Days til Christmas

- (NSInteger)daysLeftTillChristmas {
	// prepare to clean up
	NSAutoreleasePool *daysPool = [[NSAutoreleasePool alloc] init];
	
	// get day
	NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
	NSDate *today = [NSDate date];
	NSDateComponents *weekdayComponents = [gregorian components:(NSDayCalendarUnit | NSMonthCalendarUnit | NSYearCalendarUnit) fromDate:today];
	
	// test for after 12/25
	//NSDate *today = [NSDate dateWithString:@"2008-12-25 22:00:00 -0500"];
	//NSDateComponents *weekdayComponents = [gregorian components:(NSDayCalendarUnit | NSMonthCalendarUnit | NSYearCalendarUnit) fromDate:today];
	NSLog(@"%@", today);
	// end test
	
	// get integer days for calculating
	NSInteger month = [weekdayComponents month];
	NSInteger day = [weekdayComponents day]; 
	NSInteger year = [weekdayComponents year];
	
	// check for next christmas
	if (month == 12 && day > 25) {
		year++;
	}
	
	// get christmas day
	NSDateComponents *christmasComponents = [[NSDateComponents alloc] init];
	[christmasComponents setMonth:12];
	[christmasComponents setDay:25];
	[christmasComponents setYear:year];
	[christmasComponents setHour:0];
	[christmasComponents setMinute:0];
	NSDate *christmasDay = [gregorian dateFromComponents:christmasComponents];
	
	// calculate days
	NSTimeInterval secondsPerDay = 24 * 60 * 60;
	NSTimeInterval daysTilChristmas = [christmasDay timeIntervalSinceDate:today];
	NSInteger totalDaysLeft = (NSInteger) (daysTilChristmas / secondsPerDay) + 1;
	if (month == 12 && day == 25) {
		totalDaysLeft = 0;
	}
	
	// memory cleaning...
	[christmasComponents release];
	[gregorian release];
	[daysPool release];
	
	NSLog(@"Days Left: %d", totalDaysLeft);
	//totalDaysLeft = 18;
	// return
	return totalDaysLeft;
}