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

use Magento\Framework\Data\Tree\Node;
use Magento\Framework\Data\Tree\Node\Collection as NodeCollection;

/**
* Data tree
*
* @api
* @author Magento Core Team <core@magentocommerce.com>
* @since 100.0.2
*/
class Tree
{
/**
* Nodes collection
*
* @var NodeCollection
*/
protected $_nodes;

/**
* Enter description here...
*
*/
public function __construct()
{
$this->_nodes = new NodeCollection($this);
}

/**
* Enter description here...
*
* @return \Magento\Framework\Data\Tree
*/
public function getTree()
{
return $this;
}

/**
* Enter description here...
*
* @param Node $parentNode
* @return void
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function load($parentNode = null)
{
}

/**
* Enter description here...
*
* @param int|string $nodeId
* @return void
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function loadNode($nodeId)
{
}

/**
* Append child
*
* @param array|Node $data
* @param Node $parentNode
* @param Node $prevNode
* @return Node
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function appendChild($data, $parentNode, $prevNode = null)
{
if (is_array($data)) {
$node = $this->addNode(new Node($data, $parentNode->getIdField(), $this), $parentNode);
} elseif ($data instanceof Node) {
$node = $this->addNode($data, $parentNode);
}
return $node;
}

/**
* Add node
*
* @param Node $node
* @param Node $parent
* @return Node
*/
public function addNode($node, $parent = null)
{
$this->_nodes->add($node);
$node->setParent($parent);
if ($parent !== null && $parent instanceof Node) {
$parent->addChild($node);
}
return $node;
}

/**
* Move node
*
* @param Node $node
* @param Node $parentNode
* @param Node $prevNode
* @return void
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function moveNodeTo($node, $parentNode, $prevNode = null)
{
}

/**
* Copy node
*
* @param Node $node
* @param Node $parentNode
* @param Node $prevNode
* @return void
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function copyNodeTo($node, $parentNode, $prevNode = null)
{
}

/**
* Remove node
*
* @param Node $node
* @return $this
*/
public function removeNode($node)
{
$this->_nodes->delete($node);
if ($node->getParent()) {
$node->getParent()->removeChild($node);
}
unset($node);
return $this;
}

/**
* Create node
*
* @param Node $parentNode
* @param Node $prevNode
* @return void
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function createNode($parentNode, $prevNode = null)
{
}

/**
* Get child
*
* @param Node $node
* @return void
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function getChild($node)
{
}

/**
* Get children
*
* @param Node $node
* @return void
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function getChildren($node)
{
}

/**
* Enter description here...
*
* @return NodeCollection
*/
public function getNodes()
{
return $this->_nodes;
}

/**
* Enter description here...
*
* @param Node $nodeId
* @return Node
*/
public function getNodeById($nodeId)
{
return $this->_nodes->searchById($nodeId);
}

/**
* Get path
*
* @param Node $node
* @return array
*/
public function getPath($node)
{
if ($node instanceof Node) {
} elseif (is_numeric($node)) {
if ($_node = $this->getNodeById($node)) {
return $_node->getPath();
}
}
return [];
}
}