package busTicketSellingSystem;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.net.MalformedURLException;
import java.net.URL;
import static java.rmi.server.ObjID.read;
import static java.rmi.server.UID.read;
import java.util.Scanner;
import javax.swing.*;

public class FrmLoginPage extends JFrame implements ActionListener {

    JFrame frmLogin;
    private JLabel lblUsername, lblPassword, lblName;
    JButton btnLogin, btnSignUp, btnClear;
    JTextField txtUsername;
    JPasswordField txtPassword;
    private JLabel lblLogo;
    private static final String LOGO = "C:\\Users\\User\\Desktop\\Java Programming\\BusTicketSellingSystem\\Pics/bus.png";
    private JPanel pnlButton, pnlLogo;

    public FrmLoginPage () {

        frmLogin = new JFrame();
        frmLogin.setMinimumSize(new Dimension(800, 700));
        frmLogin.setLocationRelativeTo(null);
        frmLogin.setTitle("Login");
        frmLogin.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frmLogin.setLayout(new GridBagLayout());
        GridBagConstraints constraint = new GridBagConstraints();
        pnlButton = new JPanel();
        pnlButton.setLayout(new GridBagLayout());

        lblUsername = new JLabel("Username:");
        lblUsername.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 20));

        lblPassword = new JLabel("Password:");
        lblPassword.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 20));

        lblName = new JLabel("Login Page");
        lblName.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 20));

        txtUsername = new JTextField(100);
        txtUsername.setFont(new Font(Font.SANS_SERIF, Font.LAYOUT_LEFT_TO_RIGHT, 20));
        txtPassword = new JPasswordField(100);
        txtPassword.setFont(new Font(Font.SANS_SERIF, Font.LAYOUT_LEFT_TO_RIGHT, 20));

        btnLogin = new JButton("Login");
        btnLogin.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 20));

        btnSignUp = new JButton("Sign Up");
        btnSignUp.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 20));

        btnClear = new JButton("Clear");
        btnClear.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 20));

        pnlLogo = new JPanel();
        pnlLogo.setLayout(new GridBagLayout());

        lblLogo = new JLabel("", new ImageIcon(getScaledImage(new ImageIcon(LOGO).getImage(), 300, 250)), JLabel.CENTER);

        constraint.gridx = 2;
        constraint.gridy = 0;
        frmLogin.add(pnlLogo, constraint);

        constraint.insets = new Insets(0, 0, 40, 110);
        constraint.gridx = 0;
        constraint.gridy = 0;
        constraint.anchor = GridBagConstraints.CENTER;
        constraint.gridwidth = 1;
        constraint.gridheight = 1;
        pnlLogo.add(lblLogo, constraint);

        constraint.gridx = 0;
        constraint.gridy = 2;
        constraint.gridwidth = 1;
        constraint.insets = new Insets(0, 50, 40, 10);
        constraint.anchor = GridBagConstraints.LINE_START;
        frmLogin.add(lblUsername, constraint);

        constraint.gridy = 3;
        frmLogin.add(lblPassword, constraint);

        constraint.gridx = 2;
        constraint.gridy = 2;
        constraint.anchor = GridBagConstraints.CENTER;
        constraint.fill = GridBagConstraints.HORIZONTAL;
        constraint.weightx = 1;
        constraint.ipady = 10;
        constraint.insets = new Insets(0, 0, 40, 50);
        frmLogin.add(txtUsername, constraint);

        constraint.gridy = 3;
        frmLogin.add(txtPassword, constraint);

        constraint.gridx = 0;
        constraint.gridy = 4;
        constraint.ipady = 0;
        constraint.ipadx = 0;
        constraint.insets = new Insets(0, 0, 0, 0);
        constraint.fill = GridBagConstraints.HORIZONTAL;
        constraint.anchor = GridBagConstraints.CENTER;
        constraint.gridwidth = 0;
        frmLogin.add(pnlButton, constraint);

        constraint.gridx = 0;
        constraint.gridy = 1;
        constraint.insets = new Insets(0, 0, 0, 30);
        constraint.fill = GridBagConstraints.NONE;
        constraint.anchor = GridBagConstraints.CENTER;
        constraint.weightx = 0;
        constraint.weighty = 0;
        constraint.gridwidth = 1;
        constraint.ipadx = 60;
        constraint.ipady = 15;
        pnlButton.add(btnLogin, constraint);

        constraint.gridx = 1;
        constraint.gridy = 1;
        constraint.ipadx = 60;
        constraint.ipady = 15;
        pnlButton.add(btnClear, constraint);

        constraint.gridx = 2;
        constraint.gridy = 1;
        constraint.insets = new Insets(0, 0, 0, 0);
        constraint.ipadx = 60;
        constraint.ipady = 15;
        pnlButton.add(btnSignUp, constraint);
        frmLogin.setVisible(true);
        btnLogin.addActionListener(this);
        btnSignUp.addActionListener(this);
        btnClear.addActionListener(this);
    }

    private static Image getScaledImage(Image srcImg, int w, int h) {
        BufferedImage resizedImg = new BufferedImage(w, h, BufferedImage.BITMASK);
        Graphics2D g2 = resizedImg.createGraphics();
        g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        g2.drawImage(srcImg, 0, 0, w, h, null);
        g2.dispose();
        return resizedImg;

    }

       public void actionPerformed(ActionEvent p){
         Object pressed = p.getSource();

       if (pressed == btnClear){
            txtUsername.setText("");
            txtPassword.setText("");
            txtUsername.requestFocus();
       }


       if (pressed == btnLogin){
            txtUsername.setText("");
            txtPassword.setText("");
        }


       if (pressed == btnSignUp){
            txtUsername.setText("");
            txtPassword.setText("");
        }


        File loginf = new File("C:\\Users\\User\\Desktop\\Java Programming\\BusTicketSellingSystem\\Registration.txt");
            try{
                Scanner read = new Scanner(loginf);
                read.useDelimiter(",");

                   boolean login = false;
                   while(read.nextLine() !=null){
                      String user = read.next();
                      String pass = read.next();
                      read.next();
                      if(txtUsername.getText().equals(user) && txtPassword.getText().equals(pass)){
                         login = true;
                         break;
                      }
                   }
                   if(login)
                      new FrmMainMenu();
                   else {
                      JOptionPane.showMessageDialog(null, "Incorrect username or password");
                      txtUsername.setText("");
                      txtPassword.setText("");
                   }
                read.close();
            }
            catch (FileNotFoundException e){
                    JOptionPane.showMessageDialog(null, "Can't find a text file");
            }
       }

       }