<?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_Adminhtml
 * @copyright   Copyright (c) 2013 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Adminhtml customer cart items grid block
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author     Magento Core Team <core@magentocommerce.com>
 */
class Mage_Adminhtml_Block_Customer_Edit_Tab_View_Cart extends Mage_Adminhtml_Block_Widget_Grid
{
    public function __construct()
    {
        parent::__construct();
        $this->setId('customer_view_cart_grid');
        $this->setDefaultSort('added_at', 'desc');
        $this->setSortable(false);
        $this->setPagerVisibility(false);
        $this->setFilterVisibility(false);
        $this->setEmptyText(Mage::helper('customer')->__('There are no items in customer\'s shopping cart at the moment'));
    }

    protected function _prepareCollection()
    {
        /** @var $quote Mage_Sales_Model_Quote */
        $quote = Mage::getModel('sales/quote');
        // set website to quote, if any
        if ($this->getWebsiteId()) {
            $quote->setWebsite(Mage::app()->getWebsite($this->getWebsiteId()));
        }
        $quote->loadByCustomer(Mage::registry('current_customer'));

        $collection = $quote ? $quote->getItemsCollection(false) : new Varien_Data_Collection();

        $collection->addFieldToFilter('parent_item_id', array('null' => true));
        $this->setCollection($collection);

        return parent::_prepareCollection();
    }

    protected function _prepareColumns()
    {
        $currencyCode = (string)Mage::getStoreConfig(Mage_Directory_Model_Currency::XML_PATH_CURRENCY_BASE);
        $this->addColumn('product_id', array(
            'header' => Mage::helper('customer')->__('Product ID'),
            'index' => 'product_id',
            'width' => '100px'
        ))->addColumn('name', array(
            'header' => Mage::helper('customer')->__('Product Name'),
            'index' => 'name'
        ))->addColumn('sku', array(
            'header' => Mage::helper('customer')->__('SKU'),
            'index' => 'sku',
            'width' => '100px'
        ))->addColumn('qty', array(
            'header' => Mage::helper('customer')->__('Qty'),
            'index' => 'qty',
            'type'  => 'number',
            'width' => '60px'
        ))->addColumn('price', array(
            'header' => Mage::helper('customer')->__('Price'),
            'index' => 'price',
            'type'  => 'currency',
            'currency_code' => $currencyCode
        ))->addColumn('total', array(
            'header' => Mage::helper('customer')->__('Total'),
            'index' => 'row_total',
            'type'  => 'currency',
            'currency_code' => $currencyCode
        ));

        return parent::_prepareColumns();
    }

    /**
     * Retrieve row url
     *
     * @param Mage_Sales_Model_Quote_Item $row
     * @return string
     */
    public function getRowUrl($row)
    {
        return $this->getUrl('*/catalog_product/edit', array('id' => $row->getProductId()));
    }

    /**
     * Check weather header should be shown
     *
     * @return bool
     */
    public function getHeadersVisibility()
    {
        return ($this->getCollection()->getSize() > 0);
    }
}
