<?php

/**

 * CodeIgniter

 *

 * An open source application development framework for PHP

 *

 * This content is released under the MIT License (MIT)

 *

 * Copyright (c) 2014 - 2017, British Columbia Institute of Technology

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 *

 * @package	CodeIgniter

 * @author	EllisLab Dev Team

 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)

 * @copyright	Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/)

 * @license	http://opensource.org/licenses/MIT	MIT License

 * @link	https://codeigniter.com

 * @since	Version 1.0.0

 * @filesource

 */

defined('BASEPATH') OR exit('No direct script access allowed');



/**

 * CodeIgniter Directory Helpers

 *

 * @package		CodeIgniter

 * @subpackage	Helpers

 * @category	Helpers

 * @author		EllisLab Dev Team

 * @link		https://codeigniter.com/user_guide/helpers/directory_helper.html

 */



// ------------------------------------------------------------------------



if ( ! function_exists('directory_map'))

{

	/**

	 * Create a Directory Map

	 *

	 * Reads the specified directory and builds an array

	 * representation of it. Sub-folders contained with the

	 * directory will be mapped as well.

	 *

	 * @param	string	$source_dir		Path to source

	 * @param	int	$directory_depth	Depth of directories to traverse

	 *						(0 = fully recursive, 1 = current dir, etc)

	 * @param	bool	$hidden			Whether to show hidden files

	 * @return	array

	 */

	function directory_map($source_dir, $directory_depth = 0, $hidden = FALSE)

	{

		if ($fp = @opendir($source_dir))

		{

			$filedata	= array();

			$new_depth	= $directory_depth - 1;

			$source_dir	= rtrim($source_dir, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;



			while (FALSE !== ($file = readdir($fp)))

			{

				// Remove '.', '..', and hidden files [optional]

				if ($file === '.' OR $file === '..' OR ($hidden === FALSE && $file[0] === '.'))

				{

					continue;

				}



				is_dir($source_dir.$file) && $file .= DIRECTORY_SEPARATOR;



				if (($directory_depth < 1 OR $new_depth > 0) && is_dir($source_dir.$file))

				{

					$filedata[$file] = directory_map($source_dir.$file, $new_depth, $hidden);

				}

				else

				{

					$filedata[] = $file;

				}

			}



			closedir($fp);

			return $filedata;

		}



		return FALSE;

	}

}

