/*****************************************************************************
 * Copyright (c) 2010 Atos Origin.
 *
 *    
 * 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:
 *  Emilien Perico (Atos Origin) emilien.perico@atosorigin.com - Initial API and implementation
 *
 *****************************************************************************/
package org.eclipse.papyrus.uml.controlmode.profile.commands;

import java.util.ArrayList;

import org.eclipse.emf.common.command.CompoundCommand;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.papyrus.infra.services.controlmode.commands.IUncontrolCommand;
import org.eclipse.papyrus.uml.controlmode.profile.helpers.ProfileApplicationHelper;
import org.eclipse.uml2.common.edit.command.ChangeCommand;
import org.eclipse.uml2.uml.Package;
import org.eclipse.uml2.uml.Profile;


/**
 * The Class UMLProfileUncontrolCommand is custom command to manage UML profiles and stereotypes when uncontrol action is performed
 */
public class UMLProfileUncontrolCommand implements IUncontrolCommand {

	/**
	 * {@inheritDoc}
	 */
	public boolean provides(EObject selection, STATE_CONTROL state, Resource source, Resource target) {
		return true;
	}

	/**
	 * {@inheritDoc}
	 */
	public void uncontrol(EditingDomain domain, final EObject selection, STATE_CONTROL state, Resource source, final Resource target, CompoundCommand commandToModify) {
		switch(state) {
		case PRE_MODEL:
			commandToModify.append(new ChangeCommand(domain, new Runnable() {

				public void run() {
					unapplyDuplicateProfiles(selection, target);
				}
			}));
			break;
		case POST_MODEL:
			commandToModify.append(new ChangeCommand(domain, new Runnable() {

				public void run() {
					ProfileApplicationHelper.relocateStereotypeApplications((Package)selection, target);
				}
			}));
			break;
		default:
		}
	}

	/**
	 * Unapply profiles duplicated for control action
	 * 
	 * @param selection
	 * @param target
	 *        the resource target
	 */
	private void unapplyDuplicateProfiles(final EObject selection, Resource target) {
		Package _package = (Package)selection;
		EList<Profile> allAppliedProfiles = _package.getAllAppliedProfiles();
		if(!allAppliedProfiles.isEmpty()) {
			for(Profile profile : new ArrayList<Profile>(_package.getAppliedProfiles())) {
				if(allAppliedProfiles.contains(profile)) {
					// profile is duplicated, unapply it
					ProfileApplicationHelper.removeProfileApplicationDuplication(_package, profile, true);
				}
			}

		}
	}

}