import numeral from 'numeral';

// ----------------------------------------------------------------------

type InputValue = string | number | null;

export function fNumber(number: InputValue) {
  return numeral(number).format();
}

export function fCurrency(number: InputValue, currency: 'EUR' | 'USD' = 'EUR'): string {
  const parsedNumber = parseFloat(String(number));

  const locale = currency === 'USD' ? 'en-US' : 'de-DE';
  const formatter = new Intl.NumberFormat(locale, {
    style: 'currency',
    currency,
  });

  return formatter.format(parsedNumber);
}

export function fPercent(number: InputValue) {
  const format = number ? numeral(Number(number) / 100).format('0.0%') : '';

  return result(format, '.0');
}

export function fShortenNumber(number: InputValue) {
  const format = number ? numeral(number).format('0.00a') : '';

  return result(format, '.00');
}

export function fData(number: InputValue) {
  const format = number ? numeral(number).format('0.0 b') : '';

  return result(format, '.0');
}

function result(format: string, key = '.00') {
  const isInteger = format.includes(key);

  return isInteger ? format.replace(key, '') : format;
}