///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018 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 <QMessageBox>
#include <QCheckBox>
#include <QFileDialog>
#include <QResizeEvent>

#include "dsp/dspengine.h"
#include "dsp/dspcommands.h"
#include "device/deviceapi.h"
#include "device/deviceuiset.h"
#include "util/simpleserializer.h"
#include "gui/glspectrum.h"
#include "gui/basicdevicesettingsdialog.h"
#include "soapygui/discreterangegui.h"
#include "soapygui/intervalrangegui.h"
#include "soapygui/stringrangegui.h"
#include "soapygui/dynamicitemsettinggui.h"
#include "soapygui/intervalslidergui.h"
#include "soapygui/complexfactorgui.h"
#include "soapygui/arginfogui.h"
#include "soapygui/dynamicargsettinggui.h"

#include "ui_soapysdrinputgui.h"
#include "soapysdrinputgui.h"

SoapySDRInputGui::SoapySDRInputGui(DeviceUISet *deviceUISet, QWidget* parent) :
    DeviceGUI(parent),
    ui(new Ui::SoapySDRInputGui),
    m_forceSettings(true),
    m_doApplySettings(true),
    m_sampleSource(0),
    m_sampleRate(0),
    m_deviceCenterFrequency(0),
    m_lastEngineState(DeviceAPI::StNotStarted),
    m_antennas(0),
    m_sampleRateGUI(0),
    m_bandwidthGUI(0),
    m_gainSliderGUI(0),
    m_autoGain(0),
    m_dcCorrectionGUI(0),
    m_iqCorrectionGUI(0),
    m_autoDCCorrection(0),
    m_autoIQCorrection(0)
{
    m_deviceUISet = deviceUISet;
    setAttribute(Qt::WA_DeleteOnClose, true);
    m_sampleSource = (SoapySDRInput*) m_deviceUISet->m_deviceAPI->getSampleSource();
    ui->setupUi(getContents());
    setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding);
    getContents()->setStyleSheet("#SoapySDRInputGui { background-color: rgb(64, 64, 64); }");
    m_helpURL = "plugins/samplesource/soapysdrinput/readme.md";

    ui->centerFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
    uint64_t f_min, f_max;
    m_sampleSource->getFrequencyRange(f_min, f_max);
    ui->centerFrequency->setValueRange(9, f_min/1000, f_max/1000);

    createCorrectionsControl();
    createAntennasControl(m_sampleSource->getAntennas());
    createRangesControl(&m_sampleRateGUI, m_sampleSource->getRateRanges(), "SR", "S/s");
    createRangesControl(&m_bandwidthGUI, m_sampleSource->getBandwidthRanges(), "BW", "Hz");
    createTunableElementsControl(m_sampleSource->getTunableElements());
    createGlobalGainControl();
    createIndividualGainsControl(m_sampleSource->getIndividualGainsRanges());
    createArgumentsControl(m_sampleSource->getDeviceArgInfoList(), true);
    createArgumentsControl(m_sampleSource->getStreamArgInfoList(), false);
    m_sampleSource->initGainSettings(m_settings);
    m_sampleSource->initTunableElementsSettings(m_settings);
    m_sampleSource->initStreamArgSettings(m_settings);
    m_sampleSource->initDeviceArgSettings(m_settings);

    if (m_sampleRateGUI) {
        connect(m_sampleRateGUI, SIGNAL(valueChanged(double)), this, SLOT(sampleRateChanged(double)));
    }
    if (m_bandwidthGUI) {
        connect(m_bandwidthGUI,  SIGNAL(valueChanged(double)), this, SLOT(bandwidthChanged(double)));
    }

    connect(&m_updateTimer, SIGNAL(timeout()), this, SLOT(updateHardware()));
    connect(&m_statusTimer, SIGNAL(timeout()), this, SLOT(updateStatus()));
    m_statusTimer.start(500);

    connect(this, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(openDeviceSettingsDialog(const QPoint &)));

    displaySettings();

    connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
    m_sampleSource->setMessageQueueToGUI(&m_inputMessageQueue);

    sendSettings();
    makeUIConnections();
}

SoapySDRInputGui::~SoapySDRInputGui()
{
    m_statusTimer.stop();
    m_updateTimer.stop();
    delete ui;
}

