/*
 * Message.java
 * Karl-Adam Karlsson
 * 06-10-12
 *
 * This class is used for communication by the chatclients.
 *
 */
import javax.crypto.*;
import java.io.*;
import java.net.*;
 import java.util.LinkedList;




public class Message implements Serializable{
	public static final int MESSAGE_CONNECT = 1;	
	public static final int MESSAGE_DISCONNECT = 2;
	public static final int MESSAGE_MESSAGE = 3;	
	public static final int MESSAGE_CHALLENGE = 4;
	public static final int MESSAGE_USR_LIST = 5;
	public static final int MESSAGE_CH_REPLY = 6;
	//public static final int MESSAGE_CONNECT_REPLY = 6;
	
	private int myType;
	private String strData;
	private InetAddress myClient, target;
	private Object data;
	
	//Constructor for the message class
	public Message(int type){
		myType = type;
		
		try{
			myClient = InetAddress.getLocalHost();
		}catch(UnknownHostException unho){
			unho.printStackTrace();
			System.exit(1);
		}
	}//end of constructor
	
	/* type()
	 *
	 * @return int myType, the type of this message instance,
	 */
	public int type(){return myType;}
	
	//getters & setters
	public InetAddress getSenderIP(){return myClient;}
	public InetAddress getTargetIP(){return target;}
	public String getText(){return strData;}
	public void setText(String newtext){strData = newtext;}
	public void setData(Object someData){data = someData;}
	public Object getData(){return data;}
		
	/*
	 * Sets the data of this object, based on the Type of this instance.
	 * @param Object data the data to be associated with this object.
	 *		  connect/disconnect had no data, merely a type. 
	 *		  for MESSAGE_MESSAGE data is the string to send.
	 *		  for MESSAGE_CHALLENGE data is the address of the one to challenge. 
	 */
	public void setData(Object somedata, InetAddress me, InetAddress tar){
		
		if(myType == MESSAGE_MESSAGE){
			strData = (String)somedata;//data e meddelandet
			if(me!=null){myClient = me;}
			
			if(tar!=null){target = tar;}
		}
		else if(myType==MESSAGE_CONNECT||myType==MESSAGE_DISCONNECT||myType==MESSAGE_CH_REPLY){
			strData = (String)somedata;//data e vårat namn
			myClient = me;
			target = tar;
			
		}else if(myType == MESSAGE_CHALLENGE){
			//Data is Name of challengeer
			strData = (String)somedata;//data e vårat namn
			myClient = me;
			target = tar;
		}else if(myType==MESSAGE_USR_LIST){
			data = new LinkedList();
			data = (LinkedList)somedata;
			myClient = me;
			target = tar;
		}
	}//end of setData
	
	
	
	
	
}//end of class