<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * 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 through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    Mage
 * @package     Mage_Authorizenet
 * @copyright   Copyright (c) 2010 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Authorize.net response model for DirectPost model.
 *
 * @category   Mage
 * @package    Mage_Authorizenet
 * @author     Magento Core Team <core@magentocommerce.com>
 */
class Mage_Authorizenet_Model_Directpost_Response extends Varien_Object
{
    /**
     * Generates an Md5 hash to compare against AuthNet's.
     *
     * @param string $merchantMd5
     * @param string $merchantApiLogin
     * @param string $amount
     * @param string $transactionId
     * @return string
     */
    public function generateHash($merchantMd5, $merchantApiLogin, $amount, $transactionId)
    {
        if (!$amount) {
            $amount = '0.00';
        }
        return strtoupper(md5($merchantMd5 . $merchantApiLogin . $transactionId . $amount));
    }

    /**
     * Return if is valid order id.
     *
     * @param string $merchantMd5
     * @param string $merchantApiLogin
     * @return bool
     */
    public function isValidHash($merchantMd5, $merchantApiLogin)
    {
        return $this->generateHash($merchantMd5, $merchantApiLogin, $this->getXAmount(), $this->getXTransId())
            == $this->getData('x_MD5_Hash');
    }

    /**
     * Return if this is approved response from Authorize.net auth request.
     *
     * @return bool
     */
    public function isApproved()
    {
        return $this->getXResponseCode() == Mage_Authorizenet_Model_Directpost::RESPONSE_CODE_APPROVED;
    }
}
