/* Author: Jeff Dalton <J.Dalton@ed.ac.uk>
 * Updated: Tue Dec  4 00:17:37 2001 by Jeff Dalton
 * Copyright: (c) 2001, AIAI, University of Edinburgh
 */

package ix.ideel;

import javax.swing.*;

import java.awt.Container;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.Dimension;

import java.awt.event.*;

import ix.ip2.*;

import ix.ichat.ChatFrame;

import ix.iview.*;
import ix.iface.util.LogoPanel;
import ix.util.*;

/**
 * The main frame of the I-DEEL user interface.
 */
public class IdeelFrame extends Ip2Frame implements ActionListener {

    Container contentPane;

    ChatFrame chatFrame;

    IssueViewingTable issueViewer; // s.b. just IssueViewer? /\/

    BasicIdeel ideel;

    // /\/: May want some way to find menus my looking at the menu bar
    // components, rather than storing the menus as fields in the frame.
    JMenu fileMenu = new JMenu("File");
    JMenu issueMenu = new JMenu("Issue");
    JMenu toolsMenu = new JMenu("Tools");
    JMenu testMenu = new JMenu("Test", true); // tear-off "Test" menu

    public IdeelFrame(BasicIdeel ideel) {
	super(ideel.displayName);
	this.ideel = ideel;
    }

    protected void setUp() {
	issueViewer = new IssueViewingTable(ideel);

	contentPane = getContentPane();

	setSize(500, 300);
	setJMenuBar(makeMenuBar());
	// Layout manager defaults to BorderLayout.
	// contentPane.setLayout(new FlowLayout()); // probably not too clever

	// Add issue Viewer
	{
	    JPanel issuePanel = new JPanel();
	    issuePanel.add(issueViewer);
	    JScrollPane scroll = new JScrollPane(issuePanel);
	    scroll.setBorder(BorderFactory.createTitledBorder("Issues"));
	    contentPane.add(scroll, BorderLayout.CENTER);
	}

	// Add something that identifies the system etc.
	contentPane.add(ideel.makeLogoPanel(),
			BorderLayout.SOUTH);

    }

    protected void becomeVisible() { // sep method so can do it last
	// Find the "packed" width, then change the height.
	pack();
	{
	    Dimension size = getSize();
	    setSize(new Dimension((int)size.getWidth(), 300));
	}
	setVisible(true);
    }

    protected void ensureDomainEditor() {
	if (domainEditor == null) {
	    domainEditor = makeDomainEditor(ideel, ideel.domain);
	    // domainEditor.setLocation(getX() + 100, getY() + 100);
	}
	domainEditor.setVisible(true);
    }

    public void ensureChat() {
	if (chatFrame == null) {
	    chatFrame = new ChatFrame(ideel, ideel.symbolName + " I-Chat");
	}
	chatFrame.setVisible(true);
    }


    /*
     * Menu bar
     */

    protected JMenuBar makeMenuBar() {
	JMenuBar bar = new JMenuBar();

	// File menu
	bar.add(fileMenu);
	fileMenu.add(makeMenuItem("Load or Edit Domain"));
	fileMenu.add(makeMenuItem("Reset"));
	fileMenu.addSeparator();
	fileMenu.add(makeMenuItem("Exit"));

	// Issue menu
	bar.add(issueMenu);
	issueMenu.add(makeMenuItem("New Issue"));
	issueMenu.add(makeMenuItem("New Issue Expansion"));

	// Tools menu
	bar.add(toolsMenu);
	toolsMenu.add(makeMenuItem("Domain Editor"));
	toolsMenu.add(makeMenuItem("Chat"));

	bar.add(Box.createHorizontalGlue()); // let later items move right

	// Test menu
	bar.add(testMenu);
	ideel.addTestMenuItems();

	return bar;
    }

    protected JMenuItem makeMenuItem(String text) {
	JMenuItem item = new JMenuItem(text);
	item.addActionListener(this);
	return item;
    }

    /*
     * Action interpreter
     */

    public void actionPerformed(ActionEvent e) {
	String command = e.getActionCommand();
	Debug.noteln("I-DEEL action:", command);
	if (command.equals("Exit")) {
	    System.exit(0);
	}
	else if (command.equals("Reset")) {
	    ideel.reset();
	}
	else if (command.equals("Load or Edit Domain")) {
	    ensureDomainEditor();
	}
	else if (command.equals("New Issue")) {
	    issueViewer.newIssue();
	}
	else if (command.equals("New Issue Expansion")) {
	    ensureDomainEditor();
	}
	else if (command.equals("Domain Editor")) {
	    ensureDomainEditor();
	}
	else if (command.equals("Chat")) {
	    ensureChat();
	}
	else
	    Debug.noteln("Nothing to do for", command);
    }

    /**
     * Adds a menu item to the "File" menu.
     */
    public void addFileMenuItem(String text, ActionListener listener) {
	JMenuItem item = new JMenuItem(text);
	item.addActionListener(listener);
	// Add it before the separator before "Exit".
	fileMenu.insert(item, fileMenu.getItemCount() - 2);
    }

    /**
     * Adds a test by adding a menu item to the "Test" menu.
     */
    public void addTest(String text, ActionListener listener) {
	JMenuItem item = new JMenuItem(text);
	item.addActionListener(listener);
	testMenu.add(item);
    }

    /**
     * Adds a test that adds an issue to I-DEEL's issue list.
     * The menu text will be "Add issue" followed by the issue
     * text in quotes.
     */
    public void addTestIssue(int priority, String issueText) {
	String menuText = "Add issue " + Util.quote(issueText);
	addTestIssue(priority, issueText, menuText);
    }

    /**
     * Adds a test that adds an issue to I-DEEL's issue list.
     */
    public void addTestIssue(final int priority,
			     final String issueText,
			     String menuText) {
	addTest(menuText, new ActionListener() {
            public void actionPerformed(ActionEvent e) {
		issueViewer.addIssue(priority, issueText);
	    }
	});
    }

}

// Issues:
// * Perhaps a more abstract name, such as IdeelUserInterface, instead of
//   IdeelFrame.