<?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_Catalog
 * @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)
 */

/**
 * Catalog product related items block
 *
 * @category   Mage
 * @package    Mage_Catalog
 */
class Mage_Catalog_Block_Product_List_Related extends Mage_Catalog_Block_Product_Abstract
{
    /**
     * Default MAP renderer type
     *
     * @var string
     */
    protected $_mapRenderer = 'msrp_noform';

    protected $_itemCollection;

    /**
     * @return $this
     */
    protected function _prepareData()
    {
        $product = Mage::registry('product');
        /** @var Mage_Catalog_Model_Product $product */

        $this->_itemCollection = $product->getRelatedProductCollection()
            ->addAttributeToSelect('required_options')
            ->setPositionOrder()
            ->addStoreFilter()
        ;

        if (Mage::helper('catalog')->isModuleEnabled('Mage_Checkout')) {
            Mage::getResourceSingleton('checkout/cart')->addExcludeProductFilter(
                $this->_itemCollection,
                Mage::getSingleton('checkout/session')->getQuoteId()
            );
            $this->_addProductAttributesAndPrices($this->_itemCollection);
        }
        Mage::getSingleton('catalog/product_visibility')->addVisibleInCatalogFilterToCollection($this->_itemCollection);

        $this->_itemCollection->load();

        foreach ($this->_itemCollection as $product) {
            $product->setDoNotUseCategoryId(true);
        }

        return $this;
    }

    /**
     * @return Mage_Catalog_Block_Product_Abstract
     */
    protected function _beforeToHtml()
    {
        $this->_prepareData();
        return parent::_beforeToHtml();
    }

    /**
     * @return mixed
     */
    public function getItems()
    {
        return $this->_itemCollection;
    }

    /**
     * Get tags array for saving cache
     *
     * @return array
     */
    public function getCacheTags()
    {
        return array_merge(parent::getCacheTags(), $this->getItemsTags($this->getItems()));
    }
}
