<?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_Feed_Reader

 * @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: Feed.php 20096 2010-01-06 02:05:09Z bkarwin $

 */

/**

 * @see Zend_Feed_Reader_Extension_FeedAbstract

 */

require_once 'Zend/Feed/Reader/Extension/FeedAbstract.php';

/**

 * @category   Zend

 * @package    Zend_Feed_Reader

 * @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_Feed_Reader_Extension_Podcast_Feed extends Zend_Feed_Reader_Extension_FeedAbstract

{

    /**

     * Get the entry author

     *

     * @return string

     */

    public function getCastAuthor()

    {

        if (isset($this->_data['author'])) {

            return $this->_data['author'];

        }

        $author = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:author)');

        if (!$author) {

            $author = null;

        }

        $this->_data['author'] = $author;

        return $this->_data['author'];

    }

    /**

     * Get the entry block

     *

     * @return string

     */

    public function getBlock()

    {

        if (isset($this->_data['block'])) {

            return $this->_data['block'];

        }

        $block = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:block)');

        if (!$block) {

            $block = null;

        }

        $this->_data['block'] = $block;

        return $this->_data['block'];

    }

    /**

     * Get the entry category

     *

     * @return string

     */

    public function getCategories()

    {

        if (isset($this->_data['categories'])) {

            return $this->_data['categories'];

        }

        $categoryList = $this->_xpath->query($this->getXpathPrefix() . '/itunes:category');

        $categories = array();

        if ($categoryList->length > 0) {

            foreach ($categoryList as $node) {

                $children = null;

                if ($node->childNodes->length > 0) {

                    $children = array();

                    foreach ($node->childNodes as $childNode) {

                        if (!($childNode instanceof DOMText)) {

                            $children[$childNode->getAttribute('text')] = null;

                        }

                    }

                }

                $categories[$node->getAttribute('text')] = $children;

            }

        }

        if (!$categories) {

            $categories = null;

        }

        $this->_data['categories'] = $categories;

        return $this->_data['categories'];

    }

    /**

     * Get the entry explicit

     *

     * @return string

     */

    public function getExplicit()

    {

        if (isset($this->_data['explicit'])) {

            return $this->_data['explicit'];

        }

        $explicit = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:explicit)');

        if (!$explicit) {

            $explicit = null;

        }

        $this->_data['explicit'] = $explicit;

        return $this->_data['explicit'];

    }

    /**

     * Get the entry image

     *

     * @return string

     */

    public function getImage()

    {

        if (isset($this->_data['image'])) {

            return $this->_data['image'];

        }

        $image = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:image/@href)');

        if (!$image) {

            $image = null;

        }

        $this->_data['image'] = $image;

        return $this->_data['image'];

    }

    /**

     * Get the entry keywords

     *

     * @return string

     */

    public function getKeywords()

    {

        if (isset($this->_data['keywords'])) {

            return $this->_data['keywords'];

        }

        $keywords = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:keywords)');

        if (!$keywords) {

            $keywords = null;

        }

        $this->_data['keywords'] = $keywords;

        return $this->_data['keywords'];

    }

    /**

     * Get the entry's new feed url

     *

     * @return string

     */

    public function getNewFeedUrl()

    {

        if (isset($this->_data['new-feed-url'])) {

            return $this->_data['new-feed-url'];

        }

        $newFeedUrl = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:new-feed-url)');

        if (!$newFeedUrl) {

            $newFeedUrl = null;

        }

        $this->_data['new-feed-url'] = $newFeedUrl;

        return $this->_data['new-feed-url'];

    }

    /**

     * Get the entry owner

     *

     * @return string

     */

    public function getOwner()

    {

        if (isset($this->_data['owner'])) {

            return $this->_data['owner'];

        }

        $owner = null;

        $email = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:owner/itunes:email)');

        $name  = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:owner/itunes:name)');

        if (!empty($email)) {

            $owner = $email . (empty($name) ? '' : ' (' . $name . ')');

        } else if (!empty($name)) {

            $owner = $name;

        }

        if (!$owner) {

            $owner = null;

        }

        $this->_data['owner'] = $owner;

        return $this->_data['owner'];

    }

    /**

     * Get the entry subtitle

     *

     * @return string

     */

    public function getSubtitle()

    {

        if (isset($this->_data['subtitle'])) {

            return $this->_data['subtitle'];

        }

        $subtitle = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:subtitle)');

        if (!$subtitle) {

            $subtitle = null;

        }

        $this->_data['subtitle'] = $subtitle;

        return $this->_data['subtitle'];

    }

    /**

     * Get the entry summary

     *

     * @return string

     */

    public function getSummary()

    {

        if (isset($this->_data['summary'])) {

            return $this->_data['summary'];

        }

        $summary = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:summary)');

        if (!$summary) {

            $summary = null;

        }

        $this->_data['summary'] = $summary;

        return $this->_data['summary'];

    }

    /**

     * Register iTunes namespace

     *

     */

    protected function _registerNamespaces()

    {

        $this->_xpath->registerNamespace('itunes', 'http://www.itunes.com/dtds/podcast-1.0.dtd');

    }

}