<?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_XmlConnect


 * @copyright   Copyright (c) 2011 Magento Inc. (http://www.magentocommerce.com)


 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)


 */





/**


 * Product search results renderer


 *


 * @category    Mage


 * @package     Mage_XmlConnect


 * @author      Magento Core Team <core@magentocommerce.com>


 */


class Mage_XmlConnect_Block_Catalog_Search extends Mage_XmlConnect_Block_Catalog


{


    /**


     * Search results xml renderer


     * XML also contains filters that can be apply (accorfingly already applyed filters


     * and search query) and sort fields


     *


     * @return string


     */


    protected function _toHtml()


    {


        $searchXmlObject  = Mage::getModel('xmlconnect/simplexml_element', '<search></search>');


        $filtersXmlObject = Mage::getModel('xmlconnect/simplexml_element', '<filters></filters>');





        $helper = Mage::helper('catalogsearch');


        if (method_exists($helper, 'getEngine')) {


            $engine = Mage::helper('catalogsearch')->getEngine();


            if ($engine instanceof Varien_Object) {


                $isLayeredNavigationAllowed = $engine->isLeyeredNavigationAllowed();


            } else {


                $isLayeredNavigationAllowed = true;


            }


        } else {


            $isLayeredNavigationAllowed = true;


        }





        $hasMoreProductItems = 0;





        /**


         * Products


         */


        $productListBlock = $this->getChild('product_list');


        if ($productListBlock) {


            $layer = Mage::getSingleton('catalogsearch/layer');


            $productsXmlObj = $productListBlock->setLayer($layer)


                ->setNeedBlockApplyingFilters(!$isLayeredNavigationAllowed)->getProductsXmlObject();


            $searchXmlObject->appendChild($productsXmlObj);


            $hasMoreProductItems = (int)$productListBlock->getHasProductItems();


        }





        $searchXmlObject->addAttribute('has_more_items', $hasMoreProductItems);





        /**


         * Filters


         */


        $showFiltersAndOrders = (bool) count($productsXmlObj);


        $requestParams = $this->getRequest()->getParams();


        foreach ($requestParams as $key => $value) {


            if (0 === strpos($key, parent::REQUEST_SORT_ORDER_PARAM_REFIX)


                || 0 === strpos($key, parent::REQUEST_FILTER_PARAM_REFIX)


            ) {


                $showFiltersAndOrders = false;


                break;


            }


        }


        if ($isLayeredNavigationAllowed && $productListBlock && $showFiltersAndOrders) {


            $filters = $productListBlock->getCollectedFilters();


            /**


             * Render filters xml


             */


            foreach ($filters as $filter) {


                if (!$this->_isFilterItemsHasValues($filter)) {


                    continue;


                }


                $item = $filtersXmlObject->addChild('item');


                $item->addChild('name', $searchXmlObject->xmlentities($filter->getName()));


                $item->addChild('code', $filter->getRequestVar());


                $values = $item->addChild('values');





                foreach ($filter->getItems() as $valueItem) {


                    $count = (int)$valueItem->getCount();


                    if (!$count) {


                        continue;


                    }


                    $value = $values->addChild('value');


                    $value->addChild('id', $valueItem->getValueString());


                    $value->addChild(


                        'label', $searchXmlObject->xmlentities(strip_tags($valueItem->getLabel()))


                    );


                    $value->addChild('count', $count);


                }


            }


            $searchXmlObject->appendChild($filtersXmlObject);


        }





        /**


         * Sort fields


         */


        if ($showFiltersAndOrders) {


            $searchXmlObject->appendChild($this->getProductSortFeildsXmlObject());


        }





        return $searchXmlObject->asNiceXml();


    }





    /**


     * Check if items of specified filter have values


     *


     * @param object $filter filter model


     * @return bool


     */


    protected function _isFilterItemsHasValues($filter)


    {


        if (!$filter->getItemsCount()) {


            return false;


        }


        foreach ($filter->getItems() as $valueItem) {


            if ((int)$valueItem->getCount()) {


                return true;


            }


        }


        return false;


    }


}