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

namespace Magento\Framework\Logger\Handler;

use Magento\Framework\Filesystem\DriverInterface;
use Monolog\Formatter\LineFormatter;
use Monolog\Handler\StreamHandler;
use Monolog\Logger;

/**
* Base stream handler
*/
class Base extends StreamHandler
{
/**
* @var string
*/
protected $fileName;

/**
* @var int
*/
protected $loggerType = Logger::DEBUG;

/**
* @var DriverInterface
*/
protected $filesystem;

/**
* @param DriverInterface $filesystem
* @param string $filePath
* @param string $fileName
* @throws \Exception
*/
public function __construct(
DriverInterface $filesystem,
$filePath = null,
$fileName = null
) {
$this->filesystem = $filesystem;
if (!empty($fileName)) {
$this->fileName = $this->sanitizeFileName($fileName);
}
parent::__construct(
$filePath ? $filePath . $this->fileName : BP . DIRECTORY_SEPARATOR . $this->fileName,
$this->loggerType
);

$this->setFormatter(new LineFormatter(null, null, true));
}

/**
* Remove dots from file name
*
* @param string $fileName
* @return string
* @throws \InvalidArgumentException
*/
private function sanitizeFileName($fileName)
{
if (!is_string($fileName)) {
throw new \InvalidArgumentException('Filename expected to be a string');
}

$parts = explode('/', $fileName);
$parts = array_filter($parts, function ($value) {
return !in_array($value, ['', '.', '..']);
});

return implode('/', $parts);
}

/**
* @inheritDoc
*/
public function write(array $record)
{
$logDir = $this->filesystem->getParentDirectory($this->url);
if (!$this->filesystem->isDirectory($logDir)) {
$this->filesystem->createDirectory($logDir);
}

parent::write($record);
}
}