import java.util.*;
import java.io.*;
import javax.microedition.io.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

import javax.microedition.sip.*;

public class SipSender extends MIDlet implements CommandListener{

	private Display display;
	private Form form;
	public ImageItem userImageItem;
	public Image userImage;
	private TextField addressTextField;
	private TextField subjectTextField;
	private TextField messageTextField;
	private Command sendCommand;
	private Command exitCommand;

	public SipSender() {
		display=Display.getDisplay(this);
		form = new Form("SIP Sender");

		try{
			userImage = Image.createImage("/male_user.png");
		} catch (Exception e){
			e.printStackTrace();
		}
		userImageItem = new ImageItem("William Young", userImage, Item.LAYOUT_CENTER, ""); 
		form.append(userImageItem);

		addressTextField = new TextField("Address", "sip:user@localhost:5070", 30, TextField.LAYOUT_LEFT);
		subjectTextField = new TextField("Subject", "", 30, TextField.LAYOUT_LEFT);
		messageTextField = new TextField("Message text", "", 30, TextField.LAYOUT_LEFT);
		form.append(addressTextField);
		form.append(subjectTextField);
		form.append(messageTextField);
		sendCommand = new Command("Send", Command.ITEM, 1);
		form.addCommand(sendCommand);
		exitCommand = new Command("Exit", Command.EXIT, 1);
		form.addCommand(exitCommand);
		form.setCommandListener(this);
    	}
    



	public void commandAction(Command command, Displayable display) {
		if(command == sendCommand) {
			Thread dataTransferThread = new DataTransfer();
			dataTransferThread.start();
		}
		if(command == exitCommand ) {
			destroyApp(true);
		}
	} 
 
   
	public void startApp() {
		display.setCurrent(form);	
	}
    
        
	public void pauseApp() {

	}

	public void destroyApp(boolean b) {
		notifyDestroyed();
	}


	class DataTransfer extends Thread implements SipClientConnectionListener{

		public void run() {
			SipClientConnection sc = null;
			try {
				sc = (SipClientConnection) Connector.open(addressTextField.getString());
				sc.setListener(this);
				String message = messageTextField.getString();
				sc.initRequest("MESSAGE", null);
				sc.setHeader("From", addressTextField.getString());
				sc.setHeader("Subject", subjectTextField.getString());
				sc.setHeader("Content-Type", "text/plain");
				sc.setHeader("Content-Length", "" + message.length());
				OutputStream os = sc.openContentOutputStream();
				os.write(message.getBytes());
				os.close(); 
	    
			} catch(Exception e) {
				e.printStackTrace();
			}
		}

		public void notifyResponse(SipClientConnection scc) {
			try {
				scc.receive(1);
				form.append("notifyResponse: "+scc.getStatusCode()+" "+scc.getReasonPhrase());
				scc.close();
			} catch(Exception e) {
				form.append(e.getMessage());
			}
		}
	}

}