import java.awt.*;
import java.awt.event.*;
import java.util.*;

import javax.swing.*;
import javax.swing.table.DefaultTableModel;

/*=======  TU PROSZE SIE PODPISAC ==============================
 *      Imie:
 *  Nazwisko:
 *Nr indeksu:
 *     Grupa:
 *==============================================================
 */

class Banknot {

    String waluta;
    double wartosc;

    public Banknot(String waluta, int wartosc) {
        this.waluta = waluta;
        this.wartosc = wartosc;
    }

    @Override
    public String toString() {
        return waluta + " " + waluta;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((waluta == null) ? 0 : waluta.hashCode());
        long temp;
        temp = Double.doubleToLongBits(wartosc);
        result = prime * result + (int) (temp ^ (temp >>> 32));
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Banknot other = (Banknot) obj;
        if (waluta == null) {
            if (other.waluta != null)
                return false;
        } else if (!waluta.equals(other.waluta))
            return false;
        if (Double.doubleToLongBits(wartosc) != Double.doubleToLongBits(other.wartosc))
            return false;
        return true;
    }



} // koniec klasy Banknot


class Panel extends JPanel implements MouseListener, MouseMotionListener, Runnable {

    /**
     *
     */
    private static final long serialVersionUID = 1L;

    boolean isPressed = false;
    boolean isOnScreen = false;
    int mouseX, mouseY, x=0;

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);

        g.setColor(Color.BLACK);

        if(isPressed && isOnScreen) {
            g.fillOval(mouseX -25, mouseY-25, 50, 50);
        } else if(!isPressed && isOnScreen){
            g.drawOval(mouseX-25, mouseY-25, 50, 50);
        }

        g.setColor(Color.YELLOW);
        g.fillOval(x, 0, 50, 50);

    }

    @Override
    public void mouseDragged(MouseEvent e) {
        mouseX = e.getX();
        mouseY = e.getY();
        repaint();
    }

    @Override
    public void mouseMoved(MouseEvent e) {
        mouseX = e.getX();
        mouseY = e.getY();
        repaint();
    }

    @Override
    public void mouseClicked(MouseEvent e) {}

    @Override
    public void mouseEntered(MouseEvent e) {
        isOnScreen = true;
        mouseX = e.getX();
        mouseY = e.getY();
        repaint();
    }

    @Override
    public void mouseExited(MouseEvent e) {
        isOnScreen = false;
        repaint();
    }

    @Override
    public void mousePressed(MouseEvent e) {
        isPressed = true;
        mouseX = e.getX();
        mouseY = e.getY();
        repaint();
    }

    @Override
    public void mouseReleased(MouseEvent e) {
        isPressed = false;
        mouseX = e.getX();
        mouseY = e.getY();
        repaint();
    }

    @Override
    public void run() {
        while(true) {
            try {
                Thread.sleep(10);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            x++;
            if(x>600) {
                x=0;
            }
            repaint();
        }
    }


} // koniec klasy Panel


public class Okno extends JFrame implements ActionListener, Runnable{

    // Tu prosz� dopisa� brakuj�ce metody oraz uzupe�ni�
    // zadeklarowane poni�ej metody implementuj�ce
    // niezb�dne interfejsy.

    /**
     *
     */
    private static final long serialVersionUID = 1L;

    private int timer;
    private HashSet<Banknot> banknots = new HashSet<>();
    private WidokKolekcji widokKolekcji = new WidokKolekcji(banknots);

    public static void main(String [] args) {
        new Okno();
    }

    JButton authorButton = new JButton("Autor");
    JMenuBar menuBar = new JMenuBar();
    JMenu file = new JMenu("Plik");
    JMenuItem authorMenu = new JMenuItem("Autor");
    JMenuItem closeMenu = new JMenuItem("Zakończ");

    JLabel seconds = new JLabel("Sekundy:");
    JButton resetButton = new JButton("Zeruj");
    JTextField timerField = new JTextField(7);

    JLabel waluta = new JLabel("Waluta: ");
    JLabel wartosc = new JLabel("Wartość: ");
    JTextField walutaField = new JTextField(5);
    JTextField wartoscField = new JTextField(5);
    JButton addBanknot = new JButton("Dodaj Banknot");
    JButton deleteBanknot = new JButton("Usuń Banknot");
    JButton deleteAllBanknots = new JButton("Usuń wszystkie");

