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

class QueryParamsResolver extends \Magento\Framework\DataObject implements QueryParamsResolverInterface
{
/**
* {@inheritdoc}
*/
public function getQuery($escape = false)
{
if (!$this->hasData('query')) {
$query = '';
$params = $this->getQueryParams();
if (is_array($params)) {
ksort($params);
$query = http_build_query($params, '', $escape ? '&amp;' : '&');
}
$this->setData('query', $query);
}
return $this->_getData('query');
}

/**
* {@inheritdoc}
*/
public function setQuery($data)
{
if ($this->_getData('query') !== $data) {
$this->unsetData('query_params');
$this->setData('query', $data);
}
return $this;
}

/**
* {@inheritdoc}
*/
public function setQueryParam($key, $data)
{
$params = $this->getQueryParams();
if (isset($params[$key]) && $params[$key] == $data) {
return $this;
}
$params[$key] = $data;
$this->unsetData('query');
$this->setData('query_params', $params);
return $this;
}

/**
* {@inheritdoc}
*/
public function getQueryParams()
{
if (!$this->hasData('query_params')) {
$params = [];
if ($this->_getData('query')) {
foreach (explode('&', $this->_getData('query')) as $param) {
$paramArr = explode('=', $param);
$params[$paramArr[0]] = urldecode($paramArr[1]);
}
}
$this->setData('query_params', $params);
}
return $this->_getData('query_params');
}

/**
* {@inheritdoc}
*/
public function setQueryParams(array $data)
{
return $this->setData('query_params', $data);
}

/**
* {@inheritdoc}
*/
public function addQueryParams(array $data)
{
$this->unsetData('query');

if ($this->_getData('query_params') == $data) {
return $this;
}

$params = $this->_getData('query_params');
if (!is_array($params)) {
$params = [];
}
foreach ($data as $param => $value) {
$params[$param] = $value;
}
$this->setData('query_params', $params);

return $this;
}
}