// Joshua Godfrey

//import statements
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.UIManager.*;
import java.awt.event.AdjustmentListener;
import java.awt.event.ActionEvent;


public class ATMGUI extends JFrame implements ActionListener

{

	JTextArea screen;
	JPanel textPanel;
	JPanel inputPanel;
	JPanel sidePanel;
	JButton [] numButtons;
	JTextField [] slips;
	int state = 1;

	//Example of Adapter Class

	private class Terminator extends WindowAdapter {
	    public void windowClosing(WindowEvent e)
	    {

	      System.out.println("Window closing selected: terminating program");
	      System.exit(0);

	    }

	  }

	public ATMGUI()
	{
		try
		{
			for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
				System.out.println(info.getClassName());
				if ("Nimbus".equals(info.getName())) {
					UIManager.setLookAndFeel(info.getClassName());
					break;

				}

			}

		} catch (UnsupportedLookAndFeelException e) {    // handle exception
		} catch (ClassNotFoundException e) {    // handle exception
		} catch (InstantiationException e) {    // handle exception
		} catch (IllegalAccessException e) {    // handle exception}

		}

		setTitle("ATM Machine by Godfrey");
		setSize(450, 350);
		Container content = getContentPane();
	   	content.setLayout ( new FlowLayout() );

	   	numButtons = new JButton[11];
	   	slips = new JTextField[2];
	   	screen = new JTextArea(6,35);
		for ( int i = 0; i <9 ; i++ )
		{

			numButtons[i] = new JButton ( Integer.toString ( i+1 ) );

		}

		numButtons[9] = new JButton ( "0" );
		numButtons[10] = new JButton ( "Enter" );

		slips[0] = new JTextField ("Take cash here");
		slips[1] = new JTextField ("Insert deposit slip here");


		textPanel = new JPanel();
		textPanel.setSize(200, 300);
		textPanel.setLayout ( new GridLayout(1,1) );
		textPanel.setBorder ( BorderFactory.createLineBorder ( Color.LIGHT_GRAY, 2 ) );
		textPanel.add( screen );
		content.add(textPanel);

		inputPanel = new JPanel();
		inputPanel.setSize(200, 300);
		inputPanel.setLayout ( new GridLayout(4,3) );
		inputPanel.setBorder ( BorderFactory.createLineBorder ( Color.LIGHT_GRAY, 2 ) );
		for ( int i = 0; i <numButtons.length ; i++ )
		{

			numButtons[i].addActionListener ( this );
			inputPanel.add ( numButtons[i] );

		}
		inputPanel.add ( slips[0] );
		inputPanel.add ( slips[1] );
		content.add(inputPanel);

		sidePanel = new JPanel();
		sidePanel.setSize(200, 200);
		sidePanel.setLayout ( new GridLayout(4,1) );
		sidePanel.setBorder ( BorderFactory.createLineBorder ( Color.LIGHT_GRAY, 2 ) );
		sidePanel.add ( slips[0] );
		sidePanel.add ( slips[1] );
		content.add(sidePanel);

		setVisible(true);
		addWindowListener(new Terminator());
		screen.append("Welcome\n\nEnter your account number: ");

	}

	public void getState1()
	{
		screen.setText("");
		screen.append("Welcome\n\nEnter your account number: ");
	}

	public void getState2()
	{
		screen.append("\n\nEnter your PIN: ");
	}

	public void getState3()
	{
		screen.setText("");
		screen.append("1: View Balance\n2: Withdraw funds\n3: Add funds\n4: Terminate transaction");
	}


	public void actionPerformed(ActionEvent evt)
	{

		Object source = evt.getSource();

		if(source==numButtons[0])
		{
			screen.append("1");
		}
		if(source==numButtons[1])
		{
			screen.append("2");
		}
		if(source==numButtons[2])
		{
			screen.append("3");
		}
		if(source==numButtons[3])
		{
			if(state ==1 )
				screen.append("4");
			else if(state == 3)
			{
				getState1();

			}
			else
				screen.append("4");
		}
		if(source==numButtons[4])
		{
			screen.append("5");
		}
		if(source==numButtons[5])
		{
			screen.append("6");
		}
		if(source==numButtons[6])
		{
			screen.append("7");
		}
		if(source==numButtons[7])
		{
			screen.append("8");
		}
		if(source==numButtons[8])
		{
			screen.append("9");
		}
		if(source==numButtons[9])
		{
			screen.append("0");
		}
		if(source==numButtons[10])
		{
			state = 1;
			if (state == 1)
			{
				getState2();
				state = 2;

			}
			else if (state == 2)
			{
					getState3();
					state = 3;
			}
			else
				getState1();
		}

	}

	public static void main(String args[])
	{
		ATMGUI test = new ATMGUI();

	}

}