'use client';

import { useState } from 'react';
import { Shield, Mail, Loader2, ArrowLeft, CheckCircle } from 'lucide-react';
import Link from 'next/link';
import { motion } from 'framer-motion';

export default function ForgotPasswordForm() {
  const [email, setEmail] = useState('');
  const [loading, setLoading] = useState(false);
  const [sent, setSent] = useState(false);
  const [error, setError] = useState('');

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    setError('');
    setLoading(true);
    try {
      const res = await fetch('/api/password-reset/request', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ email }),
      });
      const data = await res.json();
      if (data?.success) {
        setSent(true);
      } else {
        setError(data?.error ?? 'Error al enviar solicitud');
      }
    } catch {
      setError('Error de conexión');
    } finally {
      setLoading(false);
    }
  };

  return (
    <div className="min-h-screen flex items-center justify-center bg-gradient-to-br from-[#0f2440] via-[#1a365d] to-[#2c5282] px-4">
      <motion.div
        initial={{ opacity: 0, y: 30 }}
        animate={{ opacity: 1, y: 0 }}
        className="w-full max-w-md"
      >
        <div className="bg-white rounded-lg shadow-2xl p-8">
          <div className="flex flex-col items-center mb-6">
            <div className="bg-[#1a365d] p-3 rounded-xl mb-4">
              <Shield className="w-8 h-8 text-white" />
            </div>
            <h1 className="text-xl font-bold text-[#1a365d]">Recuperar contraseña</h1>
            <p className="text-gray-500 text-sm mt-1 text-center">Introduce tu email y te enviaremos un enlace para restablecer tu contraseña</p>
          </div>

          {sent ? (
            <motion.div initial={{ opacity: 0 }} animate={{ opacity: 1 }} className="text-center">
              <CheckCircle className="w-12 h-12 text-green-500 mx-auto mb-3" />
              <p className="text-gray-700 mb-4">Si el email existe en nuestro sistema, recibirás instrucciones para restablecer tu contraseña.</p>
              <Link href="/login" className="text-[#3182ce] hover:underline text-sm">← Volver al login</Link>
            </motion.div>
          ) : (
            <form onSubmit={handleSubmit} className="space-y-4">
              {error && <div className="bg-red-50 text-red-700 p-3 rounded-lg text-sm">{error}</div>}
              <div className="relative">
                <Mail className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-gray-400" />
                <input
                  type="email"
                  value={email}
                  onChange={(e) => setEmail(e.target.value)}
                  placeholder="tu@email.com"
                  required
                  className="w-full pl-10 pr-4 py-2.5 border border-gray-300 rounded-lg focus:ring-2 focus:ring-[#3182ce] focus:border-transparent outline-none transition text-gray-900"
                />
              </div>
              <button type="submit" disabled={loading} className="w-full bg-[#1a365d] hover:bg-[#2c5282] text-white py-2.5 rounded-lg font-medium transition-colors flex items-center justify-center gap-2 disabled:opacity-60">
                {loading ? <Loader2 className="w-4 h-4 animate-spin" /> : null}
                {loading ? 'Enviando...' : 'Enviar enlace de recuperación'}
              </button>
              <div className="text-center">
                <Link href="/login" className="text-sm text-gray-500 hover:text-[#3182ce] inline-flex items-center gap-1">
                  <ArrowLeft className="w-3 h-3" /> Volver al login
                </Link>
              </div>
            </form>
          )}
        </div>
      </motion.div>
    </div>
  );
}