chore: updated supported language list and added functionality to fil…

…ter languages

src/utils/__tests__/lang-utils.spec.ts

@@ -0,0 +1,19 @@
+import { ALL_LANGUAGES } from "../constants";
+import { getAllowedLanguages } from "../lang-utils";
+
+describe("getAllowedLanguages", () => {
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  const { ACH, ...languageList } = ALL_LANGUAGES;
+
+  it("should return all languages if no excluded languages are provided", () => {
+    const allowedLanguages = getAllowedLanguages();
+    expect(allowedLanguages).toEqual(languageList);
+  });
+
+  it("should return all languages except the excluded languages (ex: ID)", () => {
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    const { ID, ...filteredLanguages } = languageList;
+    const allowedLanguages = getAllowedLanguages(["ID"]);
+    expect(allowedLanguages).toEqual(filteredLanguages);
+  });
+});

src/utils/constants.ts

@@ -1,15 +1,19 @@
 export const ALL_LANGUAGES = Object.freeze({
   ACH: "Translations",
+  AR: "العربية",
   EN: "English",
   ES: "Español",
+  BN: "বাংলা",
   DE: "Deutsch",
   FR: "Français",
   ID: "Indonesian",
   IT: "Italiano",
   KO: "한국어",
   PL: "Polish",
   PT: "Português",
+  SW: "Kiswahili",
   RU: "Русский",
+  SI: "සිංහල",
   TR: "Türkçe",
   VI: "Tiếng Việt",
   ZH_CN: "简体中文",

src/utils/lang-utils.ts

@@ -1,5 +1,7 @@
 import { constants } from "@utils/index";
 
+type LanguageCode = keyof typeof constants.ALL_LANGUAGES;
+
 export const getInitialLanguage = () => {
   const url_params = new URLSearchParams(window.location.search);
   const query_lang = url_params.get("lang");
@@ -18,9 +20,7 @@ export const getInitialLanguage = () => {
   return constants.DEFAULT_LANGUAGE;
 };
 
-export const loadIncontextTranslation = (
-  lang: keyof typeof constants.ALL_LANGUAGES
-) => {
+export const loadIncontextTranslation = (lang: LanguageCode) => {
   const is_ach = lang.toUpperCase() === "ACH";
   if (is_ach) {
     const jipt = document.createElement("script");
@@ -34,3 +34,22 @@ export const loadIncontextTranslation = (
     document.head.appendChild(jipt);
   }
 };
+
+/**
+ * Filter out unsupported languages and return an Object containing language code and language name
+ * @param excludedLanguages
+ * @returns Object containing language code and language name
+ */
+export const getAllowedLanguages = (
+  excludedLanguages: Omit<LanguageCode, "ACH">[] = []
+) => {
+  const unsupportedLanguages = ["ACH", ...excludedLanguages];
+  const languageList = Object.keys(constants.ALL_LANGUAGES)
+    .filter((key) => !unsupportedLanguages.includes(key))
+    .reduce((obj: { [key: string]: string }, key) => {
+      obj[key] = constants.ALL_LANGUAGES[key as LanguageCode];
+      return obj;
+    }, {});
+
+  return languageList;
+};