import java.applet.*;
import java.awt.*;
import java.io.*;
import java.net.*;

public class Chapplet extends Applet {

    public AudioClip laugh;
    public AudioClip slaugh;
    public AudioClip wakeup;

    private String serverName = ManyServer.class;
    private final String defaultServerName = "193.40.238.40";
    private String serverPortStr = null;
    private final String defaultServerPortStr = "3012";
    private String chatChannel = null;
    private final String defaultChatChannel = "Default";
    private int serverPort;

    ChatConnection chatConnection;
    Thread chatConnectionThread;

    TextArea textDisplayArea;
    TextArea textInputArea;
    Button sendButton;
    Panel bottomPanel;

    private int previousEvKey = 0;

    public void init() {
	
	try {
	    serverName=getParameter("server");
	    serverPortStr=getParameter("port");
	    chatChannel=getParameter("channel");
	}
	catch ( Exception e ) {
	    serverName = defaultServerName;
	    serverPortStr = defaultServerPortStr;
	    chatChannel = defaultChatChannel;
	}
	serverPort = Integer.parseInt(serverPortStr);

	bottomPanel = new Panel();
	bottomPanel.setLayout(new BorderLayout());
	bottomPanel.add("North", textInputArea = new TextArea(5, 80));
	bottomPanel.add("South", sendButton = new Button("Send"));

	setLayout(new BorderLayout());
	add("South", bottomPanel);
	add("Center", textDisplayArea = new TextArea(20, 80));
	textDisplayArea.setEditable(false);

	try {
	    laugh = getAudioClip(getDocumentBase(),"laugh.au");
	    slaugh = getAudioClip(getDocumentBase(),"slaugh.au");
	    wakeup = getAudioClip(getDocumentBase(),"wakeup.au");
	}
	catch ( Exception e ) {
	    laugh = null;
	    slaugh = null;
	    wakeup = null;
	}

	chatConnection = new ChatConnection( serverName,
	    serverPort, chatChannel, this, textDisplayArea );
	chatConnectionThread = new Thread(chatConnection);
	chatConnectionThread.start();
    }

    public boolean action(Event ev, Object ob) {
	if (ev.target.equals(sendButton)) {
	    String message = textInputArea.getText(); 
	    chatConnection.write(message+"\n");
	    textInputArea.setText(""); 
	    return true;
	}
	return false;
    }

    public static void main ( String args[] ) { 
	MainFrame frame = new MainFrame (" C H A P P L E T");
	Chapplet chapplet = new Chapplet();
	chapplet.init();
	chapplet.start();
	frame.add("Center",chapplet);
	frame.pack();
	frame.show();
    }
}

class MainFrame extends Frame {
 
    public MainFrame( String str ) {
	super(str);
    }

    public boolean handleEvent(Event ev) {
	if ( ev.id == Event.WINDOW_DESTROY ) {
	    System.exit(0);
	}
	return super.handleEvent(ev);
    }
}

class ChatConnection extends Thread {

    Socket socket;
    DataOutputStream outputs;
    DataInputStream inputs;
    String serverName;
    int serverPort;
    String chatChannel;
    TextArea textDisplayArea;
    Chapplet chapplet;

    public ChatConnection( String _serverName,
	int _serverPort, String _chatChannel, 
	Chapplet _chapplet,
	TextArea _textDisplayArea ) {

	serverName = _serverName;
	serverPort = _serverPort;
	chatChannel = _chatChannel;
	chapplet = _chapplet;
	textDisplayArea = _textDisplayArea;
    }

    public void run() {

	try {
	    socket = new Socket(serverName,serverPort);
	    outputs = new DataOutputStream(socket.getOutputStream());
	    inputs = new DataInputStream(socket.getInputStream());
	    String message;

	    this.write("CHANNEL " + chatChannel);
	    this.write("HISTORY");

	    boolean go = true;
	    while (go) {
		message = inputs.readLine();
		if ( message == null ) {
		    go = false;
		}
		else {
		    textDisplayArea.appendText(message+"\n");
		    if (message.indexOf( ":-)" ) > -1 ) {
			if ( chapplet.laugh != null ) {
			    chapplet.laugh.play();
			}
		    }
		    if (message.indexOf( ":)" ) > -1 ) {
			if ( chapplet.slaugh != null ) {
			    chapplet.slaugh.play();
			}
		    }
		    if (message.indexOf( "!!!" ) > -1 ) {
			if ( chapplet.wakeup != null ) {
			    chapplet.wakeup.play();
			}
		    }
		}
	    }
	}
	catch (Exception e) {
	    textDisplayArea.appendText("CONNECTION ERROR :"+"\n");
	    textDisplayArea.appendText(e.getMessage()+"\n");
	}
    }

    void write( String mess ) {
	try {
	    outputs.writeBytes(mess+"\n");
	    outputs.flush ();
	} 
	catch (Exception e)  {
	    textDisplayArea.appendText("OUTPUT ERROR :"+"\n");
	    textDisplayArea.appendText(e.getMessage()+"\n");
	}
    }
}