    Panel panel = new Panel();

    public Okno() {
        super("Mateusz Polok");
        setSize(600,300);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setResizable(false);
        setLocationRelativeTo(null);

        file.add(authorMenu);
        file.add(closeMenu);
        menuBar.add(file);
        setJMenuBar(menuBar);

        timerField.setEditable(false);
        timerField.setText(""+timer);

        authorMenu.addActionListener(this);
        closeMenu.addActionListener(this);
        authorButton.addActionListener(this);
        resetButton.addActionListener(this);

        addBanknot.addActionListener(this);
        deleteAllBanknots.addActionListener(this);
        deleteBanknot.addActionListener(this);

        panel.add(authorButton);
        panel.add(seconds);
        panel.add(timerField);
        panel.add(resetButton);

        panel.add(waluta);
        panel.add(walutaField);
        panel.add(wartosc);
        panel.add(wartoscField);

        panel.add(widokKolekcji);

        panel.add(addBanknot);
        panel.add(deleteBanknot);
        panel.add(deleteAllBanknots);

        panel.addMouseListener(panel);
        panel.addMouseMotionListener(panel);

        setContentPane(panel);
        setVisible(true);
        new Thread(this).start();
        panel.run();
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        Object event = e.getSource();

        if(event == authorButton) {
            JOptionPane.showMessageDialog(this, "Mateusz Polok", "Autor", JOptionPane.INFORMATION_MESSAGE);
        }
        if(event == authorMenu) {
            JOptionPane.showMessageDialog(this, "Mateusz Polok", "Autor", JOptionPane.INFORMATION_MESSAGE);
        }
        if(event == closeMenu) {
            System.exit(0);
        }
        if(event == resetButton) {
            timer = 0;
            timerField.setText(""+timer);
        }
        if(event == addBanknot) {
            String waluta;
            int wartosc;
            try {
                wartosc = Integer.parseInt(wartoscField.getText());
                waluta = walutaField.getText();
                if(waluta.length()>0) {
                    widokKolekcji.kolekcja.add(new Banknot(waluta, wartosc));
                    widokKolekcji.refresh();
                }else {
                    JOptionPane.showMessageDialog(this, "Pole waluta nie moze byc puste");
                }
            }catch (NumberFormatException e1) {
                JOptionPane.showMessageDialog(this, "Pole wartosc musi być liczbą!");
            }
        }
        if(event == deleteBanknot) {
            String waluta;
            int wartosc;
            try {
                wartosc = Integer.parseInt(wartoscField.getText());
                waluta = walutaField.getText();
                if(waluta.length()>0) {
                    widokKolekcji.kolekcja.remove(new Banknot(waluta, wartosc));
                    widokKolekcji.refresh();
                }else {
                    JOptionPane.showMessageDialog(this, "Pole waluta nie moze byc puste");
                }
            }catch (NumberFormatException e1) {
                JOptionPane.showMessageDialog(this, "Pole wartosc musi być liczbą!");
            }
        }
        if(event == deleteAllBanknots) {
            widokKolekcji.kolekcja.removeAll(banknots);
            widokKolekcji.refresh();
        }
    }

    @Override
    public void run() {
        while(true) {
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            timer++;
            timerField.setText(""+timer);
        }
    }

} // koniec klasy Okno


class WidokKolekcji extends JScrollPane {
    private static final long serialVersionUID = 1L;

    // W TEJ KLASIE NIE TRZEBA NIC MODYFIKOWAďż˝ !!!

    private JTable tabela;
    private DefaultTableModel modelTabeli;
    Collection<Banknot> kolekcja;

    /* Do konstruktora nale�y przekaza� referencj�
     * na kolekcj�, kt�rej zawarto�� ma by� wy�wietlana
     * na panelu
     */
    WidokKolekcji(Collection<Banknot> kolekcja) {
        String[] kolumny = {"Waluta:", "Wartość"};
        modelTabeli = new DefaultTableModel(kolumny, 0);
        tabela = new JTable(modelTabeli);
        tabela.setRowSelectionAllowed(false);
        this.kolekcja = kolekcja;
        setViewportView(tabela);
        setPreferredSize(new Dimension(150, 200));
        setBorder(BorderFactory.createTitledBorder("Banknoty"));
    }

    /* Metod� refresh() nale�y wywo�a� po ka�dej
     * modyfikacji zawarto�ci wy�wietlanej kolejcji
     */
    void refresh() {
        modelTabeli.setRowCount(0);
        for (Banknot p : kolekcja) {
            String[] s = {p.waluta, "" + p.wartosc};
            modelTabeli.addRow(s);
        }
    }
} // koniec klasy WidokKolekcji