/* Copyright (C) 2016
 * swift project Community / Contributors
 *
 * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
 * directory of this distribution. No part of swift project, including this file, may be copied, modified, propagated,
 * or distributed except according to the terms contained in the LICENSE file.
 */

//! \file

#ifndef BLACKSOUND_TONEPAIR_H
#define BLACKSOUND_TONEPAIR_H

#include "blacksoundexport.h"
#include "blackmisc/pq/frequency.h"
#include "blackmisc/pq/time.h"

#include <tuple>

namespace BlackSound
{
    //! Tone pair to be played
    class BLACKSOUND_EXPORT CTonePair
    {
    public:
        //! Play two tones with frequencies f for t milliseconds
        CTonePair(const BlackMisc::PhysicalQuantities::CFrequency &frequency,
              const BlackMisc::PhysicalQuantities::CFrequency &secondaryFrequency,
              const BlackMisc::PhysicalQuantities::CTime &duration);

        //! Get frequency of the first tone
        int getFirstFrequencyHz() const { return m_firstFrequencyHz; }

        //! Get frequency of the second tone
        int getSecondFrequencyHz() const { return m_secondFrequencyHz; }

        //! Get play duration
        qint64 getDurationMs() const { return m_durationMs; }

        //! Comparison operator
        friend bool operator <(const CTonePair& lhs, const CTonePair& rhs)
        {
            return std::tie(lhs.m_firstFrequencyHz, lhs.m_secondFrequencyHz, lhs.m_durationMs)
                    < std::tie(rhs.m_firstFrequencyHz, rhs.m_secondFrequencyHz, rhs.m_durationMs);
        }

    private:
        int m_firstFrequencyHz;  //!< first tone's frequency, use 0 for silence
        int m_secondFrequencyHz; //!< second tone's frequency, or 0
        qint64 m_durationMs;     //!< How long to play (duration)
    };
}

#endif // guard