void SoapySDRInputGui::destroy()
{
    delete this;
}

void SoapySDRInputGui::createRangesControl(
        ItemSettingGUI **settingGUI,
        const SoapySDR::RangeList& rangeList,
        const QString& text,
        const QString& unit)
{
    if (rangeList.size() == 0) { // return early if the range list is empty
        return;
    }

    bool rangeDiscrete = true; // discretes values
    bool rangeInterval = true; // intervals

    for (const auto &it : rangeList)
    {
        if (it.minimum() != it.maximum()) {
            rangeDiscrete = false;
        } else {
            rangeInterval = false;
        }
    }

    if (rangeDiscrete)
    {
        DiscreteRangeGUI *rangeGUI = new DiscreteRangeGUI(this);
        rangeGUI->setLabel(text);
        rangeGUI->setUnits(QString("k%1").arg(unit));

        for (const auto &it : rangeList) {
            rangeGUI->addItem(QString("%1").arg(QString::number(it.minimum()/1000.0, 'f', 0)), it.minimum());
        }

        *settingGUI = rangeGUI;
        QVBoxLayout *layout = (QVBoxLayout *) ui->scrollAreaWidgetContents->layout();
        layout->addWidget(rangeGUI);
    }
    else if (rangeInterval)
    {
        IntervalRangeGUI *rangeGUI = new IntervalRangeGUI(ui->scrollAreaWidgetContents);
        rangeGUI->setLabel(text);
        rangeGUI->setUnits(unit);

        for (const auto &it : rangeList) {
            rangeGUI->addInterval(it.minimum(), it.maximum());
        }

        rangeGUI->reset();

        *settingGUI = rangeGUI;
        QVBoxLayout *layout = (QVBoxLayout *) ui->scrollAreaWidgetContents->layout();
        layout->addWidget(rangeGUI);
    }
}

void SoapySDRInputGui::createAntennasControl(const std::vector<std::string>& antennaList)
{
    if (antennaList.size() == 0) { // return early if the antenna list is empty
        return;
    }

    m_antennas = new StringRangeGUI(this);
    m_antennas->setLabel(QString("RF in"));
    m_antennas->setUnits(QString("Port"));

    for (const auto &it : antennaList) {
        m_antennas->addItem(QString(it.c_str()), it);
    }

    QVBoxLayout *layout = (QVBoxLayout *) ui->scrollAreaWidgetContents->layout();
    layout->addWidget(m_antennas);

    connect(m_antennas, SIGNAL(valueChanged()), this, SLOT(antennasChanged()));
}

void SoapySDRInputGui::createTunableElementsControl(const std::vector<DeviceSoapySDRParams::FrequencySetting>& tunableElementsList)
{
    if (tunableElementsList.size() <= 1) { // This list is created for other elements than the main one (RF) which is always at index 0
        return;
    }

    std::vector<DeviceSoapySDRParams::FrequencySetting>::const_iterator it = tunableElementsList.begin() + 1;

    for (int i = 0; it != tunableElementsList.end(); ++it, i++)
    {
        if (it->m_ranges.size() == 0) { // skip empty ranges lists
            continue;
        }

        ItemSettingGUI *rangeGUI;
        createRangesControl(
                &rangeGUI,
                it->m_ranges,
                QString("%1 freq").arg(it->m_name.c_str()),
                QString((it->m_name == "CORR") ? "ppm" : "Hz"));
        DynamicItemSettingGUI *gui = new DynamicItemSettingGUI(rangeGUI, QString(it->m_name.c_str()));
        m_tunableElementsGUIs.push_back(gui);
        connect(m_tunableElementsGUIs.back(), SIGNAL(valueChanged(QString, double)), this, SLOT(tunableElementChanged(QString, double)));
    }
}

void SoapySDRInputGui::createGlobalGainControl()
{
    m_gainSliderGUI = new IntervalSliderGUI(this);
    int min, max;
    m_sampleSource->getGlobalGainRange(min, max);
    m_gainSliderGUI->setInterval(min, max);
    m_gainSliderGUI->setLabel(QString("Global gain"));
    m_gainSliderGUI->setUnits(QString(""));

    QVBoxLayout *layout = (QVBoxLayout *) ui->scrollAreaWidgetContents->layout();

