/*
 * Copyright (C) 2013-2022 The enviroCar project
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.envirocar.server.mongo.convert;

import java.util.Date;

import org.joda.time.DateTime;

import dev.morphia.converters.SimpleValueConverter;
import dev.morphia.converters.TypeConverter;
import dev.morphia.mapping.MappedField;
import dev.morphia.mapping.MappingException;

/**
 * TODO JavaDoc
 *
 * @author Christian Autermann <autermann@uni-muenster.de>
 */
public class DateTimeConverter extends TypeConverter implements
        SimpleValueConverter {
    public DateTimeConverter() {
        super(DateTime.class);
    }

    @Override
    public Object encode(Object value, MappedField optionalExtraInfo) {
        return value == null ? null : new Date(((DateTime) value).getMillis());
    }

    @Override
    @SuppressWarnings("rawtypes")
    public Object decode(Class c, Object o, MappedField i) throws
            MappingException {
        if (o == null) {
            return null;
        } else if (o instanceof DateTime) {
            return o;
        } else if (o instanceof Number) {
            return new DateTime(((Number) o).longValue());
        } else if (o instanceof Date) {
            return new DateTime(((Date) o).getTime());
        } else {
            return new DateTime(o);
        }
    }
}
