import React, { useState } from 'react';
import { useAuth } from '../context/AuthContext';
import { useNavigate } from 'react-router-dom';
import { Building2, Mail, Lock, Eye, EyeOff } from 'lucide-react';

const Login = () => {
    const [email, setEmail] = useState('');
    const [password, setPassword] = useState('');
    const [showPassword, setShowPassword] = useState(false);
    const [isLoading, setIsLoading] = useState(false);
    const [error, setError] = useState('');

    const navigate = useNavigate();
    const { login, loginWithO365 } = useAuth();

    const handleSubmit = async (e) => {
        e.preventDefault();
        setIsLoading(true);
        setError('');

        const success = await login(email, password);
        if (success) {
            navigate('/dashboard');
        } else {
            setError('Identifiants incorrects. Veuillez réessayer.');
        }

        setIsLoading(false);
    };

    return (
        <div className="min-h-screen bg-gradient-to-br from-blue-50 to-indigo-100 flex flex-col lg:flex-row">
            {/* Image côté gauche */}
            <div className="h-32 lg:h-auto lg:flex lg:w-1/2 bg-cover bg-center"
                style={{ backgroundImage: "url('/assets/ImageEnsup.png')" }}>
                <div className="w-full bg-black bg-opacity-40 flex items-center justify-center p-4">
                </div>
            </div>

            {/* Formulaire côté droit */}
            <div className="flex-1 lg:w-1/2 flex items-center justify-center p-4 lg:p-8">
                <div className="max-w-md w-full">
                    <div className="bg-white rounded-2xl shadow-xl p-6 lg:p-8">
                        {/* Logo */}
                        <div className="text-center mb-6 lg:mb-8">
                            <div className="w-12 h-12 lg:w-16 lg:h-16 bg-blue-600 rounded-2xl flex items-center justify-center mx-auto mb-4">
                                <Building2 className="w-6 h-6 lg:w-8 lg:h-8 text-white" />
                            </div>
                            <h1 className="text-xl lg:text-2xl font-bold text-gray-900">GTA</h1>
                            <p className="text-sm lg:text-base text-gray-600">Gestion de congés</p>
                        </div>

                        {/* Form */}
                        <form onSubmit={handleSubmit} className="space-y-4 lg:space-y-6">
                            <div>
                                <label htmlFor="email" className="block text-sm lg:text-base font-medium text-gray-700 mb-2">
                                    Email
                                </label>
                                <div className="relative">
                                    <Mail className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400 w-4 h-4 lg:w-5 lg:h-5" />
                                    <input
                                        id="email"
                                        type="email"
                                        value={email}
                                        onChange={(e) => setEmail(e.target.value)}
                                        className="w-full pl-9 lg:pl-10 pr-4 py-2 lg:py-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-transparent text-sm lg:text-base"
                                        placeholder="votre.email@entreprise.com"
                                        required
                                    />
                                </div>
                            </div>

                            <div>
                                <label htmlFor="password" className="block text-sm lg:text-base font-medium text-gray-700 mb-2">
                                    Mot de passe
                                </label>
                                <div className="relative">
                                    <Lock className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400 w-4 h-4 lg:w-5 lg:h-5" />
                                    <input
                                        id="password"
                                        type={showPassword ? "text" : "password"}
                                        value={password}
                                        onChange={(e) => setPassword(e.target.value)}
                                        className="w-full pl-9 lg:pl-10 pr-10 lg:pr-12 py-2 lg:py-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-transparent text-sm lg:text-base"
                                        placeholder="••••••••"
                                        required
                                    />
                                    <button
                                        type="button"
                                        onClick={() => setShowPassword(!showPassword)}
                                        className="absolute right-3 top-1/2 -translate-y-1/2 text-gray-500 hover:text-gray-900"
                                        title={showPassword ? "Masquer le mot de passe" : "Afficher le mot de passe"}
                                    >
                                        {showPassword ? <EyeOff className="w-5 h-5" /> : <Eye className="w-5 h-5" />}
                                    </button>
                                </div>
                            </div>

                            <div className="mt-6 text-center">
                                <button
                                    onClick={async () => {
                                        const success = await loginWithO365();
                                        if (success) {
                                            navigate('/dashboard');
                                        } else {
                                            setError("Erreur lors de la connexion Office 365");
                                        }
                                    }}
                                    type="button"
                                    className="w-full bg-gray-700 text-white py-3 rounded-lg font-medium hover:bg-green-700 transition-colors"
                                >
                                    Se connecter avec Office 365
                                </button>
                            </div>

                            {error && (
                                <div className="p-2 lg:p-3 bg-red-50 border border-red-200 rounded-lg">
                                    <p className="text-red-600 text-xs lg:text-sm">{error}</p>
                                </div>
                            )}

                            <button
                                type="submit"
                                disabled={isLoading}
                                className="w-full bg-blue-600 text-white py-2 lg:py-3 px-4 rounded-lg font-medium hover:bg-blue-700 focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed transition-colors text-sm lg:text-base"
                            >
                                {isLoading ? 'Connexion...' : 'Se connecter'}
                            </button>
                        </form>
                    </div>
                </div>
            </div>
        </div>
    );
};

export default Login;