.flag}</span>
            {language.name}
            {currentLanguage.code === language.code && (
              <span className="ml-2">✓</span>
            )}
          </DropdownMenuItem>
        ))}
      </DropdownMenuContent>
    </DropdownMenu>
  );
}