/*
    Stream Client
    Copyright (C) 2022 Jasem Mutlaq (mutlaqja@ikarustech.com)

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/

#pragma once

#include <baseclient.h>
#include <basedevice.h>

#include "mjpeg_streamer.hpp"

#include <chrono>
#include <cstdint>
#include <vector>

using MJPEGStreamer = nadjieb::MJPEGStreamer;

class Client : public INDI::BaseClient
{
    public:
        Client(const QString &name);
        ~Client() = default;

    public:
        bool start();
        bool stop();
        void setPort(uint32_t value)
        {
            m_Port = value;
        }

        bool createHistogram(uint8_t *buffer, uint32_t size, std::vector<uint32_t> &histogram, uint8_t &channels);
        bool drawHistogram(uint8_t *buffer, uint32_t size, std::string &histogram);

        // Maximum frame rate at which histograms are computed and published.
        static constexpr int HISTOGRAM_MAX_FPS = 10;

    private:
        QString m_Name;
        uint32_t m_Port {8080};
        INDI::BaseDevice m_Camera;
        MJPEGStreamer m_Streamer;

        // Throttle histogram computation to HISTOGRAM_MAX_FPS.
        std::chrono::steady_clock::time_point m_lastHistogramTime {};
};
