import java.util.*;
import java.util.zip.*;
import java.util.List;
import java.util.regex.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.table.*;
import java.io.*;
import java.net.*;
import java.lang.reflect.*;
import java.lang.ref.*;
import java.lang.management.*;
import java.security.*;
import java.security.spec.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.imageio.*;
import java.math.*;
public class main {
static class Chat {
  JTextArea chatArea = new JTextArea();
  JTextField chatField = new JTextField();
  Runnable onEnter_pre, onEnter_post;
  
  Chat() {
    onEnter(chatField, new Runnable() { public void run() { try { 
      try {  callFunction(onEnter_pre); } catch (Throwable __e) { printStackTrace(__e); }
      chatArea.append(formatLine(chatField.getText()) + "\n");
      chatField.selectAll();
      try {  callFunction(onEnter_post); } catch (Throwable __e) { printStackTrace(__e); }
    } catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}});
  }
  
  void requestFocus() {
    chatField.requestFocus();
  }
  
  JComponent swing() {
    return withTitle("Chat", centerAndSouth(chatArea, chatField));
  }
  
  // override me if you freaking like
  String formatLine(String line) {
   return "Usr: " + line;
  }
  
  void append(String s) {
    chatArea.append(s);
  }
  
  String input() {
    return chatField.getText().trim();
  }
} // Chat

static Chat chat = new Chat();

public static void main(String[] args) throws Exception {
  chat.onEnter_post = new Runnable() { public void run() { try { 
    chat.append("Bot: Yo, " + chat.input() + "\n");
  } catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}};
  
  showFrame("Chat with Bot!", chat);
  chat.requestFocus();
}


static void onEnter(JTextField tf, final Runnable action) {
  tf.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent evt) {
      try {
        action.run();
      } catch (Throwable e) {
        e.printStackTrace();
      }
    }
  });
}
static JComponent withTitle(String title, Component c) {
  return withTitle(withTitle_titlePanel(title), c);
}

static JComponent withTitle_titlePanel(String title) {
  return new JLabel(title);
}

static JPanel withTitle(JComponent titleComponent, Component c) {
  titleComponent.setBorder(BorderFactory.createMatteBorder(0, 0, 1, 0, UIManager.getColor("Button.borderColor")));
  JPanel panel = new JPanel(new BorderLayout());
  panel.setBackground(Color.WHITE);
  panel.add(BorderLayout.NORTH, titleComponent);
  panel.add(BorderLayout.CENTER, wrap(c));
  return panel;
}

static JPanel centerAndSouth(Component c, Component s) {
  JPanel panel = new JPanel(new BorderLayout());
  panel.add(BorderLayout.CENTER, wrap(c));
  panel.add(BorderLayout.SOUTH, wrap(s));
  return panel;
}
static Object callFunction(Object f, Object... args) {
  if (f == null) return null;
  if (f instanceof Runnable) {
    ((Runnable) f).run(); return null;
  } else if (f instanceof String)
    return call(mc(), (String) f, args);
  else
    return call(f, "get", args);
  //else throw fail("Can't call a " + getClassName(f));
}
static JFrame showFrame() {
  return makeFrame();
}

static JFrame showFrame(Object content) {
  return makeFrame(content);
}

static JFrame showFrame(String title) {
  return makeFrame(title);
}

static JFrame showFrame(String title, Object content) {
  return makeFrame(title, content);
}

  // varargs assignment fixer for a single string array argument
  static Object call(Object o, String method, String[] arg) {
    return call(o, method, new Object[] {arg});
  }
  
  static Object call(Object o, String method, Object... args) {
    try {
      if (o instanceof Class) {
        Method m = call_findStaticMethod((Class) o, method, args, false);
        m.setAccessible(true);
        return m.invoke(null, args);
      } else {
        Method m = call_findMethod(o, method, args, false);
        m.setAccessible(true);
        return m.invoke(o, args);
      }
    } catch (Exception e) {
      throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e);
    }
  }

  static Method call_findStaticMethod(Class c, String method, Object[] args, boolean debug) {
    Class _c = c;
    while (c != null) {
      for (Method m : c.getDeclaredMethods()) {
        if (debug)
          System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
        if (!m.getName().equals(method)) {
          if (debug) System.out.println("Method name mismatch: " + method);
          continue;
        }

        if ((m.getModifiers() & Modifier.STATIC) == 0 || !call_checkArgs(m, args, debug))
          continue;

