<?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@magento.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.magento.com for more information.
 *
 * @category    Mage
 * @package     Mage_Checkout
 * @copyright  Copyright (c) 2006-2017 X.commerce, Inc. and affiliates (http://www.magento.com)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Checkout observer model
 *
 * @category   Mage
 * @package    Mage_Checkout
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Checkout_Model_Observer
{
    public function unsetAll()
    {
        Mage::getSingleton('checkout/session')->unsetAll();
    }

    public function loadCustomerQuote()
    {
        try {
            Mage::getSingleton('checkout/session')->loadCustomerQuote();
        }
        catch (Mage_Core_Exception $e) {
            Mage::getSingleton('checkout/session')->addError($e->getMessage());
        }
        catch (Exception $e) {
            Mage::getSingleton('checkout/session')->addException(
                $e,
                Mage::helper('checkout')->__('Load customer quote error')
            );
        }
    }

    public function salesQuoteSaveAfter($observer)
    {
        $quote = $observer->getEvent()->getQuote();
        /* @var $quote Mage_Sales_Model_Quote */
        if ($quote->getIsCheckoutCart()) {
            Mage::getSingleton('checkout/session')->getQuoteId($quote->getId());
        }
    }
}