/**
 * Calculates the difference in months between two dates.
 * @param date1 - The first date.
 * @param date2 - The second date.
 */
function dateDiffInMonths(date1: number, date2: number): number {

	date1 = Number(date1);
	date2 = Number(date2);
	if (date1 <= 0 || date2 <= 0) {
		return 0;
	}

	// Extract year and month from both dates
	const year1 = new Date(date1).getFullYear();
	const year2 = new Date(date2).getFullYear();
	const month1 = new Date(date1).getMonth();
	const month2 = new Date(date2).getMonth();

	// Calculate the difference in months
	if (date1 > date2) {
		return month1 + 12 * year1 - (month2 + 12 * year2);
	}
	return month2 + 12 * year2 - (month1 + 12 * year1);
}

// Example usage:
// console.log(dateDiffInMonths(date1, date2)); // Output: 43

export default dateDiffInMonths;