/**
 * Copyright (C) 2011-2013 Nicolas Vinot <aeris@imirhil.fr>
 * Copyright (C) 2017 Christian Pierre MOMON <cmomon@april.org>
 *
 * This file is part of (April) Hebdobot.
 *
 * Hebdobot 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.
 *
 * Hebdobot 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 Hebdobot.  If not, see <http://www.gnu.org/licenses/>
 */
package org.april.hebdobot.review;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * The Class CollectiveTopic.
 */
public class CollectiveTopic extends Topic
{
    private final Messages messages;

    /**
     * Instantiates a new collective topic.
     *
     * @param title
     *            the title
     */
    public CollectiveTopic(final String title)
    {
        super(title);

        this.messages = new Messages();
    }

    /* (non-Javadoc)
     * @see org.april.hebdobot.review.Topic#add(org.april.hebdobot.review.Message)
     */
    @Override
    public void add(final Message message)
    {
        this.messages.add(message);
    }

    /**
     * Gets the messages.
     *
     * @return the messages
     */
    public List<Message> getMessages()
    {
        return this.messages;
    }

    /* (non-Javadoc)
     * @see org.april.hebdobot.review.Topic#getParticipants()
     */
    @Override
    public Set<String> getParticipants()
    {
        final Set<String> participants = new HashSet<String>();
        for (final Message message : this.messages)
        {
            participants.add(message.getAuthor());
        }
        return participants;
    }
}