liveramp_integration.module

<?php

/**
 * @file
 * Module file.
 */

use Drupal\Core\Render\Markup;

/**
 * Implements hook_page_attachments().
 */
function liveramp_integration_page_attachments(array &$page) {
  $config = \Drupal::config('liveramp_integration.configuration');
  $appId  = $config->get('app_id');
  $async  = $config->get('async_mode');
  $defer  = $config->get('defer_mode');

  $disableConsent = \Drupal::request()->query->get('disable_gdpr_consent');
  $isDisabled         = (1 === (int) $disableConsent) ? TRUE : FALSE;

  $currentRoute = \Drupal::routeMatch()->getRouteName();

  // Script must be also included on configuration form.
  if (\Drupal::service('router.admin_context')
             ->isAdminRoute() && 'liveramp_integration.configuration_form' !== $currentRoute) {
    return;
  }

  if (empty($appId) || $isDisabled) {
    return;
  }

  // Attach liveramp script.
  $page['#attached']['html_head'][] = [
    [
      '#tag'        => 'script',
      '#attributes' => [
        'src'   => 'https://gdpr-wrapper.privacymanager.io/gdpr/' . $appId . '/gdpr-liveramp.js',
        'async' => ($async) ? TRUE : FALSE,
        'defer' => ($defer) ? TRUE : FALSE,
      ],
      '#weight'     => -1,
    ],
    'liveramp_integration-gdpr-liveramp',
  ];

  $vendors = _liveramp_integration_create_json_list($config->get('vendor_ids'), 'vendorId');

  $script =
    <<< JS
(function () {

  let handle = setInterval(function () {
    if (undefined !== window.__tcfapi) {
      checkConsent();
      clearInterval(handle);
    }
  }, 50);

  let killId = setTimeout(function () {
    for (let i = killId; i > 0; i--) {
      clearInterval(i);
    }
  }, 2000);

})();

function checkConsent() {
  window.__tcfapi('checkConsent', null, function (data, success) {
     const vendorsWithConsentHc = [];

    if (data && data.length) {
        data.forEach((item) => {
            if (item.hasConsent && item.vendorName) {
                vendorsWithConsentHc.push(item);
            }
        });
    }

    window.consentlayer = window.consentlayer || [];
    window.consentlayer.push({
        vendorsWithConsentHc
    });
  }, {
    data: $vendors,
    recheckConsentOnChange: true,
    perVendor: true
  });
}
JS;

  $page['#attached']['html_head'][] = [
    [
      '#tag'    => 'script',
      '#value'  => Markup::create($script),
      '#weight' => -1,
    ],
    'liveramp_integration-check-consent',
  ];
}

/**
 * Create json list.
 *
 * @param array $values
 *   Value.
 * @param string $key
 *   Key.
 *
 * @return false|string
 */
function _liveramp_integration_create_json_list(array $values, $key) {
  $data = [];
  foreach ($values as $value) {
    $data[][$key] = (int) $value;
  }
  return json_encode($data);
}