package caltool.view.schedule;

import caltool.model.schedule.*;
import caltool.view.*;
import mvp.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class CategoriesEditor extends CalendarToolWindow {

    public CategoriesEditor(Screen screen, Model model,
            CalendarToolUI calToolUI) {
        super(screen, model, calToolUI);
    }

    public Component compose() {
        JPanel panel = new JPanel();
        window.add(panel);
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));

        panel.add(Box.createVerticalStrut(15));
        panel.add(composeList());
        panel.add(Box.createVerticalStrut(25));
        panel.add(composeButtonRow1());
        panel.add(Box.createVerticalStrut(15));
        panel.add(composeButtonRow2());
        panel.add(Box.createVerticalStrut(15));

        window.setTitle("Edit Categories");
        window.pack();

        return window;
    }

    /**
     * Compose the labeled list of cateogries.
     */
    protected Box composeList() {
        Box hbox = Box.createHorizontalBox();
        Box vbox = Box.createVerticalBox();

        JLabel label = new JLabel("Current Categories:");
        label.setAlignmentX(Component.LEFT_ALIGNMENT);
        vbox.add(label);

        /*
         * Build a list with some dummy blank elements.  This will be refined
         * later to add model data.
         */
        String[] dummyData = {
            "                                                                                                      ",
            "                                                                                                      ",
            "                                                                                                      ",
            "                                                                                                      ",
            "                                                                                                      ",
            "                                                                                                      ",
            "                                                                                                      ",
            "                                                                                                      ",
            "                                                                                                      ",
            "                                                                                                      "
        };
        JList list = new JList(dummyData);
        list.setAlignmentX(Component.LEFT_ALIGNMENT);
        list.setBorder(BorderFactory.createLineBorder(Color.black));
        vbox.add(list);

        hbox.add(Box.createHorizontalStrut(25));
        hbox.add(vbox);
        hbox.add(Box.createHorizontalStrut(25));
        return hbox;
    }

    /**
     * Compose the first row of buttons, consisting of Add, Change, and Delete.
     */
    protected Box composeButtonRow1() {

        Box hbox = Box.createHorizontalBox();

        /*
         * Construct the three buttons.
         */ 
        JButton addButton = new JButton("Add");
        JButton changeButton = new JButton("Change");
        JButton deleteButton = new JButton("Delete");

        /*
         * Attach the appropriate action listeners to each button.
         */
        addButton.addActionListener(
            new CategoriesAddButtonListener((Schedule) model, this));

        changeButton.addActionListener(
            new CategoriesChangeButtonListener((Schedule) model, this));

        deleteButton.addActionListener(
            new CategoriesDeleteButtonListener((Schedule) model, this));

        /*
         * Add them to the hbox and return it.
         */
        hbox.add(Box.createHorizontalStrut(15));
        hbox.add(addButton);
        hbox.add(Box.createHorizontalStrut(20));
        hbox.add(changeButton);
        hbox.add(Box.createHorizontalStrut(20));
        hbox.add(deleteButton);
        hbox.add(Box.createHorizontalStrut(15));
        return hbox;

    }

    /**
     * Compose the second row of buttons, consisting of Save As, Load, and
     * Done.
     */
    protected Box composeButtonRow2() {
        Box hbox = Box.createHorizontalBox();

        /*
         * Construct the buttons.
         */
        JButton saveAsButton = new JButton("Save As ...");
        JButton loadButton = new JButton("Load ...");
        JButton doneButton = new JButton("Done");

        /*
         * Attach the appropriate action listeners to each button.
         */
        saveAsButton.addActionListener(
            new CategoriesSaveAsButtonListener((Schedule) model, this));

        loadButton.addActionListener(
            new CategoriesLoadButtonListener((Schedule) model, this));

        doneButton.addActionListener(
            new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    hide();
                }
            }
        );

        /*
         * Add them to the hbox and return it.
         */
        hbox.add(Box.createHorizontalStrut(15));
        hbox.add(saveAsButton);
        hbox.add(Box.createHorizontalStrut(20));
        hbox.add(loadButton);
        hbox.add(Box.createHorizontalStrut(20));
        hbox.add(doneButton);
        hbox.add(Box.createHorizontalStrut(15));
        return hbox;

    }

}