<?php

/**
 * @file
 * Provides a simple user interface for building and maintaining webforms.
 */

/**
 * Implements hook_entity_type_alter().
 */
function webform_ui_entity_type_alter(array &$entity_types) {
  if (isset($entity_types['webform'])) {
    /** @var \Drupal\Core\Entity\ContentEntityTypeInterface $webform_entity_type */
    $webform_entity_type = $entity_types['webform'];

    // Swap the 'default' webform handler with the webform UI entity form
    // and move the old webform source entity webform to a new 'source'
    // webform handler.
    $handlers = $webform_entity_type->getHandlerClasses();
    $handlers['form']['source'] = $handlers['form']['edit'];
    $handlers['form']['edit'] = 'Drupal\webform_ui\WebformUiEntityElementsForm';
    $webform_entity_type->setHandlerClass('form', $handlers['form']);

    // Add 'source' to link template.
    $webform_entity_type->setLinkTemplate('source-form', '/admin/structure/webform/manage/{webform}/source');
  }

  if (isset($entity_types['webform_options'])) {
    /** @var \Drupal\Core\Entity\ContentEntityTypeInterface $webform_entity_type */
    $webform_options_entity_type = $entity_types['webform_options'];

    // Swap the 'default' webform handler with the webform UI option form
    // and move the old webform option source entity webform to a new 'source'
    // webform handler.
    $handlers = $webform_options_entity_type->getHandlerClasses();
    $handlers['form']['source'] = $handlers['form']['edit'];
    $handlers['form']['add'] = 'Drupal\webform_ui\WebformUiOptionsForm';
    $handlers['form']['edit'] = 'Drupal\webform_ui\WebformUiOptionsForm';
    $handlers['form']['duplicate'] = 'Drupal\webform_ui\WebformUiOptionsForm';
    $webform_options_entity_type->setHandlerClass('form', $handlers['form']);

    // Add 'source' to link template.
    $webform_options_entity_type->setLinkTemplate('source-form', '/admin/structure/webform/manage/{webform}/source');
  }
}

/**
 * Implements hook_preprocess_menu_local_action().
 *
 * Add .button--secondary to add page and layout actions.
 *
 * @see Drupal.behaviors.webformUiElementsActionsSecondary
 */
function webform_ui_preprocess_menu_local_action(&$variables) {
  if (\Drupal::routeMatch()->getRouteName() !== 'entity.webform.edit_form') {
    return;
  }

  if (in_array($variables['link']['#url']->getRouteName(), ['entity.webform_ui.element.add_page', 'entity.webform_ui.element.add_layout'])) {
    $variables['link']['#options']['attributes']['class'][] = 'button--secondary';
  }
}