/**
 * Copyright (C) 2012-2013 Selventa, Inc.
 *
 * This file is part of the OpenBEL Framework.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * The OpenBEL Framework 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 Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with the OpenBEL Framework. If not, see <http://www.gnu.org/licenses/>.
 *
 * Additional Terms under LGPL v3:
 *
 * This license does not authorize you and you are prohibited from using the
 * name, trademarks, service marks, logos or similar indicia of Selventa, Inc.,
 * or, in the discretion of other licensors or authors of the program, the
 * name, trademarks, service marks, logos or similar indicia of such authors or
 * licensors, in any marketing or advertising materials relating to your
 * distribution of the program or any covered product. This restriction does
 * not waive or limit your obligation to keep intact all copyright notices set
 * forth in the program as delivered to you.
 *
 * If you distribute the program in whole or in part, or any modified version
 * of the program, and you assume contractual liability to the recipient with
 * respect to the program or modified version, then you will indemnify the
 * authors and licensors of the program for any liabilities that these
 * contractual assumptions directly impose on those licensors and authors.
 */
package org.openbel.framework.common.bel.converters;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.openbel.bel.model.BELAnnotation;
import org.openbel.framework.common.model.Annotation;
import org.openbel.framework.common.model.AnnotationDefinition;
import org.openbel.framework.common.model.CommonModelFactory;

public class BELAnnotationConverter extends
        BELConverter<BELAnnotation, List<Annotation>> {
    private final BELAnnotationDefinitionConverter badc =
            new BELAnnotationDefinitionConverter();
    private final Map<String, AnnotationDefinition> adefs;

    public BELAnnotationConverter(Map<String, AnnotationDefinition> adefs) {
        this.adefs = adefs;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public List<Annotation> convert(BELAnnotation ba) {
        if (ba == null) {
            return null;
        }

        List<Annotation> annotations = new ArrayList<Annotation>();
        AnnotationDefinition ad =
                adefs.get(ba.getAnnotationDefinition().getName());

        for (String value : ba.getValues()) {
            annotations.add(CommonModelFactory.getInstance().createAnnotation(
                    value, ad));
        }

        return annotations;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public BELAnnotation convert(List<Annotation> a) {
        if (a == null) {
            return null;
        }

        List<String> values = new ArrayList<String>();
        AnnotationDefinition ad = null;
        for (int i = 0; i < a.size(); i++) {
            Annotation ann = a.get(i);
            if (i == 0) {
                ad = ann.getDefinition();
            } else if (ad != null && !ad.equals(ann.getDefinition())) {
                throw new IllegalStateException(
                        "annotations must have equal definitions.");
            }

            values.add(ann.getValue());
        }

        return new BELAnnotation(badc.convert(ad), values);
    }
}