apigee_api_catalog-8.x-2.4/modules/apigee_graphql_doc/apigee_graphql_doc.module

<?php

/**
 * @file
 * Copyright 2021 Google Inc.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 2 as published by the
 * Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 * License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

/**
 * Primary module hooks for Apigee GraphQL Doc module.
 *
 */

use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;

/**
 * Implements hook_theme().
 */
function apigee_graphql_doc_theme($existing, $type, $theme, $path) {
  return [
    'apigee_graphql_doc_file_link_field_item' => [
      'variables' => [
        'field_name' => NULL,
        'delta' => NULL,
      ],
    ],
  ];
}

/**
 * Implements hook_ENTITY_TYPE_load().
 */
function apigee_graphql_doc_node_load($entities) {
  foreach ($entities as $entity) {
    if ($entity->bundle() != 'graphql_doc') {
      return;
    }
    if ($entity->get('field_graphql_spec_source_type')->value === 'file') {
      $spec_value = $entity->get('field_graphql_spec')->isEmpty() ? [] : $entity->get('field_graphql_spec')->getValue()[0];
      if (!empty($spec_value['target_id'])) {
        /* @var \Drupal\file\Entity\File $file */
        $file = \Drupal::entityTypeManager()
          ->getStorage('file')
          ->load($spec_value['target_id']);
  
        if ($file) {
          $path = '/node/' . $entity->id() . '/graphql';
          $entity->set('field_graphql_spec_file_link', ['uri' => Url::fromUri('base:' . $path , ['absolute' => TRUE])->toString()]);
        }
      }
    }
  }
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function apigee_graphql_doc_form_node_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  $node = $form_state->getFormObject()->getEntity();
  if ($node->bundle() != 'graphql_doc') {
    return;
  }

  $form['field_graphql_spec']['#states'] = [
    'visible' => [
      ':input[name="field_graphql_spec_source_type"]' => ['value' => 'file'],
    ],
  ];

  // @todo: #states does not work on managed files.
  // @see: https://www.drupal.org/project/drupal/issues/2847425
  $form['field_graphql_spec']['widget'][0]['#states'] = [
    'required' => [
      ':input[name="field_graphql_spec_source_type"]' => ['value' => 'file'],
    ],
  ];

  $form['field_graphql_spec_file_link']['#states'] = [
    'visible' => [
      [':input[name="field_graphql_spec_source_type"]' => ['value' => 'url']],
    ],
  ];

  $form['field_graphql_spec_file_link']['widget'][0]['uri']['#states'] = [
    'required' => [
      [':input[name="field_graphql_spec_source_type"]' => ['value' => 'url']],
    ],
  ];

  $form['#validate'][] = '_apigee_graphql_form_node_form_validate';
}

/**
 * Form validator for the "graphql_doc" node bundle.
 *
 * @param array $form
 *   The form.
 * @param \Drupal\Core\Form\FormStateInterface $form_state
 *   The form state.
 */
function _apigee_graphql_form_node_form_validate(&$form, FormStateInterface $form_state) {
  $values = $form_state->getValues();

  if (empty($values['field_graphql_spec_source_type'])) {
    return;
  }

  // Make sure the field_graphql_spec (file) or field_graphql_spec_file_link (link)
  // is not empty, according to what was selected as the file source.
  $source = $values['field_graphql_spec_source_type'][0]['value'] ?: NULL;
  if ($source == 'file' && empty($values['field_graphql_spec'][0]['fids'][0])) {
    $form_state->setErrorByName('field_graphql_spec', t('Provide an GraphQL specification file.'));
  }
  elseif ($source == 'url' && empty($values['field_graphql_spec_file_link'][0]['uri'])) {
    $form_state->setErrorByName('field_graphql_spec_file_link', t('Provide the URL to an GraphQL specification file.'));
  }
}