filtered articles index if translated or not in current language

sites/all/modules/figli/edlp_corpus/src/Controller/CorpusController.php

@@ -262,6 +262,8 @@ class CorpusController extends ControllerBase {
       $nids = $query->execute();
       $nodes = entity_load_multiple('node', $nids);
 
+      $current_langcode = \Drupal::languageManager()->getCurrentLanguage()->getId();
+
       $this->articles_nodes = [];
       $this->articles_nids = [];
       foreach ($nodes as $node) {
@@ -269,6 +271,10 @@ class CorpusController extends ControllerBase {
         $sid = WorkflowManager::getCurrentStateId($node, 'field_workflow');
         if($sid != 'corpus_documents_publie') continue;
 
+        // TODO: check if article is translated
+        if (!$node->hasTranslation($current_langcode)
+            || $node->getTranslation($current_langcode)->body->isEmpty()) continue;
+
         $this->articles_nodes[] = $node;
         // record an array of nids for corpus map filtering
         $this->articles_nids[] = $node->get('nid')->getString();