/**
 * 
 */

/**
 * @author Musard Balliu
 *
 * @date Sep 20, 2015
 *
 */

public class Date {

	// State of a Date object
	int day;
	int month; // between  1 and 12
	int year; // from 1900 on

	// global variable, not part of the state
	private static String[] monthInEnglish = {
		"january", "february", "march", "april",
		"may", "june", "july", "august",
		"september", "october", "november", "december"
	};

	public Date(int y, int m, int d) {
		year = y;
		month = m;
		day = d;

		checkData();
	}

	public Date(int m, int d) {
		this(2008, m, d);
	}

	public Date(int d) {
		this(1, d);
	}

	public Date() {
		this(1985, 1, 13);
	}

	private void checkData() {
		int[] daysOfMonth = getDaysOfMonth();

		if (year < 1900 || month < 1 || month > 12
				|| day < 1 || day > daysOfMonth[month - 1])
			System.out.println("Illegal date");
	}

	private boolean isLeapYear(int year) {
		return year % 400 == 0 || (year % 4 == 0 && year % 100 != 0);
	}

	public String toString() {
		return day + " " + monthInEnglish[month - 1] + " " + year;
	}

	private int[] getDaysOfMonth() {
		int[] daysOfMonth = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
		if (isLeapYear(year))
			daysOfMonth[1] = 29;

		return daysOfMonth;
	}

	public boolean precede(Date otherDate) {
		return this.daysPassedSinceYearStart() <
				otherDate.daysPassedSinceYearStart();
	}

	public int daysPassedSinceYearStart() {
		int result = day;
		int[] daysOfMonth = getDaysOfMonth();

		for (int pos = 0; pos < month - 1; pos++)
			result += daysOfMonth[pos];

		return result;
	}

	public int daysPassedSinceVeryStart() {
		int result = daysPassedSinceYearStart();
		for (int pos = 1900; pos < year - 1; pos++)
			result += isLeapYear(pos) ? 366 : 365;

		return result;
	}
}