////////////////////////////////////////////////////////////////////////////////
   // MillScript: an Open Spice interpreter and batch website creation tool
   // Copyright (C) 2001-2004 Open World Ltd
   //
   // This file is part of MillScript.
   //
   // MillScript is free software; you can redistribute it and/or modify it under
   // the terms of the GNU General Public License as published by the Free
   // Software Foundation; either version 2 of the License, or (at your option)
  // any later version.
  //
  // MillScript is distributed in the hope that it will be useful, but WITHOUT
  // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  // more details.
  //
  // You should have received a copy of the GNU General Public License along with
  // MillScript; if not, write to the Free Software Foundation, Inc., 59 Temple
  // Place, Suite 330, Boston, MA  02111-1307  USA
  ////////////////////////////////////////////////////////////////////////////////
  package millscript;
  
  import java.lang.*;
  import java.util.*;
  
  public final class DateTools {
  
  	public static int currentYear() {
  		Calendar calendar = Calendar.getInstance();
  		return calendar.get(Calendar.YEAR);
  	}
  
  	public static int currentMonth() {
  		Calendar calendar = Calendar.getInstance();
  		return calendar.get(Calendar.MONTH);
  	}
  
  	public static int currentDay() {
  		Calendar calendar = Calendar.getInstance();
  		return calendar.get(Calendar.DAY_OF_MONTH);
  	}
  
  	public static int currentTime() {
  		Calendar calendar = Calendar.getInstance();
  		Date date = calendar.getTime();
  		// Return the number of seconds since
  		// January 1, 1970, 00:00:00
  		return (int)(date.getTime() / 1000);
  	}
  
  	public static int getYear( Integer seconds ) {
  		Calendar calendar = Calendar.getInstance();
  		// Initialise a new Date object with the supplied
  		// number of milliseconds.
  		Date date = new Date( ((long)seconds.intValue()) * 1000 );
  
  		calendar.setTime( date );
  
  		return calendar.get(Calendar.YEAR);
  	}
  
  	public static int getMonth( Integer seconds ) {
  		Calendar calendar = Calendar.getInstance();
  		// Initialise a new Date object with the supplied
  		// number of milliseconds.
  		Date date = new Date( ((long)seconds.intValue()) * 1000 );
  
  		calendar.setTime( date );
  
  		return calendar.get(Calendar.MONTH);
  	}
  
  	public static int getDay( Integer seconds ) {
  		Calendar calendar = Calendar.getInstance();
  		// Initialise a new Date object with the supplied
  		// number of milliseconds.
  		Date date = new Date( ((long)seconds.intValue()) * 1000 );
  
  		calendar.setTime( date );
  
  		return calendar.get(Calendar.DAY_OF_MONTH);
  	}
  
  	/*
  	// threeDigitMonth
  	*/
  	public static String shortMonth( int month ) {
  
  		return(
  			month == Calendar.JANUARY ? "Jan" :
  			month == Calendar.FEBRUARY ? "Feb" :
  			month == Calendar.MARCH ? "Mar" :
  			month == Calendar.APRIL ? "Apr" :
  			month == Calendar.MAY ? "May" :
  			month == Calendar.JUNE ? "Jun" :
  			month == Calendar.JULY ? "Jul" :
  			month == Calendar.AUGUST ? "Aug" :
  			month == Calendar.SEPTEMBER ? "Sep" :
  			month == Calendar.OCTOBER ? "Oct" :
 			month == Calendar.NOVEMBER ? "Nov" :
 			month == Calendar.DECEMBER ? "Dec" :
 			""
 		);
 	}
 
 	/*
 	// getThis
 	*/
 	public static int getThis( int day, int field ) {
 		Calendar calendar = Calendar.getInstance();
 
 		for (;;) {
 			// Loop until we get the required day.
 			if ( calendar.get(Calendar.DAY_OF_WEEK) == day ) {
 				return calendar.get( field );
 			} else {
 				calendar.roll(Calendar.DAY_OF_MONTH, 1);
 			}
 		}
 	}
 
 	/*
 	// getNext
 	*/
 	public static int getNext( int day, int field ) {
 		Calendar calendar = Calendar.getInstance();
 
 		boolean thisweek = true;
 
 		for (;;) {
 			// Loop until we get the required day.
 			if ( calendar.get(Calendar.DAY_OF_WEEK) == day ) {
 				if ( thisweek == true ) {
 					thisweek = false;
 				} else {
 					return calendar.get( field );
 				}
 			}
 			calendar.roll(Calendar.DAY_OF_MONTH, 1);
 
 		}
 	}
 
 	/*
 	// This weekends date functions.
 	// i.e. the coming Friday and Sunday
 	*/
 	public static int getThisFridayDay() {
 		return getThis( Calendar.FRIDAY, Calendar.DAY_OF_MONTH );
 	}
 
 	public static String getThisFridayMonth() {
 		return shortMonth(
 			getThis( Calendar.FRIDAY, Calendar.MONTH )
 		);
 	}
 
 	public static int getThisFridayYear() {
 		return getThis( Calendar.FRIDAY, Calendar.YEAR );
 	}
 
 	public static int getThisSundayDay() {
 		return getThis( Calendar.SUNDAY, Calendar.DAY_OF_MONTH );
 	}
 
 	public static int getThisSundayYear() {
 		return getThis( Calendar.SUNDAY, Calendar.YEAR );
 	}
 
 	public static String getThisSundayMonth() {
 		return shortMonth(
 			getThis( Calendar.SUNDAY, Calendar.MONTH )
 		);
 	}
 
 	/*
 	// Next weekends date functions.
 	// i.e. the Friday and Sunday after the above functions.
 	*/
 	public static int getNextFridayDay() {
 		return getNext( Calendar.FRIDAY, Calendar.DAY_OF_MONTH );
 	}
 
 	public static String getNextFridayMonth() {
 		return shortMonth(
 			getNext( Calendar.FRIDAY, Calendar.MONTH )
 		);
 	}
 
 	public static int getNextFridayYear() {
 		return getNext( Calendar.FRIDAY, Calendar.YEAR );
 	}
 
 	public static int getNextSundayDay() {
 		return getNext( Calendar.SUNDAY, Calendar.DAY_OF_MONTH );
 	}
 
 	public static String getNextSundayMonth() {
 		return shortMonth(
 			getNext( Calendar.SUNDAY, Calendar.MONTH )
 		);
 	}
 
 	public static int getNextSundayYear() {
 		return getNext( Calendar.SUNDAY, Calendar.YEAR );
 	}
 }