///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 Edouard Griffiths, F4EXB.                                  //
//                                                                               //
// 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 as version 3 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 V3 for more details.                               //
//                                                                               //
// You should have received a copy of the GNU General Public License             //
// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
///////////////////////////////////////////////////////////////////////////////////

#include <QColor>

#include "dsp/dspengine.h"
#include "util/simpleserializer.h"
#include "settings/serializable.h"
#include "ft8demodsettings.h"

const int FT8DemodSettings::m_ft8SampleRate = 12000;
#ifdef SDR_RX_SAMPLE_24BIT
const int FT8DemodSettings::m_minPowerThresholdDB = -120;
const float FT8DemodSettings::m_mminPowerThresholdDBf = 120.0f;
#else
const int FT8DemodSettings::m_minPowerThresholdDB = -100;
const float FT8DemodSettings::m_mminPowerThresholdDBf = 100.0f;
#endif

FT8DemodSettings::FT8DemodSettings() :
    m_channelMarker(nullptr),
    m_spectrumGUI(nullptr),
    m_rollupState(nullptr)
{
    m_filterBank.resize(10);
    resetToDefaults();
}

void FT8DemodSettings::resetToDefaults()
{
    m_agc = false;
    m_recordWav = false;
    m_logMessages = false;
    m_nbDecoderThreads = 3;
    m_decoderTimeBudget = 0.5;
    m_useOSD = false;
    m_osdDepth = 0;
    m_osdLDPCThreshold = 70;
    m_verifyOSD = false;
    m_volume = 1.0;
    m_inputFrequencyOffset = 0;
    m_rgbColor = QColor(0, 192, 255).rgb();
    m_title = "FT8 Demodulator";
    m_streamIndex = 0;
    m_useReverseAPI = false;
    m_reverseAPIAddress = "127.0.0.1";
    m_reverseAPIPort = 8888;
    m_reverseAPIDeviceIndex = 0;
    m_reverseAPIChannelIndex = 0;
    m_workspaceIndex = 0;
    m_hidden = false;
    m_filterIndex = 0;
    resetBandPresets();
}

void FT8DemodSettings::resetBandPresets()
{
    m_bandPresets.clear();
    m_bandPresets.push_back(FT8DemodBandPreset{ "160m",   1840, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{  "80m",   3573, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{  "60m",   5357, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{  "40m",   7074, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{  "30m",  10136, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{  "20m",  14074, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{  "17m",  18100, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{  "15m",  21074, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{  "12m",  24915, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{  "10m",  28074, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{   "6m",  50313, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{   "4m",  70100, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{   "2m", 144120, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{"1.25m", 222065, 0});
    m_bandPresets.push_back(FT8DemodBandPreset{ "70cm", 432065, 0});
}

QByteArray FT8DemodSettings::serialize() const
{
    SimpleSerializer s(1);
    QByteArray bytetmp;

    QDataStream *stream = new QDataStream(&bytetmp, QIODevice::WriteOnly);
    *stream << m_bandPresets;
    delete stream;
    s.writeBlob(2, bytetmp);


    s.writeS32(1, m_inputFrequencyOffset);
    s.writeS32(3, m_volume * 10.0);

    if (m_spectrumGUI) {
        s.writeBlob(4, m_spectrumGUI->serialize());
    }

    s.writeU32(5, m_rgbColor);
    s.writeBool(6, m_recordWav);
    s.writeBool(7, m_logMessages);
    s.writeS32(8, m_nbDecoderThreads);
    s.writeFloat(9, m_decoderTimeBudget);
    s.writeBool(11, m_agc);
    s.writeBool(12, m_useOSD);
    s.writeS32(13, m_osdDepth);
    s.writeS32(14, m_osdLDPCThreshold);
    s.writeBool(15, m_verifyOSD);
    s.writeString(16, m_title);
    s.writeBool(18, m_useReverseAPI);
    s.writeString(19, m_reverseAPIAddress);
    s.writeU32(20, m_reverseAPIPort);
    s.writeU32(21, m_reverseAPIDeviceIndex);
    s.writeU32(22, m_reverseAPIChannelIndex);
    s.writeS32(23, m_streamIndex);

    if (m_rollupState) {
        s.writeBlob(24, m_rollupState->serialize());
    }

    s.writeS32(25, m_workspaceIndex);
    s.writeBlob(26, m_geometryBytes);
    s.writeBool(27, m_hidden);
    s.writeU32(29, m_filterIndex);

