/**
  * Builds the entity translation for the provided translation data.
  *
  * @param \Drupal\Core\Entity\ContentEntityInterface $entity
  *   The entity for which the translation should be returned.
  * @param array $data
  *   The translation data for the fields.
  * @param string $target_langcode
  *   The target language.
  *
  * @return \Drupal\Core\Entity\ContentEntityInterface $translation
  *   Translation data.
  */
 protected function makePreview(ContentEntityInterface $entity, array $data, $target_langcode)
 {
     // If the translation for this language does not exist yet, initialize it.
     if (!$entity->hasTranslation($target_langcode)) {
         $entity->addTranslation($target_langcode, $entity->toArray());
     }
     $embeded_fields = $this->config('tmgmt_content.settings')->get('embedded_fields');
     $translation = $entity->getTranslation($target_langcode);
     foreach ($data as $name => $field_data) {
         foreach (Element::children($field_data) as $delta) {
             $field_item = $field_data[$delta];
             foreach (Element::children($field_item) as $property) {
                 $property_data = $field_item[$property];
                 // If there is translation data for the field property, save it.
                 if (isset($property_data['#translation']['#text']) && $property_data['#translate']) {
                     $translation->get($name)->offsetGet($delta)->set($property, $property_data['#translation']['#text']);
                 } elseif (isset($embeded_fields[$entity->getEntityTypeId()][$name])) {
                     $this->makePreview($translation->get($name)->offsetGet($delta)->{$property}, $property_data, $target_langcode);
                 }
             }
         }
     }
     return $translation;
 }
 /**
  * Saves translation data in an entity translation.
  *
  * @param \Drupal\Core\Entity\ContentEntityInterface $entity
  *   The entity for which the translation should be saved.
  * @param array $data
  *   The translation data for the fields.
  * @param string $target_langcode
  *   The target language.
  */
 protected function doSaveTranslations(ContentEntityInterface $entity, array $data, $target_langcode)
 {
     // If the translation for this language does not exist yet, initialize it.
     if (!$entity->hasTranslation($target_langcode)) {
         $entity->addTranslation($target_langcode, $entity->toArray());
     }
     $embeded_fields = \Drupal::config('tmgmt_content.settings')->get('embedded_fields');
     $translation = $entity->getTranslation($target_langcode);
     $manager = \Drupal::service('content_translation.manager');
     $manager->getTranslationMetadata($translation)->setSource($entity->language()->getId());
     foreach ($data as $name => $field_data) {
         foreach (Element::children($field_data) as $delta) {
             $field_item = $field_data[$delta];
             foreach (Element::children($field_item) as $property) {
                 $property_data = $field_item[$property];
                 // If there is translation data for the field property, save it.
                 if (isset($property_data['#translation']['#text']) && $property_data['#translate']) {
                     $translation->get($name)->offsetGet($delta)->set($property, $property_data['#translation']['#text']);
                 } elseif (isset($embeded_fields[$entity->getEntityTypeId()][$name])) {
                     $this->doSaveTranslations($translation->get($name)->offsetGet($delta)->{$property}, $property_data, $target_langcode);
                 }
             }
         }
     }
     $translation->save();
 }