import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
 * Main frame to enter address
 * 
 * @author fbergeon
 */
public class AddressFrame extends JFrame implements ActionListener {
	// Static labels
	private static final String LBL_FIRSTNAME = "First name        ";
	private static final String LBL_SECONDNAME = "Second name  ";
	private static final String LBL_PHONENUMBER = "Phone number";
	private static final String LBL_HOUSENUMBER = "House number";
	private static final String LBL_STREET1NAME = "Street1 name  ";
	private static final String LBL_STREET2NAME = "Street2 name  ";
	private static final String LBL_CITYNAME = "City name         ";
	
	// Content pane
	private JPanel jContentPane = null;

	// Fist name
	private JLabel lblFirstName = null;
	private JTextField txtFirstName = null;

	// Second name
	private JLabel lblSecondName = null;
	private JTextField txtSecondName = null;
	
	// Phone number
	private JLabel lblPhoneNumber = null;
	private JTextField txtPhoneNumber = null;
	
	// House number
	private JLabel lblHouseNumber = null;
	private JTextField txtHouseNumber = null;

	// Street1 name
	private JLabel lblStreet1Name = null;
	private JTextField txtStreet1Name = null;

	// Street2 name
	private JLabel lblStreet2Name = null;
	private JTextField txtStreet2Name = null;

	// City name
	private JLabel lblCityName = null;
	private JTextField txtCityName = null;
	
	// Show short and full address buttons
	private JButton btnShort = null;
	private JButton btnFull = null;
	
	/**
	 * Default constructor
	 */
	public AddressFrame() {
		super();
		initialize();
	}

	/**
	 * Initialize the JFrame
	 * 
	 * @return void
	 */
	private void initialize() {
		// Set generic paramters
		this.setSize(360, 250);
		this.setTitle("Enter address");
		this.setLayout(new FlowLayout());
		
		// First name label and field
		lblFirstName = new JLabel(LBL_FIRSTNAME);
		txtFirstName = new JTextField(20);
		this.add(lblFirstName, null);
		this.add(txtFirstName, null);

		// Second name label and field
		lblSecondName = new JLabel(LBL_SECONDNAME);
		this.add(lblSecondName, null);
		txtSecondName = new JTextField(20);
		this.add(txtSecondName, null);
		
		// Phone number label and field
		lblPhoneNumber = new JLabel(LBL_PHONENUMBER);
		this.add(lblPhoneNumber, null);
		txtPhoneNumber = new JTextField(20);
		this.add(txtPhoneNumber, null);
		
		// House number label and field
		lblHouseNumber = new JLabel(LBL_HOUSENUMBER);
		this.add(lblHouseNumber, null);
		txtHouseNumber = new JTextField(20);
		this.add(txtHouseNumber, null);

		// Street1 name label and field
		lblStreet1Name = new JLabel(LBL_STREET1NAME);
		this.add(lblStreet1Name, null);
		txtStreet1Name = new JTextField(20);
		this.add(txtStreet1Name, null);			

		// Street2 name label and field
		lblStreet2Name = new JLabel(LBL_STREET2NAME);
		this.add(lblStreet2Name, null);
		txtStreet2Name = new JTextField(20);
		this.add(txtStreet2Name, null);
		
		// City name label and field
		lblCityName = new JLabel(LBL_CITYNAME);
		this.add(lblCityName, null);
		txtCityName = new JTextField(20);
		this.add(txtCityName, null);	
		
		// Show short address button
		btnShort = new JButton("Show short address");
		btnShort.addActionListener(this);
		this.add(btnShort, null);
		
		// Show full address button
		btnFull = new JButton("Show full address");
		btnFull.addActionListener(this);
		this.add(btnFull, null);
	}
	
	
	/**
	 *  Event handler to catch btnShort and btnFull clicks
	 * 
	 * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
	 */
	public void actionPerformed(java.awt.event.ActionEvent e) {
		// Show short address
		if (e.getSource() == btnShort)
			displayShortAddress();
		// Show full address
		else if (e.getSource() == btnFull)
			displayFullAddress();
	}
	
	
	/**
	 * Display full address in new JFrame
	 */
	private void displayFullAddress() {
		// Obtain address
		FullAddress address = getAddress();  
		if (address != null) {
			// Create new JFrame
			JFrame frame = new JFrame("Full address");
			frame.setSize(360, 220);
			frame.setLayout(new FlowLayout());
			
			// Populate short address
			populateShortAddress(address, frame);
			// Populate full address
			addField(frame, LBL_HOUSENUMBER, new Integer(address.houseNumber).toString(), false);
			addField(frame, LBL_STREET1NAME, address.street1Name, false);
			addField(frame, LBL_STREET2NAME, address.street2Name, false);
			addField(frame, LBL_CITYNAME, address.cityName, false);
			// Display
			frame.setVisible(true);
		}
	}
	
	/**
	 * Display short address in new JFrame
	 */
	private void displayShortAddress() {
		// Obtain address
		FullAddress address = getAddress();  
		if (address != null) {
			// Create new JFrame
			JFrame frame = new JFrame("Short address");
			frame.setSize(360, 120);
			frame.setLayout(new FlowLayout());

			// Populate short address
			populateShortAddress(address, frame);
			// Display
			frame.setVisible(true);
		}
	}
	
	/**
	 * Populate JFrame with short address
	 * 
	 * @param address	ShortAddress to populate with
	 * @param frame		JFrame to populate
	 */
	private void populateShortAddress(ShortAddress address, JFrame frame) {
		addField(frame, LBL_FIRSTNAME, address.firstName, false);
		addField(frame, LBL_SECONDNAME, address.secondName, false);
		addField(frame, LBL_PHONENUMBER, address.phoneNumber, false);
	}


	/**
	 * Build FullAddress object from input
	 * 
	 * @return	FullAddress object
	 */
	private FullAddress getAddress() {
		try {
			FullAddress address = new FullAddress(
				txtFirstName.getText(),
				txtSecondName.getText(),
				txtPhoneNumber.getText(),
				new Integer(txtHouseNumber.getText()),
				txtStreet1Name.getText(),
				txtStreet2Name.getText(),
				txtCityName.getText()
			);
			return address;
			
		// Catch exception and display error
		} catch (Exception e) {
			JOptionPane.showMessageDialog(null, "Error " + e.getMessage(), "Error", JOptionPane.ERROR_MESSAGE); 
			return null;
		}
	}
	
	/**
	 * Add JLabel and JTextField to JFrame
	 * 
	 * @param frame		JFrame to populate
	 * @param label		Label string
	 * @param value		Initial field value
	 * @param enabled	Field enabled true/false
	 */
	private static void addField(JFrame frame, String label, String value, boolean enabled) {
		// New JLabel
		JLabel lbl = new JLabel(label);
		// New JTextField
		JTextField txt = new JTextField(20);
		txt.setText(value);
		txt.setEnabled(enabled);
		
		// Add label and field to JFrame
		frame.add(lbl);
		frame.add(txt);
	}
}