package net.knarcraft.serverlauncher.userinterface;

import javax.imageio.ImageIO;
import javax.swing.*;
import javax.swing.border.EmptyBorder;
import java.awt.*;
import java.io.IOException;

/**
 * A class for creating the gui.
 *
 * @author		Kristian Knarvik <kristian.knarvik@knett.no>
 * @version	0.0.0.1
 * @since		0.0.0.1
 */
public class GUI {
    public GUI() {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (ClassNotFoundException | UnsupportedLookAndFeelException | InstantiationException | IllegalAccessException e) {
            e.printStackTrace();
        }

        JFrame frame = new JFrame("Minecraft server launcher");
        ImageIcon img;
        try {
            img = new ImageIcon(ImageIO.read(GUI.class.getResourceAsStream("/files/GUIIcon.png")));
        } catch (IOException | IllegalArgumentException e) {
            img = new ImageIcon("files/GUIIcon.png");
        }
        frame.setIconImage(img.getImage());
        frame.setLocation(0,0);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JMenuBar menu = new JMenuBar();

        // A menu containing a user's options
        JMenu optionsMenu = new JMenu("Options");
        JCheckBoxMenuItem backgroundMode = new JCheckBoxMenuItem("Run in background on exit");
        JCheckBoxMenuItem delayStartup = new JCheckBoxMenuItem("Delay startup");
        JCheckBoxMenuItem downloadJars = new JCheckBoxMenuItem("Download Jars");

        // A menu containing helpful information
        JMenu helpMenu = new JMenu("Help");
        JMenuItem errors = new JMenuItem("Errors");
        JMenuItem setup = new JMenuItem("Setup");
        JMenuItem warning = new JMenuItem("Warning");
        JMenuItem manualUpdate = new JMenuItem("Manual update");

        // A menu containing various information
        JMenu infoMenu = new JMenu("Info");
        JMenu options = new JMenu("Options");
        JMenu about = new JMenu("About");
        JMenuItem backgroundModeInfo = new JMenuItem("Run in background on exit");
        JMenuItem delayStartupInfo = new JMenuItem("Delay Startup");
        JMenuItem downloadJarsInfo = new JMenuItem("Download jars");
        JMenuItem aboutAbout = new JMenuItem("About");
        JMenuItem aboutStory = new JMenuItem("Story");

        // Connects menu items to each other
        optionsMenu.add(backgroundMode);
        optionsMenu.add(delayStartup);
        optionsMenu.add(downloadJars);
        menu.add(optionsMenu);
        helpMenu.add(errors);
        helpMenu.add(setup);
        helpMenu.add(warning);
        helpMenu.add(manualUpdate);
        menu.add(helpMenu);
        options.add(backgroundModeInfo);
        options.add(delayStartupInfo);
        options.add(downloadJarsInfo);
        infoMenu.add(options);
        about.add(aboutAbout);
        about.add(aboutStory);
        infoMenu.add(about);
        menu.add(infoMenu);
        frame.setJMenuBar(menu);

        JTabbedPane tabs = new JTabbedPane(SwingConstants.TOP);
        //First tab
        JPanel controlPanel = new JPanel();
        controlPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
        GroupLayout controlLayout = new GroupLayout(controlPanel);
        controlPanel.setLayout(controlLayout);
        JLabel basicControls = customLabel("Basic controls");
        JButton sendStart = customButton("Start servers");
        JButton sendStop = customButton("Stop servers");
        JButton backup = customButton("Backup");
        JButton viewConsole = customButton("View server consoles");
        JLabel profile = customLabel("Profile");

        controlLayout.setVerticalGroup(
                controlLayout.createSequentialGroup()
                        .addGroup(controlLayout.createParallelGroup(GroupLayout.Alignment.BASELINE)
                                .addComponent(basicControls))
                        .addGroup(controlLayout.createParallelGroup(GroupLayout.Alignment.BASELINE)
                                .addComponent(sendStart)
                                .addComponent(sendStop)
                                .addComponent(backup)
                                .addComponent(viewConsole))
                        .addGroup(controlLayout.createParallelGroup(GroupLayout.Alignment.BASELINE)
                                .addComponent(profile)));

        controlLayout.setHorizontalGroup(
                controlLayout.createSequentialGroup()
                        .addGroup(controlLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
                                .addComponent(basicControls)
                                .addComponent(profile)
                        .addComponent(sendStart))
                        .addGroup(controlLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
                        .addComponent(sendStop))
                        .addGroup(controlLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
                        .addComponent(backup))
                        .addGroup(controlLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
                        .addComponent(viewConsole)));


        tabs.addTab("Control panel", null, controlPanel, "Basic server controls");

        JPanel serversPanel = new JPanel();
        tabs.addTab("Control servers", null, serversPanel, "Easy server commands");

        frame.add(tabs);

        // TODO: Finish gui


        frame.setVisible(true);


        Insets insets = frame.getInsets();
        frame.setSize(450 + 2 * insets.left, 170 + insets.top + insets.bottom);
    }

    private JButton customButton(String text) {
        JButton button = new JButton(text);
        button.setMargin(new Insets(3,5,3,5));
        return button;
    }
    private JLabel customLabel(String text) {
        JLabel label = new JLabel(text);
        label.setBorder(new EmptyBorder(1, 2, 1, 0));
        return label;
    }
}