    QFrame *line = new QFrame(this);
    line->setFrameShape(QFrame::HLine);
    line->setFrameShadow(QFrame::Sunken);
    layout->addWidget(line);

    if (m_sampleSource->isAGCSupported())
    {
        m_autoGain = new QCheckBox(this);
        m_autoGain->setText(QString("AGC"));
        m_autoGain->setStyleSheet("QCheckBox::indicator::unchecked {background: rgb(79,79,79);} QCheckBox::indicator::checked {background: rgb(255, 157, 38);}");
        layout->addWidget(m_autoGain);

        connect(m_autoGain, SIGNAL(toggled(bool)), this, SLOT(autoGainChanged(bool)));
    }

    layout->addWidget(m_gainSliderGUI);

    connect(m_gainSliderGUI, SIGNAL(valueChanged(double)), this, SLOT(globalGainChanged(double)));
}

void SoapySDRInputGui::createIndividualGainsControl(const std::vector<DeviceSoapySDRParams::GainSetting>& individualGainsList)
{
    if (individualGainsList.size() == 0) { // Leave early if list of individual gains is empty
        return;
    }

    QVBoxLayout *layout = (QVBoxLayout *) ui->scrollAreaWidgetContents->layout();
    std::vector<DeviceSoapySDRParams::GainSetting>::const_iterator it = individualGainsList.begin();

    for (int i = 0; it != individualGainsList.end(); ++it, i++)
    {
        IntervalSliderGUI *gainGUI = new IntervalSliderGUI(this);
        gainGUI->setInterval(it->m_range.minimum(), it->m_range.maximum());
        gainGUI->setLabel(QString("%1 gain").arg(it->m_name.c_str()));
        gainGUI->setUnits(QString(""));
        DynamicItemSettingGUI *gui = new DynamicItemSettingGUI(gainGUI, QString(it->m_name.c_str()));
        layout->addWidget(gainGUI);
        m_individualGainsGUIs.push_back(gui);
        connect(m_individualGainsGUIs.back(), SIGNAL(valueChanged(QString, double)), this, SLOT(individualGainChanged(QString, double)));
    }
}

void SoapySDRInputGui::createCorrectionsControl()
{
    QVBoxLayout *layout = (QVBoxLayout *) ui->scrollAreaWidgetContents->layout();

    if (m_sampleSource->hasDCCorrectionValue()) // complex GUI
    {
        m_dcCorrectionGUI = new ComplexFactorGUI(this);
        m_dcCorrectionGUI->setLabel(QString("DC corr"));
        m_dcCorrectionGUI->setToolTip(QString("Hardware DC offset correction"));
        m_dcCorrectionGUI->setAutomaticEnable(m_sampleSource->hasDCAutoCorrection());
        layout->addWidget(m_dcCorrectionGUI);

        connect(m_dcCorrectionGUI, SIGNAL(moduleChanged(double)), this, SLOT(dcCorrectionModuleChanged(double)));
        connect(m_dcCorrectionGUI, SIGNAL(argumentChanged(double)), this, SLOT(dcCorrectionArgumentChanged(double)));

        if (m_sampleSource->hasDCAutoCorrection()) {
            connect(m_dcCorrectionGUI, SIGNAL(automaticChanged(bool)), this, SLOT(autoDCCorrectionChanged(bool)));
        }
    }
    else if (m_sampleSource->hasDCAutoCorrection()) // simple checkbox
    {
        m_autoDCCorrection = new QCheckBox(this);
        m_autoDCCorrection->setText(QString("Auto DC corr"));
        m_autoDCCorrection->setToolTip(QString("Automatic hardware DC offset correction"));
        m_autoDCCorrection->setStyleSheet("QCheckBox::indicator::unchecked {background: rgb(79,79,79);} QCheckBox::indicator::checked {background: rgb(255, 157, 38);}");
        layout->addWidget(m_autoDCCorrection);

        connect(m_autoDCCorrection, SIGNAL(toggled(bool)), this, SLOT(autoDCCorrectionChanged(bool)));
    }

