<?php

namespace Drupal\webform;

use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Component\Uuid\Php;
use Drupal\Core\Url;

/**
 * Provides a webform to duplicate existing submissions.
 */
class WebformSubmissionDuplicateForm extends WebformSubmissionForm {

  /**
   * {@inheritdoc}
   */
  public function setEntity(EntityInterface $entity) {
    /** @var \Drupal\webform\WebformSubmissionInterface $entity */
    $entity = clone $entity;

    // Clear IDs.
    $entity->set('uuid', (new Php())->generate());
    $entity->set('sid', NULL);
    $entity->set('serial', NULL);

    // Clear state.
    $entity->set('in_draft', FALSE);

    // Create timestamps.
    $entity->set('created', NULL);
    $entity->set('changed', NULL);
    $entity->set('completed', NULL);

    // Clear admin notes and sticky.
    $entity->set('notes', '');
    $entity->set('sticky', FALSE);

    $this->messageManager->setWebformSubmission($entity);
    $this->messageManager->setWebform($entity->getWebform());
    $this->messageManager->setSourceEntity($entity->getSourceEntity());

    $this->entity = $entity;
    return $this;
  }

  /**
   * Set webform state confirmation redirect and message.
   *
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   */
  protected function setConfirmation(FormStateInterface $form_state) {
    parent::setConfirmation($form_state);

    // If the form is just reloading the duplicate form, redirect to the
    // new submission.
    $redirect = $form_state->getRedirect();
    $route_name = $this->getRouteMatch()->getRouteName();
    if ($redirect instanceof Url && $redirect->getRouteName() === $route_name) {
      /** @var \Drupal\webform\WebformSubmissionInterface $entity */
      $webform_submission = $this->entity;
      $webform = $webform_submission->getWebform();
      $source_entity = $webform_submission->getSourceEntity();

      $redirect_route_name = $this->requestHandler->getRouteName($webform_submission, $source_entity, 'webform_submission.canonical');
      $redirect_route_parameters = $this->requestHandler->getRouteParameters($webform_submission, $source_entity);
      $form_state->setRedirect($redirect_route_name, $redirect_route_parameters);
    }
  }

}