/*
 * Copyright (c) 2007-2010 by The Broad Institute, Inc. and the Massachusetts Institute of Technology.
 * All Rights Reserved.
 *
 * This software is licensed under the terms of the GNU Lesser General Public License (LGPL), Version 2.1 which
 * is available at http://www.opensource.org/licenses/lgpl-2.1.php.
 *
 * THE SOFTWARE IS PROVIDED "AS IS." THE BROAD AND MIT MAKE NO REPRESENTATIONS OR WARRANTIES OF
 * ANY KIND CONCERNING THE SOFTWARE, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR THE ABSENCE OF LATENT
 * OR OTHER DEFECTS, WHETHER OR NOT DISCOVERABLE.  IN NO EVENT SHALL THE BROAD OR MIT, OR THEIR
 * RESPECTIVE TRUSTEES, DIRECTORS, OFFICERS, EMPLOYEES, AND AFFILIATES BE LIABLE FOR ANY DAMAGES OF
 * ANY KIND, INCLUDING, WITHOUT LIMITATION, INCIDENTAL OR CONSEQUENTIAL DAMAGES, ECONOMIC
 * DAMAGES OR INJURY TO PROPERTY AND LOST PROFITS, REGARDLESS OF WHETHER THE BROAD OR MIT SHALL
 * BE ADVISED, SHALL HAVE OTHER REASON TO KNOW, OR IN FACT SHALL KNOW OF THE POSSIBILITY OF THE
 * FOREGOING.
 */

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package org.broad.igv.ui.action;

import com.jidesoft.utils.SwingWorker;
import org.apache.log4j.Logger;
import org.broad.igv.PreferenceManager;
import org.broad.igv.ui.IGVMainFrame;
import org.broad.igv.ui.UIConstants;
import org.broad.igv.ui.util.FileChooserDialog;
import org.broad.igv.ui.util.UIUtilities;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.io.File;

/**
 * This menu action classes is used for both "Open Session ..." and load recent
 * session menu items.  In the "Open Session..." the user has to specify a
 * session file through the file menu.  For "load recent"  the action is
 * instantiated with a specific session file.
 *
 * @author jrobinso
 */
public class OpenSessionMenuAction extends MenuAction {

    private static Logger log = Logger.getLogger(OpenSessionMenuAction.class);
    IGVMainFrame mainFrame;

    File sessionFile = null;

    public OpenSessionMenuAction(String label, File sessionFile, IGVMainFrame mainFrame) {
        super(label);
        this.sessionFile = sessionFile;
        this.mainFrame = mainFrame;
        setToolTipText(UIConstants.RESTORE_SESSION_TOOLTIP);
    }

    public OpenSessionMenuAction(String label, int mnemonic, IGVMainFrame mainFrame) {
        super(label, null, mnemonic);
        this.mainFrame = mainFrame;
        setToolTipText(UIConstants.RESTORE_SESSION_TOOLTIP);
    }

    @Override
    public void actionPerformed(ActionEvent e) {

        FileChooserDialog dialog = new FileChooserDialog(mainFrame, true);
        dialog.setTitle("Open Session");
        dialog.setSelectedFile(null);
        dialog.setFileSelectionMode(JFileChooser.FILES_ONLY);

        File lastSessionDirectory =
                PreferenceManager.getInstance().getLastSessionDirectory();
        dialog.setCurrentDirectory(lastSessionDirectory);
        dialog.setVisible(true);

        if (dialog.isCanceled()) {
            return;
        }
        sessionFile = dialog.getSelectedFile();
        doRestoreSession();

    }

    final public void doRestoreSession() {

        // If anything has been loaded warn the users.  Popping up the
        // warning all the time will get annoying.
        if (IGVMainFrame.getInstance().getTrackManager().getAllTracks(false).size() > 0) {
            int status =
                    JOptionPane.showConfirmDialog(
                            mainFrame,
                            UIConstants.OVERWRITE_SESSION_MESSAGE,
                            null,
                            JOptionPane.OK_CANCEL_OPTION,
                            JOptionPane.PLAIN_MESSAGE,
                            null);

            if (status == JOptionPane.CANCEL_OPTION ||
                    status == JOptionPane.CLOSED_OPTION) {
                return;
            }
        }

        if (sessionFile != null) {

            SwingWorker worker = new SwingWorker() {
                @Override
                protected Object doInBackground() throws Exception {
                    mainFrame.doRestoreSession(sessionFile, null);
                    return null;
                }
            };
            worker.execute();

        }
    }

}

