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<?php
/**
* @copyright Vertex. All rights reserved. https://www.vertexinc.com/
* @author Mediotype https://www.mediotype.com/
*/
namespace Vertex\Tax\Model\Config;
use Magento\Config\Block\System\Config\Form\Field\FieldArray\AbstractFieldArray;
use Magento\Framework\Math\Random;
/**
* Class encode/decode Delivery Term configuration
*/
class DeliveryTerm
{
/** @var Random */
private $mathRandom;
/**
* @param Random $mathRandom
*/
public function __construct(Random $mathRandom)
{
$this->mathRandom = $mathRandom;
}
/**
* Make value readable by @see AbstractFieldArray
*
* @param string|array $value
* @return array
*/
public function makeArrayFieldValue($value)
{
$value = $this->unserializeValue($value);
if (!$this->isEncodedArrayFieldValue($value)) {
return $this->encodeArrayFieldValue($value);
}
return $this->unserializeValue($value);
}
/**
* Make value ready for store
*
* @param string|array $value
* @return string
*/
public function makeStorableArrayFieldValue($value)
{
if ($this->isEncodedArrayFieldValue($value)) {
$value = $this->decodeArrayFieldValue($value);
}
return $this->serializeValue($value);
}
/**
* Decode value from used in @see AbstractFieldArray
*
* @param array $value
* @return array
*/
private function decodeArrayFieldValue(array $value)
{
$result = [];
unset($value['__empty']);
foreach ($value as $row) {
if (!is_array($row)
|| !array_key_exists('country_id', $row)
|| !array_key_exists('delivery_term', $row)
) {
continue;
}
$countryId = $row['country_id'];
$deliveryTerm = $row['delivery_term'];
$result[$countryId] = $deliveryTerm;
}
return $result;
}
/**
* Encode value to be used in @see AbstractFieldArray
*
* @param array $value
* @return array
*/
private function encodeArrayFieldValue(array $value)
{
$result = [];
foreach ($value as $countryId => $deliveryTerm) {
$resultId = $this->mathRandom->getUniqueHash('_');
$result[$resultId] = ['country_id' => $countryId, 'delivery_term' => $deliveryTerm];
}
return $result;
}
/**
* Check whether value is in form retrieved by @see encodeArrayFieldValue
*
* @param string|array $value
* @return bool
*/
private function isEncodedArrayFieldValue($value)
{
if (!is_array($value)) {
return false;
}
unset($value['__empty']);
foreach ($value as $row) {
if (!is_array($row)
|| !array_key_exists('country_id', $row)
|| !array_key_exists('delivery_term', $row)
) {
return false;
}
}
return true;
}
/**
* Generate a storable representation of a value
*
* @param array $value
* @return string
*/
private function serializeValue($value)
{
if (is_array($value)) {
$data = [];
foreach ($value as $countryId => $deliveryTerm) {
if (!array_key_exists($countryId, $data)) {
$data[$countryId] = $deliveryTerm;
}
}
return json_encode($data, true);
}
return '';
}
/**
* Create a value from a storable representation
*
* @param string|null $value
* @return array
*/
public function unserializeValue($value)
{
if (is_string($value) && !empty($value)) {
return json_decode($value, true);
}
return [];
}
}