'use client';

import { useState } from 'react';
import Link from 'next/link';
import { useLanguage } from '@/context/LanguageContext';
import { useAuth } from '@/context/AuthContext';
import Card from '@/components/ui/Card';
import Button from '@/components/ui/Button';
import Input from '@/components/ui/Input';
import GoogleSignInButton from '@/components/GoogleSignInButton';
import { redirectAfterAuth } from '@/lib/authRedirect';
import toast from 'react-hot-toast';

const REDIRECT_TO = '/dashboard';

export default function RegisterPage() {
  const { t, locale: language } = useLanguage();
  const { register } = useAuth();
  const [loading, setLoading] = useState(false);
  const [redirecting, setRedirecting] = useState(false);
  const [formData, setFormData] = useState({
    name: '',
    email: '',
    password: '',
    phone: '',
  });

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

    try {
      await register(formData);
      toast.success(language === 'es' ? 'Cuenta creada exitosamente!' : 'Account created successfully!');
      // Deliberately leaves `loading` set: the button must stay disabled until the
      // browser replaces this page.
      setRedirecting(true);
      redirectAfterAuth(REDIRECT_TO);
    } catch (error: any) {
      toast.error(error.message || t('auth.errors.emailExists'));
      setLoading(false);
    }
  };

  return (
    <div className="section-padding min-h-[70vh] flex items-center">
      <div className="container-page">
        <div className="max-w-md mx-auto">
          <div className="text-center mb-8">
            <h1 className="text-3xl font-bold">{t('auth.register.title')}</h1>
            <p className="mt-2 text-gray-600">{t('auth.register.subtitle')}</p>
          </div>

          <Card className="p-8">
            {/* Google Sign-In Button */}
            <GoogleSignInButton 
              redirectTo="/dashboard"
              text="signup_with"
              className="mb-4"
            />
            
            {/* Or Divider */}
            <div className="relative my-6">
              <div className="absolute inset-0 flex items-center">
                <div className="w-full border-t border-gray-300"></div>
              </div>
              <div className="relative flex justify-center text-sm">
                <span className="px-2 bg-white text-gray-500">
                  {language === 'es' ? 'o registrarse con email' : 'or register with email'}
                </span>
              </div>
            </div>

            <form onSubmit={handleSubmit} className="space-y-6">
              <Input
                id="name"
                label={t('auth.register.name')}
                value={formData.name}
                onChange={(e) => setFormData({ ...formData, name: e.target.value })}
                required
                minLength={2}
              />
              
              <Input
                id="email"
                label={t('auth.register.email')}
                type="email"
                value={formData.email}
                onChange={(e) => setFormData({ ...formData, email: e.target.value })}
                required
              />
              
              <Input
                id="password"
                label={t('auth.register.password')}
                type="password"
                value={formData.password}
                onChange={(e) => setFormData({ ...formData, password: e.target.value })}
                required
                minLength={8}
              />
              
              <Input
                id="phone"
                label={t('auth.register.phone')}
                type="tel"
                value={formData.phone}
                onChange={(e) => setFormData({ ...formData, phone: e.target.value })}
              />
              
              <Button
                type="submit"
                className="w-full"
                size="lg"
                isLoading={loading || redirecting}
                loadingText={redirecting ? t('auth.login.redirecting') : t('common.loading')}
              >
                {t('auth.register.submit')}
              </Button>

              {redirecting && (
                <p
                  className="text-center text-sm text-gray-600"
                  role="status"
                  aria-live="polite"
                >
                  {t('auth.login.redirecting')}
                </p>
              )}
            </form>

            <p className="mt-6 text-center text-sm text-gray-600">
              {t('auth.register.hasAccount')}{' '}
              <Link href="/login" className="text-secondary-blue hover:underline font-medium">
                {t('auth.register.login')}
              </Link>
            </p>
          </Card>
        </div>
      </div>
    </div>
  );
}