/*
 * :tabSize=4:indentSize=4:noTabs=false:
 * :folding=explicit:collapseFolds=1:
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package projectviewer.config;

//{{{ Imports
import java.io.File;

import java.awt.Dimension;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.awt.Insets;
import java.awt.Point;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JTextField;
import javax.swing.JOptionPane;
import javax.swing.JFileChooser;
import javax.swing.JPopupMenu;

import org.gjt.sp.jedit.jEdit;
import org.gjt.sp.jedit.Buffer;
import org.gjt.sp.jedit.AbstractOptionPane;

import projectviewer.ProjectManager;

import projectviewer.gui.GroupMenu;
import projectviewer.gui.ModalJFileChooser;

import projectviewer.vpt.VPTGroup;
import projectviewer.vpt.VPTProject;
import projectviewer.vpt.VPTRoot;
//}}}

/**
 *  A dialog for configuring the properties of a project.
 *
 *  @author		Marcelo Vanzin
 *  @author		Matt Payne (made slight changes for urlRoot)
 */
public class ProjectPropertiesPane extends AbstractOptionPane implements ActionListener {

	public final static String DEFAULT_URL = "http://";

	//{{{ Instance Variables

	private int result;
	private String lookupPath;
	private VPTProject project;

	private JTextField projName;
	private JTextField projRoot;
	private JTextField projURLRoot;

	private JButton	chooseRoot;
	private JButton chooseGroup;

	private JPopupMenu groupPopupMenu;

	private boolean ok;
	private boolean isNew;

	//}}}

	//{{{ Constructors

	/** Builds the dialog. */
	public ProjectPropertiesPane(VPTProject p, boolean isNew) {
		this(p, isNew, null);
	}

	public ProjectPropertiesPane(VPTProject p, boolean isNew, String lookupPath) {
		super("projectviewer.project_props");
		this.project = p;
		this.ok = true;
		this.isNew = isNew;
		this.lookupPath = lookupPath;
	}

	//}}}

	//{{{ actionPerformed(ActionEvent) method
	/**
	 *  Shows a file chooser so the user can choose the root directory of
	 *  its project. In case the user chooses a directory, the corresponding
	 *  JTextField is updated to show the selection.
	 */
	public void actionPerformed(ActionEvent ae) {
		if (ae.getSource() == chooseRoot) {
			JFileChooser chooser = new ModalJFileChooser();
			chooser.setDialogTitle(jEdit.getProperty("projectviewer.project.options.root_dialog"));
			chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);

			String root = projRoot.getText().trim();
			if (root.length() > 0) {
				chooser.setSelectedFile(new File(root));
				chooser.setCurrentDirectory(new File(root).getParentFile());
			} else if (lookupPath != null) {
				File f = new File(lookupPath);
				if (!f.isDirectory()) {
					f = f.getParentFile();
				}
				chooser.setCurrentDirectory(f.getParentFile());
			} else {
				Buffer b = jEdit.getActiveView().getBuffer();
				chooser.setCurrentDirectory(new File(b.getPath()).getParentFile());
			}

			if (chooser.showDialog(this, jEdit.getProperty("projectviewer.general.choose"))
					== JFileChooser.APPROVE_OPTION) {
				root = chooser.getSelectedFile().getAbsolutePath();
				projRoot.setText(root);
				projRoot.setToolTipText(projRoot.getText());

				if (projName.getText() != null && projName.getText().length() == 0) {
					String name = root.substring(root.lastIndexOf(File.separator) + 1, root.length());
					projName.setText(name);
				}
			}
		} else if (ae.getSource() == chooseGroup) {
			if (groupPopupMenu == null) {
				GroupMenu gm = new GroupMenu(null, false, false, this);
				groupPopupMenu = new JPopupMenu();
				gm.populate(groupPopupMenu, VPTRoot.getInstance(), jEdit.getActiveView());
			}

			Point p = chooseGroup.getLocation();
			groupPopupMenu.show(this, (int) p.getX(), (int) p.getY() + chooseGroup.getHeight());
		} else if (ae.getSource() instanceof VPTGroup) {
			project.setProperty("projectviewer.new-parent", ae.getSource());
			chooseGroup.setText(((VPTGroup)ae.getSource()).getName());
			groupPopupMenu.setVisible(false);
		}

	} //}}}

	//{{{ _save() method
	/** Updates the project with the info supplied by the user. */
	protected void _save() {
		String name = projName.getText().trim();
		ok = true;

		if (name.length() == 0) {
			JOptionPane.showMessageDialog(
				this,
				jEdit.getProperty("projectviewer.project.options.no_name"),
				jEdit.getProperty("projectviewer.project.options.error.title"),
				JOptionPane.ERROR_MESSAGE
			 );
			 ok = false;
		}

		if (isNew && ProjectManager.getInstance().hasProject(name)) {
			JOptionPane.showMessageDialog(
				this,
				jEdit.getProperty("projectviewer.project.options.name_exists"),
				jEdit.getProperty("projectviewer.project.options.error.title"),
				JOptionPane.ERROR_MESSAGE
			 );
			 ok = false;
		}

