/**
 * Copyright (c) 2010-2012 ISBAN S.L
 * 
 * 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:
 * 		Ruben De Dios (ISBAN S.L)
 * 		Andrez Alvarez Mattos (ISBAN S.L)
 */
package org.eclipse.gmf.tooling.simplemap.migrate.ui;

import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.plugin.EcorePlugin;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.eclipse.gmf.gmfgraph.Canvas;
import org.eclipse.gmf.mappings.Mapping;
import org.eclipse.gmf.tooldef.Palette;
import org.eclipse.gmf.tooling.simplemap.diagram.part.Messages;
import org.eclipse.gmf.tooling.simplemap.diagram.part.SimpleMapEditorDiagramEditorUtil;
import org.eclipse.gmf.tooling.simplemap.diagram.part.SimplemapCreationWizard;
import org.eclipse.gmf.tooling.simplemap.diagram.part.SimplemapDiagramEditorPlugin;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.actions.WorkspaceModifyOperation;

public class TransformToSimpleMappingWizard extends SimplemapCreationWizard {

	private Mapping myMapping;

	private Canvas myCanvas;

	private Palette myPalette;

	@Override
	public boolean performFinish() {

		TransformToSimpleMappingOperation myOperation = new TransformToSimpleMappingOperation(createResourceSet());
		URI uri = URI.createPlatformResourceURI(getMapFile().getFullPath().toString(), true);
		try {
			myOperation.loadMappingModel(uri, new NullProgressMonitor());
		} catch (CoreException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		myMapping = myOperation.getMapping();
		myCanvas = myMapping != null ? myMapping.getDiagram().getDiagramCanvas() : null;
		myPalette = myMapping != null ? myMapping.getDiagram().getPalette() : null;

		IRunnableWithProgress op = new WorkspaceModifyOperation(null) {

			protected void execute(IProgressMonitor monitor) throws CoreException, InterruptedException {
				diagram = new SimplemapMigrationEditorUtil().createDiagram(diagramModelFilePage.getURI(), monitor, myMapping, myCanvas, myPalette);

				if (isOpenNewlyCreatedDiagramEditor() && diagram != null) {
					try {
						SimpleMapEditorDiagramEditorUtil.openDiagram(diagram);
					} catch (PartInitException e) {
						ErrorDialog.openError(getContainer().getShell(), Messages.SimplemapCreationWizardOpenEditorError, null, e.getStatus());
					}
				}
			}
		};
		try {
			getContainer().run(false, true, op);
		} catch (InterruptedException e) {
			return false;
		} catch (InvocationTargetException e) {
			if (e.getTargetException() instanceof CoreException) {
				ErrorDialog.openError(getContainer().getShell(), Messages.SimplemapCreationWizardCreationError, null, ((CoreException) e.getTargetException()).getStatus());
			} else {
				SimplemapDiagramEditorPlugin.getInstance().logError("Error creating diagram", e.getTargetException()); //$NON-NLS-1$
			}
			return false;
		}
		return diagram != null;

	}

	protected ResourceSet createResourceSet() {
		final ResourceSetImpl rs = new ResourceSetImpl();
		rs.getURIConverter().getURIMap().putAll(EcorePlugin.computePlatformURIMap());
		return rs;
	}

	protected IFile getMapFile() {
		return (IFile) selection.getFirstElement();
	}

}