export function isSameDate(date1: Date, date2: Date): boolean {
  return (
    date1.getFullYear() === date2.getFullYear() &&
    date1.getMonth() === date2.getMonth() &&
    date1.getDate() === date2.getDate()
  );
}

export function isDateBefore(date1: Date, date2: Date): boolean {
  return date1.getTime() < date2.getTime();
}

export function isDateAfter(date1: Date, date2: Date): boolean {
  return date1.getTime() > date2.getTime();
}

export function isDateBetween(date: Date, start: Date, end: Date): boolean {
  const time = date.getTime();
  return time >= start.getTime() && time <= end.getTime();
}

export function normalizeDate(date: Date): Date {
  return new Date(date.getFullYear(), date.getMonth(), date.getDate());
}

export function isValidDate(date: any): date is Date {
  return date instanceof Date && !isNaN(date.getTime());
}