/*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *         http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.argeo.slc.client.ui.dist.commands;
  
  import javax.jcr.Node;
  import javax.jcr.Property;
  import javax.jcr.Repository;
  import javax.jcr.RepositoryException;
  import javax.jcr.Session;
  
  import org.argeo.cms.ArgeoTypes;
  import org.argeo.cms.ui.workbench.util.CommandUtils;
  import org.argeo.jcr.JcrUtils;
  import org.argeo.slc.SlcException;
  import org.argeo.slc.client.ui.dist.DistPlugin;
  import org.eclipse.core.commands.AbstractHandler;
  import org.eclipse.core.commands.ExecutionEvent;
  import org.eclipse.core.commands.ExecutionException;
  import org.eclipse.jface.dialogs.MessageDialog;
  import org.eclipse.jface.resource.ImageDescriptor;
  
  /**
   * Un-register a remote repository by deleting the corresponding RepoNode from
   * the node Repository. It does not affect the repository instance
   */
  public class UnregisterRemoteRepo extends AbstractHandler {
  	// private static final Log log = LogFactory
  	// .getLog(UnregisterRemoteRepo.class);
  	
  	public final static String ID = DistPlugin.PLUGIN_ID + ".unregisterRemoteRepo";
  	public final static String DEFAULT_LABEL = "Unregister";
  	public final static ImageDescriptor DEFAULT_ICON = DistPlugin
  			.getImageDescriptor("icons/removeItem.gif");
  
  	public final static String PARAM_REPO_PATH = DistPlugin.PLUGIN_ID
  			+ ".repoNodePath";
  
  	// DEPENCY INJECTION
  	private Repository nodeRepository;
  
  	public Object execute(ExecutionEvent event) throws ExecutionException {
  		Session session = null;
  		String repoPath = event.getParameter(PARAM_REPO_PATH);
  		if (repoPath == null)
  			return null;
  
  		try {
  			session = nodeRepository.login();
  			Node rNode = session.getNode(repoPath);
  			if (rNode.isNodeType(ArgeoTypes.ARGEO_REMOTE_REPOSITORY)) {
  
  				String alias = rNode.getProperty(Property.JCR_TITLE)
  						.getString();
  				String msg = "Your are about to unregister remote repository: "
  						+ alias + "\n" + "Are you sure you want to proceed ?";
  
  				boolean result = MessageDialog.openConfirm(DistPlugin
  						.getDefault().getWorkbench().getDisplay()
  						.getActiveShell(), "Confirm Delete", msg);
  
  				if (result) {
  					rNode.remove();
  					session.save();
  				}
  				CommandUtils.callCommand(RefreshDistributionsView.ID);
  			}
  		} catch (RepositoryException e) {
  			throw new SlcException(
  					"Unexpected error while unregistering remote repository.",
  					e);
  		} finally {
  			JcrUtils.logoutQuietly(session);
  		}
  		return null;
  	}
  
  	// DEPENCY INJECTION
  	public void setNodeRepository(Repository nodeRepository) {
  		this.nodeRepository = nodeRepository;
  	}
  }