/*
    * 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.cms.ui.workbench.internal.jcr.commands;
  
  import java.util.Arrays;
  
  import org.argeo.cms.ui.jcr.model.RepositoryElem;
  import org.argeo.cms.ui.workbench.WorkbenchUiPlugin;
  import org.argeo.cms.ui.workbench.jcr.JcrBrowserView;
  import org.argeo.eclipse.ui.dialogs.ErrorFeedback;
  import org.argeo.eclipse.ui.dialogs.SingleValue;
  import org.eclipse.core.commands.AbstractHandler;
  import org.eclipse.core.commands.ExecutionEvent;
  import org.eclipse.core.commands.ExecutionException;
  import org.eclipse.jface.viewers.ISelection;
  import org.eclipse.jface.viewers.IStructuredSelection;
  import org.eclipse.ui.handlers.HandlerUtil;
  
  /** Create a new JCR workspace */
  public class CreateWorkspace extends AbstractHandler {
  
  	public final static String ID = WorkbenchUiPlugin.PLUGIN_ID
  			+ ".addFolderNode";
  
  	public Object execute(ExecutionEvent event) throws ExecutionException {
  
  		ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event)
  				.getActivePage().getSelection();
  
  		JcrBrowserView view = (JcrBrowserView) HandlerUtil
  				.getActiveWorkbenchWindow(event).getActivePage()
  				.findView(HandlerUtil.getActivePartId(event));
  
  		if (selection != null && !selection.isEmpty()
  				&& selection instanceof IStructuredSelection) {
  			Object obj = ((IStructuredSelection) selection).getFirstElement();
  			if (!(obj instanceof RepositoryElem))
  				return null;
  
  			RepositoryElem repositoryNode = (RepositoryElem) obj;
  			String workspaceName = SingleValue.ask("Workspace name",
  					"Enter workspace name");
  			if (workspaceName != null) {
  				if (Arrays.asList(repositoryNode.getAccessibleWorkspaceNames())
  						.contains(workspaceName)) {
  					ErrorFeedback.show("Workspace " + workspaceName
  							+ " already exists.");
  				} else {
  					repositoryNode.createWorkspace(workspaceName);
  					view.nodeAdded(repositoryNode);
  				}
  			}
  		} else {
  			ErrorFeedback.show("Cannot create workspace");
  		}
  		return null;
  	}
  }