<?php

/*
* This file is part of the Behat Gherkin.
* (c) Konstantin Kudryashov <ever.zet@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Behat\Gherkin\Loader;

use Behat\Gherkin\Gherkin;
use Behat\Gherkin\Node\FeatureNode;
use RecursiveDirectoryIterator;
use RecursiveIteratorIterator;

/**
* Directory contents loader.
*
* @author Konstantin Kudryashov <ever.zet@gmail.com>
*/
class DirectoryLoader extends AbstractFileLoader
{
protected $gherkin;

/**
* Initializes loader.
*
* @param Gherkin $gherkin Gherkin manager
*/
public function __construct(Gherkin $gherkin)
{
$this->gherkin = $gherkin;
}

/**
* Checks if current loader supports provided resource.
*
* @param mixed $path Resource to load
*
* @return bool
*/
public function supports($path)
{
return is_string($path)
&& is_dir($this->findAbsolutePath($path));
}

/**
* Loads features from provided resource.
*
* @param string $path Resource to load
*
* @return FeatureNode[]
*/
public function load($path)
{
$path = $this->findAbsolutePath($path);

$iterator = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::SKIP_DOTS)
);
$paths = array_map('strval', iterator_to_array($iterator));
uasort($paths, 'strnatcasecmp');

$features = array();

foreach ($paths as $path) {
$path = (string) $path;
$loader = $this->gherkin->resolveLoader($path);

if (null !== $loader) {
$features = array_merge($features, $loader->load($path));
}
}

return $features;
}
}