package layout;

import java.awt.Color;
import java.awt.HeadlessException;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.GroupLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

import core.ClientHandler;
import core.Mensaje;

public class Login extends JFrame implements ActionListener {
    private static final long serialVersionUID = 1L;
    JButton btnEnviar;
    JLabel lblUser, lblPass, lblIP, lblErrorLogin;
    JTextField user, address;
    JPasswordField password;
    private ClientHandler cliente;

    public Login(String title, ClientHandler unCliente)
            throws HeadlessException {
        super(title);
        cliente = unCliente;
        init();
    }

    public void init() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setResizable(false);
        GroupLayout layout = new GroupLayout(getContentPane());
        getContentPane().setLayout(layout);

        // Etiquetas
        lblUser = new JLabel("Usuario", JLabel.CENTER);
        lblPass = new JLabel("Password", JLabel.CENTER);
        lblIP = new JLabel("IP Address", JLabel.CENTER);
        lblErrorLogin = new JLabel(" ", JLabel.CENTER);

        // Campos
        user = new JTextField(20);
        password = new JPasswordField(20);
        address = new JTextField(10);

        // Boton
        btnEnviar = new JButton("Enviar");

        // Listeners
        btnEnviar.addActionListener(this);
        user.addActionListener(this);
        password.addActionListener(this);

        // Espacios
        final int DEFAULT_GAP = 5;
        layout.setAutoCreateGaps(true);

        layout.setHorizontalGroup(layout
                .createParallelGroup(GroupLayout.Alignment.CENTER)
                .addGap(DEFAULT_GAP)
                .addGroup(
                        layout.createSequentialGroup()
                                .addComponent(lblUser, 75, 75, 75)
                                .addComponent(user, 125, 125, 125)
                                .addGap(DEFAULT_GAP))
                .addGroup(
                        layout.createSequentialGroup()
                                .addComponent(lblPass, 75, 75, 75)
                                .addComponent(password, 125, 125, 125)
                                .addGap(DEFAULT_GAP))
                .addGroup(
                        layout.createSequentialGroup()
                                .addComponent(lblIP, 75, 75, 75)
                                .addComponent(address, 125, 125, 125)
                                .addGap(DEFAULT_GAP))

                .addGroup(
                        layout.createParallelGroup(GroupLayout.Alignment.CENTER)
                                .addComponent(btnEnviar)
                                .addComponent(lblErrorLogin)
                                .addGap(DEFAULT_GAP))

        );

        layout.setVerticalGroup(layout
                .createSequentialGroup()
                .addGap(DEFAULT_GAP)
                .addGroup(
                        layout.createParallelGroup().addComponent(lblUser)
                                .addComponent(user, 20, 20, 20))
                .addGroup(
                        layout.createParallelGroup().addComponent(lblPass)
                                .addComponent(password, 20, 20, 20))
                .addGroup(
                        layout.createParallelGroup().addComponent(lblIP)
                                .addComponent(address, 20, 20, 20))
                .addGroup(
                        layout.createSequentialGroup().addComponent(btnEnviar)
                                .addComponent(lblErrorLogin)
                                .addGap(DEFAULT_GAP)));

        pack();
        setVisible(true);
        setLocationRelativeTo(null);
        /*
         * Luego de empacar todo, intenta colocar la ventana en el centro, sin
         * importar la resolucion
         */

    }

    @Override
    public void actionPerformed(ActionEvent a) {

        // Boton Enviar
        if (a.getSource() == btnEnviar) {
            lblUser.setForeground(Color.BLACK);
            lblPass.setForeground(Color.BLACK);
            if (verificarCampos() == false) {
                // Do Nothing.
            } else {
                cliente.user().userName(user.getText());
                Mensaje mensajeLogin = new Mensaje();
                mensajeLogin.handshake(cliente.user(), true, 0);
                cliente.server(address.getText());
                cliente.enviarMensaje(mensajeLogin);

                if (cliente.redoLogin() == true) {
                    lblErrorLogin
                            .setText("El usuario " + user.getText() + " se encuentra en uso");
                    user.setText(null);
                    password.setText(null);
                } else {
                    cliente.crearCanal();
                    cliente.crearInvitar();
//                  this.dispose();
                }

            }
        }
    }

    public boolean verificarCampos() {
        int p = password.getPassword().length;
        int u = user.getText().length();
        boolean correcto = false;

        if (u == 0) {
            lblUser.setForeground(Color.RED);
        }
        if (p == 0) {
            lblPass.setForeground(Color.RED);
        }

        if (u != 0 && p != 0) {
            correcto = true;
        }
        return correcto;
    }

}