Add offsite redirect WinbankPaymentRedirectForm

src/PluginForm/OffsiteRedirect/WinbankPaymentRedirectForm.php

+<?php
+
+namespace Drupal\commerce_winbank\PluginForm\OffsiteRedirect;
+
+use Drupal\commerce_payment\Exception\InvalidResponseException;
+use Drupal\commerce_payment\Exception\PaymentGatewayException;
+use Drupal\commerce_payment\PluginForm\PaymentOffsiteForm as BasePaymentOffsiteForm;
+use Drupal\Core\Form\FormStateInterface;
+
+class WinbankPaymentRedirectForm extends BasePaymentOffsiteForm {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+    $form = parent::buildConfigurationForm($form, $form_state);
+
+    $payment = $this->entity;
+    $payment_gateway_plugin = $payment->getPaymentGateway()->getPlugin();
+    $config = $payment_gateway_plugin->getConfiguration();
+    $order = $payment->getOrder();
+    // Format amount
+    $amount = sprintf('%0.2f', $order->getTotalPrice()->getNumber());
+
+    if ($config['mode'] == 'test') {
+      $config["tickets_url"] = $config["tickets_url_test"];
+      $config["paycenter_url"] = $config["paycenter_url_test"];
+    }
+
+    // Validate merchant_id, other validations ?
+    if (empty($config['merchant_id'])) {
+      throw new PaymentGatewayException('Merchant ID not provided.');
+    }
+
+    // Get new ticket
+    try {
+      $result = $this->getNewTicket($amount, $order->id(), $config);
+
+      if ($result->IssueNewTicketResult->ResultCode == 0) {
+
+        // save response data for validating response later
+        $order->setData("IssueNewTicketResult",[
+          "ResultCode" => $result->IssueNewTicketResult->ResultCode,
+          "TranTicket" => $result->IssueNewTicketResult->TranTicket,
+          "Timestamp" => $result->IssueNewTicketResult->Timestamp,
+          "MinutesToExpiration" => $result->IssueNewTicketResult->MinutesToExpiration,
+        ]);
+
+      } else {
+        $message = 'There was a problem connecting ot the ticket issuer: '. $result->IssueNewTicketResult->ResultDescription;
+        throw new InvalidResponseException($message);
+      }
+    } catch (Exception $e) {
+      throw new InvalidResponseException('Could not connect to bank ticket issuer');
+    }
+
+    // Prepare redirect form
+    $data = [
+      'AcquirerId' => $config['acquirer_id'],
+      'MerchantId' => $config['merchant_id'],
+      'PosId' => $config['pos_id'],
+      'User' => $config['user'],
+      'MerchantReference' => $order->id(),
+      'LanguageCode' => $config['language_code'],
+      'ParamBackLink' => '',
+    ];
+
+    $form = $this->buildRedirectForm($form, $form_state, $config['paycenter_url'], $data);
+    //temporary
+    unset($form['#attached']['library']);
+    return $form;
+  }
+
+
+  /**
+   * Soap request to get NewTicket for transaction
+   *
+   * @param int $amount
+   *   The order amount.
+   * @param int $orderid
+   *   The order id.
+   * @param int $config
+   *   The configuration object.
+   *
+   * @return array
+   *   Object containing the soap service response.
+   *
+   */
+  public function getNewTicket($amount, $orderid, $config){
+    //libxml_disable_entity_loader(false);
+    $options= array(
+      'location' 	=>	$config['tickets_url'],
+      'uri'		=>	$config['tickets_url']
+    );
+    $soap = new \SoapClient(NULL, $options);
+    $ticketRequest = [
+      'Username' => $config['username'],
+      'Password' => hash('md5', $config['password']),
+      'MerchantId' => $config['merchant_id'],
+      'PosId' => $config['pos_id'],
+      'AcquirerId' => $config['acquirer_id'],
+      'MerchantReference' => $orderid,
+      'RequestType' => $config['request_type'],
+      'ExpirePreauth' => 0,
+      'Amount' => $amount,
+      'CurrencyCode' => $config['currency_code'],
+      'Installments' => 0,
+      'Bnpl' => '0',
+      'Parameters' => ''
+    ];
+    $xml = array(
+      'Request' => $ticketRequest
+    );
+    return $soap->IssueNewTicket($xml);
+  }
+}