at the end of the day, it was inevitable

src/AdminBundle/Controller/User/MasterController.php

@@ -0,0 +1,100 @@
+<?php
+
+namespace AdminBundle\Controller\User;
+
+use AdminBundle\Form\User\MasterUserType;
+use AdminBundle\Form\User\SubscriberType;
+use PaymentBundle\Enum\PaymentGatewayEnum;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Security;
+use UserBundle\Entity\Plan;
+use UserBundle\Entity\Subscription\PersonalSubscription;
+use UserBundle\Entity\User;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Method;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+use UserBundle\Enum\UserRoleEnum;
+use \Symfony\Component\HttpFoundation\Response;
+
+/**
+ * User controller.
+ *
+ * @Security("has_role('ROLE_ADMIN')")
+ * @Route("/users/masters")
+ */
+class MasterController extends AbstractUserController
+{
+
+    protected static $role = UserRoleEnum::MASTER_USER;
+    protected static $formClass = MasterUserType::class;
+
+    /**
+     * @Route("/{id}/show"), requirements={ "id": "\d+" }
+     * @Method({ "GET" })
+     *
+     * Finds and displays a user entity.
+     *
+     * @param User $user A User entity instance.
+     *
+     * @return Response
+     */
+    public function showAction(User $user)
+    {
+        $subscriber = new User();
+        $subscriber->setMasterUser($user);
+
+        $form = $this->createForm(
+            SubscriberType::class,
+            $subscriber,
+            [
+                'action' => $this->generateUrl('admin_user_subscriber_new'),
+                'show_master_selector' => false,
+            ]
+        );
+
+        return $this->render($this->getTemplate('show'), [
+            'user' => $user,
+            'subscriberForm' => $form->createView(),
+            'listUrl' => $this->generateCRUDUrl('index'),
+            'editUrl' => $this->generateCRUDUrl('edit', $user->getId()),
+            'deleteUrl' => $this->generateCRUDUrl('delete', $user->getId()),
+        ]);
+    }
+
+    /**
+     * @param object|User $entity Created entity instance.
+     *
+     * @return null|Response
+     */
+    public function preCreate($entity)
+    {
+        if ($entity->hasRole(UserRoleEnum::MASTER_USER)) {
+            //
+            // Subscribe created masters to free plan.
+            //
+            $em = $this->getDoctrine()->getManager();
+
+            $freePlan = current(array_filter(
+                $em->getRepository(Plan::class)->findAll(),
+                function (Plan $plan) {
+                    return $plan->isFree();
+                }
+            ));
+
+            if ($freePlan === null) {
+                $this->addFlash('admin_error', 'Can\'t create master \'cause we don\'t have free plan');
+
+                return $this->redirectToRoute($this->getRoute('index'));
+            }
+
+            $subscription = new PersonalSubscription();
+            $subscription
+                ->setPlan($freePlan)
+                ->setGateway(PaymentGatewayEnum::paypal())
+                ->setPayed(true)
+                ->setOwner($entity);
+
+            $entity->setBillingSubscription($subscription);
+        }
+
+        return null;
+    }
+}