Use cds.context.locale instead of hardcoded en

lib/utils.js

@@ -20,6 +20,10 @@ const messages = {
   EMPTY_OBJECT_FOR_NOTIFY: "Empty object is passed a single parameter to notify function.",
   NO_OBJECT_FOR_NOTIFY: "An object must be passed to notify function."
 };
+//See: https://help.sap.com/docs/build-work-zone-standard-edition/sap-build-work-zone-standard-edition/developing-cloud-foundry-applications-with-notifications
+const supportedANSLanguages = {AF: 1, AR: 1, BG: 1, CA: 1, ZH: 1, ZF: 1, HR: 1, CS: 1, DA: 1, NL: 1, EN: 1, ET: 1, FI: 1, FR: 1, KM: 1, DE: 1, EL: 1, HE: 1, HU: 1, IS: 1, ID: 1, IT: 1, HI: 1, JA: 1, KO: 1, LV: 1, LT: 1, MS: 1, NO: 1, NB: 1, PL: 1, PT: 1, Z1: 1, RO: 1, RU: 1, SR: 1, SH: 1, SK: 1, VI: 1, SL: 1, ES: 1, SV: 1, TH: 1, TR: 1, UK: 1, IW: 1, IN: 1, ZH_HANS: 1, ZH_HANT: 1, ZH_CN: 1, ZH_TW: 1}
+
+const sanitizedLocale = () => cds.context?.locale && supportedANSLanguages[cds.context.locale] != undefined ? cds.context.locale : 'en'
 
 function validateNotificationTypes(notificationTypes) {
   for(let notificationType of notificationTypes){
@@ -141,14 +145,14 @@ function buildDefaultNotification(
   const properties = [
     {
       Key: "title",
-      Language: "en",
+      Language: sanitizedLocale(),
       Value: title,
       Type: "String",
       IsSensitive: false,
     },
     {
       Key: "description",
-      Language: "en",
+      Language: sanitizedLocale(),
       Value: description,
       Type: "String",
       IsSensitive: false,
@@ -172,7 +176,7 @@ function buildCustomNotification(_) {
     Recipients: _.Recipients || _.recipients?.map(id => ({ RecipientId: id })),
     Priority: _.Priority || _.priority || "NEUTRAL",
     Properties: _.Properties || Object.entries(_.data).map(([k,v]) => ({
-      Key:k, Value:v, Language: "en", Type: typeof v, // IsSensitive: false
+      Key:k, Value:v, Language: sanitizedLocale(), Type: typeof v, IsSensitive: true //Is sensitive so all data is encrypted and stored in DB in ANS
     })),
 
     // Low-level API properties