package guis;

import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;

public class LoginDemo extends JFrame {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	static LoginDemo loginGUI = new LoginDemo();
	static JFrame submitGUI = new JFrame();
	static HashMap<String, String> users = new HashMap<String, String>();
	public static void main(String []args){
		try{
        	UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        	SwingUtilities.updateComponentTreeUI(loginGUI);
        	SwingUtilities.updateComponentTreeUI(submitGUI);
        }catch(Exception e){
        	
        }
		users.put("Pete", "petepass");
		users.put("Dale", "dalepass");
		loginGUI.setResizable(false);
		loginGUI.setTitle("Please Login");
		loginGUI.setPreferredSize(new Dimension(250,120));
		loginGUI.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		JPanel mainPanel = new JPanel(new GridBagLayout());
		buildBasicGUI(mainPanel);
		loginGUI.add(mainPanel);
		loginGUI.pack();
		loginGUI.setLocation(420, 325);
		loginGUI.setVisible(true);
	}
	
	public static void buildBasicGUI(JPanel mainPanel){
		final JLabel userLabel = new JLabel("User Name: ");
		final JLabel passwordLabel = new JLabel("Password: ");
		final JLabel logError = new JLabel(" ");
		final JTextField userName = new JTextField(12);
		final JPasswordField password = new JPasswordField(12);
		final JButton loginButton = new JButton("Login");
		loginButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				String user = userName.getText();
				char pass[] = password.getPassword();
				if(pass != null && loginValid(user, pass)){
					password.setText("");
					logError.setText(" ");
					loginGUI.setVisible(false);
					buildAndDisplaySubmit();
				}
				else{
					logError.setText("Invalid Login Information!");
					password.setText("");
				}
			}
		});
		GridBagConstraints c = new GridBagConstraints();
		c.gridx = 1;c.gridy = 0;
		c.gridwidth = 2;
		mainPanel.add(logError, c);
		c.gridwidth = 1;
		c.gridy++;c.gridx--;
		mainPanel.add(userLabel, c);
		c.gridy++;
		mainPanel.add(passwordLabel, c);
		c.gridy--;c.gridx++;
		mainPanel.add(userName, c);
		c.gridy++;
		mainPanel.add(password, c);
		c.gridy++;
		mainPanel.add(loginButton,c);
	}
	
	public static void buildAndDisplaySubmit(){
		JPanel submitPanel = new JPanel(new GridBagLayout());
		GridBagConstraints c = new GridBagConstraints();
		//Labels
		final JLabel errors = new JLabel(" ");
		JLabel orderNoLabel = new JLabel("* Order Number: ");
		JLabel fNameLabel = new JLabel("* First Name: ");
		JLabel lNameLabel = new JLabel("* Last Name: ");
		JLabel phoneLabel = new JLabel(" Phone Number: ");
		JLabel emailLabel = new JLabel("* E-mail: ");
		//Text
		final JTextField orderNo = new JTextField(15);
		final JTextField fName = new JTextField(15);
		final JTextField lName = new JTextField(15);
		final JTextField phone = new JTextField(15);
		final JTextField email = new JTextField(15);
		//Button
		JButton submit = new JButton("Submit");
		JButton cancel = new JButton("Logout");
		
		cancel.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				orderNo.setText("");
				fName.setText("");
				lName.setText("");
				phone.setText("");
				email.setText("");
				errors.setText(" ");
				submitGUI.setVisible(false);
				loginGUI.setVisible(true);
			}});
		submit.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				ArrayList<String> fields = new ArrayList<String>();
				//Might try to do more with errors. thats why its set up like this..
				if(orderNo.getText().trim().equals("")){
					fields.add("Order Number");
				}
				if(fName.getText().trim().equals("")){
					fields.add("First Name");
				}
				if(lName.getText().trim().equals("")){
					fields.add("Last Name");
				}
				if(lName.getText().trim().equals("")){
					fields.add("Last Name");
				}
				if(email.getText().trim().equals("")){
					fields.add("E-mail");
				}
				if(fields.size() > 0){
					errors.setText("You are missing at least one Required Field");
				}
				else{
					errors.setText("Form Submitted!");
				}
				
			}});
		c.weighty = .25;
		c.gridx = 0;
		c.gridy = 0;
		c.gridwidth = 2;
		submitPanel.add(errors, c);
		c.gridwidth = 1;
		c.gridy++;
		
		submitPanel.add(orderNoLabel, c);
		c.gridx++;
		submitPanel.add(orderNo, c);
		c.gridx--;c.gridy++;
		
		submitPanel.add(fNameLabel, c);
		c.gridx++;
		submitPanel.add(fName, c);
		c.gridx--;c.gridy++;
		submitPanel.add(lNameLabel, c);
		c.gridx++;
		submitPanel.add(lName, c);
		c.gridx--;c.gridy++;
		
		submitPanel.add(phoneLabel, c);
		c.gridx++;
		submitPanel.add(phone, c);
		c.gridx--;c.gridy++;
		
		submitPanel.add(emailLabel, c);
		c.gridx++;
		submitPanel.add(email, c);
		c.gridx--;c.gridy++;
		
		submitPanel.add(cancel, c);
		c.gridx++;
		submitPanel.add(submit, c);
		c.gridx--;c.gridy++;
		
		submitGUI.setResizable(false);
		submitGUI.setTitle("Form Submission");
		submitGUI.setPreferredSize(new Dimension(380,280));
		submitGUI.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		submitGUI.add(submitPanel);
		submitGUI.pack();
		submitGUI.setLocation(420, 325);
		submitGUI.setVisible(true);
	}
	private static boolean loginValid(String user, char pass[]){
		String correct = users.get(user);
		return ((correct != null) && Arrays.equals(pass, correct.toCharArray()));
	}
}