<?php

/**
 * @file
 * Custom hooks for Islandlives site.
 */

use Drupal\pathauto\PathautoPatternInterface;
use Drupal\views\ViewExecutable;

/**
 * Implements hook_pathauto_pattern_alter().
 */
function islandlives_pathauto_pattern_alter(PathautoPatternInterface $pattern, array $context) {
  // Only act on the repository_items pattern.
  if ($pattern->id() == 'repository_items') {
    // If node has no PID...
    $node = $context['data']['node'];
    $pid = $node->get('field_pid')->value;
    if ($pid == NULL) {
      // Replace the PID with the NID in the alias.
      $new_pattern = preg_replace('/\[node:field_pid\]/', '[node:nid]', $pattern->getPattern());
      $pattern->setPattern($new_pattern);
    }
  }
}

/**
 * Implements hook_views_pre_render().
 */
function islandlives_views_pre_render(ViewExecutable $view) {
  $applicable_views = [
    'content',
    'media',
    'manage_members',
    'media_of',
    'all_scholars',
  ];
  if (isset($view) && (in_array($view->storage->id(), $applicable_views))) {
    $view->element['#attached']['library'][] = 'islandlives/unpublished';
  }
}

/**
 * Implements hook_entity_access().
 */
function islandlives_entity_access(\Drupal\Core\Entity\EntityInterface $entity, $operation, \Drupal\Core\Session\AccountInterface $account) {
  // Only modify access for 'view' and 'download' operations, and only for anonymous users.
  if (!($operation === 'view' || $operation === 'download') || !$account->isAnonymous()) {
    return \Drupal\Core\Access\AccessResult::neutral();
  }

  if ($entity instanceof \Drupal\media\MediaInterface) {
    if (!$entity->isPublished()) {
      return \Drupal\Core\Access\AccessResult::forbidden('Media is not published.');
    }
  }
  elseif ($entity instanceof \Drupal\file\FileInterface) {
    // Get all media attached to the files.
    $media = \Drupal::database()->select(\Drupal\islandora_hierarchical_access\LUTGeneratorInterface::TABLE_NAME, 'lut')
      ->fields('lut', ['mid'])
      ->condition("lut.fid", $entity->id())
      ->execute()
      ->fetchCol();

    foreach ($media as $mid) {
      $media_entity = \Drupal::entityTypeManager()->getStorage('media')->load($mid);
      if ($media_entity && !$media_entity->isPublished()) {
        return \Drupal\Core\Access\AccessResult::forbidden('Media is not published.');
      }
    }
  }
}