/*
*  This file is part of openauto project.
*  Copyright (C) 2018 f1x.studio (Michal Szwaj)
*
*  openauto 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 3 of the License, or
*  (at your option) any later version.

*  openauto 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 openauto. If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

#include <RtAudio.h>
#include "IAudioOutput.hpp"
#include "SequentialBuffer.hpp"

namespace openauto
{
namespace projection
{

class RtAudioOutput: public IAudioOutput
{
public:
    RtAudioOutput(uint32_t channelCount, uint32_t sampleSize, uint32_t sampleRate);
    bool open() override;
    void write(aasdk::messenger::Timestamp::ValueType timestamp, const aasdk::common::DataConstBuffer& buffer) override;
    void start() override;
    void stop() override;
    void suspend() override;
    uint32_t getSampleSize() const override;
    uint32_t getChannelCount() const override;
    uint32_t getSampleRate() const override;

private:
    void doSuspend();
    static int audioBufferReadHandler(void* outputBuffer, void* inputBuffer, unsigned int nBufferFrames,
                                      double streamTime, RtAudioStreamStatus status, void* userData);

    uint32_t channelCount_;
    uint32_t sampleSize_;
    uint32_t sampleRate_;
    SequentialBuffer audioBuffer_;
    std::unique_ptr<RtAudio> dac_;
    std::mutex mutex_;
};

}
}