/*
 *
 * Copyright (C) 2007-2015 Licensed to the Comunes Association (CA) under
 * one or more contributor license agreements (see COPYRIGHT for details).
 * The CA licenses this file to you under the GNU Affero General Public
 * License version 3, (the "License"); you may not use this file except in
 * compliance with the License. This file is part of kune.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package cc.kune.core.client.sn.actions.conditions;

import cc.kune.common.client.actions.ui.descrip.GuiActionDescrip;
import cc.kune.common.client.actions.ui.descrip.GuiAddCondition;
import cc.kune.core.client.state.Session;
import cc.kune.core.shared.dto.StateAbstractDTO;
import cc.kune.core.shared.dto.StateContainerDTO;
import cc.kune.core.shared.dto.StateContentDTO;

import com.google.inject.Inject;
import com.google.inject.Singleton;

// TODO: Auto-generated Javadoc
/**
 * The Class IsCurrentStateEditableCondition.
 * 
 * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado)
 */
@Singleton
public class IsCurrentStateEditableCondition implements GuiAddCondition {

  /** The session. */
  private final Session session;

  /**
   * Instantiates a new checks if is current state editable condition.
   * 
   * @param session
   *          the session
   */
  @Inject
  public IsCurrentStateEditableCondition(final Session session) {
    this.session = session;
  }

  /*
   * (non-Javadoc)
   * 
   * @see
   * cc.kune.common.client.actions.ui.descrip.GuiAddCondition#mustBeAdded(cc
   * .kune.common.client.actions.ui.descrip.GuiActionDescrip)
   */
  @Override
  public boolean mustBeAdded(final GuiActionDescrip descr) {
    final StateAbstractDTO currentState = session.getCurrentState();
    if (currentState == null) {
      return false;
    } else {
      if (currentState instanceof StateContentDTO) {
        return ((StateContentDTO) currentState).getContentRights().isEditable();
      } else {
        // session.getContainerState() instanceof StateContentDTO)
        return ((StateContainerDTO) currentState).getGroupRights().isEditable();
      }
    }

  }
}