package maryshelley;

import java.io.*;
import java.util.*;

import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;

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

import java.net.URL;
import java.io.IOException;

/**
 *
 * @author Addlient Shaym
 */
public class MIDlet extends JPanel implements ActionListener {

    String newline = "\n";
    static String[] langtext = getText("/sys/language.lng");
    protected static final String buttonString = "JButton";
    static String[] toc = loadTableOfContents(false);
    static String[] tocfile = loadTableOfContents(true);
    private JList list;
    String[] filetxt = getText("/txt/text.txt");

    public static void main(String[] args) {
        for (int i = 0; i < toc.length; i++) {
            System.out.println(toc[i]);
        }
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }

    public static void createAndShowGUI() {

        //Create and set up the window.
        JFrame frame = new JFrame(langtext[0]);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Create and set up the content pane.
        MIDlet Shelley = new MIDlet();
        frame.setJMenuBar(Shelley.createMenuBar());
        //frame.setContentPane(demo.createContentPane());
        frame.add(new MIDlet());
              //frame.pack();
        //Display the window.
        frame.setSize(450, 260);
        frame.setExtendedState(JFrame.MAXIMIZED_BOTH);
//        Toolkit tk = Toolkit.getDefaultToolkit();
//        int xSize = ((int) tk.getScreenSize().getWidth());
//        int ySize = ((int) tk.getScreenSize().getHeight());
//        frame.setSize(xSize, ySize);
//        frame.setUndecorated(true);
        frame.setVisible(true);
    }

    public MIDlet() {
        setLayout(new BorderLayout());
        list = new JList(toc);
        list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        list.setSelectedIndex(0);
        //list.addListSelectionListener(this);
         
        
        JScrollPane listScrollPane = new JScrollPane(list);
        JTextPane textPane = createTextPane(filetxt);
        JScrollPane paneScrollPane = new JScrollPane(textPane);
        paneScrollPane.setVerticalScrollBarPolicy(
                JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        paneScrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        paneScrollPane.setPreferredSize(new Dimension(250, 155));
        paneScrollPane.setMinimumSize(new Dimension(10, 10));

        //Put the editor pane and the text pane in a split pane.
        JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, listScrollPane, paneScrollPane);
        splitPane.setOneTouchExpandable(true);
        splitPane.setResizeWeight(0);
        JPanel rightPane = new JPanel(new GridLayout(1, 0));
        rightPane.add(splitPane);
        add(rightPane, BorderLayout.CENTER);

    }
    
    protected void updateTextPane(String file){
        
    }

    private JTextPane createTextPane(String[] filetxt) {
        java.util.List<String> styles = new ArrayList<String>();
        java.util.List<String> doctext = new ArrayList<String>();
        String[] possibleStyles = {
        "[regular]",
        "[italic]",
        "[bold]",
        "[small]",
        "[large]",
        "[button]",
        "[icon]",
        "[center]"
        };
        for(int i = 0; i<filetxt.length; i++){
            for(int s = 0; s<possibleStyles.length; s++){
                if(filetxt[i].startsWith(possibleStyles[s])){
                    styles.add(possibleStyles[s]);
                }
            }
        }
        String[] initStyles = styles.toArray(new String[styles.size()]);
        for(int t = 0; t<filetxt.length; t++){
            doctext.add(new StringBuffer(filetxt[t]).delete(0, initStyles[t].length()).toString()+"\n");
        }
        String[] doctxt = doctext.toArray(new String[doctext.size()]);
        JTextPane textPane = new JTextPane();
        textPane.setEditable(false);
        StyledDocument doc = textPane.getStyledDocument();
        addStylesToDocument(doc);

        try {
            for (int i = 0; i < doctxt.length; i++) {
                if (initStyles[i].equals("[center]")) {
                    SimpleAttributeSet attribs = new SimpleAttributeSet();
                    StyleConstants.setAlignment(attribs, StyleConstants.ALIGN_CENTER);
                    textPane.setParagraphAttributes(attribs, true);
                } else if(initStyles[i].equals("[icon]")){
                    ImageIcon txtIcon = createImageIcon(doctxt[i].replaceAll(newline, ""), "image");
                    if (txtIcon != null) {
                    SimpleAttributeSet attribs = new SimpleAttributeSet();
                    StyleConstants.setIcon(attribs, txtIcon);
                    StyleConstants.setAlignment(attribs, StyleConstants.ALIGN_CENTER);
                    textPane.setParagraphAttributes(attribs, true);
                    }
                }else {
                    SimpleAttributeSet attribs = new SimpleAttributeSet();
                    StyleConstants.setAlignment(attribs, StyleConstants.ALIGN_JUSTIFIED);
                    textPane.setParagraphAttributes(attribs, true);
                }
                doc.insertString(doc.getLength(), doctxt[i], doc.getStyle(initStyles[i]));
            }
        } catch (BadLocationException ble) {
            System.err.println("Couldn't insert initial text into text pane.");
        }
        textPane.setCaretPosition(0);

        return textPane;
    }

    protected void addStylesToDocument(StyledDocument doc) {
        //Initialize some styles.
        Style def = StyleContext.getDefaultStyleContext().
                getStyle(StyleContext.DEFAULT_STYLE);

        Style regular = doc.addStyle("[regular]", def);
        StyleConstants.setFontFamily(def, "SansSerif");

        Style center = doc.addStyle("[center]", StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE));
        StyleConstants.setAlignment(center, StyleConstants.ALIGN_CENTER);

