'use client';

import { useState } from 'react';
import Link from 'next/link';
import { useRouter } from 'next/navigation';
import { Eye, EyeOff, Mail, Lock } from 'lucide-react';
import { useAuthStore } from '@/lib/auth-store';
import toast from 'react-hot-toast';

export default function ConnexionPage() {
  const router = useRouter();
  const { login } = useAuthStore();
  const [email, setEmail] = useState('');
  const [password, setPassword] = useState('');
  const [showPassword, setShowPassword] = useState(false);
  const [loading, setLoading] = useState(false);

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    setLoading(true);

    try {
      await login(email, password);
      toast.success('Connexion réussie !');
      router.push('/dashboard');
    } catch (error: unknown) {
      const axiosError = error as import('axios').AxiosError<{ message?: string }>;
      const message = axiosError.response?.data?.message || 'Identifiants incorrects';
      toast.error(message);
    } finally {
      setLoading(false);
    }
  };

  return (
    <div className="min-h-screen flex items-center justify-center bg-linear-to-br from-candlelight-50 via-white to-malachite-50 dark:from-gray-950 dark:via-gray-900 dark:to-gray-950 px-4">
      <div className="w-full max-w-md">
        <div className="text-center mb-8">
          <Link href="/" className="inline-block">
            <h1 className="font-display text-4xl font-bold">
              <span className="text-malachite-600 dark:text-malachite-400">CESI</span>
              <span className="text-candlelight-500">ZEN</span>
            </h1>
          </Link>
          <p className="text-gray-500 dark:text-gray-400 mt-2">Connectez-vous à votre compte</p>
        </div>

        <div className="bg-white dark:bg-gray-900 rounded-2xl shadow-xl border border-gray-100 dark:border-gray-800 p-8">
          <form onSubmit={handleSubmit} className="space-y-5">
            <div>
              <label htmlFor="email" className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1.5">
                Adresse email
              </label>
              <div className="relative">
                <Mail className="absolute left-3 top-1/2 -translate-y-1/2 w-5 h-5 text-gray-400" />
                <input
                  id="email"
                  type="email"
                  value={email}
                  onChange={(e) => setEmail(e.target.value)}
                  required
                  className="w-full pl-11 pr-4 py-3 rounded-xl border border-gray-200 dark:border-gray-700 bg-gray-50 dark:bg-gray-800 text-gray-900 dark:text-white focus:ring-2 focus:ring-candlelight-500 focus:border-transparent outline-none transition-all"
                  placeholder="vous@exemple.fr"
                />
              </div>
            </div>

            <div>
              <label htmlFor="password" className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1.5">
                Mot de passe
              </label>
              <div className="relative">
                <Lock className="absolute left-3 top-1/2 -translate-y-1/2 w-5 h-5 text-gray-400" />
                <input
                  id="password"
                  type={showPassword ? 'text' : 'password'}
                  value={password}
                  onChange={(e) => setPassword(e.target.value)}
                  required
                  className="w-full pl-11 pr-12 py-3 rounded-xl border border-gray-200 dark:border-gray-700 bg-gray-50 dark:bg-gray-800 text-gray-900 dark:text-white focus:ring-2 focus:ring-candlelight-500 focus:border-transparent outline-none transition-all"
                  placeholder="Votre mot de passe"
                />
                <button
                  type="button"
                  onClick={() => setShowPassword(!showPassword)}
                  className="absolute right-3 top-1/2 -translate-y-1/2 text-gray-400 hover:text-gray-600"
                  aria-label={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>

            <button
              type="submit"
              disabled={loading}
              className="w-full bg-candlelight-500 hover:bg-candlelight-600 disabled:opacity-50 disabled:cursor-not-allowed text-black font-semibold py-3 rounded-xl transition-all duration-200 hover:shadow-lg"
            >
              {loading ? (
                <span className="inline-flex items-center gap-2">
                  <svg className="animate-spin w-5 h-5" viewBox="0 0 24 24" fill="none">
                    <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
                    <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
                  </svg>
                  Connexion...
                </span>
              ) : (
                'Se connecter'
              )}
            </button>
          </form>

          <div className="mt-6 text-center text-sm text-gray-500 dark:text-gray-400">
            Pas encore de compte ?{' '}
            <Link href="/inscription" className="text-malachite-600 dark:text-malachite-400 font-medium hover:underline">
              Créer un compte
            </Link>
          </div>
        </div>
      </div>
    </div>
  );
}