When a user applies a signature in a workflow, the signer is the futureDestUser of the next step

See:
- Vendee/accent-suivi-developpement#1252
- https://champs-libres.openproject.com/wp/768
- OP#768

src/Bundle/ChillMainBundle/Tests/Workflow/SignatureStepStateChangerTest.php

@@ -37,7 +37,7 @@ use Symfony\Component\Workflow\WorkflowInterface;
  */
 class SignatureStepStateChangerTest extends TestCase
 {
-    public function testMarkSignatureAsSignedScenarioWhichExpectsTransition()
+    public function testMarkSignatureAsSignedScenarioWhichExpectsTransitionSignatureWithPerson()
     {
         $entityWorkflow = new EntityWorkflow();
         $entityWorkflow->setWorkflowName('dummy');
@@ -84,6 +84,40 @@ class SignatureStepStateChangerTest extends TestCase
         self::assertNotNull($signatures[1]->getStateDate());
     }
 
+    public function testMarkSignatureAsSignedScenarioWhichExpectsTransitionSignatureWithUser()
+    {
+        $entityWorkflow = new EntityWorkflow();
+        $entityWorkflow->setWorkflowName('dummy');
+        $registry = $this->buildRegistry();
+        $workflow = $registry->get($entityWorkflow, 'dummy');
+        $clock = new MockClock();
+        $user = new User();
+
+        $messengerBus = new MessageBus([]);
+        $changer = new SignatureStepStateChanger($registry, $clock, new NullLogger(), $messengerBus);
+
+        // move it to signature
+        $dto = new WorkflowTransitionContextDTO($entityWorkflow);
+        $dto->futureUserSignature = $signer = new User();
+        $workflow->apply($entityWorkflow, 'to_signature', ['context' => $dto, 'transitionAt' => $clock->now(),
+            'byUser' => $user, 'transition' => 'to_signature']);
+
+        // get the signature created
+        $signatures = $entityWorkflow->getCurrentStep()->getSignatures();
+
+        // we mark the first signature as signed
+        $changer->markSignatureAsSigned($signatures[0], 1);
+        // the next step should be done by handling an async message
+        $changer->onPostMark($signatures[0]);
+
+        self::assertEquals(EntityWorkflowSignatureStateEnum::SIGNED, $signatures[0]->getState());
+        self::assertEquals('post-signature', $entityWorkflow->getStep(), 'the entity workflow step should be post-signature');
+        self::assertContains($signer, $entityWorkflow->getCurrentStep()->getAllDestUser());
+        self::assertCount(1, $entityWorkflow->getCurrentStep()->getAllDestUser());
+        self::assertEquals(1, $signatures[0]->getZoneSignatureIndex());
+        self::assertNotNull($signatures[0]->getStateDate());
+    }
+
     public function testMarkSignatureAsSignedScenarioWithoutRequiredMetadata()
     {
         $entityWorkflow = new EntityWorkflow();

src/Bundle/ChillMainBundle/Workflow/SignatureStepStateChanger.php

@@ -97,16 +97,20 @@ class SignatureStepStateChanger
             return;
         }
 
-        $previousUser = $this->getPreviousSender($signature->getStep());
+        if ('person' === $signature->getSignerKind()) {
+            $futureUser = $this->getPreviousSender($signature->getStep());
+        } else {
+            $futureUser = $signature->getSigner();
+        }
 
-        if (null === $previousUser) {
+        if (null === $futureUser) {
             $this->logger->info(self::LOG_PREFIX.'No previous user, will not apply a transition', ['signatureId' => $signature->getId()]);
 
             return;
         }
 
         $transitionDto = new WorkflowTransitionContextDTO($entityWorkflow);
-        $transitionDto->futureDestUsers[] = $previousUser;
+        $transitionDto->futureDestUsers[] = $futureUser;
 
         $workflow->apply($entityWorkflow, $transition, [
             'context' => $transitionDto,