        return m;
      }
      c = c.getSuperclass();
    }
    throw new RuntimeException("Method '" + method + "' (static) with " + args.length + " parameter(s) not found in " + _c.getName());
  }

  static Method call_findMethod(Object o, String method, Object[] args, boolean debug) {
    Class c = o.getClass();
    while (c != null) {
      for (Method m : c.getDeclaredMethods()) {
        if (debug)
          System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
        if (m.getName().equals(method) && call_checkArgs(m, args, debug))
          return m;
      }
      c = c.getSuperclass();
    }
    throw new RuntimeException("Method '" + method + "' (non-static) with " + args.length + " parameter(s) not found in " + o.getClass().getName());
  }

  private static boolean call_checkArgs(Method m, Object[] args, boolean debug) {
    Class<?>[] types = m.getParameterTypes();
    if (types.length != args.length) {
      if (debug)
        System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
      return false;
    }
    for (int i = 0; i < types.length; i++)
      if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
        if (debug)
          System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
        return false;
      }
    return true;
  }


static Class mc() {
  return getMainClass();
}
static JFrame makeFrame() {
  return makeFrame((Component) null);
}

static JFrame makeFrame(Object content) {
  // TODO: get program ID
  return makeFrame("A JavaX Frame", content);
}

static JFrame makeFrame(String title) {
  return makeFrame(title, null);
}

static JFrame makeFrame(String title, Object content) {
  JFrame frame = new JFrame(title);
  if (content != null)
    frame.getContentPane().add(wrap(content));
  frame.setBounds(300, 100, 500, 400);
  frame.setVisible(true);
  //exitOnFrameClose(frame);
  return frame;
}
// c = Component or something implementing swing()
static Component wrap(Object swingable) {
  Component c = (Component) ( swingable instanceof Component ? swingable : call(swingable, "swing"));
  if (c instanceof JTable || c instanceof JList || c instanceof JTextArea)
    return new JScrollPane(c);
  return c;
}


// extended over Class.isInstance() to handle primitive types
static boolean isInstanceX(Class type, Object arg) {
  if (type == boolean.class) return arg instanceof Boolean;
  if (type == int.class) return arg instanceof Integer;
  if (type == long.class) return arg instanceof Long;
  if (type == float.class) return arg instanceof Float;
  if (type == short.class) return arg instanceof Short;
  if (type == char.class) return arg instanceof Character;
  if (type == byte.class) return arg instanceof Byte;
  if (type == double.class) return arg instanceof Double;
  return type.isInstance(arg);
}
static Class getMainClass() { try {
 
  return Class.forName("main");

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

static Class getMainClass(Object o) { try {
 
  return (o instanceof Class ? (Class) o : o.getClass()).getClassLoader().loadClass("main");

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

static void printStackTrace(Throwable e) {
  // we go to system.out now - system.err is nonsense
  print(getStackTrace(e));
}

static void printStackTrace() {
  printStackTrace(new Throwable());
}

static volatile StringBuffer local_log = new StringBuffer(); // not redirected
static volatile StringBuffer print_log = local_log; // might be redirected, e.g. to main bot

// in bytes - will cut to half that
static volatile int print_log_max = 1024*1024;
static volatile int local_log_max = 100*1024;

static void print() {
  print("");
}

// slightly overblown signature to return original object...
static <A> A print(A o) {
  String s = String.valueOf(o) + "\n";
  StringBuffer loc = local_log;
  StringBuffer buf = print_log;
  int loc_max = print_log_max;
  if (buf != loc && buf != null) {
    print_append(buf, s, print_log_max);
    loc_max = local_log_max;
  }
  if (loc != null) 
    print_append(loc, s, loc_max);
  System.out.print(s);
  return o;
}

static void print(long l) {
  print(String.valueOf(l));
}

static void print(char c) {
  print(String.valueOf(c));
}

static void print_append(StringBuffer buf, String s, int max) {
  synchronized(buf) {
    buf.append(s);
    max /= 2;
    if (buf.length() > max) try {
      int newLength = max/2;
      int ofs = buf.length()-newLength;
      String newString = buf.substring(ofs);
      buf.setLength(0);
      buf.append("[...] ").append(newString);
    } catch (Exception e) {
      buf.setLength(0);
    }
  }
}
static String getStackTrace(Throwable throwable) {
  StringWriter writer = new StringWriter();
  throwable.printStackTrace(new PrintWriter(writer));
  return writer.toString();
}
}