/**
 * Write a description of class UI here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JScrollPane;
import java.awt.CardLayout;
import java.text.*;
import java.io.*;
import java.util.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.*;
import javax.swing.event.*;

public class UI implements ItemListener
{
    JPanel cards;
    final static String BUTTONPANEL = "View Inventory";
    final static String TEXTPANEL = "Add Inventory";
    final static String LOGIN = "Login";
    final static String CASHIERMODE = "Cashier Mode";
    String passwordM = "manager";
    String passwordC = "cashier";
    String itemName = "";
    String priceNum = "";
    String quantityNum = "";
    String tot = "";
    double priceSell = 0.0;
    double total = 0.0;
    int quantityS = 0;

    int cheeseQ = 5;
    int PBQ = 10;
    int saladQ = 5;
    int butterQ = 15;
    int tomatoQ = 25;
    double temp = 0;
    DefaultTableModel tableSet;

    public void addComponentToPane(Container pane)
    {
        JPanel comboBoxPane = new JPanel();
        JTabbedPane tabbedPane = new JTabbedPane();
        JButton add = new JButton("ADD");
        JButton login = new JButton("LOGIN");
        JButton sell = new JButton("SELL");
        JTextField sellquant = new JTextField("",20);
        JLabel totalval = new JLabel("TOTAL: ");
        JLabel totalprice = new JLabel();
        JLabel ce = new JLabel();

        JTextField item = new JTextField("", 20);
        JTextField price = new JTextField("", 20);
        JTextField quantity = new JTextField("", 20);

        JTextField user = new JTextField("", 20);
        JTextField pass = new JPasswordField("", 20);

        JPanel card = new JPanel();

        String comboBoxItems[] = {BUTTONPANEL, TEXTPANEL, LOGIN};
        JComboBox cb = new JComboBox(comboBoxItems);
        cb.setEditable(false);
        cb.addItemListener(this);
        comboBoxPane.add(cb);

        //creating the card
        card.add(new Label("Login: "));
        card.add(user);
        card.add(pass);
        card.add(login);

        JPanel card1 = new JPanel();

        add.addActionListener(new ActionListener(){
                public void actionPerformed(ActionEvent e){
                    try{
                        itemName = item.getText();
                        priceNum = price.getText();
                        quantityNum= quantity.getText();
                        tableSet.addRow(new String[] {itemName, priceNum, quantityNum});
                        item.setText("");
                        price.setText("");
                        quantity.setText("");

                    }
                    catch(Exception d)
                    {}
                }
            } );

        //creating the Jtable
        String[] columns = new String[] {
                "Item", "Price", "Quantity"
            };
        //actual data for the table in a 2d array
        Object[][] data = new Object[][] {
                {"Cheese", 2.99, cheeseQ},
                {"Peanut Butter", 1.99, PBQ},
                {"Salad", 3.99, saladQ},
                {"Butter", 1.99, butterQ},
                {"Tomatoes", 4.99, tomatoQ}

            };
        //create table with dataNum
        tableSet = new DefaultTableModel(data, columns);
        JTable table = new JTable(tableSet);
        JTable table1 = new JTable(tableSet);
        //add the table to the frame
        card1.add(new JScrollPane(table));
        card1.setVisible(true);

        JPanel card2 = new JPanel();
        card2.add(new JLabel("ITEM"));
        card2.add(item);
        card2.add(new JLabel("PRICE"));
        card2.add(price);
        card2.add(new JLabel("QUANTITY"));
        card2.add(quantity);
        card2.add(add);

