<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * 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@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_Service

 * @subpackage Amazon

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: Item.php 21883 2010-04-16 14:57:07Z dragonbe $

 */

/**

 * @category   Zend

 * @package    Zend_Service

 * @subpackage Amazon

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Service_Amazon_Item

{

    /**

     * @var string

     */

    public $ASIN;

    /**

     * @var string

     */

    public $DetailPageURL;

    /**

     * @var int

     */

    public $SalesRank;

    /**

     * @var int

     */

    public $TotalReviews;

    /**

     * @var int

     */

    public $AverageRating;

    /**

     * @var string

     */

    public $SmallImage;

    /**

     * @var string

     */

    public $MediumImage;

    /**

     * @var string

     */

    public $LargeImage;

    /**

     * @var string

     */

    public $Subjects;

    /**

     * @var Zend_Service_Amazon_OfferSet

     */

    public $Offers;

    /**

     * @var Zend_Service_Amazon_CustomerReview[]

     */

    public $CustomerReviews = array();

    /**

     * @var Zend_Service_Amazon_SimilarProducts[]

     */

    public $SimilarProducts = array();

    /**

     * @var Zend_Service_Amazon_Accessories[]

     */

    public $Accessories = array();

    /**

     * @var array

     */

    public $Tracks = array();

    /**

     * @var Zend_Service_Amazon_ListmaniaLists[]

     */

    public $ListmaniaLists = array();

    protected $_dom;

    /**

     * Parse the given <Item> element

     *

     * @param  null|DOMElement $dom

     * @return void

     * @throws	Zend_Service_Amazon_Exception

     * 

     * @group ZF-9547

     */

    public function __construct($dom)

    {

    	if (null === $dom) {

    		require_once 'Zend/Service/Amazon/Exception.php';

    		throw new Zend_Service_Amazon_Exception('Item element is empty');

    	}

    	if (!$dom instanceof DOMElement) {

    		require_once 'Zend/Service/Amazon/Exception.php';

    		throw new Zend_Service_Amazon_Exception('Item is not a valid DOM element');

    	}

        $xpath = new DOMXPath($dom->ownerDocument);

        $xpath->registerNamespace('az', 'http://webservices.amazon.com/AWSECommerceService/2005-10-05');

        $this->ASIN = $xpath->query('./az:ASIN/text()', $dom)->item(0)->data;

        $result = $xpath->query('./az:DetailPageURL/text()', $dom);

        if ($result->length == 1) {

            $this->DetailPageURL = $result->item(0)->data;

        }

        if ($xpath->query('./az:ItemAttributes/az:ListPrice', $dom)->length >= 1) {

            $this->CurrencyCode = (string) $xpath->query('./az:ItemAttributes/az:ListPrice/az:CurrencyCode/text()', $dom)->item(0)->data;

            $this->Amount = (int) $xpath->query('./az:ItemAttributes/az:ListPrice/az:Amount/text()', $dom)->item(0)->data;

            $this->FormattedPrice = (string) $xpath->query('./az:ItemAttributes/az:ListPrice/az:FormattedPrice/text()', $dom)->item(0)->data;

        }

        $result = $xpath->query('./az:ItemAttributes/az:*/text()', $dom);

        if ($result->length >= 1) {

            foreach ($result as $v) {

                if (isset($this->{$v->parentNode->tagName})) {

                    if (is_array($this->{$v->parentNode->tagName})) {

                        array_push($this->{$v->parentNode->tagName}, (string) $v->data);

                    } else {

                        $this->{$v->parentNode->tagName} = array($this->{$v->parentNode->tagName}, (string) $v->data);

                    }

                } else {

                    $this->{$v->parentNode->tagName} = (string) $v->data;

                }

            }

        }

        foreach (array('SmallImage', 'MediumImage', 'LargeImage') as $im) {

            $result = $xpath->query("./az:ImageSets/az:ImageSet[position() = 1]/az:$im", $dom);

            if ($result->length == 1) {

                /**

                 * @see Zend_Service_Amazon_Image

                 */

                require_once 'Zend/Service/Amazon/Image.php';

