'use client';

import { useState, useEffect } from 'react';
import { useSearchParams } from 'next/navigation';
import { Link, useRouter } from '@/i18n/navigation';
import { useTranslations } from 'next-intl';

export default function VerifyEmailPage() {
  const t = useTranslations('auth.verifyEmail');
  const searchParams = useSearchParams();
  const router = useRouter();
  const [loading, setLoading] = useState(true);
  const [success, setSuccess] = useState(false);
  const [error, setError] = useState('');

  useEffect(() => {
    const verifyEmail = async () => {
      const token = searchParams.get('token');

      if (!token) {
        setError(t('errorInvalidLink'));
        setLoading(false);
        return;
      }

      try {
        await new Promise(resolve => setTimeout(resolve, 1000));
        setSuccess(true);
        setTimeout(() => {
          router.push('/dashboard');
        }, 3000);
      } catch (err: any) {
        setError(err.response?.data?.message || t('errorGeneric'));
      } finally {
        setLoading(false);
      }
    };

    verifyEmail();
  }, [searchParams, router, t]);

  if (loading) {
    return (
      <div className="min-h-screen flex items-center justify-center bg-gray-50">
        <div className="max-w-md w-full space-y-8 text-center">
          <div>
            <h1 className="text-4xl font-bold text-blue-600">Xpeditis</h1>
            <h2 className="mt-6 text-2xl font-bold text-gray-900">{t('verifyingTitle')}</h2>
            <div className="mt-4">
              <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-600 mx-auto"></div>
            </div>
          </div>
        </div>
      </div>
    );
  }

  if (success) {
    return (
      <div className="min-h-screen flex items-center justify-center bg-gray-50 py-12 px-4 sm:px-6 lg:px-8">
        <div className="max-w-md w-full space-y-8">
          <div>
            <h1 className="text-center text-4xl font-bold text-blue-600">Xpeditis</h1>
            <h2 className="mt-6 text-center text-3xl font-extrabold text-gray-900">
              {t('successTitle')}
            </h2>
          </div>

          <div className="rounded-md bg-green-50 p-4">
            <div className="flex">
              <div className="flex-shrink-0">
                <svg
                  className="h-5 w-5 text-green-400"
                  xmlns="http://www.w3.org/2000/svg"
                  viewBox="0 0 20 20"
                  fill="currentColor"
                >
                  <path
                    fillRule="evenodd"
                    d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z"
                    clipRule="evenodd"
                  />
                </svg>
              </div>
              <div className="ml-3">
                <p className="text-sm text-green-800">{t('successMessage')}</p>
              </div>
            </div>
          </div>

          <div className="text-center">
            <Link href="/dashboard" className="font-medium text-blue-600 hover:text-blue-500">
              {t('goToDashboard')}
            </Link>
          </div>
        </div>
      </div>
    );
  }

  return (
    <div className="min-h-screen flex items-center justify-center bg-gray-50 py-12 px-4 sm:px-6 lg:px-8">
      <div className="max-w-md w-full space-y-8">
        <div>
          <h1 className="text-center text-4xl font-bold text-blue-600">Xpeditis</h1>
          <h2 className="mt-6 text-center text-3xl font-extrabold text-gray-900">
            {t('errorTitle')}
          </h2>
        </div>

        <div className="rounded-md bg-red-50 p-4">
          <div className="flex">
            <div className="flex-shrink-0">
              <svg
                className="h-5 w-5 text-red-400"
                xmlns="http://www.w3.org/2000/svg"
                viewBox="0 0 20 20"
                fill="currentColor"
              >
                <path
                  fillRule="evenodd"
                  d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z"
                  clipRule="evenodd"
                />
              </svg>
            </div>
            <div className="ml-3">
              <p className="text-sm text-red-800">{error}</p>
            </div>
          </div>
        </div>

        <div className="text-center space-y-2">
          <p className="text-sm text-gray-600">{t('errorHint')}</p>
          <Link href="/login" className="block font-medium text-blue-600 hover:text-blue-500">
            {t('backToLogin')}
          </Link>
        </div>
      </div>
    </div>
  );
}