<?php

/**
 * @file
 * Helper module for the diff tests.
 */

use Drupal\Core\Access\AccessResult;
use Drupal\diff\Routing\DiffRouteProvider;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Field\FieldItemListInterface;

/**
 * Implements hook_entity_type_alter().
 */
function diff_test_entity_type_alter(array &$entity_types) {
  /** @var \Drupal\Core\Entity\EntityType $entity_type */
  $entity_type = $entity_types['entity_test_rev'];
  $handlers = $entity_type->get('handlers');
  $handlers['route_provider']['html_diff'] = DiffRouteProvider::class;
  $entity_type->set('handlers', $handlers);
  $entity_type->setLinkTemplate('revisions-diff', "/entity_test_rev/{entity_test_rev}/revision/{left_revision}/{right_revision}");
}

/**
 * Implements hook_entity_field_access().
 */
function diff_test_entity_field_access($operation, FieldDefinitionInterface $field_definition, AccountInterface $account, FieldItemListInterface $items = NULL) {
  if ($field_definition->getName() == 'field_diff_deny_access') {
    return AccessResult::forbidden();
  }
  return AccessResult::allowed();
}