import {
  getCountries,
  getCountryCallingCode,
} from 'libphonenumber-js/min';
import { CountryDialCode } from '../models/country-dial-code.model';

const countryNames = new Intl.DisplayNames(['en'], { type: 'region' });

/**
 * Country names and calling codes are derived from libphonenumber-js metadata
 * and the runtime's ISO region names rather than maintained as a local list.
 */
export const COUNTRY_DIAL_CODES: CountryDialCode[] = getCountries()
  .map((code) => ({
    code,
    name: countryNames.of(code) ?? code,
    dialCode: `+${getCountryCallingCode(code)}`,
  }))
  .sort((first, second) => first.name.localeCompare(second.name));