class LangcodeRequiredIfTranslatableValuesConstraintValidator

final class LangcodeRequiredIfTranslatableValuesConstraintValidator extends ConstraintValidator {
  
  /**
   * {@inheritdoc}
   */
  public function validate(mixed $value, Constraint $constraint) : void {
    assert($constraint instanceof LangcodeRequiredIfTranslatableValuesConstraint);
    $mapping = $this->context
      ->getObject();
    assert($mapping instanceof Mapping);
    $root = $this->context
      ->getRoot();
    if ($mapping !== $root) {
      @trigger_error(sprintf('The LangcodeRequiredIfTranslatableValues constraint can only be applied to the root object being validated, using the \'config_object\' schema type on \'%s\' is deprecated in drupal:10.3.0 and will trigger a \\LogicException in drupal:11.0.0. See https://www.drupal.org/node/3459863', $root->getName() . '::' . $mapping->getName()), E_USER_DEPRECATED);
      return;
    }
    assert(in_array('langcode', $mapping->getValidKeys(), TRUE));
    $is_translatable = $mapping->hasTranslatableElements();
    if ($is_translatable && !array_key_exists('langcode', $value)) {
      $this->context
        ->buildViolation($constraint->missingMessage)
        ->setParameter('@name', $mapping->getName())
        ->addViolation();
      return;
    }
    if (!$is_translatable && array_key_exists('langcode', $value)) {
      // @todo Convert this deprecation to an actual validation error in
      //   https://www.drupal.org/project/drupal/issues/3440238.
      // phpcs:ignore
      @trigger_error(str_replace('@name', $mapping->getName(), $constraint->superfluousMessage), E_USER_DEPRECATED);
    }
  }

}