    if (m_sampleSource->hasIQCorrectionValue()) // complex GUI
    {
        m_iqCorrectionGUI = new ComplexFactorGUI(this);
        m_iqCorrectionGUI->setLabel(QString("IQ corr"));
        m_iqCorrectionGUI->setToolTip(QString("Hardware IQ imbalance correction"));
        m_iqCorrectionGUI->setAutomaticEnable(m_sampleSource->hasIQAutoCorrection());
        layout->addWidget(m_iqCorrectionGUI);

        connect(m_iqCorrectionGUI, SIGNAL(moduleChanged(double)), this, SLOT(iqCorrectionModuleChanged(double)));
        connect(m_iqCorrectionGUI, SIGNAL(argumentChanged(double)), this, SLOT(iqCorrectionArgumentChanged(double)));

        if (m_sampleSource->hasIQAutoCorrection()) {
            connect(m_iqCorrectionGUI, SIGNAL(automaticChanged(bool)), this, SLOT(autoIQCorrectionChanged(bool)));
        }
    }
    else if (m_sampleSource->hasIQAutoCorrection()) // simple checkbox
    {
        m_autoIQCorrection = new QCheckBox(this);
        m_autoIQCorrection->setText(QString("Auto IQ corr"));
        m_autoIQCorrection->setToolTip(QString("Automatic hardware IQ imbalance correction"));
        m_autoIQCorrection->setStyleSheet("QCheckBox::indicator::unchecked {background: rgb(79,79,79);} QCheckBox::indicator::checked {background: rgb(255, 157, 38);}");
        layout->addWidget(m_autoIQCorrection);

        connect(m_autoIQCorrection, SIGNAL(toggled(bool)), this, SLOT(autoIQCorrectionChanged(bool)));
    }
}

void SoapySDRInputGui::createArgumentsControl(const SoapySDR::ArgInfoList& argInfoList, bool deviceArguments)
{
    if (argInfoList.size() == 0) { // return early if list is empty
        return;
    }

    QVBoxLayout *layout = (QVBoxLayout *) ui->scrollAreaWidgetContents->layout();

    QFrame *line = new QFrame(this);
    line->setFrameShape(QFrame::HLine);
    line->setFrameShadow(QFrame::Sunken);
    layout->addWidget(line);

    std::vector<SoapySDR::ArgInfo>::const_iterator it = argInfoList.begin();

    for (; it != argInfoList.end(); ++it)
    {
        ArgInfoGUI::ArgInfoValueType valueType;
        ArgInfoGUI *argGUI;

        if (it->type == SoapySDR::ArgInfo::BOOL) {
            valueType = ArgInfoGUI::ArgInfoValueBool;
        } else if (it->type == SoapySDR::ArgInfo::INT) {
            valueType = ArgInfoGUI::ArgInfoValueInt;
        } else if (it->type == SoapySDR::ArgInfo::FLOAT) {
            valueType = ArgInfoGUI::ArgInfoValueFloat;
        } else if (it->type == SoapySDR::ArgInfo::STRING) {
            valueType = ArgInfoGUI::ArgInfoValueString;
        } else {
            continue;
        }

        if (valueType == ArgInfoGUI::ArgInfoValueBool)
        {
            argGUI = new ArgInfoGUI(ArgInfoGUI::ArgInfoBinary, ArgInfoGUI::ArgInfoValueBool, this);
        }
        else if (it->options.size() == 0)
        {
            argGUI = new ArgInfoGUI(ArgInfoGUI::ArgInfoContinuous, valueType, this);
        }
        else
        {
            argGUI = new ArgInfoGUI(ArgInfoGUI::ArgInfoDiscrete, valueType, this);
            std::vector<std::string>::const_iterator optionIt = it->options.begin();
            std::vector<std::string>::const_iterator optionNameIt = it->optionNames.begin();

            for (int i = 0; optionIt != it->options.end(); ++optionIt, i++)
            {
                QString name(optionNameIt == it->optionNames.end() ? optionIt->c_str() : optionNameIt->c_str());

                if (optionNameIt != it->optionNames.end()) {
                    ++optionNameIt;
                }

                if (valueType == ArgInfoGUI::ArgInfoValueInt) {
                    argGUI->addIntValue(name, atoi(optionIt->c_str()));
                } else if (valueType == ArgInfoGUI::ArgInfoValueFloat) {
                    argGUI->addFloatValue(name, atof(optionIt->c_str()));
                } else if (valueType == ArgInfoGUI::ArgInfoValueString) {
                    argGUI->addStringValue(name, QString(optionIt->c_str()));
                }
            }
        }

