//@flow
import type { FiatUnit } from "../types";
// inspired by https://github.com/smirzaei/currency-formatter/blob/master/currencies.json

function fiat(name, ticker, symbol, magnitude): FiatUnit {
  return {
    ticker,
    code: ticker, // code is always the ticker (when formatting currencies)
    name,
    symbol,
    magnitude,
    showAllDigits: true
  };
}

const units: { [key: string]: FiatUnit } = {
  AED: fiat("Emirati Dirham", "AED", "د.إ.", 2),
  AUD: fiat("Australian Dollar", "AUD", "$", 2),
  BGN: fiat("Bulgarian lev", "BGN", "лв.", 2),
  BHD: fiat("Bahraini Dinar", "BHD", "د.ب.", 3),
  BRL: fiat("Brazilian real", "BRL", "R$", 2),
  CAD: fiat("Canadian Dollar", "CAD", "$", 2),
  CHF: fiat("Swiss Franc", "CHF", "CHF", 2),
  CLP: fiat("Chilean Peso", "CLP", "$", 2),
  CNY: fiat("Yuan or chinese renminbi", "CNY", "¥", 2),
  CRC: fiat("Costa Rican colón", "CRC", "₡", 2),
  CZK: fiat("Czech koruna", "CZK", "Kč", 2),
  DKK: fiat("Danish krone", "DKK", "kr.", 2),
  EUR: fiat("Euro", "EUR", "€", 2),
  GBP: fiat("British Pound", "GBP", "£", 2),
  GHS: fiat("Ghanaian Cedi", "GHS", "₵", 2),
  HKD: fiat("Hong Kong dollar", "HKD", "HK$", 2),
  HRK: fiat("Croatian kuna", "HRK", "kn", 2),
  HUF: fiat("Hungarian forint", "HUF", "Ft", 2),
  IDR: fiat("Indonesian Rupiah", "IDR", "Rp", 0),
  ILS: fiat("Israeli Shekel", "ILS", "₪", 2),
  INR: fiat("Indian Rupee", "INR", "₹", 2),
  IRR: fiat("Iranian Rial", "IRR", "﷼", 2),
  JPY: fiat("Japanese yen", "JPY", "¥", 0),
  KES: fiat("Kenyan Shilling", "KES", "S", 2),
  KHR: fiat("Cambodian Riel", "KHR", "៛", 0),
  KRW: fiat("South Korean won", "KRW", "₩", 0),
  MUR: fiat("Mauritian rupee", "MUR", "₨", 2),
  MXN: fiat("Mexico Peso", "MXN", "$", 2),
  MYR: fiat("Malaysian Ringgit", "MYR", "RM", 2),
  NGN: fiat("Nigerian Naira", "NGN", "₦", 2),
  NOK: fiat("Norwegian krone", "NOK", "kr", 2),
  NZD: fiat("New Zealand Dollar", "NZD", "$", 2),
  PHP: fiat("Philippine Peso", "PHP", "₱", 2),
  PKR: fiat("Pakistani Rupee", "PKR", "₨", 2),
  PLN: fiat("Polish złoty", "PLN", "zł", 2),
  RON: fiat("Romanian leu", "RON", "lei", 2),
  RUB: fiat("Russian Rouble", "RUB", "₽", 2),
  SEK: fiat("Swedish krona", "SEK", "kr", 2),
  SGD: fiat("Singapore Dollar", "SGD", "$", 2),
  THB: fiat("Thai Baht", "THB", "฿", 2),
  TRY: fiat("Turkish Lira", "TRY", "TL", 2),
  TZS: fiat("Tanzanian Shilling", "TZS", "TSh", 2),
  UAH: fiat("Ukrainian Hryvnia", "UAH", "₴", 2),
  UGX: fiat("Ugandan Shilling", "UGX", "USh", 2),
  USD: fiat("US Dollar", "USD", "$", 2),
  VEF: fiat("Venezuelan bolivar", "VEF", "Bs. F.", 2),
  VND: fiat("Vietnamese Dong", "VND", "₫", 1),
  VUV: fiat("Ni-Vanuatu Vatu", "VUV", "VT", 0),
  ZAR: fiat("South African Rand", "ZAR", "R", 2)
};

export type Fiat = $Keys<typeof units>;

export function hasFiatUnit(fiat: string): boolean {
  return fiat in units;
}

export function getFiatUnit(fiat: string): FiatUnit {
  const unit: FiatUnit = units[fiat];
  if (!unit) {
    throw new Error(`unit "${fiat}" not found`);
  }
  return unit;
}

const list = Object.keys(units).map(k => units[k]);

export function listFiats(): FiatUnit[] {
  return list;
}