/*
 * Copyright (c) 2007-2011 by The Broad Institute of MIT and Harvard.  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
 * WARRANTES 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 org.apache.log4j.Logger;
import org.broad.igv.PreferenceManager;
import org.broad.igv.ui.IGV;
import org.broad.igv.ui.UIConstants;
import org.broad.igv.ui.util.FileChooserDialog;
import org.broad.igv.util.FileUtils;

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

/**
 * 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);
    private IGV mainFrame;
    private String sessionFile = null;
    private boolean autoload = false;

    public OpenSessionMenuAction(String label, String sessionFile, IGV mainFrame) {
        super(label);
        this.sessionFile = sessionFile;
        this.mainFrame = mainFrame;
        autoload = true;
    }

    public OpenSessionMenuAction(String label, int mnemonic, IGV mainFrame) {
        super(label, null, mnemonic);
        this.mainFrame = mainFrame;
     }

    @Override
    public void actionPerformed(ActionEvent e) {

        //dhmay adding if statement for restore of specific session specified in menu
        if (sessionFile == null || autoload == false) {

            FileChooserDialog dialog = new FileChooserDialog(mainFrame.getMainFrame(), 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().getAbsolutePath();
        }
        doRestoreSession();


    }

    final public void doRestoreSession() {

        // If anything has been loaded warn the users.  Popping up the
        // warning all the time will get annoying.
        if (IGV.getInstance().getAllTracks(false).size() > 0) {
            int status =
                    JOptionPane.showConfirmDialog(
                            mainFrame.getMainFrame(),
                            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) {
            if (FileUtils.isRemote(sessionFile)) {
                boolean merge = false;
                mainFrame.doRestoreSession(sessionFile, null, merge);
            } else {
                File f = new File(sessionFile);
                mainFrame.doRestoreSession(f, null);
            }
        }
    }

}

