uc_gc_client-8.x-1.x-dev/src/Form/PaymentCancel.php

<?php

namespace Drupal\uc_gc_client\Form;

use Drupal\Core\Form\ConfirmFormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
// Use Drupal\uc_order\Entity\Order;.
use Drupal\uc_gc_client\Controller\GoCardlessPartner;

/**
 * Defines a confirmation form for cancelling pending payments.
 */
class PaymentCancel extends ConfirmFormBase {

  /**
   * The Ubercart order ID of the item to cancel.
   *
   * @var int
   */
  protected $ucid;

  /**
   * The commerce payment ID of the item to cancel.
   *
   * @var int
   */
  protected $paymentId;

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'uc_gc_client_payment_cancel';
  }

  /**
   * {@inheritdoc}
   */
  public function getQuestion() {
    return $this->t('Are you sure you want to cancel GoCardless payment @paymentId?', [
      '@paymentId' => $this->paymentId,
    ]);
  }

  /**
   * {@inheritdoc}
   */
  public function getCancelUrl() {
    return new Url(
        'uc_gc_client.payments_form', [
          'uc_order' => $this->ucid,
        ]
    );
  }

  /**
   * {@inheritdoc}
   */
  public function getConfirmText() {
    return $this->t('Cancel payment');
  }

  /**
   * {@inheritdoc}
   */
  public function getCancelText() {
    return $this->t('Go back');
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, $ucid = NULL, $payment_id = NULL) {
    $this->ucid = $ucid;
    $this->paymentId = $payment_id;
    return parent::buildForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $partner = new GoCardlessPartner();
    $result = $partner->api(
        [
          'endpoint' => 'payments',
          'action' => 'cancel',
          'id' => $this->paymentId,
        ]
    );
    if ($result->response->status_code == 200) {
      drupal_set_message($this->t('Payment @paymentId has been cancelled with GoCardless.', ['@paymentId' => $this->paymentId]));
    }
    else {
      drupal_set_message($this->t('Something went wrong cancelling paynent @paymentId with GoCardless.', ['@paymentId' => $this->paymentId]), 'warning');
    }
    $form_state->setRedirect(
        'uc_gc_client.payments_form', [
          'uc_order' => $this->ucid,
        ]
    );
  }

}