/*
  Distributed Systems: Practical Exercise 2
  
  This class represent represents a general node in the network. Classes 
  RingNode and BullyNode extends this class.
  You should not change anything in this file.

  This template file (C) The University of Edinburgh, 2002

  Author: Yussuf Abu Shaaban

*/


import java.awt.*;
import java.awt.geom.*;
import java.util.*;

public class Node extends Component implements Comparable{
    private final double width = 30.0;
    private final double height = 30.0;
    public  Color color = Color.blue;
    private static int NodeCount = 0;

    protected int id;
    protected boolean failed = false;

    Ellipse2D.Double graphicalRep;
    public Network network;



    public Node(){
	;
    }

    public Node(Point p, int id, Network network){
	super();
	this.id = id;
	this.network = network;
	graphicalRep = new Ellipse2D.Double(p.x, p.y, width, height);
    }

    public void receiveMessage(Message msg){
	;
    }

    public Vector neighbours(){
      Channel tempC = null;
      Vector linkedNodes = new Vector();
      for(int i = 0; i < network.getChannels().size(); i++){
         tempC = (Channel) network.getChannels().elementAt(i);
         if(tempC.getNode1().compareTo(this) == 0){
	     linkedNodes.addElement(network.getNode(tempC.getNode2()));
         }
      }
      return linkedNodes;
    }
    
    public Vector allNodes(){
	return network.getNodes();
    }

    public int getId(){
	return id;
    }



    public boolean isFailed(){
      return failed;
    }


    public void changeGraphicalState(){
	network.updateNodeGraphically(this);
    }
    

    public void discardMessage(Message msg){
	network.deleteMessage(msg);
    }


    public void setFailed(){
	failed = true;
    }

    

     public Channel getChannel(Node neighbour){
	Channel channel = null;
	for(int i = 0; i < network.getChannels().size(); i++){
	    Channel tempC = (Channel) network.getChannels().elementAt(i);
	    if(tempC.getNode1().compareTo(this) == 0 &
	       tempC.getNode2().compareTo(neighbour) == 0){
		channel = tempC;
	    }
	}
	return channel;
    }

    public void paint(Graphics g){
	Graphics2D g2 = (Graphics2D) g;
	g2.setPaint(color);
	g2.draw(graphicalRep);
	g2.setPaint(color);
	g2.fill(graphicalRep);
	g.setColor(Color.black);
	g.drawString(String.valueOf(id),
		     (int)graphicalRep.getX(),
		     (int) graphicalRep.getY());
	if(failed){
	    Rectangle rn1 = graphicalRep.getBounds();
	    Line2D.Double line1 = new Line2D.Double(rn1.x, rn1.y, 
						    rn1.x + rn1.width, 
						    rn1.y + rn1.height);
	    Line2D.Double line2 = new Line2D.Double(rn1.x + rn1.width, 
						    rn1.y, rn1.x, 
						    rn1.y + rn1.height);
	    Stroke stroke = new BasicStroke(7);
	    g2.setStroke(stroke);
	    g2.setColor(Color.black);
	    g2.draw(line1);
	    g2.draw(line2);
	    g2.setStroke(new BasicStroke());
	}
    }
    
    public int compareTo(Object o){
	Node temp = (Node) o;
	if(this.getId() < temp.getId()){ return -1;}
	else if(this.getId() == temp.getId()) { return 0;}
	else return 1;
    }
}