import java.io.*;
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.util.regex.*;
import java.util.StringTokenizer;

public class pad extends Panel implements ActionListener, KeyListener {
	static int pressed = 0;
	static final int WIDTH = 800;
	static final int HEIGHT = 600;
	TextArea ta1 = new TextArea(35, 80);
	TextField tf1 = new TextField();
	TextField tf2 = new TextField();
	Button newf = new Button("New");
	Button save = new Button("Save");
	Button open = new Button("Open");

	public pad(boolean ismain) {
		Panel b1 = new Panel(new GridLayout(1, 2));
		if (ismain) {
			b1.add(newf);
			newf.addActionListener(this);
		}
		b1.add(save);
		save.addActionListener(this);
		b1.add(open);
		open.addActionListener(this);
		Panel b2 = new Panel(new GridLayout(1, 2));
		b2.add(new Label("File:"));
		b2.add(tf1);
		Panel b3 = new Panel(new GridLayout(1, 2));
		b3.add(new Label("Line:"));
		b3.add(tf2);
		Panel p1 = new Panel(new GridLayout(3, 1));
		p1.add(b1);
		p1.add(b2);
		p1.add(b3);
		setLayout(new BorderLayout());
		add(ta1, BorderLayout.CENTER);
		add(p1, BorderLayout.NORTH);
		ta1.addKeyListener(this);
	}

	public void keyPressed(KeyEvent e) {
		pressed++;
	}
	public void keyReleased(KeyEvent e) {}
	public void keyTyped(KeyEvent e) {}

	public void actionPerformed(ActionEvent e) {
		int act = 0;
		try {
		if (e.getSource() == save)
			act = 1;
		else if (e.getSource() == open)
			act = 2;
		else if (e.getSource() == newf)
			act = 3;
		switch(act) {
			case 1:
				int cut = Integer.parseInt(tf2.getText());
				int len = 0;
				PrintWriter savefile = new PrintWriter(new FileWriter(tf1.getText()));
				String text = ta1.getText();
				for (int i = 0; i < text.length(); i++) {
					len++;
					char a = text.charAt(i);
					if (a == '\n')
						len = 0;
					else if (len == cut) {
						String b = text.substring(0, i + 1);
						String c = text.substring(i + 1);
						text = b + "\n" + c;
					}
				}
						
				ta1.setText(text);
				for (int i = 0; i < text.length(); i++)
					savefile.print((char)(text.charAt(i) + 10));
				savefile.close();
				System.out.println("Text saved into " + tf1.getText());
				break;
			case 2:
				ta1.setText("");
				BufferedReader loadfile = new BufferedReader(new FileReader(tf1.getText()));
				String line = loadfile.readLine();
				char dec[] = new char[line.length()];
				while (line != null) {
					for (int b = 0; b < line.length(); b++)
						dec[b] = (char)(line.charAt(b) - 10);
					ta1.append(new String(dec));
					line = loadfile.readLine();
				}
				loadfile.close();
				System.out.println("Text loaded from " + tf1.getText());
				break;
			case 3:
				Frame f = new Frame();
				f.add(new pad(false));
				f.setSize(WIDTH, HEIGHT);
				f.setVisible(true);
				f.addWindowListener(new React(0));
				break;
		}
		}
		catch (Exception exc) {
			System.out.println(exc);
		}
	}

	public static void main(String[] args) {
		Frame f1 = new Frame();
		f1.add(new pad(true));
		f1.setSize(WIDTH, HEIGHT);
		f1.setTitle("");
		f1.setVisible(true);
		f1.addWindowListener(new React(1));
	}
}

class React extends WindowAdapter {
	int count;
	int exit;

	public React(int x) {
		new timer().start();
		exit = x;
	}

	class timer extends Thread
	{
		public timer() {
			count = 0;
		}
		public void run() {
			try {
				while (true) {
					sleep(1000);
					count++;
				}
			}
			catch (Exception e) {}
		}
	}

	//public void windowClosing(WindowEvent e) throws IOException {
	public void windowClosing(WindowEvent e) {
		try {
			PrintWriter cf = new PrintWriter(new FileWriter("counter.txt")); // cf - counter file
			cf.println("Last session\n===");
			cf.println("Lasted for " + count + " seconds.");
			cf.println("Keys were pressed " + pad.pressed + " times.");
			cf.close();
		}
		catch (Exception exc) {
			System.out.println(exc);
		}
		System.out.println("Window closed");
		if (exit == 1)
			System.exit(0);
		else
			e.getWindow().dispose();
	}
}