<?php
/**
 * @version   $Id$
 * @package   Joomla
 * @copyright Copyright (C) 2005 Open Source Matters. All rights reserved.
 * @license   http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
 *            Joomla! is free software. This version may have been modified pursuant
 *            to 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 COPYRIGHT.php for copyright notices and details.
 */

// no direct access
defined('_VALID_MOS') or die('Restricted access');

global $mosConfig_absolute_path, $mosConfig_live_site;

$type = $params->get('type', 'jpg');
$folder = $params->get('folder');
$link = $params->get('link');
$width = $params->get('width');
$height = $params->get('height');
$the_array = array();
$the_image = array();

// if folder includes livesite info, remove
if (strpos($folder, $mosConfig_live_site) === 0)
{
	$folder = str_replace($mosConfig_live_site, '', $folder);
}
// if folder includes absolute path, remove
if (strpos($folder, $mosConfig_absolute_path) === 0)
{
	$folder = str_replace($mosConfig_absolute_path, '', $folder);
}
// if folder doesnt contain slash to start, add
if (strpos($folder, '/') !== 0)
{
	$folder = '/' . $folder;
}
// construct absolute path to directory
$abspath_folder = $mosConfig_absolute_path . $folder;

// check if directory exists
if (is_dir($abspath_folder))
{
	if ($handle = opendir($abspath_folder))
	{
		while (false !== ($file = readdir($handle)))
		{
			if ($file != '.' && $file != '..' && $file != 'CVS' && $file != 'index.html')
			{
				$the_array[] = $file;
			}
		}
	}
	closedir($handle);

	foreach ($the_array as $img)
	{
		if (!is_dir($abspath_folder . '/' . $img))
		{
			if (eregi($type, $img))
			{
				$the_image[] = $img;
			}
		}
	}

	if (!$the_image)
	{
		echo _NO_IMAGES;
	}
	else
	{
		$i = count($the_image);
		$random = mt_rand(0, $i - 1);
		$image_name = $the_image[$random];
		$abspath_image = $abspath_folder . '/' . $image_name;
		$size = getimagesize($abspath_image);

		if ($width == '')
		{
			($size[0] > 100 ? $width = 100 : $width = $size[0]);
		}
		if ($height == '')
		{
			$coeff = $size[0] / $size[1];
			$height = (int) ($width / $coeff);
		}

		$image = $mosConfig_live_site . $folder . '/' . $image_name;
		?>
		<div align="center">
			<?php
			if ($link) {
			?>
			<a href="<?php echo $link; ?>" target="_self">
				<?php
				}
				?>
				<img src="<?php echo $image; ?>" border="0" width="<?php echo $width; ?>"
				     height="<?php echo $height; ?>" alt="<?php echo $image_name; ?>"/><br/>
				<?php
				if ($link) {
				?>
			</a>
		<?php
		}
		?>
		</div>
	<?php
	}
}
