LF-5318 Adjust sagas -- take the language from invite token

Author: kathyavini

packages/webapp/src/containers/Callback/index.jsx

@@ -17,7 +17,6 @@ function Callback() {
       dispatch(
         patchUserFarmStatus({
           invite_token: params.get('invite_token'),
-          language: params.get('language'),
         }),
       );
     } else {

packages/webapp/src/containers/Callback/saga.js

@@ -50,7 +50,7 @@ export function* validateResetTokenSaga({ payload: { reset_token } }) {
 export const patchUserFarmStatus = createAction('patchUserFarmStatusSaga');
 
 export function* patchUserFarmStatusSaga({ payload }) {
-  const { invite_token, language } = payload;
+  const { invite_token } = payload;
   try {
     const result = yield call(
       axios.patch,
@@ -76,13 +76,11 @@ export function* patchUserFarmStatusSaga({ payload }) {
     history.push('/consent');
   } catch (e) {
     if (e?.response?.status === 404) {
-      // and message === 'user does not exist
-      console.log(e);
+      // user does not exist yet; the invite token carries the sender's selected language
+      const language = decodeToken(invite_token)?.language_preference || 'en';
       localStorage.setItem('litefarm_lang', language);
-      const requestedLang = getLanguageFromLocalStorage();
-      const targetLang = i18n.options.supportedLngs?.includes(requestedLang) ? requestedLang : 'en';
-      if (i18n.language !== targetLang) {
-        i18n.changeLanguage(targetLang);
+      if (i18n.language !== language) {
+        i18n.changeLanguage(language);
       }
       history.push('/accept_invitation/sign_up', invite_token);
     } else if (e?.response?.status === 401) {