        Style s = doc.addStyle("[italic]", regular);
        StyleConstants.setItalic(s, true);

        s = doc.addStyle("[bold]", regular);
        StyleConstants.setBold(s, true);

        s = doc.addStyle("[small]", regular);
        StyleConstants.setFontSize(s, 10);

        s = doc.addStyle("[large]", regular);
        StyleConstants.setFontSize(s, 16);

        s = doc.addStyle("[icon]", regular);
        StyleConstants.setAlignment(s, StyleConstants.ALIGN_CENTER);
//        ImageIcon pigIcon = createImageIcon("/img/alex2.png",
//                "image");
//        if (pigIcon != null) {
//            StyleConstants.setIcon(s, pigIcon);
//        }

        s = doc.addStyle("[button]", regular);
        StyleConstants.setAlignment(s, StyleConstants.ALIGN_CENTER);
        ImageIcon soundIcon = createImageIcon("/img/sound.gif",
                "sound icon");
        JButton button = new JButton();
        if (soundIcon != null) {
            button.setIcon(soundIcon);
        } else {
            button.setText("BEEP");
        }
        button.setCursor(Cursor.getDefaultCursor());
        button.setMargin(new Insets(0, 0, 0, 0));
        button.setActionCommand(buttonString);
        button.addActionListener(this);
        StyleConstants.setComponent(s, button);
    }

    public static String[] loadTableOfContents(boolean link) {
        String file = "/sys/tableofcontents.txt";
        String encoding = "windows-1251";
        java.util.List<String> lines = new ArrayList<String>();
        try (
                final InputStream iStream = Runtime.getRuntime().getClass().getResourceAsStream(file);
                final Reader fIStream = new InputStreamReader(iStream, encoding);
                final Scanner scanner = new Scanner(fIStream);) {
            String langline = scanner.nextLine();
//            int i = 0;
            for (int i = 0; langline != null; i++) {
                if (link) {
                    langline = scanner.nextLine();
                }
                lines.add(langline);
                langline = scanner.nextLine();
                if (!link) {
                    langline = scanner.nextLine();
                }
            }
        } catch (IOException | NullPointerException | NoSuchElementException | ArrayIndexOutOfBoundsException e) {
        }
        String[] text = lines.toArray(new String[lines.size()]);
        return text;
    }

    /**
     * Returns an ImageIcon, or null if the path was invalid.
     */
    protected static ImageIcon createImageIcon(String path,
            String description) {
        java.net.URL imgURL = MIDlet.class.getResource(path);
        if (imgURL != null) {
            return new ImageIcon(imgURL, description);
        } else {
            System.err.println("Couldn't find file: " + path);
            return null;
        }
    }

    public JMenuBar createMenuBar() {
        JMenuBar menuBar;
        JMenu menu, submenu;
        JMenuItem menuItem;
        JRadioButtonMenuItem rbMenuItem;
        JCheckBoxMenuItem cbMenuItem;

        //Create the menu bar.
        menuBar = new JMenuBar();

        //Build the first menu.
        menu = new JMenu(langtext[1]);
        menu.setMnemonic(KeyEvent.VK_A);
        menu.getAccessibleContext().setAccessibleDescription("The only menu in this program that has menu items");
        menuBar.add(menu);

        //a group of JMenuItems
        menuItem = new JMenuItem(langtext[2], KeyEvent.VK_T);
        //menuItem.setMnemonic(KeyEvent.VK_T); //used constructor instead
        //menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_1, ActionEvent.ALT_MASK));
        menuItem.addActionListener(this);
        menu.add(menuItem);

        menuItem = new JMenuItem(langtext[3], KeyEvent.VK_T);
        //menuItem.setMnemonic(KeyEvent.VK_T); //used constructor instead
        //menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_1, ActionEvent.ALT_MASK));
        menuItem.addActionListener(this);
        menu.add(menuItem);

        return menuBar;
    }

    public void actionPerformed(ActionEvent e) {
        if (buttonString.equals(e.getActionCommand())) {
            Toolkit.getDefaultToolkit().beep();
        }
        
        JMenuItem source = (JMenuItem) (e.getSource());
        
        if (source.getText().equals(langtext[2])) {
            String[] aboutText = getText("/sys/about.txt");
            JPanel aboutPane = new JPanel(new BorderLayout());
            aboutPane.setOpaque(true);
            JTextPane aboutTextPane = createTextPane(aboutText);
            JScrollPane aboutScrollPane = new JScrollPane(aboutTextPane);
            aboutPane.add(aboutScrollPane, BorderLayout.CENTER);
            JFrame about = new JFrame(langtext[2]);
            about.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
            about.setSize(450, 260);
            about.setContentPane(aboutPane);
            about.setVisible(true);
        }

        if (source.getText().equals(langtext[3])) {
            System.exit(0);
        }
    }
    
    public void valueChanged(ListSelectionEvent e) {
        JList list = (JList)e.getSource();
        //updateLabel(tocfile[list.getSelectedIndex()]);
    }
    
    public static String[] getText(String file) {
        String encoding = "windows-1251";
        java.util.List<String> lines = new ArrayList<String>();
        try (
                final InputStream iStream = Runtime.getRuntime().getClass().getResourceAsStream(file);
                final Reader fIStream = new InputStreamReader(iStream, encoding);
                final Scanner scanner = new Scanner(fIStream);) {
            String langline = scanner.nextLine();
//            int i = 0;
            for (int i = 0; langline != null; i++) {
                lines.add(langline);
                langline = scanner.nextLine();
            }
        } catch (IOException | NullPointerException | NoSuchElementException | ArrayIndexOutOfBoundsException e) {
        }
        String[] text = lines.toArray(new String[lines.size()]);
        return text;
    }
}