    for (unsigned int i = 0; i <  10; i++)
    {
        s.writeS32(100 + 10*i, m_filterBank[i].m_spanLog2);
        s.writeS32(101 + 10*i, m_filterBank[i].m_rfBandwidth / 100.0);
        s.writeS32(102 + 10*i, m_filterBank[i].m_lowCutoff / 100.0);
        s.writeS32(103 + 10*i, (int) m_filterBank[i].m_fftWindow);
    }

    return s.final();
}

bool FT8DemodSettings::deserialize(const QByteArray& data)
{
    SimpleDeserializer d(data);

    if(!d.isValid())
    {
        resetToDefaults();
        return false;
    }

    if(d.getVersion() == 1)
    {
        QByteArray bytetmp;
        qint32 tmp;
        uint32_t utmp;
        QString strtmp;

        d.readBlob(2, &bytetmp);
        QDataStream readStream(&bytetmp, QIODevice::ReadOnly);
        readStream >> m_bandPresets;

        d.readS32(1, &m_inputFrequencyOffset, 0);
        d.readS32(3, &tmp, 30);
        m_volume = tmp / 10.0;

        if (m_spectrumGUI)
        {
            d.readBlob(4, &bytetmp);
            m_spectrumGUI->deserialize(bytetmp);
        }

        d.readU32(5, &m_rgbColor);
        d.readBool(6, &m_recordWav, false);
        d.readBool(7, &m_logMessages, false);
        d.readS32(8, &m_nbDecoderThreads, 3);
        d.readFloat(9, &m_decoderTimeBudget, 0.5);
        d.readBool(11, &m_agc, false);
        d.readBool(12, &m_useOSD, false);
        d.readS32(13, &m_osdDepth, 0);
        d.readS32(14, &m_osdLDPCThreshold, 70);
        d.readBool(15, &m_verifyOSD, false);
        d.readString(16, &m_title, "SSB Demodulator");
        d.readBool(18, &m_useReverseAPI, false);
        d.readString(19, &m_reverseAPIAddress, "127.0.0.1");
        d.readU32(20, &utmp, 0);

        if ((utmp > 1023) && (utmp < 65535)) {
            m_reverseAPIPort = utmp;
        } else {
            m_reverseAPIPort = 8888;
        }

        d.readU32(21, &utmp, 0);
        m_reverseAPIDeviceIndex = utmp > 99 ? 99 : utmp;
        d.readU32(22, &utmp, 0);
        m_reverseAPIChannelIndex = utmp > 99 ? 99 : utmp;
        d.readS32(23, &m_streamIndex, 0);

        if (m_rollupState)
        {
            d.readBlob(24, &bytetmp);
            m_rollupState->deserialize(bytetmp);
        }

        d.readS32(25, &m_workspaceIndex, 0);
        d.readBlob(26, &m_geometryBytes);
        d.readBool(27, &m_hidden, false);
        d.readU32(29, &utmp, 0);
        m_filterIndex = utmp < 10 ? utmp : 0;

        for (unsigned int i = 0; (i < 10); i++)
        {
            d.readS32(100 + 10*i, &m_filterBank[i].m_spanLog2, 3);
            d.readS32(101 + 10*i, &tmp, 30);
            m_filterBank[i].m_rfBandwidth = tmp * 100.0;
            d.readS32(102+ 10*i, &tmp, 3);
            m_filterBank[i].m_lowCutoff = tmp * 100.0;
            d.readS32(103 + 10*i, &tmp, (int) FFTWindow::Blackman);
            m_filterBank[i].m_fftWindow =
                (FFTWindow::Function) (tmp < 0 ? 0 : tmp > (int) FFTWindow::BlackmanHarris7 ? (int) FFTWindow::BlackmanHarris7 : tmp);
        }

        return true;
    }
    else
    {
        resetToDefaults();
        return false;
    }
}

QDataStream& operator<<(QDataStream& out, const FT8DemodBandPreset& bandPreset)
{
    out << bandPreset.m_name;
    out << bandPreset.m_baseFrequency;
    out << bandPreset.m_channelOffset;
    return out;
}

QDataStream& operator>>(QDataStream& in, FT8DemodBandPreset& bandPreset)
{
    in >> bandPreset.m_name;
    in >> bandPreset.m_baseFrequency;
    in >> bandPreset.m_channelOffset;
    return in;
}