/*
 * (c) Copyright 2010-2011 AgileBirds
 *
 * This file is part of OpenFlexo.
 *
 * OpenFlexo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OpenFlexo is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openflexo.foundation.dm;

import java.util.Vector;
import java.util.logging.Logger;

import org.openflexo.foundation.Inspectors;
import org.openflexo.foundation.dm.dm.DMAttributeDataModification;
import org.openflexo.foundation.dm.dm.EntityAddedToDiagram;
import org.openflexo.foundation.dm.dm.EntityRemovedFromDiagram;
import org.openflexo.foundation.xml.FlexoDMBuilder;

public class ERDiagram extends DMObject {

	protected static final Logger logger = Logger.getLogger(ERDiagram.class.getPackage().getName());

	private String name;
	private Vector<DMEntity> entities;
	private DMRepository repository;

	/**
	 * Constructor used during deserialization
	 */
	public ERDiagram(FlexoDMBuilder builder) {
		this(builder.dmModel);
		initializeDeserialization(builder);
	}

	/**
	 * Default constructor
	 */
	public ERDiagram(DMModel dmModel) {
		super(dmModel);
		entities = new Vector<DMEntity>();
	}

	@Override
	public final void delete() {
		DMModel model = getDMModel();
		super.delete();
		// This removes the only ref
		model.removeFromDiagrams(this);

		// this method is final because of this call
		deleteObservers();
	}

	@Override
	public String getName() {
		return name;
	}

	@Override
	public void setName(String aName) {
		if (name == null || !name.equals(aName)) {
			String oldName = name;
			name = aName;
			setChanged();
			notifyObservers(new DMAttributeDataModification("name", oldName, aName));
		}
	}

	public Vector<DMEntity> getEntities() {
		return entities;
	}

	public void setEntities(Vector<DMEntity> someEntities) {
		Vector<DMEntity> entitiesToRemove = new Vector<DMEntity>();
		entitiesToRemove.addAll(entities);
		for (DMEntity entity : someEntities) {
			if (entities.contains(entity)) {
				entitiesToRemove.remove(entity);
			} else {
				addToEntities(entity);
			}
		}
		for (DMEntity entity : entitiesToRemove) {
			removeFromEntities(entity);
		}
	}

	public void addToEntities(DMEntity entity) {
		// logger.info("**** addToEntities() "+entity);
		entities.add(entity);
		setChanged();
		notifyObservers(new EntityAddedToDiagram(entity));
	}

	public void removeFromEntities(DMEntity entity) {
		// logger.info("**** removeFromEntities() "+entity);
		entities.remove(entity);
		setChanged();
		notifyObservers(new EntityRemovedFromDiagram(entity));
	}

	@Override
	public Vector<? extends DMObject> getEmbeddedDMObjects() {
		return entities;
	}

	@Override
	public Vector<? extends DMObject> getOrderedChildren() {
		return entities;
	}

	@Override
	public DMModel getParent() {
		return getDMModel();
	}

	@Override
	public boolean isDeletable() {
		return true;
	}

	@Override
	public String getClassNameKey() {
		return "er_diagram";
	}

	@Override
	public String getFullyQualifiedName() {
		return getDMModel().getFullyQualifiedName() + "." + getName();
	}

	@Override
	public String getInspectorName() {
		return Inspectors.DM.ER_DIAGRAM_INSPECTOR;
	}

	public DMRepository getRepository() {
		return repository;
	}

	public void setRepository(DMRepository aRepository) {
		repository = aRepository;
	}

}