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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Paypal\Model\Config\Rules;
use Magento\Framework\Config\ConverterInterface;
/**
* Class Converter
*/
class Converter implements ConverterInterface
{
/**
* Convert dom document
*
* @param \DOMDocument $source
* @return array
*/
public function convert($source)
{
$result = [];
if ($source->documentElement->hasChildNodes()) {
/** @var \DOMElement $child */
foreach ($source->documentElement->childNodes as $child) {
if ($this->hasNodeElement($child)) {
$id = $child->getAttribute('id');
$result[$id] = [
'events' => [],
'relations' => []
];
/** @var \DOMElement $paymentChild */
foreach ($child->childNodes as $paymentChild) {
switch ($paymentChild->nodeName) {
case 'events':
$selector = $paymentChild->getAttribute('selector');
$result[$id]['events'][$selector] = $this->createEvents($paymentChild);
break;
case 'relation':
$result[$id]['relations'] += $this->createRelation($paymentChild);
break;
}
}
}
}
}
return $result;
}
/**
* Creating events
*
* @param \DOMElement $node
* @return array
*/
protected function createEvents(\DOMElement $node)
{
$result = [];
foreach ($node->childNodes as $child) {
/** @var \DOMElement $child */
if ($this->hasNodeElement($child)) {
$result[$child->getAttribute('name')] = [
'value' => $child->getAttribute('value'),
'include' => $child->getAttribute('include'),
'predicate' => $this->createPredicate($child),
];
}
}
return $result;
}
/**
* Creating configuration for function predicate
*
* @param \DOMElement $node
* @return array
*/
protected function createPredicate(\DOMElement $node)
{
$result = [];
foreach ($node->childNodes as $child) {
/** @var \DOMElement $child */
if ($this->hasNodeElement($child)) {
$result = [
'name' => $child->getAttribute('name'),
'message' => __($child->getAttribute('message')),
'event' => $child->getAttribute('event'),
'argument' => $this->createArgument($child),
];
}
}
return $result;
}
/**
* Creating relationships
*
* @param \DOMElement $node
* @return array
*/
protected function createRelation(\DOMElement $node)
{
$result = [];
foreach ($node->childNodes as $child) {
/** @var \DOMElement $child */
if ($this->hasNodeElement($child)) {
$result[$child->getAttribute('type')][] = [
'event' => $child->getAttribute('event'),
'argument' => $this->createArgument($child),
];
}
}
return [$node->getAttribute('target') => $result];
}
/**
* Create argument
*
* @param \DOMElement $node
* @return array
*/
protected function createArgument(\DOMElement $node)
{
$result = [];
foreach ($node->childNodes as $child) {
/** @var \DOMElement $child */
if ($this->hasNodeElement($child)) {
$result[$child->getAttribute('name')] = $child->textContent;
}
}
return $result;
}
/**
* Check whether the node has DOMElement
*
* @param \DOMNode $node
* @return bool
*/
protected function hasNodeElement(\DOMNode $node)
{
switch ($node->nodeType) {
case XML_TEXT_NODE:
case XML_COMMENT_NODE:
case XML_CDATA_SECTION_NODE:
return false;
}
return true;
}
}