<?php
/**
* @package Mambo
* @subpackage Banners
* @author Mambo Foundation Inc see README.php
* @copyright Mambo Foundation Inc.
* See COPYRIGHT.php for copyright notices and details.
* @license GNU/GPL Version 2, see LICENSE.php
* Mambo 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; version 2 of the License.
*/

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

$bid = intval( mosGetParam( $_REQUEST, 'bid', 0 ) );

$task	= mosGetParam( $_REQUEST, "task", "" );
switch($task)
{
	case "click":
	clickbanner( $bid );
	break;
	
	default:
	viewbanner( $mainframe->getCfg( 'live_site' ));
	break;
}

function viewbanner( $_live_site) {
	global $database, $mosConfig_live_site;
	
	$database->setQuery( "SELECT count(*) AS numrows FROM #__banner WHERE showBanner=1" );
	
	$numrows = $database->loadResult();
	if ($numrows === null) {
		echo $database->stderr( true );
		return;
	}
	
	if ($numrows > 1) {
		mt_srand( (double) microtime()*1000000 );
		$bannum = mt_rand( 0, --$numrows );
	} else {
		$bannum = 0;
	}
	
	$database->setQuery( "SELECT * FROM #__banner WHERE showBanner=1 LIMIT $bannum,1" );
	
	$banner = null;
	if ($database->loadObject( $banner )) {
		$database->setQuery( "UPDATE #__banner SET impmade=impmade+1 WHERE bid='$banner->bid'" );
		if(!$database->query()) {
			echo $database->stderr( true );
			return;
		}
		$banner->impmade++;
		
		if ($numrows > 0) {
			// Check if this impression is the last one and print the banner
			if ($banner->imptotal == $banner->impmade) {
				$query = "INSERT INTO #__bannerfinish (cid, type, name, impressions, clicks, imageurl, datestart, dateend)
					VALUES ('$banner->cid', '$banner->type', '$banner->name', '$banner->impmade', '$banner->clicks', '$banner->imageurl', '$banner->date', now())";
				$database->setQuery($query);
				if(!$database->query()) {
					die($database->stderr(true));
				}
				
				$query="DELETE FROM #__banner WHERE bid=$banner->bid";
				$database->setQuery($query);
				if(!$database->query()) {
					die($database->stderr(true));
				}
			}

			if (trim( $banner->custombannercode )) {
				echo $banner->custombannercode;
			} else if (eregi( "(\.bmp|\.gif|\.jpg|\.jpeg|\.png)$", $banner->imageurl )) {
				$imageurl = "$mosConfig_live_site/images/banners/$banner->imageurl";
				echo "<a href=\"".sefRelToAbs("index.php?option=com_banners&amp;task=click&amp;bid=$banner->bid")."\" target=\"_blank\"><img src=\"$imageurl\" border=\"0\" alt=\"Advertisement\" /></a>";
				
			} else if (eregi("\.swf$", $banner->imageurl)) {
				$imageurl = "$mosConfig_live_site/images/banners/".$banner->imageurl;
				echo "<object classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" codebase=\"http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0\" border=\"5\">
						<param name=\"movie\" value=\"$imageurl\"><embed src=\"$imageurl\" loop=\"false\" pluginspage=\"http://www.macromedia.com/go/get/flashplayer\" type=\"application/x-shockwave-flash\"></embed></object>";
			}
		}
	} else {
		echo "&nbsp;";
	}
}

/**
/* Function to redirect the clicks to the correct url and add 1 click
*/
function clickbanner( $bid  )
{
	global $database, $mainframe;
	require_once( $mainframe->getPath( 'class' ) );
	$row = new mosBanner($database);
	$row->load($bid);
	$row->clicks();
	
	$pat = "http.*://";
	if (!eregi( $pat, $row->clickurl )) {
		$clickurl = "http://$row->clickurl";
	} else {
		$clickurl = $row->clickurl;
	}
	mosRedirect( $clickurl );
}
?>
