//------------------------------------------------------------------------------
// Copyright (c) 2005, 2007 IBM Corporation and others.
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// which accompanies this distribution, and is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// Contributors:
// IBM Corporation - initial implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.library.xmi.internal.migration;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.common.CommonPlugin;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.URIConverter;
import org.eclipse.emf.ecore.util.EContentsEList;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.ecore.util.EContentsEList.FeatureIterator;
import org.eclipse.emf.ecore.xmi.XMLResource;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
import org.eclipse.epf.common.serviceability.MsgBox;
import org.eclipse.epf.diagram.model.util.GraphicalDataHelper;
import org.eclipse.epf.diagram.model.util.GraphicalDataManager;
import org.eclipse.epf.library.edit.TngAdapterFactory;
import org.eclipse.epf.library.edit.util.ModelStructure;
import org.eclipse.epf.library.edit.util.TngUtil;
import org.eclipse.epf.library.util.ResourceUtil;
import org.eclipse.epf.library.xmi.XMILibraryPlugin;
import org.eclipse.epf.library.xmi.XMILibraryResources;
import org.eclipse.epf.persistence.MethodLibraryPersister;
import org.eclipse.epf.persistence.MultiFileResourceSetImpl;
import org.eclipse.epf.persistence.MultiFileSaveUtil;
import org.eclipse.epf.persistence.MultiFileXMISaveImpl;
import org.eclipse.epf.persistence.migration.IMigrator;
import org.eclipse.epf.persistence.migration.MigrationResourceHandler;
import org.eclipse.epf.persistence.migration.MigrationUtil;
import org.eclipse.epf.persistence.migration.UpgradeCallerInfo;
import org.eclipse.epf.persistence.util.PersistenceResources;
import org.eclipse.epf.persistence.util.PersistenceUtil;
import org.eclipse.epf.uma.Activity;
import org.eclipse.epf.uma.Diagram;
import org.eclipse.epf.uma.GraphNode;
import org.eclipse.epf.uma.MethodElement;
import org.eclipse.epf.uma.MethodLibrary;
import org.eclipse.epf.uma.MethodPackage;
import org.eclipse.epf.uma.MethodPlugin;
import org.eclipse.epf.uma.Property;
import org.eclipse.epf.uma.RoleDescriptor;
import org.eclipse.epf.uma.SemanticModelBridge;
import org.eclipse.epf.uma.TaskDescriptor;
import org.eclipse.epf.uma.UMASemanticModelBridge;
import org.eclipse.epf.uma.UmaPackage;
import org.eclipse.epf.uma.VariabilityType;
import org.eclipse.epf.uma.ecore.impl.MultiResourceEObject;
import org.eclipse.epf.uma.util.UmaUtil;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;

/**
 * @author Weiping Lu - Feb 12, 2007
 * @since 1.2
 */
public class Migrator103 extends MigratorBase {
	
	public void migrate(String libPath, IProgressMonitor monitor) throws Exception {
		migrate(libPath, monitor, null);
	}
	
	public void migrate(String libPath, IProgressMonitor monitor, UpgradeCallerInfo info) throws Exception {
		File libFile = new File(libPath);

		ResourceUtil.open(libFile.getParent(), monitor);

		MultiFileResourceSetImpl resourceSet = null;
		try {
			// load the library
			//
			updateStatus(monitor, PersistenceResources.loadLibraryTask_name);

			resourceSet = new MultiFileResourceSetImpl(false);
						
			resourceSet.getLoadOptions().put(
					XMLResource.OPTION_RECORD_UNKNOWN_FEATURE, Boolean.TRUE);

			MethodLibrary lib = resourceSet.loadLibrary(libPath);
						
			// load all elements in memory
			//
			updateStatus(monitor, PersistenceResources.loadResourcesTask_name);
			
			updateAllContents(monitor, lib);
			
			// To do here: 
			// Call GMF diagram API to convert diagram data			

			// save all files
			//
			updateStatus(monitor, PersistenceResources.saveLibraryTask_name);
			Map saveOptions = resourceSet.getDefaultSaveOptions();
			resourceSet.save(saveOptions, true);

			updateStatus(monitor,
					PersistenceResources.refreshLibraryFilesTask_name);
			ResourceUtil.refreshResources(lib, monitor);
		} finally {
			if (resourceSet != null) {
				resourceSet.reset();
				resourceSet = null;
			}
		}

	}

	protected void updateElement(MethodElement element, IProgressMonitor monitor) throws Exception {		
		MigrationUtil.formatValue(element);
	}

}