chore: Handle translation of /developers links in main menu for Spanish

web/themes/interledger/interledger.theme

@@ -1,5 +1,7 @@
 <?php
 
+use \Drupal\Core\Url;
+
 /**
  * Implements hook_preprocess()
  * 
@@ -32,3 +34,35 @@ function interledger_preprocess_html(&$variables) {
       $variables['attributes']['class'][] = 'page-' . $statusCode;
   }
 }
+
+/**
+ * Prepares variables for the menu--main template.
+ *
+ * Default template: menu--main.html.twig.
+ *
+ * See the menu--main.html.twig template for the list of variables.
+ */
+function interledger_preprocess_menu__main(&$variables) {
+  $default_lang_code = strtolower(\Drupal::languageManager()->getDefaultLanguage()->getId());
+  $lang_code = strtolower(\Drupal::languageManager()->getCurrentLanguage()->getId());
+  $needs_translation = $lang_code !== $default_lang_code;
+
+  if ($variables['menu_name'] === 'main' && $needs_translation) {
+    $path_to_translate = '/developers';
+    $translated_path = 'developers/' . $lang_code;
+    foreach ($variables['items'] as $key => $item) {
+      if (!empty($item['below']) && is_array($item["below"])) {
+        foreach ($item['below'] as $skey => $submenu) {
+          if (isset($submenu['url']) && is_object($submenu['url'])) {
+            $url_string = strtolower($submenu['url']->toString());
+            if (str_starts_with($url_string, $path_to_translate)) {
+              $translationStr = substr_replace($url_string, $translated_path, 0, strlen($path_to_translate));
+              $translationUrl = Url::fromUri('base:' . $translationStr);
+              $variables['items'][$key]['below'][$skey]['url'] = $translationUrl;
+            }
+          }
+        }
+      }
+    }
+  }
+}