<?php
/**
*
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Config;

use Magento\Framework\Filesystem\DriverPool;
use Magento\Framework\Filesystem\File\ReadFactory;

/**
* Class FileIterator
* @api
* @since 100.0.2
*/
class FileIterator implements \Iterator, \Countable
{
/**
* Paths
*
* @var array
*/
protected $paths = [];

/**
* Position
*
* @var int
*/
protected $position;

/**
* File read factory
*
* @var ReadFactory
*/
protected $fileReadFactory;

/**
* Constructor
*
* @param ReadFactory $readFactory
* @param array $paths
*/
public function __construct(ReadFactory $readFactory, array $paths)
{
$this->fileReadFactory = $readFactory;
$this->paths = $paths;
$this->position = 0;
}

/**
* Rewind
*
* @return void
*/
public function rewind()
{
reset($this->paths);
}

/**
* Current
*
* @return string
*/
public function current()
{
$fileRead = $this->fileReadFactory->create($this->key(), DriverPool::FILE);
return $fileRead->readAll();
}

/**
* Key
*
* @return mixed
*/
public function key()
{
return current($this->paths);
}

/**
* Next
*
* @return void
*/
public function next()
{
next($this->paths);
}

/**
* Valid
*
* @return bool
*/
public function valid()
{
return (bool) $this->key();
}

/**
* Convert to an array
*
* @return array
*/
public function toArray()
{
$result = [];
foreach ($this as $item) {
$result[$this->key()] = $item;
}
return $result;
}

/**
* Count
*
* @return int
*/
public function count()
{
return count($this->paths);
}
}