facets_hardcode.module

<?php

function facets_hardcode_preprocess_views_pager_with_summary(&$variables) {
  if (\Drupal\facets_hardcode\FacetsHardcodePathHelper::isFacetPath()) {
    $faceted_path = \Drupal\facets_hardcode\FacetsHardcodePathHelper::getFacetedPath();
    $base_path = \Drupal\facets_hardcode\FacetsHardcodePathHelper::filterFacetsFromPath($faceted_path);

    if ($faceted_path != $base_path) {
      if (isset($variables['items']['pages'])) {
        foreach ($variables['items']['pages'] as $index => $page) {
          $variables['items']['pages'][$index]['href'] = str_replace($base_path, $faceted_path, $page['href']);
        }
      }

      foreach (['next', 'last', 'first', 'previous'] as $key) {
        if (isset($variables['items'][$key])) {
          $variables['items'][$key]['href'] = str_replace($base_path, $faceted_path, $variables['items'][$key]['href']);
        }
      }
    }
  }
}

/**
 * Implements hook_entity_view_alter().
 */
function facets_hardcode_entity_view_alter(array &$build, Drupal\Core\Entity\EntityInterface $entity, \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display) {
  \Drupal\facets_hardcode\FacetsHardcodeMetatagHelper::updateCanonicalUrls($build);
}

function facets_hardcode_preprocess_html(&$variables) {
  $facet_path = \Drupal\facets_hardcode\FacetsHardcodePathHelper::getFacetedPath();

  \Drupal\facets_hardcode\FacetsHardcodeMetatagHelper::setRobotsMetatag($variables['page'], $facet_path);
}