package com.floreantpos.swing;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.KeyboardFocusManager;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.util.ArrayList;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JToggleButton;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.text.JTextComponent;

import com.floreantpos.Messages;


public class QwertyKeyPad extends JPanel implements ActionListener, ChangeListener {
	Font buttonFont = getFont().deriveFont(Font.BOLD, 24);

	String[] s1 = { "1", "2", "3", "4", "5", "6", "7", "8", "9", "0" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$
	String[] s2 = { "q", "w", "e", "r", "t", "y", "u", "i", "o", "p" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$
	String[] s3 = { "a", "s", "d", "f", "g", "h", "j", "k", "l", ";" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$
	String[] s4 = { "z", "x", "c", "v", "b", "n", "m", "-", ",", "." }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$

	private ArrayList<PosButton> buttons = new ArrayList<PosButton>();
	Dimension pSize = new Dimension(50, 50);

	public QwertyKeyPad() {
		createUI();

		Dimension size = new Dimension(700, 200);
		setMinimumSize(size);
		setPreferredSize(size);
	}

	private void createUI() {
		setLayout(new BorderLayout(0,0));


		TransparentPanel centerPanel = new TransparentPanel(new GridLayout(0,1,2,2));
		centerPanel.add(addButtonsToPanel(s1));
		centerPanel.add(addButtonsToPanel(s2));
		centerPanel.add(addButtonsToPanel(s3));
		centerPanel.add(addButtonsToPanel(s4));
		add(centerPanel, BorderLayout.CENTER);

		JPanel eastPanel = new JPanel(new GridLayout(0, 1, 2, 2));
		PosButton button = new PosButton();
		button.setText(Messages.getString("QwertyKeyPad.1")); //$NON-NLS-1$
		button.setFocusable(false);
		button.addActionListener(this);
		eastPanel.add(button);

		POSToggleButton toggleButton = new POSToggleButton();
		toggleButton.setText(Messages.getString("QwertyKeyPad.2")); //$NON-NLS-1$
		toggleButton.setFocusable(false);
		toggleButton.addChangeListener(this);
		eastPanel.add(toggleButton);

		button = new PosButton();
		button.setText(com.floreantpos.POSConstants.CLEAR);
		button.setFocusable(false);
		button.addActionListener(this);
		eastPanel.add(button);

		button = new PosButton();
		button.setFocusable(false);
		button.setText(com.floreantpos.POSConstants.CLEAR_ALL);
		button.addActionListener(this);
		eastPanel.add(button);

		eastPanel.setPreferredSize(new Dimension(90, 50));
		add(eastPanel, BorderLayout.EAST);
	}

	private TransparentPanel addButtonsToPanel(String[] buttonText) {
		TransparentPanel panel = new TransparentPanel(new GridLayout(0,s1.length,2,2));
		for (int i = 0; i < buttonText.length; i++) {
			String s = buttonText[i];
			PosButton button = new PosButton();
			button.setText(s);
			button.setPreferredSize(pSize);
			button.addActionListener(this);
			button.setFont(buttonFont);
			button.setFocusable(false);
			buttons.add(button);
			panel.add(button);
		}
		return panel;
	}

	public void actionPerformed(ActionEvent e) {
		Component focusOwner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();

		JTextComponent note = null;

		if(!(focusOwner instanceof JTextComponent)) {
			return;
		}

		note = (JTextComponent) focusOwner;

		String s = e.getActionCommand();
		if (s.equals(com.floreantpos.POSConstants.CLEAR)) {
			String str = note.getText();
			if (str.length() > 0) {
				str = str.substring(0, str.length() - 1);
			}
			note.setText(str);
		}
		else if (s.equals(com.floreantpos.POSConstants.CLEAR_ALL)) {
			note.setText(""); //$NON-NLS-1$
		}
		else if (s.equals(Messages.getString("QwertyKeyPad.0"))) { //$NON-NLS-1$
			String str = note.getText();
			if (str == null) {
				str = ""; //$NON-NLS-1$
			}
			note.setText(str + " "); //$NON-NLS-1$
		}
		else {
			String str = note.getText();
			if (str == null) {
				str = ""; //$NON-NLS-1$
			}
			note.setText(str + s);
		}
	}

	public void stateChanged(ChangeEvent e) {
		JToggleButton b = (JToggleButton) e.getSource();

		if (b.isSelected()) {
			for (PosButton button : buttons) {
				button.setText(button.getText().toUpperCase());
			}
		}
		else {
			for (PosButton button : buttons) {
				button.setText(button.getText().toLowerCase());
			}
		}
	}

	public static void main(String[] args) {
		JFrame frame = new JFrame();
		final QwertyKeyPad comp = new QwertyKeyPad();
		frame.add(comp);
		comp.addComponentListener(new ComponentListener() {

			@Override
			public void componentShown(ComponentEvent e) {


			}

			@Override
			public void componentResized(ComponentEvent e) {
				System.out.println(comp.getSize());

			}

			@Override
			public void componentMoved(ComponentEvent e) {


			}

			@Override
			public void componentHidden(ComponentEvent e) {


			}
		});

		frame.pack();
		frame.setVisible(true);
	}

}