<?php

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 Rob Dunham
 *
 * 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.
 */

/**
 * Simple Recursive Autoloader
 *
 * A simple autoloader that loads class files recursively starting in the directory
 * where this class resides.  Additional options can be provided to control the naming
 * convention of the class files.
 *
 * @package Autoloader
 * @license http://opensource.org/licenses/MIT  MIT License
 * @author  Rob Dunham <contact@robunham.info>
 * @author  Alex Lushpai <lushpai@gmail.com>
 */
class Autoloader
{
    /**
     * File extension as a string. Defaults to ".php".
     */
    protected static $fileExt = '.php';

    /**
     * The top level directory where recursion will begin.
     *
     */
    protected static $pathTop;

    /**
     * Autoload function for registration with spl_autoload_register
     *
     * Looks recursively through project directory and loads class files based on
     * filename match.
     *
     * @param string $className
     */
    public static function loader($className)
    {
        $directory = new RecursiveDirectoryIterator(self::$pathTop);
        $fileIterator = new RecursiveIteratorIterator($directory);
        $filename = $className . self::$fileExt;

        foreach ($fileIterator as $file) {
            if (strtolower($file->getFilename()) === strtolower($filename) && $file->isReadable()) {
                include_once $file->getPathname();
            }
        }

    }

    /**
     * Sets the $fileExt property
     *
     * @param string $fileExt The file extension used for class files.  Default is "php".
     */
    public static function setFileExt($fileExt)
    {
        self::$fileExt = $fileExt;
    }

    /**
     * Sets the $path property
     *
     * @param string $path The path representing the top level where recursion should
     *                     begin. Defaults to the current directory.
     */
    public static function setPath($path)
    {
        self::$pathTop = $path;
    }

}

Autoloader::setPath(realpath(dirname(__FILE__)));
Autoloader::setFileExt('.php');
spl_autoload_register('Autoloader::loader');