drupal-caravane/web/modules/custom/decoupled/decoupled.module

<?php

/**
 * @file
 * Contains decoupled.module.
 */

use Drupal\Core\Routing\RouteMatchInterface;
// use Drupal\pathauto\PathautoPatternInterface;
// use Drupal\pathauto\PathautoPatternManagerInterface;
use Drupal\pathauto\Entity\PathautoPattern;

/**
 * Implements hook_help().
 */
function decoupled_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Main module help for the materio_decoupled module.
    case 'help.page.materio_decoupled':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('helpers for progressive decoupling') . '</p>';
      return $output;

    default:
  }
}


/**
 * Implements hook_page_attachments().
 * @param array $attachments
 */
function decoupled_page_attachments(array &$attachments) {
  $redirect = false;
  $current_path = \Drupal::service('path.current')->getPath();
  $route_name = \Drupal::routeMatch()->getRouteName();
  $current_language = \Drupal::languageManager()->getCurrentLanguage()->getId();
  $is_front = \Drupal::service('path.matcher')->isFrontPage();
  if (!$is_front) {
    $redirect = true;
  }
  if(preg_match('/^\/?user\/.*/', $current_path)){
    $redirect = false;
  }

  $entity_type = null;
  $entity_bundle = null;
  $entity_id = null;
  $entity_uuid = null;
  $base_alias = null;

  foreach (['node', 'taxonomy_term'] as $type) {
    $entity = \Drupal::routeMatch()->getParameter($type);
    if($entity){
      $entity_type = $type;
      $entity_bundle = $entity->bundle();
      $entity_id = $entity->id();
      $entity_uuid = $entity->uuid();
      
      // $pathauto_patterns = \Drupal::entityTypeManager()->getStorage('pathauto_pattern')->loadByProperties(['type' => "canonical_entities:".$entity_type]);
      // foreach ($pathauto_patterns as $id => $pattern) {
      //   $conditions = $pattern->getSelectionConditions();
      //   $condition_config = $conditions->getConfiguration();
      //   foreach ($condition_config as $key => $config) {
      //     $bundles = array_keys($config['bundles']);
      //     if (in_array($entity_bundle, $bundles)) {
      //       $motif = $pattern->getPattern();
      //       preg_match('/(\/.+)+\/\[[^]]+\]/', $motif, $matches);
      //       $base_alias = $matches[1];
      //       break 2;
      //     }
      //   }
      // }
  
      break;
    }
  }



  // route_parameters:'".json_encode($route_parameters)."',\n
  $js_str = "var drupalDecoupled = {\n
    sys_path:'".$current_path."',\n
    route_name:'".$route_name."',\n
    is_front:".($is_front ? 'true':'false').",\n
    base_alias:'".$base_alias."',\n
    redirect:".($redirect ? 'true':'false').",\n
    lang_code:'".$current_language."',\n
    entity_type:'".$entity_type."',\n
    entity_bundle:'".$entity_bundle."',\n
    entity_id:'".$entity_id."',\n
    entity_uuid:'".$entity_uuid."',\n
  };";

  $attachments['#attached']['html_head'][] = [
    [
      '#type' => 'html_tag',
      '#tag' => 'script',
      '#value' => $js_str,
      '#weight' => -999,
      '#group' => 'decoupled'
    ],
    // A key, to make it possible to recognize this HTML  element when altering.
    'decoupled',
  ];
}