Log when processing the queue for corrupt newsletter

[MAILPOET-4983]

mailpoet/lib/Newsletter/Renderer/Preprocessor.php

@@ -3,6 +3,7 @@
 namespace MailPoet\Newsletter\Renderer;
 
 use MailPoet\Entities\NewsletterEntity;
+use MailPoet\Logging\LoggerFactory;
 use MailPoet\Newsletter\NewslettersRepository;
 use MailPoet\Newsletter\Renderer\Blocks\AbandonedCartContent;
 use MailPoet\Newsletter\Renderer\Blocks\AutomatedLatestContentBlock;
@@ -36,18 +37,23 @@ class Preprocessor {
   /*** @var NewslettersRepository */
   private $newslettersRepository;
 
+  /*** @var LoggerFactory */
+  private $loggerFactory;
+
   public function __construct(
     AbandonedCartContent $abandonedCartContent,
     AutomatedLatestContentBlock $automatedLatestContent,
     ContentPreprocessor $wooCommerceContentPreprocessor,
     CouponPreProcessor $couponPreProcessor,
-    NewslettersRepository $newslettersRepository
+    NewslettersRepository $newslettersRepository,
+    LoggerFactory $loggerFactory
   ) {
     $this->abandonedCartContent = $abandonedCartContent;
     $this->automatedLatestContent = $automatedLatestContent;
     $this->wooCommerceContentPreprocessor = $wooCommerceContentPreprocessor;
     $this->couponPreProcessor = $couponPreProcessor;
     $this->newslettersRepository = $newslettersRepository;
+    $this->loggerFactory = $loggerFactory;
   }
 
   /**
@@ -67,7 +73,11 @@ class Preprocessor {
     try {
       $contentBlocks = $this->couponPreProcessor->processCoupons($newsletter, $contentBlocks, $preview);
     } catch (NewsletterProcessingException $e) {
-      $newsletter->setStatus(NewsletterEntity::STATUS_CORRUPT);
+      $this->loggerFactory->getLogger(LoggerFactory::TOPIC_COUPONS)->error(
+          $e->getMessage(),
+          ['newsletter_id' => $newsletter->getId()]
+        );
+        $newsletter->setStatus(NewsletterEntity::STATUS_CORRUPT);
       $this->newslettersRepository->persist($newsletter);
       $this->newslettersRepository->flush();
     }