package gui.actions;

import gui.handlers.InputHandler;

import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

import javax.swing.JTextField;

public class MyKeyListener implements KeyListener {
    private final int type;
    private final int custom_len;

    public MyKeyListener(final int val, final int val2) {
        super();
        this.type = val;
        this.custom_len = val2;
    }

    public MyKeyListener(final int val) {
        super();
        this.type = val;
        this.custom_len = 0;
    }

/*
* type == 1 :: (Unos do 30 karaktera string) - InputHandler.getMaxInputLenStr()
* type == 2 :: (Unos do 30 karaktera int) - InputHandler.getMaxInputLenStr()
* type == 3 :: (Unos do 3 karaktera string) - InputHandler.getMinInputLenStr()
* type == 4 :: (Unos do 3 karaktera int) - InputHandler.getMinInputLenStr()
* type == 5 :: RegEx (todo)
* type == 6 :: Specijalni Znakovi (todo)
* type == 7 :: Digit-only [custom len]
* type == 8 :: String [custom len]
* type == 9 :: Telefon (Specijalan slucaj kada je potrebno samo da detektuje brojeve i znak "+")
 */

    @Override
    public void keyTyped(KeyEvent e) {
        if (e.isActionKey() || e.getKeyCode() == KeyEvent.VK_ENTER || e.getKeyCode() == KeyEvent.VK_BACK_SPACE)
            return;

        if (e.getSource() instanceof JTextField) {
            JTextField txtf = (JTextField)e.getComponent();
            InputHandler ih = InputHandler.getInstance();
            char c = e.getKeyChar();

            switch(type) {

            case 1: // Unos do 30 znakova [string]
                if (txtf.getText().length() > ih.getMaxInputLenStr()) {
                    txtf.setText(txtf.getText().substring(0, ih.getMaxInputLenStr()));
                }
                break;

            case 2: // Unos do 30 znakova [int]
                if (!Character.isDigit(c))
                    e.consume();

                if (txtf.getText().length() > ih.getMaxInputLenStr()) {
                    txtf.setText(txtf.getText().substring(0, ih.getMaxInputLenStr()));
                }
                break;

            case 3: // Unos do 3 znaka [string]
                if (txtf.getText().length() > ih.getMaxInputLenInt()) {
                    txtf.setText(txtf.getText().substring(0, ih.getMaxInputLenInt()));
                }
                break;

            case 4: // Unos do 3 karaktera [int]
                if (!Character.isDigit(c))
                    e.consume();

                if (txtf.getText().length() > ih.getMaxInputLenInt()) {
                    txtf.setText(txtf.getText().substring(0, ih.getMaxInputLenInt()));
                }
                break;

            case 5: // Mora nesto ostati i za TODO
                // Meh
                break;

            case 6: // Mora nesto ostati i za TODO
                // Meh
                break;

            case 7: // Samo int uz custom duzinu unosa
                if (type == 7 && custom_len > 0) {
                    if (!Character.isDigit(c))
                        e.consume();

                    if (txtf.getText().length() > custom_len) {
                        txtf.setText(txtf.getText().substring(0, custom_len));
                    }
                }
                break;

            case 8: // String uz custom duzinu unosa
                if (type == 8 && custom_len > 0) {
                    if (txtf.getText().length() > custom_len) {
                        txtf.setText(txtf.getText().substring(0, custom_len));
                    }
                }
                break;

            case 9: // Specijalan slucaj...telefooon!
                if (!Character.isDigit(c) && c != '+') // Dozvoljeni su samo brojevi i "+" znak zbog tel. broja...
                    e.consume();
                if (txtf.getText().length() > ih.getMaxInputLenStr()) {
                    txtf.setText(txtf.getText().substring(0, ih.getMaxInputLenStr()));
                }
                break;

            default:
                // Nesto kao poruka neka cisto reda radi...za debug.
                System.out.println("Nepoznata tip proslijedjen za listener :: MyKeyListener.java");
                break;
            }
        }
        return;
    }


    @Override
    public void keyPressed(KeyEvent e) {
        // TODO Auto-generated method stub
    }

    @Override
    public void keyReleased(KeyEvent e) {
    }

}