<?php
/*
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC. All rights reserved.                        |
 |                                                                    |
 | This work is published under the GNU AGPLv3 license with some      |
 | permitted exceptions and without any warranty. For full license    |
 | and copyright information, see https://civicrm.org/licensing       |
 +--------------------------------------------------------------------+
 */
namespace Civi\Api4;

/**
 * Retrieves information about all Api4 entities.
 *
 * @see \Civi\Api4\Generic\AbstractEntity
 *
 * @searchable none
 * @since 5.19
 * @package Civi\Api4
 */
class Entity extends Generic\AbstractEntity {

  /**
   * @param bool $checkPermissions
   * @return Action\Entity\Get
   */
  public static function get($checkPermissions = TRUE) {
    return (new Action\Entity\Get('Entity', __FUNCTION__))
      ->setCheckPermissions($checkPermissions);
  }

  /**
   * @param bool $checkPermissions
   * @return Generic\BasicGetFieldsAction
   */
  public static function getFields($checkPermissions = TRUE) {
    return (new Generic\BasicGetFieldsAction('Entity', __FUNCTION__, function(Generic\BasicGetFieldsAction $getFields) {
      return [
        [
          'name' => 'name',
          'description' => 'Entity name',
        ],
        [
          'name' => 'title',
          'description' => 'Localized title (singular)',
        ],
        [
          'name' => 'title_plural',
          'description' => 'Localized title (plural)',
        ],
        [
          'name' => 'type',
          'data_type' => 'Array',
          'description' => 'Base class for this entity',
          'options' => $getFields->getLoadOptions() ? self::getEntityTypes() : TRUE,
        ],
        [
          'name' => 'description',
          'description' => 'Description from docblock',
        ],
        [
          'name' => 'comment',
          'description' => 'Comments from docblock',
        ],
        [
          'name' => 'icon',
          'description' => 'crm-i icon class associated with this entity',
        ],
        [
          'name' => 'dao',
          'description' => 'Class name for dao-based entities',
        ],
        [
          'name' => 'table_name',
          'description' => 'Name of sql table, if applicable',
        ],
        [
          'name' => 'primary_key',
          'data_type' => 'Array',
          'description' => 'Name of unique identifier field(s) (e.g. [id])',
        ],
        [
          'name' => 'label_field',
          'description' => 'Field to show when displaying a record',
        ],
        [
          'name' => 'order_by',
          'description' => 'Default column to sort results',
        ],
        [
          'name' => 'searchable',
          'description' => 'How should this entity be presented in search UIs',
          'options' => [
            'primary' => ts('Primary'),
            'secondary' => ts('Secondary'),
            'bridge' => ts('Bridge'),
            'none' => ts('None'),
          ],
        ],
        [
          'name' => 'paths',
          'data_type' => 'Array',
          'description' => 'System paths for accessing this entity',
        ],
        [
          'name' => 'see',
          'data_type' => 'Array',
          'description' => 'Any @see annotations from docblock',
        ],
        [
          'name' => 'since',
          'data_type' => 'String',
          'description' => 'Version this API entity was added',
        ],
        [
          'name' => 'class',
          'data_type' => 'String',
          'description' => 'PHP class name',
        ],
        [
          'name' => 'class_args',
          'data_type' => 'Array',
          'description' => 'Arguments needed by php action factory functions (used when multiple entities share a class, e.g. CustomValue).',
        ],
        [
          'name' => 'bridge',
          'data_type' => 'Array',
          'description' => 'Connecting fields for EntityBridge types',
        ],
        [
          'name' => 'ui_join_filters',
          'data_type' => 'Array',
          'description' => 'When joining entities in the UI, which fields should be presented by default in the ON clause',
        ],
        [
          'name' => 'group_weights_by',
          'data_type' => 'Array',
          'description' => 'For sortable entities, what field groupings are used to order by weight',
        ],
      ];
    }))->setCheckPermissions($checkPermissions);
  }

  /**
   * @param bool $checkPermissions
   * @deprecated
   * @return Action\Entity\GetLinks
   */
  public static function getLinks($checkPermissions = TRUE) {
    return (new Action\Entity\GetLinks('Entity', __FUNCTION__))
      ->setCheckPermissions($checkPermissions);
  }

  /**
   * @return array
   */
  public static function permissions() {
    return [
      'default' => ['access CiviCRM'],
    ];
  }

  /**
   * Collect the 'type' values from every entity.
   *
   * @return array
   */
  private static function getEntityTypes() {
    $provider = \Civi::service('action_object_provider');
    $entityTypes = [];
    foreach ($provider->getEntities() as $entity) {
      foreach ($entity['type'] ?? [] as $type) {
        $entityTypes[$type] = $type;
      }
    }
    return $entityTypes;
  }

}