<?php
/**
 * OpenMage
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available at https://opensource.org/license/osl-3-0-php
 *
 * @category   Mage
 * @package    Mage_Captcha
 * @copyright  Copyright (c) 2006-2020 Magento, Inc. (https://www.magento.com)
 * @copyright  Copyright (c) 2020-2023 The OpenMage Contributors (https://www.openmage.org)
 * @license    https://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Captcha block
 *
 * @category   Core
 * @package    Mage_Captcha
 *
 * @method string getFormId()
 * @method bool getIsAjax()
 */
class Mage_Captcha_Block_Captcha_Zend extends Mage_Core_Block_Template
{
    protected $_template = 'captcha/zend.phtml';

    /**
     * @var string
     */
    protected $_captcha;

    /**
     * Returns template path
     *
     * @return string
     */
    public function getTemplate()
    {
        return $this->getIsAjax() ? '' : $this->_template;
    }

    /**
     * Returns URL to controller action which returns new captcha image
     *
     * @return string
     */
    public function getRefreshUrl()
    {
        return Mage::getUrl(
            Mage::app()->getStore()->isAdmin() ? 'adminhtml/refresh/refresh' : 'captcha/refresh',
            ['_secure' => Mage::app()->getStore()->isCurrentlySecure()]
        );
    }

    /**
     * Renders captcha HTML (if required)
     *
     * @return string
     */
    protected function _toHtml()
    {
        if (Mage::helper('captcha')->isEnabled() && $this->getCaptchaModel()->isRequired()) {
            $this->getCaptchaModel()->generate();
            return parent::_toHtml();
        }
        return '';
    }

    /**
     * Returns captcha model
     *
     * @return Mage_Captcha_Model_Interface
     */
    public function getCaptchaModel()
    {
        return Mage::helper('captcha')->getCaptcha($this->getFormId());
    }
}
