package com.mina.chat.client;

import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IoSession;

import com.mina.chat.server.ChatCommand;

/**
 * 客戶端執(zhí)行處理
 *
 * @author 1
 * @version 1.0
 */
public class SwingChatClientHandler extends IoHandlerAdapter {
	private final Callback callback;
	
    public interface Callback {
        void connected();

        void loggedIn();

        void loggedOut();

        void disconnected();

        void messageReceived(String message);

        void error(String message);
    }

    public SwingChatClientHandler(Callback callback) {
        this.callback = callback;
    }

    @Override
    public void sessionOpened(IoSession session) throws Exception {
        callback.connected();
    }

    @Override
    public void messageReceived(IoSession session, Object message)
            throws Exception {
        String theMessage = (String) message;
        String[] result = theMessage.split(" ", 3);
        String status = result[1];
        String theCommand = result[0];
        ChatCommand command = ChatCommand.valueOf(theCommand);

        if ("OK".equals(status)) {

            switch (command.toInt()) {

            case ChatCommand.BROADCAST:
                if (result.length == 3) {
                    callback.messageReceived(result[2]);
                }
                break;
            case ChatCommand.LOGIN:
                callback.loggedIn();
                break;

            case ChatCommand.QUIT:
                callback.loggedOut();
                break;
            }

        } else {
            if (result.length == 3) {
                callback.error(result[2]);
            }
        }
    }

    @Override
    public void sessionClosed(IoSession session) throws Exception {
        callback.disconnected();
    }

}