		String root = projRoot.getText().trim();
		if (root.length() == 0) {
			JOptionPane.showMessageDialog(
				this,
				jEdit.getProperty("projectviewer.project.options.no_root"),
				jEdit.getProperty("projectviewer.project.options.error.title"),
				JOptionPane.ERROR_MESSAGE
			 );
			 ok = false;
		} else if (!(new File(root).exists())) {
			JOptionPane.showMessageDialog(
				this,
				jEdit.getProperty("projectviewer.project.options.root_error"),
				jEdit.getProperty("projectviewer.project.options.error.title"),
				JOptionPane.ERROR_MESSAGE
			 );
			 ok = false;
		}

		String urlRoot = projURLRoot.getText().trim();

		if (ok) {
			project.setName(name);
			project.setRootPath(root);
			if (urlRoot.length() != 0 && !urlRoot.equals(DEFAULT_URL)) {
				project.setURL(urlRoot);
			} else {
				project.setURL(null);
			}
		}
	} //}}}

	//{{{ _init() method
	/** Load the GUI components of the dialog. */
	protected void _init() {
		// Builds the dialog

		GridBagLayout gridbag = new GridBagLayout();
		GridBagConstraints gc = new GridBagConstraints();
		gc.fill = GridBagConstraints.HORIZONTAL;
		gc.insets = new Insets(3,3,3,3);
		setLayout(gridbag);

		// Project name

		JLabel label = new JLabel(jEdit.getProperty("projectviewer.project.options.name"));
		gc.weightx = 0;
		gc.gridx = 0;
		gc.gridy = 0;
		gc.gridwidth = 1;
		gridbag.setConstraints(label,gc);
		add(label);

		projName = new JTextField();
		projName.setText(project.getName());
		gc.weightx = 1;
		gc.gridx = 1;
		gc.gridy = 0;
		gc.gridwidth = 2;
		gridbag.setConstraints(projName,gc);
		add(projName);

		// Project root
		label = new JLabel(jEdit.getProperty("projectviewer.project.options.root"));
		gc.weightx = 0;
		gc.gridx = 0;
		gc.gridy = 1;
		gc.gridwidth = 1;
		gridbag.setConstraints(label,gc);
		add(label);

		projRoot = new JTextField();
		projRoot.setText(project.getRootPath());
		projRoot.setToolTipText(projRoot.getText());
		projRoot.setPreferredSize(
			new Dimension(50, (int)projRoot.getPreferredSize().getHeight())
		);

		gc.weightx = 1;
		gc.gridx = 1;
		gc.gridy = 1;
		gc.gridwidth = 1;
		gridbag.setConstraints(projRoot,gc);
		add(projRoot);


		chooseRoot = new JButton(jEdit.getProperty("projectviewer.project.options.root_choose"));
		chooseRoot.addActionListener(this);
		gc.weightx = 0;
		gc.gridx = 2;
		gc.gridy = 1;
		gc.gridwidth = 1;
		gridbag.setConstraints(chooseRoot,gc);
		add(chooseRoot);

		// URL Root for web projects.  Used to launch files in web browser against webserver

		label = new JLabel(jEdit.getProperty("projectviewer.project.options.url_root"));
		gc.weightx = 0;
		gc.gridx = 0;
		gc.gridy = 2;
		gc.gridwidth = 1;
		gridbag.setConstraints(label, gc);

		add(label);
		projURLRoot = new JTextField();
		projURLRoot.setToolTipText(jEdit.getProperty("projectviewer.project.options.url_root.tooltip"));
		if (project.getURL() != null) {
			projURLRoot.setText(project.getURL());
			projURLRoot.setToolTipText(project.getURL());
		} else {
			projURLRoot.setText(DEFAULT_URL);
			projURLRoot.setToolTipText(DEFAULT_URL);
		}

		gc.weightx = 1;
		gc.gridx = 1;
		gc.gridy = 2;
		gc.gridwidth = 2;
		gridbag.setConstraints(projURLRoot, gc);
		add(projURLRoot);

		// The group where the project will be attached
		label = new JLabel(jEdit.getProperty("projectviewer.project.options.parent_group"));
		gc.weightx = 0;
		gc.gridx = 0;
		gc.gridy = 3;
		gc.gridwidth = 1;
		gridbag.setConstraints(label, gc);
		add(label);

		VPTGroup parent = (VPTGroup) project.getParent();
		if (parent == null) {
			parent = VPTRoot.getInstance();
		}
		chooseGroup = new JButton(parent.getName());

		gc.weightx = 1;
		gc.gridx = 1;
		gc.gridy = 3;
		gc.gridwidth = 2;
		gridbag.setConstraints(chooseGroup, gc);
		chooseGroup.addActionListener(this);
		add(chooseGroup);

		// finish
		setPreferredSize(new Dimension(300,250));
	} //}}}

	//{{{ isOK() method
	protected boolean isOK() { return ok; } //}}}

}