'use client';

import { useState, useRef, useEffect } from 'react';
import { ChevronDownIcon, GlobeIcon } from 'lucide-react';
import { useRouter, usePathname } from 'next/navigation';

interface Language {
    code: string;
    name: string;
    flag: string;
}

interface LanguageSwitcherProps {
    currentLang: string;
    onLanguageChange: (lang: string) => void;
}

export default function LanguageSwitcher({ currentLang, onLanguageChange }: LanguageSwitcherProps) {
    const [isOpen, setIsOpen] = useState(false);
    const dropdownRef = useRef<HTMLDivElement>(null);
    const router = useRouter();
    const pathname = usePathname();

    const languages: Language[] = [
        { code: 'zh-CN', name: '简体中文', flag: '🇨🇳' },
        { code: 'zh-TW', name: '繁體中文', flag: '🇹🇼' },
        { code: 'en', name: 'English', flag: '🇺🇸' },
        { code: 'ko', name: '한국어', flag: '🇰🇷' },
        { code: 'ja', name: '日本語', flag: '🇯🇵' },
    ];

    const currentLanguage = languages.find((lang) => lang.code === currentLang) || languages[0];

    useEffect(() => {
        const handleClickOutside = (event: MouseEvent) => {
            if (dropdownRef.current && !dropdownRef.current.contains(event.target as Node)) {
                setIsOpen(false);
            }
        };

        document.addEventListener('mousedown', handleClickOutside);
        return () => document.removeEventListener('mousedown', handleClickOutside);
    }, []);

    const handleLanguageSelect = (langCode: string) => {
        // Extract the current path without the locale
        const pathWithoutLocale = pathname.replace(/^\/[a-z]{2}(-[A-Z]{2})?/, '') || '/';

        // Navigate to the new locale path
        router.push(`/${langCode}${pathWithoutLocale}`);

        // Call the callback if provided
        if (onLanguageChange) {
            onLanguageChange(langCode);
        }

        setIsOpen(false);
    };

    return (
        <div className="relative" ref={dropdownRef} data-oid="ogskmmp">
            {/* Trigger Button */}
            <button
                onClick={() => setIsOpen(!isOpen)}
                className="flex items-center space-x-2 px-4 py-2 bg-gray-800/80 backdrop-blur-sm border border-gray-700/50 rounded-xl hover:border-purple-500/50 hover:bg-gray-700/80 transition-all duration-300 group"
                data-oid="7xd90mg"
            >
                <GlobeIcon
                    className="w-4 h-4 text-gray-400 group-hover:text-purple-400 transition-colors duration-300"
                    data-oid="s1uio5o"
                />

                <span className="text-lg" data-oid="vmlb5gl">
                    {currentLanguage.flag}
                </span>
                <span
                    className="text-sm font-medium text-gray-300 group-hover:text-white transition-colors duration-300"
                    data-oid="aebk8wz"
                >
                    {currentLanguage.name}
                </span>
                <ChevronDownIcon
                    className={`w-4 h-4 text-gray-400 group-hover:text-purple-400 transition-all duration-300 ${
                        isOpen ? 'rotate-180' : ''
                    }`}
                    data-oid="0ps4vmh"
                />
            </button>

            {/* Dropdown Menu */}
            {isOpen && (
                <div
                    className="absolute top-full right-0 mt-2 w-48 bg-gray-800/95 backdrop-blur-md border border-gray-700/50 rounded-xl shadow-2xl shadow-black/50 overflow-hidden z-50 animate-in fade-in-0 zoom-in-95 duration-200"
                    data-oid="9-sz9sr"
                >
                    <div className="py-2" data-oid="db.:hro">
                        {languages.map((language) => (
                            <button
                                key={language.code}
                                onClick={() => handleLanguageSelect(language.code)}
                                className={`w-full flex items-center space-x-3 px-4 py-3 text-left hover:bg-gray-700/50 transition-all duration-200 ${
                                    currentLang === language.code
                                        ? 'bg-purple-900/30 border-r-2 border-purple-500'
                                        : ''
                                }`}
                                data-oid="pbhzkaa"
                            >
                                <span className="text-xl" data-oid="1oafez1">
                                    {language.flag}
                                </span>
                                <span
                                    className={`text-sm font-medium transition-colors duration-200 ${
                                        currentLang === language.code
                                            ? 'text-purple-300'
                                            : 'text-gray-300 hover:text-white'
                                    }`}
                                    data-oid="6qa2r1m"
                                >
                                    {language.name}
                                </span>
                                {currentLang === language.code && (
                                    <div
                                        className="ml-auto w-2 h-2 bg-purple-500 rounded-full animate-pulse"
                                        data-oid="em6bbg."
                                    ></div>
                                )}
                            </button>
                        ))}
                    </div>

                    {/* Decorative gradient border */}
                    <div
                        className="absolute inset-0 rounded-xl bg-gradient-to-r from-purple-500/20 via-pink-500/20 to-blue-500/20 pointer-events-none opacity-50"
                        data-oid="cg-73k5"
                    ></div>
                </div>
            )}
        </div>
    );
}