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<?php

/*
 * This file is part of Respect/Validation.
 *
 * (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
 *
 * For the full copyright and license information, please view the "LICENSE.md"
 * file that was distributed with this source code.
 */

namespace Respect\Validation\Rules;

use Egulias\EmailValidator\EmailValidator;
use Egulias\EmailValidator\Validation\RFCValidation;

class Email extends AbstractRule
{
    public function __construct(EmailValidator $emailValidator = null)
    {
        $this->emailValidator = $emailValidator;
    }

public function getEmailValidator()
    {
        if (!$this->emailValidator instanceof EmailValidator
            && class_exists('Egulias\\EmailValidator\\EmailValidator')) {
            $this->emailValidator = new EmailValidator();
        }

return $this->emailValidator;
    }

public function validate($input)
    {
        if (!is_string($input)) {
            return false;
        }

$emailValidator = $this->getEmailValidator();
        if (!$emailValidator instanceof EmailValidator) {
            return (bool) filter_var($input, FILTER_VALIDATE_EMAIL);
        }

if (!class_exists('Egulias\\EmailValidator\\Validation\\RFCValidation')) {
            return $emailValidator->isValid($input);
        }

return $emailValidator->isValid($input, new RFCValidation());
    }
}