<?php

/**
 * @file
 * Primary module hooks for Regenerate Derivatives module.
 */

use Drupal\media\MediaInterface;

/**
 * Implements hook_media_update().
 */
function regenerate_derivatives_media_update(MediaInterface $media) {
  $media_source_service = \Drupal::service('islandora.media_source_service');
  $field_name = 'field_regenerate_derivatives';
  $utils = \Drupal::service('islandora.utils');
  $source_field = $media_source_service->getSourceFieldName($media->bundle());
  if (empty($source_field)) {
    return;
  }
  if ($media->hasField($field_name) && !$media->get($field_name)->isEmpty()) {
    $value = $media->get($field_name)->value;
    if ($value) {
      $node = $utils->getParentNode($media);
      if ($node) {
        $utils->executeDerivativeReactions(
          '\Drupal\islandora\Plugin\ContextReaction\DerivativeReaction',
          $node,
          $media
        );
        $utils->executeMediaReactions('\Drupal\islandora\Plugin\ContextReaction\DerivativeFileReaction', $media);
      }
    }
  }

}