<?php

defined( '_JEXEC' ) or die( 'Restricted access' );

jimport('joomla.database.database');
jimport('joomla.environment.request');
jimport('joomla.error.log');

function OpenaireBuildRoute(&$query) {
	$segments = array();
	$cache =& JFactory :: getCache();
	$log =& JLog :: getInstance();

	if (isset($query['view']) && ($query['view'] != '')) {
		$segments[0] = $query['view'];
		unset($query['view']);
	} else
		$segments[0] = 'default';
	if (isset($query['layout']) && ($query['layout'] != '')) {
		$segments[1] = $query['layout'];
		unset($query['layout']);
	} else
		$segments[1] = 'default';
	if (isset($query['Itemid']) && ($query['Itemid'] != '')) {
		$segments[2] = $query['Itemid'];
		unset($query['Itemid']);
	} else
		$segments[2] = 0;

	if (JDEBUG)
		$log -> addEntry(array('level' => 'debug', 'comment' => ('Building route view = ' . $segments[0] . ', layout = ' . $segments[1] . ', Itemid = ' . $segments[2])));

	if (($segments[0] == 'default') && ($segments[2] != 0))
		list($segments[0], $segments[1]) = $cache -> call('_resolveViewAndLayoutByItemId', $segments[2]);
	else if (($segments[0] != 'default') && ($segments[2] == 0))
		$segments[2] = $cache -> call('_resolveItemIdByViewAndLayout', $segments[0], $segments[1]);

	if (JDEBUG)
		$log -> addEntry(array('level' => 'debug', 'comment' => ('Built route view = ' . $segments[0] . ', layout = ' . $segments[1] . ', Itemid = ' . $segments[2])));

	return $segments;
}

function OpenaireParseRoute($segments) {
	$query = array();
	
	if (JRequest::getVar('option', '', 'post') != '' && JRequest::getVar('option', '', 'post') != 'com_openaire') {
		foreach (array('option', 'view', 'itemId', 'task', 'layout') as $param) {
			$query[$param] = JRequest::getVar($param, '', 'post');
		}
	} else {	
		$cache =& JFactory :: getCache();
		$log =& JLog :: getInstance();

		if (isset($segments[0]) && ($segments[0] != ''))
			$query['view'] = $segments[0];
		else
			$query['view'] = 'default';
		if (isset($segments[1]) && ($segments[1] != ''))
			$query['layout'] = $segments[1];
		else
			$query['layout'] = 'default';
		if (isset($segments[2]) && ($segments[2] != ''))
			$query['Itemid'] = $segments[2];
		else
			$query['Itemid'] = 0;

		if (JDEBUG)
			$log -> addEntry(array('level' => 'debug', 'comment' => ('Parsing route view = ' . $query['view'] . ', layout = ' . $query['layout'] . ', Itemid = ' . $query['Itemid'])));

		if (($query['view'] == 'default') && ($query['Itemid'] != 0))
			list($query['view'], $query['layout']) = $cache -> call('_resolveViewAndLayoutByItemId', $query['Itemid']);
		else if (($query['view'] != 'default') && ($query['Itemid'] == 0))
			$query['Itemid'] = $cache -> call('_resolveItemIdByViewAndLayout', $query['view'], $query['layout']);

		if (JDEBUG)
			$log -> addEntry(array('level' => 'debug', 'comment' => ('Parsed route view = ' . $query['view'] . ', layout = ' . $query['layout'] . ', Itemid = ' . $query['Itemid'])));

		JRequest :: setVar('option', 'com_openaire');
		JRequest :: setVar('view', $query['view']);
		JRequest :: setVar('layout', $query['layout']);
		JRequest :: setVar('Itemid', $query['Itemid']);
	}
	
	return $query;
}

function _resolveViewAndLayoutByItemId($itemId) {
	if (JDEBUG)
		JLog :: getInstance() -> addEntry(array('level' => 'debug', 'comment' => 'Resolving view and layout by Itemid = ' . $itemId));

	$view = 'default';
	$layout = 'default';
	$db =& JFactory :: getDBO();

	$db -> setQuery('SELECT ' . $db -> nameQuote('link') . ' FROM ' . $db -> nameQuote('#__menu') . ' WHERE ' . $db -> nameQuote('id') . ' = ' . $db -> quote($itemId));
	if (preg_match("/index\.php\?(.+)/", $db -> loadResult(), $matches)) { // query string found
		foreach (explode('&', $matches[0]) as $parameter) {
			list($name, $value) = explode('=', $parameter);
			switch ($name) {
			case 'view':
				$view = $value;
				break;
			case 'layout':
				$layout = $value;
			}
		}
	}

	return array($view, $layout);
}

function _resolveItemIdByViewAndLayout($view, $layout = 'default') {
	if (JDEBUG)
		JLog :: getInstance() -> addEntry(array('level' => 'debug', 'comment' => ('Resolving Itemid by view = ' . $view . ' and layout = ' . $layout)));

	$itemId = 0;
	$db =& JFactory :: getDBO();

	$db -> setQuery('SELECT ' . $db -> nameQuote('id') . ' FROM ' . $db -> nameQuote('#__menu') . ' WHERE ' . $db -> nameQuote('link') . ' = ' . $db -> quote('index.php?option=com_openaire&view=' . $view . (($layout != 'default') ? ('&layout=' . $layout) : '')));
	$itemId = $db -> loadResult();

	return $itemId;
}

?>