<?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_Adminhtml
 * @copyright   Copyright (c) 2009 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */
class Mage_Adminhtml_Model_Extension_Local_Collection extends Mage_Adminhtml_Model_Extension_Collection_Abstract
{
    protected function _fetchPackages()
    {
        // fetch installed packages
        $pear = Varien_Pear::getInstance();
        $pear->run('list', array('allchannels'=>1));
        $output = $pear->getOutput();

        // load available packages into array
        $packages = array();
        foreach ($output as $i=>$channelRoot) {
            $channel = $channelRoot['output'];
            if (!isset($channel['headline'])) {
                continue;
            }
            foreach ($channel['data'] as $j=>$pkg) {
                $packages[] = array(
                    'id'=>$channel['channel'].'|'.$pkg[0],
                    'channel'=>$channel['channel'],
                    'name'=>$pkg[0],
                    'version'=>$pkg[1],
                    'stability'=>$pkg[2],
                );
            }
        }

        return $packages;
    }
}
