<?php

namespace Drupal\views\Plugin\views\field;

use Drupal\Core\Entity\EntityRepositoryInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Language\LanguageManagerInterface;
use Drupal\Core\Routing\RedirectDestinationTrait;
use Drupal\views\Entity\Render\EntityTranslationRenderTrait;
use Drupal\views\ResultRow;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Renders all operations links for an entity.
 *
 * @ingroup views_field_handlers
 *
 * @ViewsField("entity_operations")
 */
class EntityOperations extends FieldPluginBase {

  use EntityTranslationRenderTrait;
  use RedirectDestinationTrait;

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

  /**
   * The entity repository service.
   *
   * @var \Drupal\Core\Entity\EntityRepositoryInterface
   */
  protected $entityRepository;

  /**
   * The entity display repository.
   *
   * @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface
   */
  protected $entityDisplayRepository;

  /**
   * The language manager.
   *
   * @var \Drupal\Core\Language\LanguageManagerInterface
   */
  protected $languageManager;

  /**
   * Constructs a new EntityOperations object.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param array $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
   *   The language manager.
   * @param \Drupal\Core\Entity\EntityRepositoryInterface $entity_repository
   *   The entity repository.
   */
  public function __construct(array $configuration, $plugin_id, array $plugin_definition, EntityTypeManagerInterface $entity_type_manager, LanguageManagerInterface $language_manager, EntityRepositoryInterface $entity_repository) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);

    $this->entityTypeManager = $entity_type_manager;
    $this->languageManager = $language_manager;
    $this->entityRepository = $entity_repository;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static(
      $configuration,
      $plugin_id,
      $plugin_definition,
      $container->get('entity_type.manager'),
      $container->get('language_manager'),
      $container->get('entity.repository')
    );
  }

  /**
   * {@inheritdoc}
   */
  public function usesGroupBy() {
    return FALSE;
  }

  /**
   * {@inheritdoc}
   */
  public function defineOptions() {
    $options = parent::defineOptions();

    $options['destination'] = [
      'default' => FALSE,
    ];

    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    parent::buildOptionsForm($form, $form_state);

    $form['destination'] = [
      '#type' => 'checkbox',
      '#title' => $this->t('Include destination'),
      '#description' => $this->t('Enforce a <code>destination</code> parameter in the link to return the user to the original view upon completing the link action. Most operations include a destination by default and this setting is no longer needed.'),
      '#default_value' => $this->options['destination'],
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function render(ResultRow $values) {
    $entity = $this->getEntity($values);
    // Allow for the case where there is no entity, if we are on a non-required
    // relationship.
    if (empty($entity)) {
      return '';
    }
    $entity = $this->getEntityTranslation($entity, $values);
    $operations = $this->entityTypeManager->getListBuilder($entity->getEntityTypeId())->getOperations($entity);
    if ($this->options['destination']) {
      foreach ($operations as &$operation) {
        if (!isset($operation['query'])) {
          $operation['query'] = [];
        }
        $operation['query'] += $this->getDestinationArray();
      }
    }
    $build = [
      '#type' => 'operations',
      '#links' => $operations,
    ];

    return $build;
  }

  /**
   * {@inheritdoc}
   */
  public function query() {
    // We purposefully do not call parent::query() because we do not want the
    // default query behavior for Views fields. Instead, let the entity
    // translation renderer provide the correct query behavior.
    if ($this->languageManager->isMultilingual()) {
      $this->getEntityTranslationRenderer()->query($this->query, $this->relationship);
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getEntityTypeId() {
    return $this->getEntityType();
  }

  /**
   * {@inheritdoc}
   */
  protected function getEntityTypeManager() {
    return $this->entityTypeManager;
  }

  /**
   * {@inheritdoc}
   */
  protected function getEntityRepository() {
    return $this->entityRepository;
  }

  /**
   * {@inheritdoc}
   */
  protected function getLanguageManager() {
    return $this->languageManager;
  }

  /**
   * {@inheritdoc}
   */
  protected function getView() {
    return $this->view;
  }

  /**
   * {@inheritdoc}
   */
  public function clickSortable() {
    return FALSE;
  }

}
