From 0d695bba92503861203721ee61fc7dec94f2b53b Mon Sep 17 00:00:00 2001
From: Ashley Harrison <ashley.harrison@grafana.com>
Date: Wed, 11 Jun 2025 14:44:06 +0100
Subject: [PATCH] Internationalisation: Always initialise a default i18n
 instance (#106552)

always initialise a default i18n instance
---
 packages/grafana-i18n/src/i18n.tsx | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/packages/grafana-i18n/src/i18n.tsx b/packages/grafana-i18n/src/i18n.tsx
index 8aeb19681ec..343061a6c42 100644
--- a/packages/grafana-i18n/src/i18n.tsx
+++ b/packages/grafana-i18n/src/i18n.tsx
@@ -30,17 +30,20 @@ export async function loadPluginResources(id: string, language: string, loaders?
 }
 
 // exported for testing
-export async function initDefaultI18nInstance() {
+export function initDefaultI18nInstance() {
   // If the resources are not an object, we need to initialize the plugin translations
   if (getI18nInstance().options?.resources && typeof getI18nInstance().options.resources === 'object') {
     return;
   }
 
-  await getI18nInstance().use(initReactI18next).init({
+  const initPromise = getI18nInstance().use(initReactI18next).init({
     resources: {},
     returnEmptyString: false,
     lng: DEFAULT_LANGUAGE, // this should be the locale of the phrases in our source JSX
   });
+  tFunc = getI18nInstance().t;
+  transComponent = (props: TransProps) => <I18NextTrans shouldUnescape {...props} />;
+  return initPromise;
 }
 
 // exported for testing
@@ -171,6 +174,7 @@ export function addResourceBundle(language: string, namespace: string, resources
 }
 
 export const t: TFunction = (id: string, defaultMessage: string, values?: Record<string, unknown>) => {
+  initDefaultI18nInstance();
   if (!tFunc) {
     if (process.env.NODE_ENV !== 'test') {
       console.warn(
@@ -189,10 +193,12 @@ export const t: TFunction = (id: string, defaultMessage: string, values?: Record
 };
 
 export function useTranslate() {
+  initDefaultI18nInstance();
   return { t };
 }
 
 export function Trans(props: TransProps) {
+  initDefaultI18nInstance();
   const Component = transComponent ?? I18NextTrans;
   return <Component shouldUnescape {...props} />;
 }