A service for creating licenses programmatically

CreateLicense.php

<?php

namespace Drupal\free_trial;
use Drupal\Core\Entity\EntityTypeManager;
use Drupal\user\RoleInterface;

/**
 * Class CreateLicense.
 */
class CreateLicense implements CreateLicenseInterface {

  /**
   * Drupal\Core\Entity\EntityTypeManager definition.
   *
   * @var \Drupal\Core\Entity\EntityTypeManager
   */
  protected $entityTypeManager;

  /**
   * @var \Drupal\Core\Entity\EntityStorageInterface|mixed|object
   */
  protected $licenseStorage;
  /**
   * Constructs a new CreateLicense object.
   */
  public function __construct(EntityTypeManager $entity_type_manager) {
    $this->entityTypeManager = $entity_type_manager;
    $this->licenseStorage = $this->entityTypeManager->getStorage('commerce_license');
  }

  /**
   * Usage:
   * \Drupal::service('free_trial.create_license')->addLicense(
   *  'role',
   *  1,
   *  [
   *   'target_plugin_id' => 'interval',
   *   'target_plugin_configuration' => [
   *      'interval' => [
   *        'interval' => '7',
   *        'period' => 'day'
   *      ]
   *   ]
   * ],
   * 'new',
   * TRUE);
   *
   * @param $type
   *  The CommerceLicenseType type, e.g. 'role' or 'file'
   * @param $uid
   *  The user to whom the license should be granted
   * @param $expiration_type
   *  A plugin configuration for a CommerceLicenseExpiration
   * @param $role
   *  If 'role', provide a Drupal\user\RoleInterface
   * @param string $state
   *  The state the license should be in, see commerce_license.workflows.yml
   * @param bool $activate
   *  Whether or not the license should be immediately activated.
   * @return \Drupal\Core\Entity\EntityInterface
   *  a License entity
   */
  public function addLicense($type, $uid, array $expiration_type, RoleInterface $role = null, $state = 'new', $activate = TRUE) {
    $license = $this->licenseStorage->create([
      'type' => $type,
      'state' => $state,
      'uid' => $uid,
      'expiration_type' => $expiration_type,
      'license_role'=> $role,
    ]);

    $license->save();

    if ($activate) {
      $transition = $license->getState()->getWorkflow()->getTransition('confirm');
      $license->getState()->applyTransition($transition);
      $license->save();
    }

    return $license;
  }

}