<?php
/**
* @package Mambo Open Source
* @copyright (C) 2005 - 2006 Mambo Foundation Inc.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
*
* Mambo was originally developed by Miro (www.miro.com.au) in 2000. Miro assigned the copyright in Mambo to The Mambo Foundation in 2005 to ensure
* that Mambo remained free Open Source software owned and managed by the community.
* Mambo is Free Software
*/ 

/** ensure this file is being included by a parent file */
defined( '_VALID_MOS' ) or die( 'Direct Access to this location is not allowed.' );

$_MAMBOTS->registerFunction( 'onPrepareContent', 'botMosLoadPosition' );

/**
* Mambot that loads module positions within content
*/
function botMosLoadPosition( $published, &$row, &$cparams, $page=0, $params ) {
	global $database;
	
 	// expression to search for
 	$regex = '/{mosloadposition\s*.*?}/i';
  	
	if (is_callable(array($row, 'getText'))) $localtext = $row->getText();
	else $localtext = $row->text;
 	// find all instances of mambot and put in $matches
	preg_match_all( $regex, $localtext, $matches );
	
	// Number of mambots
 	$count = count( $matches[0] );

 	// mambot only processes if there are any instances of the mambot in the text
 	if ( $count ) {
	 		
	 	$style	= $params->def( 'style', -2 );

 		processPositions( $localtext, $matches, $count, $regex, $style );
	}
	// Save the results of processing
	if (is_callable(array($row, 'saveText'))) $row->saveText($localtext);
	else $row->text = $localtext;

}

function processPositions ( &$text, &$matches, $count, $regex, $style ) {
	global $database;
	
	$query = "SELECT position"
	. "\n FROM #__template_positions"
	. "\n ORDER BY position"
	;
	$database->setQuery( $query );
 	$positions 	= $database->loadResultArray();

 	for ( $i=0; $i < $count; $i++ ) {
 		$load = str_replace( 'mosloadposition', '', $matches[0][$i] );
 		$load = str_replace( '{', '', $load );
 		$load = str_replace( '}', '', $load );
 		$load = trim( $load );
		
		foreach ( $positions as $position ) {
	 		if ( $position == @$load ) {		 			
				$modules	= loadPosition( $load, $style );					
				$text 	= preg_replace( '{'. $matches[0][$i] .'}', $modules, $text );
				break;			
	 		}	 			
 		}
 	}

  	// removes tags without matching module positions
	$text = preg_replace( $regex, '', $text );
}

function loadPosition( $position, $style=-2 ) {
	$modules = '';
	if ( mosCountModules( $position ) ) {
		ob_start();
		mosLoadModules ( $position, $style );
		$modules = ob_get_contents();
		ob_end_clean();
	}

	return $modules;
}

