<?php

/**
 * @file
 * Provides a form element to collect valid location information using Google Maps API's Geocoding and Places Autocomplete.
 */

use Drupal\Core\Asset\AttachedAssetsInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;

/**
 * Implements hook_webform_libraries_info().
 */
function webform_location_geocomplete_webform_libraries_info() {
  $libraries = [];
  $libraries['jquery.geocomplete'] = [
    'title' => t('jQuery: Geocoding and Places Autocomplete Plugin'),
    'description' => t("Geocomple is an advanced jQuery plugin that wraps the Google Maps API's Geocoding and Places Autocomplete services."),
    'notes' => t('Geocomplete is used by the location element.'),
    'homepage_url' => Url::fromUri('http://ubilabs.github.io/geocomplete/'),
    'download_url' => Url::fromUri('https://github.com/ubilabs/geocomplete/archive/1.7.0.zip'),
    'version' => '1.7.0',
    'elements' => ['webform_location_geocomplete'],
    'optional' => FALSE,
    'deprecated' => t('The jQuery: Geocoding and Places Autocomplete Plugin library is not being maintained. It has been <a href=":href">deprecated</a> and will be removed in Webform 7.0.', [':href' => 'https://www.drupal.org/node/2991275']),
  ];
  return $libraries;
}

/**
 * Implements hook_js_alter().
 */
function webform_location_geocomplete_js_alter(&$javascript, AttachedAssetsInterface $assets) {
  // Add Google API key required by webform/libraries.jquery.geocomplete
  // which is dependency for webform_location_geocomplete/webform_location_geocomplete.element.
  //
  // @see \Drupal\webform_location_geocomplete\Element\WebformLocationGeocomplete::processWebformComposite
  // @see webform_location_geocomplete.libraries.yml
  $settings = $assets->getSettings();
  if (!empty($settings['webform']['location']['geocomplete']['api_key']) && isset($javascript['https://maps.googleapis.com/maps/api/js?key=API_KEY&libraries=places'])) {
    $api_key = $settings['webform']['location']['geocomplete']['api_key'];
    $javascript['https://maps.googleapis.com/maps/api/js?key=API_KEY&libraries=places']['data'] = "https://maps.googleapis.com/maps/api/js?key=$api_key&libraries=places";
    unset($settings['webform']['location']['geocomplete']['api_key']);
    $assets->setSettings($settings);
  }
}

/**
 * Implements hook_webform_admin_third_party_settings_form_alter().
 */
function webform_location_geocomplete_webform_admin_third_party_settings_form_alter(&$form, FormStateInterface $form_state) {
  /** @var \Drupal\webform\WebformThirdPartySettingsManagerInterface $third_party_settings_manager */
  $third_party_settings_manager = \Drupal::service('webform.third_party_settings_manager');
  $default_google_maps_api_key = $third_party_settings_manager->getThirdPartySetting('webform_location_geocomplete', 'default_google_maps_api_key');

  // Location geocomplete.
  $form['third_party_settings']['webform_location_geocomplete'] = [
    '#type' => 'details',
    '#title' => t('Location geocomplete'),
    '#open' => TRUE,
  ];
  $form['third_party_settings']['webform_location_geocomplete']['default_google_maps_api_key'] = [
    '#type' => 'textfield',
    '#title' => t('Google Maps API key'),
    '#description' => t('Google requires users to use a valid API key. Using the <a href="https://console.developers.google.com/apis">Google API Manager</a>, you can enable the <em>Google Maps JavaScript API</em>. That will create (or reuse) a <em>Browser key</em> which you can paste here.'),
    '#default_value' => $default_google_maps_api_key,
  ];
}
