<?php
/**
* @version	$Id: WidgetRouter.php 16253 2015-09-27 06:36:29Z alex $
* @package	Custom
* @copyright	Copyright (C) 1997 - 2015 Intechnic. All rights reserved.
* @license      GNU/GPL
* In-Portal is Open Source software.
* This means that this software may have been modified pursuant
* the GNU General Public License, and as distributed it includes
* or is derivative of works licensed under the GNU General Public License
* or other free or open source software licenses.
* See http://www.in-portal.org/license for copyright notices and details.
*/

defined('FULL_PATH') or die('restricted access!');

class WidgetRouter extends AbstractRouter
{

	/**
	 * Returns unit config's prefix, that is associated with this router.
	 *
	 * @return string
	 */
	public function getPrefix()
	{
		return 'widget';
	}

	/**
	 * Builds url part.
	 *
	 * @return boolean Return true to continue to next router; return false not to rewrite given prefix.
	 */
	protected function build()
	{
		$template = $this->getBuildTemplate();

		if ( $template == 'widgets/widget_detail' ) {
			// This is default template for this prefix, so don't add it to resulting url.
			$this->setBuildParam('pass_template', false);
		}

		$build_params = $this->extractBuildParams();

		if ( $build_params === false ) {
			return '';
		}

		$ret = array('', '');

		$filename = $this->getBuildParam('@filename');
		$this->setBuildParam('@filename');

		if ( $build_params[$this->buildPrefix . '_id'] > 0 ) {
			// Add id.
			if ( !$filename ) {
				$sql = 'SELECT Title
						FROM ' . TABLE_PREFIX . 'Widgets
						WHERE WidgetId = ' . $build_params[$this->buildPrefix . '_id'];
				$filename = $this->Conn->GetOne($sql);
			}

			$ret[0] .= 'widgets/' . $filename . '/';
		}
		elseif ( $build_params[$this->buildPrefix . '_Page'] > 1 ) {
			// Add page, only when ID is missing.
			$ret[1] .= $build_params[$this->buildPrefix . '_Page'] . '/';
		}

		$ret[0] = rtrim($ret[0], '/');
		$ret[1] = rtrim($ret[1], '/');

		return array_map('mb_strtolower', $ret);
	}

	/**
	 * Parses url part.
	 *
	 * @param array $url_parts Url parts to parse.
	 * @param array $params    Parameters, that are used for url building or created during url parsing.
	 *
	 * @return boolean Return true to continue to next router; return false to stop processing at this router.
	 */
	public function parse(array &$url_parts, array &$params)
	{
		$widget_id = 0;
		$widget_filename = '';
		$widget_index = array_search('widgets', $url_parts);

		if ( $widget_index !== false && isset($url_parts[$widget_index + 1]) ) {
			$widget_filename = $url_parts[$widget_index + 1];
		}

		if ( $widget_filename ) {
			$sql = 'SELECT WidgetId
					FROM ' . TABLE_PREFIX . 'Widgets
					WHERE Title = ' . $this->Conn->qstr($widget_filename);
			$widget_id = $this->Conn->GetOne($sql);

			if ( $widget_id ) {
				$params[$this->buildPrefix . '_id'] = $widget_id;
				$params[$this->buildPrefix . '_filename'] = $widget_filename;
				$params['pass'][] = $this->buildPrefix;

				$this->partParsed('widgets');
				$this->partParsed($widget_filename);
			}
		}

		if ( $widget_id && !$this->moreToParse() ) {
			// Widget was last url part - use default template.
			$params['t'] = 'widgets/widget_detail';
		}

		return true;
	}

}