fullcalendar_library.module

<?php

define('FULLCALENDAR_JS_CDN', 'https://cdn.jsdelivr.net/npm/fullcalendar@3.10.2/dist/fullcalendar.min.js');
define('FULLCALENDAR_LOCALE_JS_CDN', 'https://cdn.jsdelivr.net/npm/fullcalendar@3.10.2/dist/locale-all.js');
define('FULLCALENDAR_CSS_CDN', 'https://cdn.jsdelivr.net/npm/fullcalendar@3.10.2/dist/fullcalendar.min.css');
define('FULLCALENDAR_PRINT_CSS_CDN', 'https://cdn.jsdelivr.net/npm/fullcalendar@3.10.2/dist/fullcalendar.print.min.css');
define('FULLCALENDAR_SCHEDULER_JS_CDN', 'https://cdn.jsdelivr.net/npm/fullcalendar-scheduler@1.10.1/dist/scheduler.min.js');
define('FULLCALENDAR_SCHEDULER_CSS_CDN', 'https://cdn.jsdelivr.net/npm/fullcalendar-scheduler@1.10.1/dist/scheduler.min.css');
define('MOMENT_JS_CDN', 'https://cdn.jsdelivr.net/npm/moment@2.27.0/moment.min.js');

/**
 * Implements hook_library_info_alter().
 */
function fullcalendar_library_library_info_alter(&$libraries, $extension) {
  if ($extension == 'fullcalendar_library') {
    if (!file_exists(DRUPAL_ROOT . '/libraries/fullcalendar/lib/moment.min.js')) {
      unset($libraries['fullcalendar']['js']['/libraries/fullcalendar/lib/moment.min.js']);
      $libraries['fullcalendar']['js'][MOMENT_JS_CDN] = ['type' => 'external', 'minified' => TRUE];
    }

    if (!file_exists(DRUPAL_ROOT . '/libraries/fullcalendar/fullcalendar.min.js')) {
      unset($libraries['fullcalendar']['js']['/libraries/fullcalendar/fullcalendar.min.js']);
      $libraries['fullcalendar']['js'][FULLCALENDAR_JS_CDN] = ['type' => 'external', 'minified' => TRUE];
    }

    if (!file_exists(DRUPAL_ROOT . '/libraries/fullcalendar/locale-all.js')) {
      unset($libraries['fullcalendar']['js']['/libraries/fullcalendar/locale-all.js']);
      $libraries['fullcalendar']['js'][FULLCALENDAR_LOCALE_JS_CDN] = ['type' => 'external', 'minified' => TRUE];
    }

    if (!file_exists(DRUPAL_ROOT . '/libraries/fullcalendar/fullcalendar.min.css')) {
      unset($libraries['fullcalendar']['css']['theme']['/libraries/fullcalendar/fullcalendar.min.css']);
      $libraries['fullcalendar']['css']['theme'][FULLCALENDAR_CSS_CDN] = ['type' => 'external', 'minified' => TRUE, 'media' => 'screen'];
    }

    if (!file_exists(DRUPAL_ROOT . '/libraries/fullcalendar/fullcalendar.print.min.css')) {
      unset($libraries['fullcalendar']['css']['theme']['/libraries/fullcalendar/fullcalendar.print.min.css']);
      $libraries['fullcalendar']['css']['theme'][FULLCALENDAR_PRINT_CSS_CDN] = ['type' => 'external', 'minified' => TRUE, 'media' => 'print'];
    }

    if (!file_exists(DRUPAL_ROOT . '/libraries/fullcalendar-scheduler/scheduler.min.js')) {
      unset($libraries['fullcalendar-scheduler']['js']['/libraries/fullcalendar-scheduler/scheduler.min.js']);
      $libraries['fullcalendar-scheduler']['js'][FULLCALENDAR_SCHEDULER_JS_CDN] = ['type' => 'external', 'minified' => TRUE];
    }

    if (!file_exists(DRUPAL_ROOT . '/libraries/fullcalendar-scheduler/scheduler.min.css')) {
      unset($libraries['fullcalendar-scheduler']['css']['theme']['/libraries/fullcalendar-scheduler/scheduler.min.css']);
      $libraries['fullcalendar-scheduler']['css']['theme'][FULLCALENDAR_SCHEDULER_CSS_CDN] = ['type' => 'external', 'minified' => TRUE];
    }
  }
}