/***************************************************************************
 *   Copyright (C) 2005 by Joris Guisson                                   *
 *   joris.guisson@gmail.com                                               *
 *                                                                         *
 *   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.             *
 ***************************************************************************/
#ifndef BTHTTPTRACKER_H
#define BTHTTPTRACKER_H

#include "tracker.h"
#include <QTimer>
#include <ktorrent_export.h>

class KJob;

namespace KIO
{
class MetaData;
}

namespace bt
{
/**
 * @author Joris Guisson
 * @brief Communicates with the tracker
 *
 * This class uses the HTTP protocol to communicate with the tracker.
 */
class KTORRENT_EXPORT HTTPTracker : public Tracker
{
    Q_OBJECT
public:
    HTTPTracker(const QUrl &url, TrackerDataSource *tds, const PeerID &id, int tier);
    ~HTTPTracker() override;

    void start() override;
    void stop(WaitJob *wjob = 0) override;
    void completed() override;
    Uint32 failureCount() const override
    {
        return failures;
    }
    void scrape() override;

    static void setProxy(const QString &proxy, const bt::Uint16 proxy_port);
    static void setProxyEnabled(bool on);
    [[deprecated]] static void setUseQHttp(bool on);

private Q_SLOTS:
    void onKIOAnnounceResult(KJob *j);
    void onScrapeResult(KJob *j);
    void emitInvalidURLFailure();
    void onTimeout();
    void manualUpdate() override;

private:
    void doRequest(WaitJob *wjob = 0);
    bool updateData(const QByteArray &data);
    void setupMetaData(KIO::MetaData &md);
    void doAnnounceQueue();
    void doAnnounce(const QUrl &u);
    void onAnnounceResult(const QUrl &url, const QByteArray &data, KJob *j);

private:
    KJob *active_job;
    QList<QUrl> announce_queue;
    QString event;
    QTimer timer;
    QString error;
    Uint32 failures;
    bool supports_partial_seed_extension;

    static bool proxy_on;
    static QString proxy;
    static Uint16 proxy_port;
};

}

#endif
