import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class Gui extends JFrame implements ActionListener {
    // Definitionen
    JFrame gui = new JFrame();
    Sort sort = new Sort();
    String strAnzahlZahlen = new String();
    int iAnzahlZahlen;
    int[] arrayShow;
    int[] arraySortShow;
    JPanel mainpanel = new JPanel();
    JSplitPane centerpanel = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
    JSplitPane centerbottompanel = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);
    JPanel centertoppanel = new JPanel();
    JPanel centerleftpanel = new JPanel();
    JPanel centerrightpanel = new JPanel();
    JPanel leftpanel = new JPanel();
    JPanel toppanel = new JPanel();
    JPanel topcenterpanel = new JPanel();
    JPanel centercenterpanel = new JPanel();
    JButton btnSortieren = new JButton("Sortieren");
    JButton btnBeenden = new JButton("Beenden");
    JButton btnArrayErzeugen = new JButton("Ziehen");
    JTextField tfAnzahlZahlen = new JTextField();
    JLabel lblEinagbe = new JLabel("Anzahl Zahlen");
    JCheckBox checkRandomNumbers = new JCheckBox("Zufallszahlen ?");
    JTextArea taArrayAnzeige = new JTextArea();
    JTextArea taArraySortAnzeige = new JTextArea();

    // Erstellung Oberfläche (Konstruktor)
    public Gui() {
        gui.setSize(800, 600);
        buildKonstrust();
        gui.setVisible(true);
        gui.setResizable(false);
    }

    private void buildKonstrust() {
        // Aufbereitung Anzeige
        mainpanel.setLayout(new BoxLayout(mainpanel,1));
        gui.getContentPane().add(BorderLayout.CENTER,mainpanel);
        gui.getContentPane().add(BorderLayout.WEST, leftpanel);
        gui.getContentPane().add(BorderLayout.NORTH, toppanel);

        // Erstellung BoxLayouts
        BoxLayout leftboxlayout = new BoxLayout(leftpanel, BoxLayout.Y_AXIS);
        leftpanel.setLayout(leftboxlayout);
        BoxLayout topboxlayout = new BoxLayout(toppanel, BoxLayout.X_AXIS);
        toppanel.setLayout(topboxlayout);
        BoxLayout centertoplayout = new BoxLayout(centertoppanel, BoxLayout.PAGE_AXIS);
        centertoppanel.setLayout(centertoplayout);
        // Toppanel
        toppanel.add(BorderLayout.CENTER, lblEinagbe);
        toppanel.add(BorderLayout.CENTER, tfAnzahlZahlen);
        toppanel.add(BorderLayout.CENTER, checkRandomNumbers);
        // Leftpanel
        leftpanel.add(btnBeenden);
        leftpanel.add(btnArrayErzeugen);
        leftpanel.add(btnSortieren);
        // Center Top panel
        centertoppanel.setMinimumSize(new Dimension(200,200));
        //Centerpanel
        centerpanel.setTopComponent(centertoppanel);
        centerpanel.setBottomComponent(centerbottompanel);
        mainpanel.add(centerpanel);
        //Center Bottom Split
        centerleftpanel.add(taArrayAnzeige);
        centerrightpanel.add(taArraySortAnzeige);
        centerleftpanel.setMinimumSize(new Dimension(320,200));
        centerrightpanel.setMinimumSize(new Dimension(320,200));
        centerbottompanel.setLeftComponent(centerleftpanel);
        centerbottompanel.setRightComponent(centerrightpanel);
        // Buttons
        btnBeenden.setPreferredSize(new Dimension(100, 40));
        btnBeenden.setBounds(200, 500, 120, 30);
        btnSortieren.setPreferredSize(new Dimension(100, 40));
        btnSortieren.setBounds(200, 500, 120, 30);
        btnArrayErzeugen.setPreferredSize(new Dimension(100, 40));
        btnArrayErzeugen.setBounds(200, 500, 120, 30);
        //Colours
        centerrightpanel.setBackground(Color.white);
        centerleftpanel.setBackground(Color.white);
        centertoppanel.setBackground(Color.white);
        leftpanel.setBackground(Color.white);
        toppanel.setBackground(Color.white);
        centerpanel.setBackground(Color.white);
        toppanel.setBackground(Color.white);
        // Add Events
        btnBeenden.addActionListener(this);
        btnSortieren.addActionListener(this);
        btnArrayErzeugen.addActionListener(this);
        // Event Anzahl Zahlen
        tfAnzahlZahlen.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                strAnzahlZahlen = tfAnzahlZahlen.getText();
                iAnzahlZahlen = Integer.parseInt(strAnzahlZahlen);
            }
        });
    }

    // Event Buttons
    @Override
    public void actionPerformed(ActionEvent buttons) {
        switch (buttons.getActionCommand()) {
            case "Beenden":
                gui.setVisible(false);
                break;
            case "Sortieren":
                arraySortShow = sort.sortieren(arrayShow);
                showArraySort();
                break;
            case "Ziehen":
                clear();
                createGuiArray();
                break;
        }
    }

    // Show Array
    protected void showArray() {
        for (int i = 0; i < arrayShow.length; i++) {
            taArrayAnzeige.append(arrayShow[i] + "\n");
        }
    }

    protected void showArraySort() {
        for (int i = 0; i < arraySortShow.length; i++) {
            taArraySortAnzeige.append(arraySortShow[i] + "\n");
        }
    }

    public void clear() {
        arrayShow = null;
        arraySortShow = null;
        taArrayAnzeige.setText("");
        taArraySortAnzeige.setText("");
    }

    // Rückgabe/Übergabe iAnzahlZahlen
    public int getiAnzahlZahlen() {
        return iAnzahlZahlen;
    }


    protected void createGuiArray() {
        //Abfrage - Checkbox angeklickt ja/nein
        if (checkRandomNumbers.isSelected()) { //Checkbox Ja
            if (iAnzahlZahlen != 0) {
                arrayShow = sort.createArray(true, iAnzahlZahlen);
                showArray();
            }
            else { // Error Anzahl Zahlen
                JOptionPane jopError = new JOptionPane();
                jopError.showMessageDialog(null, "Error ");
            }
        }
        else { //Checkbox Nein
            //JTextFelder erstellen nach iAnzahlZahlen
            int i = 0;
            while(i <= iAnzahlZahlen){
                JTextField tfvariable = new JTextField();
                tfvariable.setBackground(Color.red);
                centertoppanel.add(BorderLayout.CENTER, tfvariable);
                tfvariable.setVisible(true);
                i++;
            }

            //Ausgabe Array
            arrayShow = sort.createArray(false, iAnzahlZahlen);
            showArray();
        }
    }
}