/*
 * Copyright (c) 2009-2010 The Regents of the University of California.
 * All rights reserved.
 *
 * '$Author: crawl $'
 * '$Date: 2015-04-23 16:55:56 +0000 (Thu, 23 Apr 2015) $' 
 * '$Revision: 33365 $'
 * 
 * Permission is hereby granted, without written agreement and without
 * license or royalty fees, to use, copy, modify, and distribute this
 * software and its documentation for any purpose, provided that the above
 * copyright notice and the following two paragraphs appear in all copies
 * of this software.
 *
 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
 * FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
 * THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
 * PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
 * CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
 * ENHANCEMENTS, OR MODIFICATIONS.
 *
 */

package org.kepler.modulemanager.gui;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutionException;

import javax.swing.DefaultListModel;
import javax.swing.JList;
import javax.swing.SwingWorker;

import org.kepler.modulemanager.RepositoryLocations;



/**
 * Created by David Welker.
 * Date: Sep 18, 2009
 * Time: 10:38:53 AM
 */
public class ModulesList extends JList
{
    //private List<String> testReleases = new ArrayList<String>();

    public ModulesList()
    {
        super();
        //Use an empty default list model, since the permanent model will be calculated in the background.
        DefaultListModel model = new DefaultListModel();
        model.addElement("Calculating...");
        setModel( model );
        populate();
    }

    /* NOTE: this code to show test releases does not work since it relies on
     * the module/suite containing the file module-info/test-release to denote
     * it as a test release. this may have been the original design, but test
     * releases are now a separate branch on the svn repository.
     
    public void setShowTestReleases(boolean showTestReleases)
    {
        if( showTestReleases )
            showTestReleases();
        else
            hideTestReleases();
    }

    private void showTestReleases()
    {
        DefaultListModel model = (DefaultListModel)getModel();
        for( String testRelease : testReleases )
            model.addElement(testRelease);
    }

    private void hideTestReleases()
    {
        DefaultListModel model = (DefaultListModel)getModel();
        for( String testRelease : testReleases )
          model.removeElement(testRelease);
    }
    */
    
    public void populate()
    {
        SwingWorker<DefaultListModel, Void> worker = new SwingWorker<DefaultListModel, Void>()
        {

            @Override
            public DefaultListModel doInBackground() throws Exception
            {
                DefaultListModel listModel = new DefaultListModel();
                List<String> lines = new ArrayList<String>();
                List<String> files = new ArrayList<String>();
                
                try
                {
                  URL url = new URL(RepositoryLocations.getReleaseLocation());
                  
                  BufferedReader br = null;
                  InputStreamReader stream = null;
                        try {
                                stream = new InputStreamReader(url.openStream());
                                br = new BufferedReader(stream);
                                String line = null;
                                while ((line = br.readLine()) != null)
                                {
                                        lines.add(line);
                                }
                        } finally {
                                if(br != null) {
                                        br.close();
                                }
                                if(stream != null) {
                                        stream.close();
                                }
                        }
                  
                  for (String l : lines)
                  {
                    if (l.trim().startsWith("<dir name=")
                        || l.trim().startsWith("<file name="))
                    {
                      files.add(l.split("\"")[1]);
                    }
                  }
                }
                catch(Exception e)
                {
                  System.out.println("Could not get suite list from SVN: " + e.getMessage());
                  e.printStackTrace();
                }

    
                
                for(String module : files)
                {
                    listModel.addElement(module);
                }

                return listModel;                                          
            }

            @Override
            public void done()
            {
                try
                {
                    setModel(get());
                }
                catch (InterruptedException e)
                {
                    e.printStackTrace();
                }
                catch (ExecutionException e)
                {
                    e.printStackTrace();
                }
            }
        };
        worker.execute();
    }


}