/*
 * Bittorrent Client using Qt and libtorrent.
 * Copyright (C) 2015  Vladimir Golovnev <glassez@yandex.ru>
 * Copyright (C) 2012  Christophe Dumez <chris@qbittorrent.org>
 *
 * This program 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 2
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * In addition, as a special exception, the copyright holders give permission to
 * link this program with the OpenSSL project's "OpenSSL" library (or with
 * modified versions of it that use the same license as the "OpenSSL" library),
 * and distribute the linked executables. You must obey the GNU General Public
 * License in all respects for all of the code used other than "OpenSSL".  If you
 * modify file(s), you may extend this exception to your version of the file(s),
 * but you are not obligated to do so. If you do not wish to do so, delete this
 * exception statement from your version.
 */

#pragma once

#include <QList>
#include <QObject>
#include <QSet>
#include <QString>
#include <QVariantHash>

class QXmlStreamReader;

namespace RSS
{
    namespace Private
    {
        struct ParsingResult
        {
            QString error;
            QString lastBuildDate;
            QString title;
            QList<QVariantHash> articles;
        };

        class Parser : public QObject
        {
            Q_OBJECT

        public:
            explicit Parser(QString lastBuildDate);
            void parse(const QByteArray &feedData);

        signals:
            void finished(const RSS::Private::ParsingResult &result);

        private:
            Q_INVOKABLE void parse_impl(const QByteArray &feedData);
            void parseRssArticle(QXmlStreamReader &xml);
            void parseRSSChannel(QXmlStreamReader &xml);
            void parseAtomArticle(QXmlStreamReader &xml);
            void parseAtomChannel(QXmlStreamReader &xml);
            void addArticle(QVariantHash article);

            QString m_baseUrl;
            ParsingResult m_result;
            QSet<QString> m_articleIDs;
        };
    }
}

Q_DECLARE_METATYPE(RSS::Private::ParsingResult)
