first commit

Client/Gateway.php

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+<?php
+
+namespace Novalnet\Bundle\NovalnetBundle\Client;
+
+use GuzzleHttp\ClientInterface;
+
+/**
+ * Handle Novalnet payport API request and response
+ */
+class Gateway implements GatewayInterface
+{
+    /** @var ClientInterface */
+    protected $httpClient;
+
+    /**
+     * @param ClientInterface $httpClient
+     */
+    public function __construct(ClientInterface $httpClient)
+    {
+        $this->httpClient = $httpClient;
+    }
+
+    /** {@inheritdoc} */
+    public function send($paymentAccessKey, $parameters, $hostAddress)
+    {   
+        $encodedData = base64_encode($paymentAccessKey);
+        $headers = [
+            'Content-Type' => 'application/json',
+            'charset' => 'utf-8',
+            'Accept' => 'application/json',
+            'X-NN-Access-Key' => $encodedData,
+        ];
+
+        $response = $this->httpClient->request(
+            'POST', 
+            $hostAddress, 
+            $this->getRequestOptions($parameters, $headers)
+         );
+        $result = json_decode($response->getBody(true), true);
+        return $result;
+    }
+
+    /**
+     * @param object $config
+     * @return array
+     */
+    protected function getRequestOptions($parameters, $headers)
+    {
+        $requestOptions = [
+            'json' => $parameters,
+            'headers' => $headers
+        ];
+
+        return $requestOptions;
+    }
+}

Client/GatewayInterface.php

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+<?php
+
+namespace Novalnet\Bundle\NovalnetBundle\Client;
+
+/**
+ * Interface for Handle Novalnet payport API request and response
+ */
+interface GatewayInterface
+{
+    /**
+     * @param string $paymentAccessKey
+     * @param array $parameters
+     * @param string $hostAddress
+     */
+    public function send($paymentAccessKey, $parameters, $hostAddress);
+}

Controller/Frontend/AjaxNovalnetController.php

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+<?php
+
+namespace Novalnet\Bundle\NovalnetBundle\Controller\Frontend;
+
+use Oro\Bundle\CheckoutBundle\Entity\Checkout;
+use Oro\Bundle\SecurityBundle\Annotation\AclAncestor;
+use Oro\Bundle\SecurityBundle\Annotation\CsrfProtection;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\Routing\Annotation\Route;
+use Novalnet\Bundle\NovalnetBundle\Entity\NovalnetTransactionDetails;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;
+use Oro\Bundle\EntityBundle\ORM\DoctrineHelper;
+
+/**
+ * Ajax Novalnet Controller
+ */
+class AjaxNovalnetController extends AbstractController
+{
+    /**
+     * @Route(
+     *      "/remove-payment-data/{id}",
+     *      name="novalnet_frontend_ajax_remove_payment_data",
+     *      requirements={"id"="\d+"},
+     *      methods={"POST"}
+     * )
+     * @ParamConverter("paymentTransaction", class="NovalnetBundle:NovalnetTransactionDetails", options={"id" = "id"})
+     * @param NovalnetTransactionDetails $novalnetTransactionDetails
+     * @return JsonResponse
+     */
+    public function removePaymentDataAction(NovalnetTransactionDetails $novalnetTransactionDetails)
+    {
+        $success = true;
+        try {
+			$doctrineHelper = $this->get(DoctrineHelper::class);
+            $novalnetTransactionDetails->setToken(null);
+            $novalnetTransactionDetails->setPaymentData(null);
+            $entityManager = $doctrineHelper->getEntityManager('NovalnetBundle:NovalnetTransactionDetails');
+            $entityManager->persist($novalnetTransactionDetails);
+            $entityManager->flush();
+        } catch (\Exception $exception) {
+            $success = false;
+        }
+
+        return new JsonResponse(['successful' => $success]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getSubscribedServices()
+    {
+        return array_merge(parent::getSubscribedServices(), [
+            DoctrineHelper::class
+        ]);
+    }
+}