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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
/**
* Helper that can convert relative paths from system.xml to absolute
*/
namespace Magento\Config\Model\Config\Structure\Mapper\Helper;
/**
* @api
* @since 100.0.2
*/
class RelativePathConverter
{
/**
* Convert relative path from system.xml to absolute
*
* @param string $nodePath
* @param string $relativePath
* @return string
* @throws \InvalidArgumentException
*/
public function convert($nodePath, $relativePath)
{
$nodePath = trim($nodePath);
$relativePath = trim($relativePath);
if (empty($nodePath) || empty($relativePath)) {
throw new \InvalidArgumentException('Invalid arguments');
}
$relativePathParts = explode('/', $relativePath);
$pathParts = explode('/', $nodePath);
$relativePartsCount = count($relativePathParts);
$pathPartsCount = count($pathParts);
if ($relativePartsCount === 1 && $pathPartsCount > 1) {
$relativePathParts = array_pad($relativePathParts, -$pathPartsCount, '*');
}
$realPath = [];
foreach ($relativePathParts as $index => $path) {
if ($path === '*') {
if (false == array_key_exists($index, $pathParts)) {
throw new \InvalidArgumentException(
sprintf('Invalid relative path %s in %s node', $relativePath, $nodePath)
);
}
$path = $pathParts[$index];
}
$realPath[$index] = $path;
}
return implode('/', $realPath);
}
}