                $this->$im = new Zend_Service_Amazon_Image($result->item(0));

            }

        }

        $result = $xpath->query('./az:SalesRank/text()', $dom);

        if ($result->length == 1) {

            $this->SalesRank = (int) $result->item(0)->data;

        }

        $result = $xpath->query('./az:CustomerReviews/az:Review', $dom);

        if ($result->length >= 1) {

            /**

             * @see Zend_Service_Amazon_CustomerReview

             */

            require_once 'Zend/Service/Amazon/CustomerReview.php';

            foreach ($result as $review) {

                $this->CustomerReviews[] = new Zend_Service_Amazon_CustomerReview($review);

            }

            $this->AverageRating = (float) $xpath->query('./az:CustomerReviews/az:AverageRating/text()', $dom)->item(0)->data;

            $this->TotalReviews = (int) $xpath->query('./az:CustomerReviews/az:TotalReviews/text()', $dom)->item(0)->data;

        }

        $result = $xpath->query('./az:EditorialReviews/az:*', $dom);

        if ($result->length >= 1) {

            /**

             * @see Zend_Service_Amazon_EditorialReview

             */

            require_once 'Zend/Service/Amazon/EditorialReview.php';

            foreach ($result as $r) {

                $this->EditorialReviews[] = new Zend_Service_Amazon_EditorialReview($r);

            }

        }

        $result = $xpath->query('./az:SimilarProducts/az:*', $dom);

        if ($result->length >= 1) {

            /**

             * @see Zend_Service_Amazon_SimilarProduct

             */

            require_once 'Zend/Service/Amazon/SimilarProduct.php';

            foreach ($result as $r) {

                $this->SimilarProducts[] = new Zend_Service_Amazon_SimilarProduct($r);

            }

        }

        $result = $xpath->query('./az:ListmaniaLists/*', $dom);

        if ($result->length >= 1) {

            /**

             * @see Zend_Service_Amazon_ListmaniaList

             */

            require_once 'Zend/Service/Amazon/ListmaniaList.php';

            foreach ($result as $r) {

                $this->ListmaniaLists[] = new Zend_Service_Amazon_ListmaniaList($r);

            }

        }

        $result = $xpath->query('./az:Tracks/az:Disc', $dom);

        if ($result->length > 1) {

            foreach ($result as $disk) {

                foreach ($xpath->query('./*/text()', $disk) as $t) {

                    // TODO: For consistency in a bugfix all tracks are appended to one single array

                    // Erroreous line: $this->Tracks[$disk->getAttribute('number')] = (string) $t->data;

                    $this->Tracks[] = (string) $t->data;

                }

            }

        } else if ($result->length == 1) {

            foreach ($xpath->query('./*/text()', $result->item(0)) as $t) {

                $this->Tracks[] = (string) $t->data;

            }

        }

        $result = $xpath->query('./az:Offers', $dom);

        $resultSummary = $xpath->query('./az:OfferSummary', $dom);

        if ($result->length > 1 || $resultSummary->length == 1) {

            /**

             * @see Zend_Service_Amazon_OfferSet

             */

            require_once 'Zend/Service/Amazon/OfferSet.php';

            $this->Offers = new Zend_Service_Amazon_OfferSet($dom);

        }

        $result = $xpath->query('./az:Accessories/*', $dom);

        if ($result->length > 1) {

            /**

             * @see Zend_Service_Amazon_Accessories

             */

            require_once 'Zend/Service/Amazon/Accessories.php';

            foreach ($result as $r) {

                $this->Accessories[] = new Zend_Service_Amazon_Accessories($r);

            }

        }

        $this->_dom = $dom;

    }

    /**

     * Returns the item's original XML

     *

     * @return string

     */

    public function asXml()

    {

        return $this->_dom->ownerDocument->saveXML($this->_dom);

    }

}