---

export function formatToString(value: unknown): string {
  if (value === null || value === undefined) {
    return '';
  }

  if (typeof value === 'string') {
    return value;
  }

  if (typeof value === 'number' || typeof value === 'boolean' || typeof value === 'bigint') {
    return String(value);
  }

  if (typeof value === 'object' && 'year' in value && 'month' in value && 'day' in value) {
    const businessDay = value as { year: number; month: number; day: number };

    return `${businessDay.year}.${String(businessDay.month).padStart(2, '0')}.${String(businessDay.day).padStart(2, '0')}`;
  }

  return String(value);
}