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package democleaner;

import java.awt.*;
import java.awt.event.*;
import java.io.File;
import java.util.*;
import javax.swing.*;

public class CleanerUi extends JFrame {

    JFileChooser directoryMenu;
    JButton browseButton = new JButton("Browse"), cleanButton = new JButton("Clean");
    JTextField path = new JTextField();
    JScrollPane scrollLog;
    JTextArea log;
    Container c;

    public CleanerUi() {

        super("demo Cleaner");
        setBounds(100, 100, 350, 410);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        c = getContentPane();
        c.setLayout(new FlowLayout());

        directoryMenu = new JFileChooser();
        directoryMenu.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
        directoryMenu.setDialogTitle("Select demos directory");
        directoryMenu.setAcceptAllFileFilterUsed(false);

        browseButton.addActionListener(
                new ActionListener() {

                    public void actionPerformed(ActionEvent e1) {
                        launchDemoBrowser();
                    }
                });

        cleanButton.setEnabled(false);
        cleanButton.addActionListener(
                new ActionListener() {

                    public void actionPerformed(ActionEvent e1) {
                        cleanDemos();
                    }
                });

        path.setEditable(false);
        path.setPreferredSize(new Dimension(200, 20));

        log = new JTextArea();
        log.setEditable(false);
        scrollLog = new JScrollPane(log);
        scrollLog.setPreferredSize(new Dimension(300, 300));
        log.append("Select your demos directory.\n");

        c.add(browseButton);
        c.add(cleanButton);
        c.add(path);
        c.add(scrollLog);

        setVisible(true);
    }

    private void launchDemoBrowser() {
        if (directoryMenu.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {
            path.setText(directoryMenu.getSelectedFile().toString());
            cleanButton.setEnabled(true);
            log.append("Demo dir: " + directoryMenu.getSelectedFile().toString() + "\n");
        } else {
            log.append("Select demos directory...\n");
        }
    }

    private void cleanDemos() {
        File folder = directoryMenu.getSelectedFile();
        ArrayList<File> files = new ArrayList<File>();

        for (File f : folder.listFiles()) {
            if (f.getName().matches("^.*\\[AP\\]_[0-9]*-[0-9]*-[0-9]*.[dD][mM]_84$")) {
                files.add(f);
            }
        }

        if (!files.isEmpty()) {
            log.append("Cleaning...\n");
            Collections.sort(files);

            String name1 = "";
            String name2 = "";
            for (File f : files) {
                String[] line = f.getName().split("_");
                name1 = "";
                for (int i = 0; i < line.length - 2; i++) {
                    name1 += line[i] + "_";
                }
                name1 = name1.substring(0, name1.length() - 1);
                if (name1.equals(name2)) {
                    log.append("Deleting: ");
                    f.delete();
                } else {
                    log.append("Keeping: ");
                }
                log.append(f.getName() + "\n");
                name2 = name1;
            }
        } else {
            log.append("No demos found.\n");
        }
        log.append("Done.\n");
    }

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