helper.php

<?php
/**
 * @package     Joomla.Site
 * @subpackage  mod_kickintro
 *
 * @author      Niels Nübel <[email protected]>
 * @copyright   Copyright (c) 2013-2016 niels-nuebel.de
 * @license     GNU General Public License version 2 or later
 */

jimport('joomla.filesystem.file');
jimport('joomla.filesystem.folder');

/**
 * Helper for mod_feed
 *
 * @package     Joomla.Site
 * @subpackage  mod_kickintro
 * @since       3.6
 */
class ModKickIntroHelper
{
	private static $jsPath          = 'media/mod_kickintro/js';
	private static $jsFilePrefix    = '/kickintro-';


	public static function addScript($module_id, $params)
	{
		if (!file_exists(self::$jsPath))
		{
			JFolder::create(self::$jsPath, 0755);
		}

		$doc = JFactory::getDocument();

		$script = array();

		$script[] = 'alert("bla");';

		$filename = self::$jsPath . self::$jsFilePrefix . $module_id . '.js';

		$filecontent = file_get_contents($filename);

		$javascriptText = implode("\n", $script);
		
		if($filecontent != $javascriptText)
		{
			if (!JFile::write($filename, $javascriptText))
			{
				return false;
			}
		}

		$doc->addScriptVersion($filename);
	}
}