<?php
/**
* @copyright (C) 2013 iJoomla, Inc. - All rights reserved.
* @license GNU General Public License, version 2 (http://www.gnu.org/licenses/gpl-2.0.html)
* @author iJoomla.com <webmaster@ijoomla.com>
* @url https://www.jomsocial.com/license-agreement
* The PHP code portions are distributed under the GPL license. If not otherwise stated, all images, manuals, cascading style sheets, and included JavaScript *are NOT GPL, and are released under the IJOOMLA Proprietary Use License v1.0
* More info at https://www.jomsocial.com/license-agreement
*/
// Disallow direct access to this file
defined('_JEXEC') or die('Restricted access');

jimport( 'joomla.application.component.model' );

class CommunityModelVideosCategories extends JModelLegacy
{
	/**
	 * Configuration data
	 *
	 * @var object	JPagination object
	 **/
	var $_pagination;

	/**
	 * Configuration data
	 *
	 * @var int	Total number of rows
	 **/
	var $_total;

	/**
	 * Configuration data
	 *
	 * @var int	Total number of rows
	 **/
	var $_data;

	/**
	 * Constructor
	 */
	public function __construct()
	{
		$mainframe	= JFactory::getApplication();

		// Call the parents constructor
		parent::__construct();

		// Get the pagination request variables
		$limit		= $mainframe->getUserStateFromRequest( 'global.list.limit', 'limit', $mainframe->get('list_limit'), 'int' );
		$limitstart	= $mainframe->getUserStateFromRequest( 'com_community.limitstart', 'limitstart', 0, 'int' );

		// In case limit has been changed, adjust limitstart accordingly
		$limitstart = ($limit != 0 ? (floor($limitstart / $limit) * $limit) : 0);

		$this->setState('limit', $limit);
		$this->setState('limitstart', $limitstart);
	}

	/**
	 * Method to get a pagination object for the events
	 *
	 * @access public
	 * @return integer
	 */
	public function getPagination()
	{
		// Lets load the content if it doesn't already exist
		if ( empty( $this->_pagination ) )
		{
			jimport('joomla.html.pagination');
			$this->_pagination = new JPagination( $this->getTotal(), $this->getState('limitstart'), $this->getState('limit') );
		}

		return $this->_pagination;
	}

	/**
	 * Method to return the total number of rows
	 *
	 * @access public
	 * @return integer
	 */
	public function getTotal()
	{
		// Load total number of rows
		if( empty($this->_total) )
		{
			$this->_total	= $this->_getListCount( $this->_buildQuery() );
		}

		return $this->_total;
	}

	/**
	 * Build the SQL query string
	 *
	 * @access	private
	 * @return	string	SQL Query string
	 */
	public function _buildQuery()
	{
		$db			= JFactory::getDBO();

		$query		= 'SELECT cat.*,'
					. 'COUNT(DISTINCT(cat.id)) AS videoscount FROM '
					. $db->quoteName( '#__community_videos_category' ) . ' AS cat '
					. 'LEFT JOIN ' . $db->quoteName( '#__community_videos' ) . ' AS vid '
					. 'ON cat.id = vid.category_id '
					. 'GROUP BY cat.id';

		return $query;
	}

	/**
	 * Returns the Groups Categories list
	 *
	 * @return Array An array of group category objects
	 **/
	public function &getCategories()
	{
		$mainframe	= JFactory::getApplication();

		if(empty($this->_data))
		{

			$query = $this->_buildQuery();

			$this->_data	= $this->_getList( $this->_buildQuery());
		}
		return $this->_data;
	}

    /**
     * Given an id, check all the descendant of the category based on the given list
     * @param $id
     * @param $categories
     * @param array $list
     * @return array
     */
    public function getCategoryChilds($id, $categories, $list = array()){
        foreach($categories as $category){
            if($category->parent == $id){
                $list[] = $category->id;
                $list = $this->getCategoryChilds($category->id, $categories, $list);
            }
        }

        return $list;
    }

}