/*
   mars.java - Display the 'time' on Mars
   Copyright (C) 1997, 2003 Frank Sorenson (frank@byu.net)

   This program 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.

   This program 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 this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

import java.awt.*;
import java.applet.Applet;
import java.io.*;
import java.net.*;
import java.util.*;
import java.lang.*;

public class mars extends Applet implements Runnable
{
   Thread MyThread = null;
   int MyDelay;
   int FGValue;
   int BGValue;

   public static void main (String [] args)
   {
   System.out.println("Content-type: text/html\n");
   System.out.println("<h1>Hello world</h1>");
   }

   int GetNumberParam(String ValueString, int DefaultValue)
   {
      Integer TempInt;
      String TempString;
      TempString = getParameter(ValueString).toUpperCase();

      if (TempString.startsWith("0X"))
      {
         int i;
         int TempInt2;

         TempInt2 = 0;
         for (i = 2 ; i < ValueString.length() ; i ++)
         {
            TempInt2 = (TempInt2 + (new String("0123456789ABCDEF")).indexOf(TempString.charAt(i))) * 16;
         }
         return(TempInt2);
      }
      try
      {
         TempInt = Integer.valueOf(TempString);
      }
      catch (NumberFormatException z)
      {
         return DefaultValue;
      }
      return TempInt.intValue();
   }

   public void init()
   {
      FGValue = GetNumberParam("FGColor", 0x000000);
      BGValue = GetNumberParam("BGColor", 0xFFFFFF);
      MyDelay = GetNumberParam("Delay", 973);

      setForeground(new Color(FGValue));
      setBackground(new Color(BGValue));
      setFont(new Font("Courier",Font.BOLD,14));
      System.out.println("This Applet by Frank Sorenson (frank AT tuxrocks.com)");
      System.out.println("http://www.tuxrocks.com/Projects/mars/");
   }

   public void start()
   {
      if ( MyThread == null )
      {
        MyThread = new Thread(this);
        MyThread.start();
      }
   }
   public void run()
   {
      while ( MyThread != null )
      {
         try
         {
            MyThread.sleep(MyDelay);
         }
         catch (InterruptedException e)
         {
              break;
         }
      this.resize(400, 120);
         this.repaint();
         while (true)
         {
            try
            {
               MyThread.sleep(MyDelay);
            }
            catch (InterruptedException e)
            {
            }
            this.repaint();
         }
      }
   }
   public void stop()
   {
      MyThread.stop();
      MyThread = null;
   }

   public boolean mouseEnter(java.awt.Event evt, int x, int y)
   {
      showStatus("(c) 1997 Frank Sorenson");
      return (true);
   }
   public boolean mouseDown(java.awt.Event evt, int x, int y)
   {
//      MyThread.resume();

      return (true);
   }

   public String FormatLong(long InVal)
   {
      if (InVal > 9) return("" + InVal);
      return("0" + InVal);
   }

   public void paint(Graphics graph)
   {
      Date dat = new Date();
      String OutputString;
      long CurrentTime;
      long TempTime;
      int TempInt;
      float TempFloat;

      CurrentTime = dat.getTime();
      TempTime = CurrentTime - (dat.getTimezoneOffset() * 60000);

      OutputString = "EarthTime: "; //Day ";
      TempTime = TempTime % 86400000;
      OutputString += "  " + FormatLong(TempTime / 3600000) + ":";
      TempTime = TempTime % 3600000;
      OutputString += FormatLong(TempTime / 60000) + ":";
      TempTime = TempTime % 60000;
      OutputString += FormatLong(TempTime / 1000);
      graph.drawString(OutputString, 10, 10);

//             1 Mars second = 1.0275 Earth seconds
//             1 Mars minute = 1 Earth minute, 1.65 Earth seconds
//             1 Mars hour   = 1 Earth hour, 1 Earth minute, 39 Earth seconds

      TempTime = CurrentTime - dat.parse("Mon 21 Jul, 1997 12:00:00 GMT");

      TempFloat = (float)TempTime;
      TempFloat /= 1.027382246883;
      TempTime = (long)TempFloat;
      TempTime += 40648000;      // Add the seconds the above date
      TempTime += 17*(86400000); // Add 17 extra days

      OutputString = "MarsTime: Sol ";
      OutputString += TempTime /  86400000;
      TempTime = TempTime %  86400000;
      OutputString += "  " + FormatLong(TempTime / 3600000) + ":";
      TempTime = TempTime % 3600000;
      OutputString += FormatLong(TempTime / 60000) + ":";
      TempTime = TempTime % 60000;
      OutputString += FormatLong(TempTime / 1000);
      graph.drawString(OutputString, 10, 50);

      OutputString = "This Applet by Frank Sorenson (sorenson@byu.edu)";
      graph.drawString(OutputString, 10, 90);
      OutputString = "http://pel.cs.byu.edu/~sorenson/";
      graph.drawString(OutputString, 10, 110);

      return;
   }
}