/*
    * 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.jcr;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  import javax.jcr.nodetype.NodeType;
  import javax.jcr.security.AccessControlManager;
  import javax.jcr.security.Privilege;
  
  import org.argeo.cms.ui.workbench.WorkbenchUiPlugin;
  import org.argeo.cms.ui.workbench.internal.jcr.parts.ChildNodesPage;
  import org.argeo.cms.ui.workbench.internal.jcr.parts.GenericNodeEditorInput;
  import org.argeo.cms.ui.workbench.internal.jcr.parts.GenericNodePage;
  import org.argeo.cms.ui.workbench.internal.jcr.parts.GenericPropertyPage;
  import org.argeo.cms.ui.workbench.internal.jcr.parts.NodePrivilegesPage;
  import org.argeo.cms.ui.workbench.internal.jcr.parts.NodeVersionHistoryPage;
  import org.argeo.eclipse.ui.EclipseUiException;
  import org.argeo.jcr.JcrUtils;
  import org.eclipse.core.runtime.IProgressMonitor;
  import org.eclipse.ui.IEditorInput;
  import org.eclipse.ui.IEditorSite;
  import org.eclipse.ui.PartInitException;
  import org.eclipse.ui.forms.editor.FormEditor;
  
  /** Default form editor for a Jcr {@link Node} */
  public class DefaultNodeEditor extends FormEditor {
  	private static final long serialVersionUID = 8322127770921612239L;
  
  	// private final static Log log =
  	// LogFactory.getLog(GenericNodeEditor.class);
  	public final static String ID = WorkbenchUiPlugin.PLUGIN_ID
  			+ ".defaultNodeEditor";
  
  	private Node currentNode;
  
  	private GenericNodePage genericNodePage;
  	private GenericPropertyPage genericPropertyPage;
  	private ChildNodesPage childNodesPage;
  	private NodePrivilegesPage nodeRightsManagementPage;
  	private NodeVersionHistoryPage nodeVersionHistoryPage;
  
  	public void init(IEditorSite site, IEditorInput input)
  			throws PartInitException {
  		super.init(site, input);
  		GenericNodeEditorInput nei = (GenericNodeEditorInput) getEditorInput();
  		currentNode = nei.getCurrentNode();
  		this.setPartName(JcrUtils.lastPathElement(nei.getPath()));
  	}
  
  	@Override
  	protected void addPages() {
  		try {
  			genericPropertyPage = new GenericPropertyPage(this,
  					WorkbenchUiPlugin.getMessage("genericNodePageTitle"),
  					currentNode);
  			addPage(genericPropertyPage);
  
  			childNodesPage = new ChildNodesPage(this,
  					WorkbenchUiPlugin.getMessage("childNodesPageTitle"),
  					currentNode);
  			addPage(childNodesPage);
  
  			AccessControlManager accessControlManager = currentNode
  					.getSession().getAccessControlManager();
  			List<Privilege> privileges = new ArrayList<Privilege>();
  			privileges.add(accessControlManager
  					.privilegeFromName(Privilege.JCR_READ_ACCESS_CONTROL));
  			if (accessControlManager.hasPrivileges(currentNode.getPath(),
  					privileges.toArray(new Privilege[0]))) {
  				nodeRightsManagementPage = new NodePrivilegesPage(this,
  						WorkbenchUiPlugin
  								.getMessage("nodeRightsManagementPageTitle"),
  						currentNode);
  				addPage(nodeRightsManagementPage);
  			}
  			if (currentNode.isNodeType(NodeType.MIX_VERSIONABLE)) {
  				nodeVersionHistoryPage = new NodeVersionHistoryPage(this,
  						WorkbenchUiPlugin
  								.getMessage("nodeVersionHistoryPageTitle"),
  						currentNode);
  				addPage(nodeVersionHistoryPage);
  			}
 
 			privileges = new ArrayList<Privilege>();
 			privileges.add(accessControlManager
 					.privilegeFromName(Privilege.JCR_ALL));
 			if (accessControlManager.hasPrivileges(currentNode.getPath(),
 					privileges.toArray(new Privilege[0]))) {
 				genericNodePage = new GenericNodePage(
 						this,
 						WorkbenchUiPlugin.getMessage("propertyEditorPageTitle"),
 						currentNode);
 				addPage(genericNodePage);
 			}
 
 		} catch (RepositoryException e) {
 			throw new EclipseUiException("Cannot get node info for "
 					+ currentNode, e);
 		} catch (PartInitException e) {
 			throw new EclipseUiException("Cannot add page "
 					+ "on node editor for " + currentNode, e);
 		}
 	}
 
 	@Override
 	public void doSaveAs() {
 		// unused compulsory method
 	}
 
 	@Override
 	public void doSave(IProgressMonitor monitor) {
 		try {
 			// Automatically commit all pages of the editor
 			commitPages(true);
 			firePropertyChange(PROP_DIRTY);
 		} catch (Exception e) {
 			throw new EclipseUiException("Error while saving node", e);
 		}
 
 	}
 
 	@Override
 	public boolean isSaveAsAllowed() {
 		return true;
 	}
 
 	Node getCurrentNode() {
 		return currentNode;
 	}
 }