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

use Magento\Framework\App\Filesystem\DirectoryList;
use Magento\Framework\Component\ComponentRegistrar;
use Magento\Framework\Component\ComponentRegistrarInterface;

/**
* Theme Customization Path
*/
class Path
{
/**
* Customization directory name
*/
const DIR_NAME = 'theme_customization';

/**
* File name
*
* @var string
*/
protected $filename;

/**
* File system
*
* @var \Magento\Framework\Filesystem
*/
protected $filesystem;

/**
* Media directory read
*
* @var \Magento\Framework\Filesystem\Directory\Read
*/
protected $mediaDirectoryRead;

/**
* Component registrar
*
* @var ComponentRegistrarInterface
*/
private $componentRegistrar;

/**
* Constructor
*
* @param \Magento\Framework\Filesystem $filesystem
* @param ComponentRegistrarInterface $componentRegistrar
* @param string $filename
*/
public function __construct(
\Magento\Framework\Filesystem $filesystem,
ComponentRegistrarInterface $componentRegistrar,
$filename = \Magento\Framework\View\ConfigInterface::CONFIG_FILE_NAME
) {
$this->filesystem = $filesystem;
$this->filename = $filename;
$this->mediaDirectoryRead = $this->filesystem->getDirectoryRead(DirectoryList::MEDIA);
$this->componentRegistrar = $componentRegistrar;
}

/**
* Returns customization absolute path
*
* @param \Magento\Framework\View\Design\ThemeInterface $theme
* @return string|null
*/
public function getCustomizationPath(\Magento\Framework\View\Design\ThemeInterface $theme)
{
$path = null;
if ($theme->getId()) {
$path = $this->mediaDirectoryRead->getAbsolutePath(self::DIR_NAME . '/' . $theme->getId());
}
return $path;
}

/**
* Get directory where themes files are stored
*
* @param \Magento\Framework\View\Design\ThemeInterface $theme
* @return string|null
*/
public function getThemeFilesPath(\Magento\Framework\View\Design\ThemeInterface $theme)
{
$path = null;
if ($theme->getFullPath()) {
$path = $this->componentRegistrar->getPath(ComponentRegistrar::THEME, $theme->getFullPath());
}
return $path;
}

/**
* Get path to custom view configuration file
*
* @param \Magento\Framework\View\Design\ThemeInterface $theme
* @return string|null
*/
public function getCustomViewConfigPath(\Magento\Framework\View\Design\ThemeInterface $theme)
{
$path = null;
if ($theme->getId()) {
$path = $this->mediaDirectoryRead->getAbsolutePath(
self::DIR_NAME . '/' . $theme->getId() . '/' . $this->filename
);
}
return $path;
}
}