import { useState } from 'react';
import axios from 'axios';
import { Lock, User } from 'lucide-react';
import { useTranslation } from 'react-i18next';
import LanguageSelector from '../components/LanguageSelector';

const API_URL = import.meta.env.VITE_API_URL || 'http://localhost:3000';

function Login({ setToken, setUserRole, setUsername }) {
    const { t } = useTranslation();
    const [formData, setFormData] = useState({ username: '', password: '' });
    const [error, setError] = useState('');

    const handleSubmit = async (e) => {
        e.preventDefault();
        try {
            const res = await axios.post(`${API_URL}/api/auth/login`, formData);
            localStorage.setItem('token', res.data.token);
            localStorage.setItem('role', res.data.role);
            localStorage.setItem('username', res.data.username);

            setToken(res.data.token);
            setUserRole(res.data.role);
            setUsername(res.data.username);
        } catch (err) {
            setError(err.response?.data?.error || 'Login failed');
        }
    };

    return (
        <div className="min-h-screen flex items-center justify-center bg-slate-950 relative">
            <div className="absolute top-4 right-4">
                <LanguageSelector />
            </div>
            <div className="bg-slate-900 p-8 rounded-2xl shadow-2xl w-96 border border-slate-800">
                <div className="text-center mb-8">
                    <h1 className="text-3xl font-bold bg-gradient-to-r from-blue-500 to-purple-500 bg-clip-text text-transparent">
                        {t('title')}
                    </h1>
                    <p className="text-slate-400 mt-2">{t('login_subtitle')}</p>
                </div>

                {error && (
                    <div className="bg-red-500/10 border border-red-500 text-red-500 p-3 rounded mb-4 text-center">
                        {error}
                    </div>
                )}

                <form onSubmit={handleSubmit} className="space-y-6">
                    <div>
                        <label className="block text-sm font-medium text-slate-400 mb-1">{t('username')}</label>
                        <div className="relative">
                            <User className="absolute left-3 top-3 text-slate-500" size={20} />
                            <input
                                className="w-full bg-slate-950 border border-slate-700 rounded-lg py-2.5 pl-10 text-white focus:ring-2 focus:ring-blue-500 outline-none"
                                placeholder="admin"
                                value={formData.username}
                                onChange={e => setFormData({ ...formData, username: e.target.value })}
                            />
                        </div>
                    </div>

                    <div>
                        <label className="block text-sm font-medium text-slate-400 mb-1">{t('password')}</label>
                        <div className="relative">
                            <Lock className="absolute left-3 top-3 text-slate-500" size={20} />
                            <input
                                type="password"
                                className="w-full bg-slate-950 border border-slate-700 rounded-lg py-2.5 pl-10 text-white focus:ring-2 focus:ring-blue-500 outline-none"
                                placeholder="••••••"
                                value={formData.password}
                                onChange={e => setFormData({ ...formData, password: e.target.value })}
                            />
                        </div>
                    </div>

                    <button className="w-full bg-gradient-to-r from-blue-600 to-purple-600 hover:from-blue-500 hover:to-purple-500 py-3 rounded-lg font-bold shadow-lg shadow-blue-500/20 transition-all">
                        {t('sign_in')}
                    </button>
                </form>
            </div>
        </div>
    );
}

export default Login;
