<?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_Rss
 * @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)
 */
class Mage_Rss_Block_Catalog_Abstract extends Mage_Rss_Block_Abstract
{
    /**
     * Stored price block instances
     * @var array
     */
    protected $_priceBlock = array();

    /**
     * Stored price blocks info
     * @var array
     */
    protected $_priceBlockTypes = array();

    /**
     * Default values for price block and template
     * @var string
     */
    protected $_priceBlockDefaultTemplate = 'catalog/rss/product/price.phtml';
    protected $_priceBlockDefaultType = 'catalog/product_price';

    /**
     * Whether to show "As low as" as a link
     * @var bool
     */
    protected $_useLinkForAsLowAs = true;

    /**
     * Return Price Block renderer for specified product type
     *
     * @param string $productTypeId Catalog Product type
     * @return Mage_Core_Block_Abstract
     */
    protected function _getPriceBlock($productTypeId)
    {
        if (!isset($this->_priceBlock[$productTypeId])) {
            $block = $this->_priceBlockDefaultType;
            if (isset($this->_priceBlockTypes[$productTypeId])) {
                if ($this->_priceBlockTypes[$productTypeId]['block'] != '') {
                    $block = $this->_priceBlockTypes[$productTypeId]['block'];
                }
            }
            $this->_priceBlock[$productTypeId] = $this->getLayout()->createBlock($block);
        }
        return $this->_priceBlock[$productTypeId];
    }

    /**
     * Return template for Price Block renderer
     *
     * @param string $productTypeId Catalog Product type
     * @return string
     */
    protected function _getPriceBlockTemplate($productTypeId)
    {
        if (isset($this->_priceBlockTypes[$productTypeId])) {
            if ($this->_priceBlockTypes[$productTypeId]['template'] != '') {
                return $this->_priceBlockTypes[$productTypeId]['template'];
            }
        }
        return $this->_priceBlockDefaultTemplate;
    }

    /**
     * Returns product price html for RSS feed
     *
     * @param Mage_Catalog_Model_Product $product
     * @param bool $displayMinimalPrice Display "As low as" etc.
     * @param string $idSuffix Suffix for HTML containers
     * @return string
     */
    public function getPriceHtml($product, $displayMinimalPrice = false, $idSuffix='')
    {
        return $this->_getPriceBlock($product->getTypeId())
            ->setTemplate($this->_getPriceBlockTemplate($product->getTypeId()))
            ->setProduct($product)
            ->setDisplayMinimalPrice($displayMinimalPrice)
            ->setIdSuffix($idSuffix)
            ->setUseLinkForAsLowAs($this->_useLinkForAsLowAs)
            ->toHtml();
    }

    /**
     * Adding customized price template for product type, used as action in layouts
     *
     * @param string $type Catalog Product Type
     * @param string $block Block Type
     * @param string $template Template
     */
    public function addPriceBlockType($type, $block = '', $template = '')
    {
        if ($type) {
            $this->_priceBlockTypes[$type] = array(
                'block' => $block,
                'template' => $template
            );
        }
    }
}