/*
Time_served: Display the time since the supplied date.

This is my second java program, so it's probably poorly written.

Brian Stormont

brian@stormyprods.com


*/

import java.awt.Graphics;
import java.awt.Image;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.util.Date;

public class time_served extends java.applet.Applet implements Runnable
{

        Image OSC = null; 
        Graphics OSC_g = null; 

	Font f = null;
	FontMetrics fm = null; 
	String s1 = null;

	Thread killme = null;
        int i, y,m,d,h,min,s;
	int strlen;
	boolean threadSuspended = false;



public void init() {

        Date then;

        
	setBackground(Color.white);
        f = new Font("TimesRoman",Font.PLAIN,12);
	fm = getFontMetrics(f);

        s1 = getParameter("date");
	if (s1 == null) {
            s1 = "5/16/88 8:30";
	}

        resize((58+1)*12, 15);
 
        OSC = createImage(size().width, size().height);
        OSC_g = OSC.getGraphics(); 
              
        OSC_g.setFont(f); 


        then = new Date(s1);
        y = then.getYear();
        m = then.getMonth();
        d = then.getDate();
        h = then.getHours();
        min = then.getMinutes();
        s = then.getSeconds();


 }


public void get_date()
{

        Date now;
        int c_y, c_m, c_d, c_h, c_min, c_s;
        int d_y, d_m, d_d, d_h, d_min, d_s;
        
        now = new Date();
        c_y = now.getYear();
        c_m = now.getMonth();
        c_d = now.getDate();
        c_h = now.getHours();
        c_min = now.getMinutes();
        c_s = now.getSeconds();

        d_y = c_y - y;
        d_m = c_m - m;
        d_d = c_d -d;
        d_h = c_h - h;
        d_min = c_min - min;
        d_s = c_s - s;

        if (d_s < 0)
        {
                d_min--;
                d_s += 60;
        }

        if (d_min < 0)
        {
                d_h--;
                d_min += 60;
        }

        if (d_h < 0)
        {
                d_d--;
                d_h += 24;
        }

        if (d_d < 0)
        {
                d_m--;
                d_d += 31; // TODO: have real count for each month
        }

        if (d_m < 0)
        {
                d_y--;
                d_m += 12;
        }
        s1 = d_y + " years, " + d_m + " months, " + d_d + " days, " +
                 d_h + " hours, " + d_min +
                " minutes, " + d_s + " seconds ";

}



public void update(Graphics g) 
{ 

        paint(g); 
}    


public void start() {
	if(killme == null) 
	{
        killme = new Thread(this);
        killme.start();
	}
 }

public void stop() {
	killme = null;
 }


public void run() {
	while (killme != null) {
		try {Thread.sleep(5);} catch (InterruptedException e){}
                get_date();
		repaint();
	}
	killme = null;
 }

public void paint(Graphics g) {


        OSC_g.setColor(Color.white);  // fill OSC with white 
        OSC_g.fillRect(0,0,size().width,size().height); 
        OSC_g.setColor(Color.black);  // fill OSC with white 

        OSC_g.drawString(s1, 0, 13); 
 

        g.drawImage(OSC,0,0,this); 
 }
}