<?php
namespace Swissup\CheckoutFields\Controller\Adminhtml\Field;

use Magento\Framework\Exception\AlreadyExistsException;
use Magento\Framework\Controller\ResultFactory;

class Save extends \Magento\Catalog\Controller\Adminhtml\Product\Attribute
{
/**
* Admin resource
*/
const ADMIN_RESOURCE = 'Swissup_CheckoutFields::checkoutfields';

/**
* @var \Swissup\CheckoutFields\Model\FieldFactory
*/
protected $fieldFactory;

/**
* Constructor
*
* @param \Magento\Backend\App\Action\Context $context
* @param \Magento\Framework\Cache\FrontendInterface $attributeLabelCache
* @param \Magento\Framework\Registry $coreRegistry
* @param \Magento\Framework\View\Result\PageFactory $resultPageFactory
* @param \Swissup\CheckoutFields\Model\FieldFactory $fieldFactory
*/
public function __construct(
\Magento\Backend\App\Action\Context $context,
\Magento\Framework\Cache\FrontendInterface $attributeLabelCache,
\Magento\Framework\Registry $coreRegistry,
\Magento\Framework\View\Result\PageFactory $resultPageFactory,
\Swissup\CheckoutFields\Model\FieldFactory $fieldFactory
) {
$this->fieldFactory = $fieldFactory;
parent::__construct($context, $attributeLabelCache, $coreRegistry, $resultPageFactory);
}

/**
* @return \Magento\Backend\Model\View\Result\Redirect
*/
public function execute()
{
$data = $this->getRequest()->getPostValue();
if ($data) {
$this->preprocessOptionsData($data);
$fieldId = $this->getRequest()->getParam('field_id');
$attributeCode = $this->getRequest()->getParam('attribute_code')
?: $this->generateCode($this->getRequest()->getParam('frontend_label')[0]);
if (strlen($attributeCode) > 0) {
$validatorAttrCode = new \Zend_Validate_Regex(['pattern' => '/^[a-z][a-z_0-9]{0,30}$/']);
if (!$validatorAttrCode->isValid($attributeCode)) {
$this->messageManager->addError(
__(
'Attribute code "%1" is invalid. Please use only letters (a-z), ' .
'numbers (0-9) or underscore(_) in this field, first character should be a letter.',
$attributeCode
)
);
return $this->returnResult(
'*/*/edit',
['field_id' => $fieldId, '_current' => true]
);
}
}
$data['attribute_code'] = $attributeCode;

/* @var $model \Swissup\CheckoutFields\Model\Field */
$model = $this->fieldFactory->create();

if ($fieldId) {
$model->load($fieldId);
if (!$model->getId()) {
$this->messageManager->addError(__('This field no longer exists.'));
return $this->returnResult('*/*/');
}

$data['attribute_code'] = $model->getAttributeCode();
$data['frontend_input'] = $model->getFrontendInput();
}

$defaultValueField = $model->getDefaultValueByInput($data['frontend_input']);
if ($defaultValueField) {
$data['default_value'] = $this->getRequest()->getParam($defaultValueField);
}

$model->addData($data);

try {
$model->save();
$this->messageManager->addSuccess(__('You saved the checkout field.'));

$this->_session->setFieldData(false);
if ($this->getRequest()->getParam('back', false)) {
return $this->returnResult(
'*/*/edit',
['field_id' => $model->getId(), '_current' => true]
);
}
return $this->returnResult('*/*/');
} catch (\Exception $e) {
$this->messageManager->addError($e->getMessage());
$this->_session->setFieldData($data);
return $this->returnResult(
'*/*/edit',
['field_id' => $fieldId, '_current' => true]
);
}
}
return $this->returnResult('*/*/');
}

/**
* @param string $path
* @param array $params
* @return \Magento\Backend\Model\View\Result\Redirect
*/
private function returnResult($path = '', array $params = [])
{
return $this->resultFactory->create(ResultFactory::TYPE_REDIRECT)
->setPath($path, $params);
}

/**
* @param array $data
* @return void
*/
private function preprocessOptionsData(&$data)
{
if (isset($data['serialized_options'])) {
$serializedOptions = json_decode($data['serialized_options'], JSON_OBJECT_AS_ARRAY);
foreach ($serializedOptions as $serializedOption) {
$option = [];
parse_str($serializedOption, $option);
$data = array_replace_recursive($data, $option);
}
}
unset($data['serialized_options']);
}
}