        if ((it->range.minimum() != 0) || (it->range.maximum() != 0)) {
            argGUI->setRange(it->range.minimum(), it->range.maximum());
        }

        argGUI->setLabel(QString(it->name.size() == 0 ? it->key.c_str() : it->name.c_str()));
        argGUI->setUnits(QString(it->units.c_str()));

        if (it->description.size() != 0) {
            argGUI->setToolTip(QString(it->description.c_str()));
        }

        layout->addWidget(argGUI);

        DynamicArgSettingGUI *gui = new DynamicArgSettingGUI(argGUI, QString(it->key.c_str()));

        // This could be made more elegant but let's make it more simple
        if (deviceArguments)
        {
            m_deviceArgsGUIs.push_back(gui);
            connect(gui, SIGNAL(valueChanged(QString, QVariant)), this, SLOT(deviceArgChanged(QString, QVariant)));
        }
        else
        {
            m_streamArgsGUIs.push_back(gui);
            connect(gui, SIGNAL(valueChanged(QString, QVariant)), this, SLOT(streamArgChanged(QString, QVariant)));
        }
    }
}

void SoapySDRInputGui::resetToDefaults()
{
    m_settings.resetToDefaults();
    displaySettings();
    sendSettings();
}

QByteArray SoapySDRInputGui::serialize() const
{
    return m_settings.serialize();
}

bool SoapySDRInputGui::deserialize(const QByteArray& data)
{
    if (m_settings.deserialize(data))
    {
        displaySettings();
        m_forceSettings = true;
        sendSettings();
        return true;
    }
    else
    {
        resetToDefaults();
        return false;
    }
}

void SoapySDRInputGui::resizeEvent(QResizeEvent* size)
{
    resize(360, height());
    size->accept();
}

bool SoapySDRInputGui::handleMessage(const Message& message)
{
    if (SoapySDRInput::MsgConfigureSoapySDRInput::match(message))
    {
        const SoapySDRInput::MsgConfigureSoapySDRInput& cfg = (SoapySDRInput::MsgConfigureSoapySDRInput&) message;
        m_settings = cfg.getSettings();
        blockApplySettings(true);
        displaySettings();
        blockApplySettings(false);

        return true;
    }
    else if (SoapySDRInput::MsgReportGainChange::match(message))
    {
        const SoapySDRInput::MsgReportGainChange& report = (SoapySDRInput::MsgReportGainChange&) message;
        const SoapySDRInputSettings& gainSettings = report.getSettings();

        if (report.getGlobalGain()) {
            m_settings.m_globalGain = gainSettings.m_globalGain;
        }
        if (report.getIndividualGains()) {
            m_settings.m_individualGains = gainSettings.m_individualGains;
        }

        blockApplySettings(true);
        displaySettings();
        blockApplySettings(false);

        return true;
    }
    else if (DeviceSoapySDRShared::MsgReportDeviceArgsChange::match(message))
    {
        DeviceSoapySDRShared::MsgReportDeviceArgsChange& notif = (DeviceSoapySDRShared::MsgReportDeviceArgsChange&) message;
        m_settings.m_deviceArgSettings = notif.getDeviceArgSettings();
        displayDeviceArgsSettings();

        return true;
    }
    else if (SoapySDRInput::MsgStartStop::match(message))
    {
        SoapySDRInput::MsgStartStop& notif = (SoapySDRInput::MsgStartStop&) message;
        blockApplySettings(true);
        ui->startStop->setChecked(notif.getStartStop());
        blockApplySettings(false);

        return true;
    }
    else
    {
        return false;
    }
}

void SoapySDRInputGui::handleInputMessages()
{
    Message* message;

    while ((message = m_inputMessageQueue.pop()) != 0)
    {
        qDebug("SoapySDRInputGui::handleInputMessages: message: %s", message->getIdentifier());

