<?php

/**
 * Copyright 2018 Google Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */

namespace Drupal\apigee_kickstart_enhancement;

use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\apigee_edge\Entity\AppInterface;

/**
 * Defines the 'apigee_kickstart.enhancer` service.
 */
class ApigeeKickStartEnhancer implements ApigeeKickStartEnhancerInterface {

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * ApigeeKickStartEnhancer constructor.
   *
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   */
  public function __construct(EntityTypeManagerInterface $entity_type_manager) {
    $this->entityTypeManager = $entity_type_manager;
  }

  /**
   * {@inheritdoc}
   */
  public function getAppEntityTypes(): array {
    $entity_types = [];
    foreach ($this->entityTypeManager->getDefinitions() as $entity_type_id => $entity_type) {
      if ($this->isAppEntityType($entity_type)) {
        $entity_types[$entity_type_id] = $entity_type;
      }
    }
    return $entity_types;
  }

  /**
   * {@inheritdoc}
   */
  public function isAppEntityType(EntityTypeInterface $entity_type): bool {
    return in_array(AppInterface::class, class_implements($entity_type->getOriginalClass()));
  }

}
