/////////////////////////////////////////////////////////////////////////////
//
// Project ProjectForge Community Edition
//         www.projectforge.org
//
// Copyright (C) 2001-2014 Kai Reinhard (k.reinhard@micromata.de)
//
// ProjectForge is dual-licensed.
//
// This community edition 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; version 3 of the License.
//
// This community edition 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, see http://www.gnu.org/licenses/.
//
/////////////////////////////////////////////////////////////////////////////

package org.projectforge.plugins.poll;

import org.projectforge.continuousdb.SchemaGenerator;
import org.projectforge.continuousdb.UpdateEntry;
import org.projectforge.continuousdb.UpdateEntryImpl;
import org.projectforge.continuousdb.UpdatePreCheckStatus;
import org.projectforge.continuousdb.UpdateRunningStatus;
import org.projectforge.database.MyDatabaseUpdateDao;
import org.projectforge.plugins.poll.attendee.PollAttendeeDO;
import org.projectforge.plugins.poll.event.PollEventDO;
import org.projectforge.plugins.poll.result.PollResultDO;

/**
 * @author M. Lauterbach (m.lauterbach@micromata.de)
 * 
 */
public class PollPluginUpdates
{
  static MyDatabaseUpdateDao dao;

  final static Class< ? >[] doClasses = new Class< ? >[] { //
    PollDO.class, PollEventDO.class, PollAttendeeDO.class, PollResultDO.class};

  @SuppressWarnings("serial")
  public static UpdateEntry getInitializationUpdateEntry()
  {
    return new UpdateEntryImpl(PollPlugin.ID, "2013-01-13", "Adds tables T_PLUGIN_POLL_*.") {

      @Override
      public UpdatePreCheckStatus runPreCheck()
      {
        // Check only the oldest table.
        if (dao.doEntitiesExist(PollDO.class) == false) {
          // The oldest table doesn't exist, therefore the plug-in has to initialized completely.
          return UpdatePreCheckStatus.READY_FOR_UPDATE;
        }
        return UpdatePreCheckStatus.ALREADY_UPDATED;
      }

      @Override
      public UpdateRunningStatus runUpdate()
      {
        new SchemaGenerator(dao).add(doClasses).createSchema();
        dao.createMissingIndices();
        return UpdateRunningStatus.DONE;
      }
    };
  }
}