<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
declare(strict_types=1);

namespace Magento\Framework\GraphQl\Config\Element;

use Magento\Framework\GraphQl\Config\ConfigElementFactoryInterface;
use Magento\Framework\GraphQl\Config\ConfigElementInterface;
use Magento\Framework\ObjectManagerInterface;

/**
* Factory for config elements of 'interface' type.
*/
class InterfaceFactory implements ConfigElementFactoryInterface
{
/**
* @var ObjectManagerInterface
*/
private $objectManager;

/**
* @var ArgumentFactory
*/
private $argumentFactory;
/**
* @var FieldFactory
*/
private $fieldFactory;

/**
* @param ObjectManagerInterface $objectManager
* @param ArgumentFactory $argumentFactory
* @param FieldFactory $fieldFactory
*/
public function __construct(
ObjectManagerInterface $objectManager,
ArgumentFactory $argumentFactory,
FieldFactory $fieldFactory
) {
$this->objectManager = $objectManager;
$this->argumentFactory = $argumentFactory;
$this->fieldFactory = $fieldFactory;
}

/**
* Instantiate an object representing 'interface' GraphQL config element.
*
* @param array $data
* @return ConfigElementInterface
*/
public function createFromConfigData(array $data): ConfigElementInterface
{
$fieldsData = $data['fieldsInQuery'] ?? ($data['fields'] ?? []);
$fields = [];
foreach ($fieldsData as $field) {
$arguments = [];
foreach ($field['arguments'] as $argument) {
$arguments[$argument['name']] = $this->argumentFactory->createFromConfigData($argument);
}
$fields[$field['name']] = $this->fieldFactory->createFromConfigData($field, $arguments);
}
return $this->create($data, $fields);
}

/**
* Create interface object based off array of configured GraphQL Output/InputInterface.
*
* Interface data must contain name, type resolver, and field definitions. The type resolver should point to an
* implementation of the TypeResolverInterface that decides what concrete GraphQL type to output. Description is
* the only optional field.
*
* @param array $interfaceData
* @param array $fields
* @return InterfaceType
*/
public function create(
array $interfaceData,
array $fields
) : InterfaceType {
return $this->objectManager->create(
InterfaceType::class,
[
'name' => $interfaceData['name'],
'typeResolver' => $interfaceData['typeResolver'],
'fields' => $fields,
'description' => isset($interfaceData['description']) ? $interfaceData['description'] : ''
]
);
}
}