<?php
/**
 *  Copyright (C) 2010  Kai Dorschner
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @author Kai Dorschner <the-hide@address.com>
 * @copyright Copyright 2010, Kai Dorschner
 * @license http://www.gnu.org/licenses/gpl.html GPLv3
 * @package mocovi
 * @subpackage controls
 */

/**
 * The root node of the preprocessed XML.
 *
 * It contains meta data about the current page like the authors name
 * the current language and the page title.
 *
 * @package mocovi
 * @subpackage controls
 */
class root_control extends Control
{
	/**
	 * @override
	 */
	protected function program()
	{
		$this->node->setAttribute('language',	Translator::getLanguage());
		$this->node->setAttribute('author',		$GLOBALS['filesystem']->getAuthor($GLOBALS['page']));
		$this->node->setAttribute('generated',	date('c'));
		$this->node->setAttribute('media',		$GLOBALS['media']);
		$this->node->setAttribute('basepath',	$GLOBALS['basepath']);
		$this->node->setAttribute('keywords',	$this->getKeywords());

		ControlFactory::createVirtual
			( 'lastmodified'
			, array()
			)
			->load
				(	ControlFactory::createVirtual
						( 'attribute'
						, array
							( 'name' => 'lastmodified'
							)
						)
					->load($this->node)
					->run()
				)->run()
			;
	}

	protected function getKeywords()
	{
		/*DomNodeList*/ $keywordNodeList = $GLOBALS['filesystem']->getKeywords($GLOBALS['page']);
		$keywords = array();
		foreach($keywordNodeList as $keyword)
			if(!$keyword->getAttribute('lang') || $keyword->getAttribute('lang') == Translator::getLanguage())
				$keywords[] = $keyword->nodeValue;
		return implode(',', $keywords);
	}
}