Convert non-PDF documents before applying a signature

Enhanced the `addConvertedVersion` method in `StoredObjectToPdfConverter` to optionally include converted content in the response. Updated `SignatureRequestController` to handle non-PDF documents by converting them to PDF before processing the signature request.

src/Bundle/ChillDocStoreBundle/Controller/SignatureRequestController.php

@@ -15,12 +15,14 @@ use Chill\DocStoreBundle\Service\Signature\Driver\BaseSigner\RequestPdfSignMessa
 use Chill\DocStoreBundle\Service\Signature\PDFPage;
 use Chill\DocStoreBundle\Service\Signature\PDFSignatureZone;
 use Chill\DocStoreBundle\Service\StoredObjectManagerInterface;
+use Chill\DocStoreBundle\Service\StoredObjectToPdfConverter;
 use Chill\MainBundle\Entity\Workflow\EntityWorkflowSignatureStateEnum;
 use Chill\MainBundle\Entity\Workflow\EntityWorkflowStepSignature;
 use Chill\MainBundle\Templating\Entity\ChillEntityRenderManagerInterface;
 use Chill\MainBundle\Security\Authorization\EntityWorkflowStepSignatureVoter;
 use Chill\MainBundle\Templating\Entity\UserRender;
 use Chill\MainBundle\Workflow\EntityWorkflowManager;
+use Doctrine\ORM\EntityManagerInterface;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -39,6 +41,8 @@ class SignatureRequestController
         private readonly ChillEntityRenderManagerInterface $entityRender,
         private readonly NormalizerInterface $normalizer,
         private readonly Security $security,
+        private readonly StoredObjectToPdfConverter $converter,
+        private readonly EntityManagerInterface $entityManager,
     ) {}
 
     #[Route('/api/1.0/document/workflow/{id}/signature-request', name: 'chill_docstore_signature_request')]
@@ -53,11 +57,17 @@ class SignatureRequestController
         if (EntityWorkflowSignatureStateEnum::PENDING !== $signature->getState()) {
             return new JsonResponse([], status: Response::HTTP_CONFLICT);
         }
-
         $storedObject = $this->entityWorkflowManager->getAssociatedStoredObject($entityWorkflow);
-        $content = $this->storedObjectManager->read($storedObject);
 
-        $data = \json_decode((string) $request->getContent(), true, 512, JSON_THROW_ON_ERROR); // TODO parse payload: json_decode ou, mieux, dataTransfertObject
+        if ('application/pdf' !== $storedObject->getType()) {
+            [$storedObject, $storedObjectVersion, $content] = $this->converter->addConvertedVersion($storedObject, $request->getLocale(), includeConvertedContent: true);
+            $this->entityManager->persist($storedObjectVersion);
+            $this->entityManager->flush();
+        } else {
+            $content = $this->storedObjectManager->read($storedObject);
+        }
+
+        $data = \json_decode((string) $request->getContent(), true, 512, JSON_THROW_ON_ERROR);
         $zone = new PDFSignatureZone(
             $data['zone']['index'],
             $data['zone']['x'],

src/Bundle/ChillDocStoreBundle/Service/StoredObjectToPdfConverter.php

@@ -39,13 +39,13 @@ class StoredObjectToPdfConverter
      * @param string       $lang         the language for the conversion context
      * @param string       $convertTo    The target format for the conversion. Default is 'pdf'.
      *
-     * @return array{0: StoredObjectPointInTime, 1: StoredObjectVersion} contains the point in time before conversion and the new version of the stored object
+     * @return array{0: StoredObjectPointInTime, 1: StoredObjectVersion, 2?: string} contains the point in time before conversion and the new version of the stored object. The converted content is included in the response if $includeConvertedContent is true
      *
      * @throws \UnexpectedValueException    if the preferred mime type for the conversion is not found
      * @throws \RuntimeException            if the conversion or storage of the new version fails
      * @throws StoredObjectManagerException
      */
-    public function addConvertedVersion(StoredObject $storedObject, string $lang, $convertTo = 'pdf'): array
+    public function addConvertedVersion(StoredObject $storedObject, string $lang, $convertTo = 'pdf', bool $includeConvertedContent = false): array
     {
         $newMimeType = $this->mimeTypes->getMimeTypes($convertTo)[0] ?? null;
 
@@ -70,6 +70,11 @@ class StoredObjectToPdfConverter
         $pointInTime = new StoredObjectPointInTime($currentVersion, StoredObjectPointInTimeReasonEnum::KEEP_BEFORE_CONVERSION);
         $version = $this->storedObjectManager->write($storedObject, $converted, $newMimeType);
 
-        return [$pointInTime, $version];
+        if (!$includeConvertedContent) {
+            return [$pointInTime, $version];
+        }
+
+        return [$pointInTime, $version, $converted];
+
     }
 }