i18n.ts

import { notFound } from 'next/navigation';
import { getRequestConfig } from 'next-intl/server';

enum LocalePrefixes {
  ALWAYS = 'always',
  NEVER = 'never',
  ASNEEDED = 'as-needed', // removes prefix on default locale
}

const locales = ['en'] as const;

type LocalePrefixesType = `${LocalePrefixes}`;

// Temporary we use NEVER prefix to prioritize accept-language header
// & disable internationalized routes due to incomplete multilingual implementation
const localePrefix: LocalePrefixesType = LocalePrefixes.NEVER;
const defaultLocale = 'en';

type LocaleType = (typeof locales)[number];

export default getRequestConfig(async (params) => {
  let lang = params.locale as LocaleType // eslint-disable-line

  if (!locales.includes(lang)) notFound();

  return {
    // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
    messages: await import(`./messages/${lang}.json`),
  };
});

export { LocalePrefixes, locales, localePrefix, defaultLocale };
export type { LocaleType };