import { ColumnType, ITypeOptions, NumberFormat } from '../../../types';
import { exhaustiveSwitch } from '../../../typeUtils';

/**
 * Get formatted string value for number
 * @param typeOptions number column config
 * @param value number value
 */
export const transformNumberToString = (
  value: number,
  typeOptions: Pick<
    ITypeOptions<ColumnType.NUMBER>,
    'precision' | 'numberFormat'
  >
) => {
  if (!isFinite(value)) return '';

  const precision = typeOptions ? typeOptions.precision : 0;
  const numberFormat = typeOptions.numberFormat ?? NumberFormat.DECIMAL;

  switch (numberFormat) {
    case NumberFormat.DECIMAL:
      return value.toFixed(precision);
    case NumberFormat.PERCENTAGE:
      return `${(value * 100).toFixed(precision)}%`;
    case NumberFormat.DECIMAL_WITH_COMMAS:
      return value.toLocaleString('en', {
        maximumFractionDigits: precision,
        minimumFractionDigits: precision,
      });
    case NumberFormat.CURRENCY:
      return '';
    default:
      return exhaustiveSwitch({
        switchValue: numberFormat,
        returnValue: '',
      })
  }
};