export interface CountryOption {
  code: string;
  name: string;
}

const ISO_COUNTRY_CODES = `
AD AE AF AG AI AL AM AO AQ AR AS AT AU AW AX AZ BA BB BD BE BF BG BH BI BJ BL BM BN BO BQ BR BS BT BV BW BY BZ
CA CC CD CF CG CH CI CK CL CM CN CO CR CU CV CW CX CY CZ DE DJ DK DM DO DZ EC EE EG EH ER ES ET FI FJ FK FM FO FR
GA GB GD GE GF GG GH GI GL GM GN GP GQ GR GS GT GU GW GY HK HM HN HR HT HU ID IE IL IM IN IO IQ IR IS IT JE JM JO JP
KE KG KH KI KM KN KP KR KW KY KZ LA LB LC LI LK LR LS LT LU LV LY MA MC MD ME MF MG MH MK ML MM MN MO MP MQ MR MS MT
MU MV MW MX MY MZ NA NC NE NF NG NI NL NO NP NR NU NZ OM PA PE PF PG PH PK PL PM PN PR PS PT PW PY QA RE RO RS RU RW
SA SB SC SD SE SG SH SI SJ SK SL SM SN SO SR SS ST SV SX SY SZ TC TD TF TG TH TJ TK TL TM TN TO TR TT TV TW TZ UA UG
UM US UY UZ VA VC VE VG VI VN VU WF WS YE YT ZA ZM ZW
`
  .trim()
  .split(/\s+/);

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

export const COUNTRIES: CountryOption[] = ISO_COUNTRY_CODES.map((code) => ({
  code,
  name: regionNames.of(code) || code,
})).sort((a, b) => a.name.localeCompare(b.name));

export const getCountryName = (countryCode: string) =>
  COUNTRIES.find((country) => country.code === countryCode)?.name || countryCode;