<?php

/**
 * @file
 */

use Drupal\Core\Entity\EntityInterface;
use Drupal\media\MediaInterface;
use Drupal\node\NodeInterface;

/**
 * Implements hook_entity_insert().
 */
function caption_linker_entity_insert(EntityInterface $entity): void {
  if ($entity instanceof MediaInterface) {
    _caption_linker_link_caption_if_possible($entity);
  }
}

/**
 * Implements hook_entity_update().
 */
function caption_linker_entity_update(EntityInterface $entity): void {
  if ($entity instanceof MediaInterface) {
    _caption_linker_link_caption_if_possible($entity);
  }
}

/**
 * Tries to link a caption if applicable.
 */
function _caption_linker_link_caption_if_possible(MediaInterface $media): void {
  /** @var \Drupal\islandora\IslandoraUtils $islandora_utils */
  $islandora_utils = \Drupal::service('islandora.utils');
  /** @var \Drupal\caption_linker\Service\CaptionLinker $caption_linker */
  $caption_linker = \Drupal::service('caption_linker.caption_linker');

  $node = $islandora_utils->getParentNode($media);
  if ($node instanceof NodeInterface) {
    $caption_linker->linkCaption($node);
  }
}