import i18n from "i18next";
import ISO6391 from "iso-639-1";
import { initReactI18next } from "react-i18next";

import { locales } from "@/assets/languages";

// Languages
const langCodes = Object.keys(locales);
const resources = Object.fromEntries(
  Object.entries(locales).map((entry) => [entry[0], { translation: entry[1] }])
);
i18n.use(initReactI18next).init({
  fallbackLng: "en",
  resources,
  interpolation: {
    escapeValue: false, // not needed for react as it escapes by default
  },
});

export const appLanguageOptions = langCodes.map((lang) => {
  if (lang === "pirate") {
    return {
      code: "pirate",
      name: "Pirate",
      nativeName: "Pirate Tongue",
    };
  }

  if (lang === "minion") {
    return {
      code: "minion",
      name: "Minion",
      nativeName: "Minionese",
    };
  }

  const [langObj] = ISO6391.getLanguages([lang]);
  if (!langObj)
    throw new Error(`Language with code ${lang} cannot be found in database`);
  return langObj;
});

export default i18n;