/*
 * Copyright (C) 2003-2009 eXo Platform SAS.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) 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, see<http://www.gnu.org/licenses/>.
 */
package org.exoplatform.wiki.mow.core.api.wiki;

import javax.jcr.Node;
import javax.jcr.PathNotFoundException;
import javax.jcr.RepositoryException;

import org.chromattic.api.ChromatticSession;
import org.chromattic.api.UndeclaredRepositoryException;
import org.chromattic.api.annotations.MappedBy;
import org.chromattic.api.annotations.OneToOne;
import org.chromattic.api.annotations.PrimaryType;
import org.exoplatform.wiki.mow.api.WikiNodeType;
import org.exoplatform.wiki.mow.core.api.WikiStoreImpl;

/**
 * @author <a href="mailto:patrice.lamarque@exoplatform.com">Patrice
 *         Lamarque</a>
 * @version $Revision$
 */
@PrimaryType(name = WikiNodeType.GROUP_WIKI_CONTAINER)
public abstract class GroupWikiContainer extends WikiContainer<GroupWiki> {

  @OneToOne
  @MappedBy(WikiNodeType.Definition.GROUP_WIKI_CONTAINER_NAME)
  public abstract WikiStoreImpl getMultiWiki();

  public GroupWiki addWiki(String wikiOwner) {
    //Group wikis is stored in /Groups/$wikiOwner/ApplicationData/eXoWiki/WikiHome
    wikiOwner = validateWikiOwner(wikiOwner);
    if(wikiOwner == null){
      return null;
    }
    ChromatticSession session = getMultiWiki().getSession();
    Node wikiNode = null;
    try {
      Node rootNode = session.getJCRSession().getRootNode();
      Node groupDataNode = rootNode.getNode("Groups" + wikiOwner + "/" + "ApplicationData");
      try {
        wikiNode = groupDataNode.getNode(WikiNodeType.Definition.WIKI_APPLICATION);
      } catch (PathNotFoundException e) {
        wikiNode = groupDataNode.addNode(WikiNodeType.Definition.WIKI_APPLICATION, WikiNodeType.GROUP_WIKI);
        groupDataNode.save();
      }
    } catch (RepositoryException e) {
      throw new UndeclaredRepositoryException(e);
    }
    GroupWiki gwiki = session.findByNode(GroupWiki.class, wikiNode);
    gwiki.setOwner(wikiOwner);
    gwiki.setGroupWikis(this);
    gwiki.getPreferences();
    session.save();
    gwiki.setWikiService(getwService());
    return gwiki;
  }
  
  protected String validateWikiOwner(String wikiOwner){
    if(wikiOwner == null || wikiOwner.length() == 0){
      return null;
    }
    if(!wikiOwner.startsWith("/")){
      wikiOwner = "/" + wikiOwner;
    }
    if(wikiOwner.endsWith("/")){
      wikiOwner = wikiOwner.substring(0,wikiOwner.length()-1);
    }
    return wikiOwner;
  }
}
