import starlightConfig from "virtual:starlight/user-config";

export const DefaultLocale =
  starlightConfig.defaultLocale.locale === "root"
    ? undefined
    : starlightConfig.defaultLocale.locale;

export function getLangFromLocale(locale: Locale): string {
  const lang = locale
    ? starlightConfig.locales?.[locale]?.lang
    : starlightConfig.locales?.root?.lang;
  const defaultLang =
    starlightConfig.defaultLocale.lang ?? starlightConfig.defaultLocale.locale;
  return lang ?? defaultLang ?? "en";
}

export type Locale = string | undefined;