        JPanel card3 = new JPanel();
        card3.add(new JLabel("Quantity"));
        card3.add(sellquant);
        card3.add(sell);

        card3.add(new JScrollPane(table1));
        card3.setVisible(true);

        tabbedPane.addTab(LOGIN, card);

        login.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    String username = user.getText();
                    String passName = pass.getText();
                    if(passName.equals(passwordM))
                    {
                        card.add(new JLabel("Welcome manager!"));
                        user.setText("");
                        pass.setText("");
                        tabbedPane.addTab(BUTTONPANEL, card1);
                        tabbedPane.addTab(TEXTPANEL, card2);
                        tabbedPane.addTab(CASHIERMODE, card3);
                    }
                    else if(passName.equals(passwordC))
                    {
                        card.add(new JLabel("Welcome cashier!"));
                        user.setText("");
                        pass.setText("");
                        tabbedPane.addTab(CASHIERMODE, card3);
                    }
                    else
                    {
                        card.add(new JLabel("Username/Password is invalid."));
                        user.setText("");
                        pass.setText("");
                    }

                }
            } );

        table1.getSelectionModel().addListSelectionListener(new ListSelectionListener(){
                public void valueChanged(ListSelectionEvent event) {

                    // priceSell = Double.parseDouble(table1.getValueAt(table1.getSelectedRow(),1).toString());
                    String s = table1.getModel().getValueAt(table1.getSelectedRow(), 1).toString();
                    priceSell = Double.parseDouble(s);
                    //System.out.println(du);
                }
            });

        sell.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    String quantitySell = sellquant.getText();
                    quantityS = Integer.parseInt(quantitySell);
                    //    System.out.println(quantitySell);
                    //    System.out.println(priceSell);
                    //    System.out.println(quantityS);

                    total = priceSell*quantityS;
                    tot = String.valueOf(total);
                    //     System.out.println(tot);

                    card3.add(totalval);
                    ce.setText(tot);
                    card3.add(ce);

                    //. System.out.println(tot);

                    double totalsales = total + temp;
                       temp = total;
                    String totalsal = String.valueOf(totalsales);

                    //System.out.println(totalsales);
                    totalprice.setText(totalsal);
                    card3.add(totalprice, JLabel.SOUTH);
                    if(table1.getModel().getValueAt(table1.getSelectedRow(), 0).toString().equals("Peanut Butter"))
                    {
                        tableSet.setValueAt(PBQ - quantityS,1,2);
                        PBQ = PBQ - quantityS;
                    }
                    if(table1.getModel().getValueAt(table1.getSelectedRow(), 0).toString().equals("Cheese"))
                    {
                        tableSet.setValueAt(cheeseQ - quantityS,0,2);
                        cheeseQ = cheeseQ - quantityS;
                    }
                    if(table1.getModel().getValueAt(table1.getSelectedRow(), 0).toString().equals("Salad"))
                    {
                        tableSet.setValueAt(saladQ - quantityS,2,2);
                        saladQ = saladQ - quantityS;
                    }
                    if(table1.getModel().getValueAt(table1.getSelectedRow(), 0).toString().equals("Butter"))
                    {
                        tableSet.setValueAt(butterQ - quantityS,3,2);
                        butterQ = butterQ - quantityS;
                    }
                    if(table1.getModel().getValueAt(table1.getSelectedRow(), 0).toString().equals("Tomatoes"))
                    {
                        tableSet.setValueAt(tomatoQ - quantityS,4,2);
                        tomatoQ = tomatoQ - quantityS;
                    }
                }
            } );

        pane.add(tabbedPane, BorderLayout.CENTER);
    }

    public void itemStateChanged(ItemEvent evt) {
        CardLayout cl = (CardLayout)(cards.getLayout());
        cl.show(cards, (String)evt.getItem());
    }

    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("Retail");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Create and set up the content pane.
        UI demo = new UI();

        //Display the window.
        frame.pack();
        frame.setSize(500,500);
        frame.setVisible(true);

        demo.addComponentToPane(frame.getContentPane());
        //display
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args)
    {

        try {

            UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
        } catch (UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
        } catch (IllegalAccessException ex) {
            ex.printStackTrace();
        } catch (InstantiationException ex) {
            ex.printStackTrace();
        } catch (ClassNotFoundException ex) {
            ex.printStackTrace();
        }
        /* Turn off metal's use of bold fonts */
        UIManager.put("swing.boldMetal", Boolean.FALSE);

        //Schedule a job for the event dispatch thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    createAndShowGUI();
                }
            });
    }

}