<?php

namespace Drupal\entity_test\Entity;

use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Field\BaseFieldDefinition;
use Drupal\entity_test\Plugin\Field\ComputedTestFieldItemList;

/**
 * An entity used for testing computed field values.
 *
 * @ContentEntityType(
 *   id = "entity_test_computed_field",
 *   label = @Translation("Entity Test computed field"),
 *   base_table = "entity_test_computed_field",
 *   handlers = {
 *     "views_data" = "Drupal\entity_test\EntityTestViewsData"
 *   },
 *   entity_keys = {
 *     "id" = "id",
 *     "label" = "name",
 *   },
 *   admin_permission = "administer entity_test content",
 *   links = {
 *     "add-form" = "/entity_test_computed_field/add",
 *   },
 * )
 */
class EntityTestComputedField extends EntityTest {

  /**
   * {@inheritdoc}
   */
  public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
    $fields = parent::baseFieldDefinitions($entity_type);

    $fields['computed_string_field'] = BaseFieldDefinition::create('string')
      ->setLabel('Computed Field Test')
      ->setComputed(TRUE)
      ->setClass(ComputedTestFieldItemList::class);

    return $fields;
  }

}