        if (DSPSignalNotification::match(*message))
        {
            DSPSignalNotification* notif = (DSPSignalNotification*) message;
            m_sampleRate = notif->getSampleRate();
            m_deviceCenterFrequency = notif->getCenterFrequency();
            qDebug("SoapySDRInputGui::handleInputMessages: DSPSignalNotification: SampleRate:%d, CenterFrequency:%llu", notif->getSampleRate(), notif->getCenterFrequency());
            updateSampleRateAndFrequency();

            delete message;
        }
        else
        {
            if (handleMessage(*message))
            {
                delete message;
            }
        }
    }
}

void SoapySDRInputGui::antennasChanged()
{
    const std::string& antennaStr = m_antennas->getCurrentValue();
    m_settings.m_antenna = QString(antennaStr.c_str());

    sendSettings();
}

void SoapySDRInputGui::sampleRateChanged(double sampleRate)
{
    m_settings.m_devSampleRate = round(sampleRate);
    sendSettings();
}

void SoapySDRInputGui::bandwidthChanged(double bandwidth)
{
    m_settings.m_bandwidth = round(bandwidth);
    sendSettings();
}

void SoapySDRInputGui::tunableElementChanged(QString name, double value)
{
    m_settings.m_tunableElements[name] = value;
    sendSettings();
}

void SoapySDRInputGui::globalGainChanged(double gain)
{
    m_settings.m_globalGain = round(gain);
    sendSettings();
}

void SoapySDRInputGui::autoGainChanged(bool set)
{
    m_settings.m_autoGain = set;
    sendSettings();
}

void SoapySDRInputGui::individualGainChanged(QString name, double value)
{
    m_settings.m_individualGains[name] = value;
    sendSettings();
}

void SoapySDRInputGui::autoDCCorrectionChanged(bool set)
{
    m_settings.m_autoDCCorrection = set;
    sendSettings();
}

void SoapySDRInputGui::autoIQCorrectionChanged(bool set)
{
    m_settings.m_autoIQCorrection = set;
    sendSettings();
}

void SoapySDRInputGui::dcCorrectionModuleChanged(double value)
{
    std::complex<double> dcCorrection = std::polar<double>(value, arg(m_settings.m_dcCorrection));
    m_settings.m_dcCorrection = dcCorrection;
    sendSettings();
}

void SoapySDRInputGui::dcCorrectionArgumentChanged(double value)
{
    double angleInRadians = (value / 180.0) * M_PI;
    std::complex<double> dcCorrection = std::polar<double>(abs(m_settings.m_dcCorrection), angleInRadians);
    m_settings.m_dcCorrection = dcCorrection;
    sendSettings();
}

void SoapySDRInputGui::iqCorrectionModuleChanged(double value)
{
    std::complex<double> iqCorrection = std::polar<double>(value, arg(m_settings.m_iqCorrection));
    m_settings.m_iqCorrection = iqCorrection;
    sendSettings();
}

void SoapySDRInputGui::iqCorrectionArgumentChanged(double value)
{
    double angleInRadians = (value / 180.0) * M_PI;
    std::complex<double> iqCorrection = std::polar<double>(abs(m_settings.m_iqCorrection), angleInRadians);
    m_settings.m_iqCorrection = iqCorrection;
    sendSettings();
}

void SoapySDRInputGui::streamArgChanged(QString itemName, QVariant value)
{
    m_settings.m_streamArgSettings[itemName] = value;
    sendSettings();
}

void SoapySDRInputGui::deviceArgChanged(QString itemName, QVariant value)
{
    m_settings.m_deviceArgSettings[itemName] = value;
    sendSettings();
}

void SoapySDRInputGui::on_centerFrequency_changed(quint64 value)
{
    m_settings.m_centerFrequency = value * 1000;
    sendSettings();
}

void SoapySDRInputGui::on_dcOffset_toggled(bool checked)
{
    m_settings.m_softDCCorrection = checked;
    sendSettings();
}

void SoapySDRInputGui::on_iqImbalance_toggled(bool checked)
{
    m_settings.m_softIQCorrection = checked;
    sendSettings();
}

void SoapySDRInputGui::on_decim_currentIndexChanged(int index)
{
    if ((index <0) || (index > 6))
        return;
    m_settings.m_log2Decim = index;
    sendSettings();
}

void SoapySDRInputGui::on_fcPos_currentIndexChanged(int index)
{
    if (index == 0) {
        m_settings.m_fcPos = SoapySDRInputSettings::FC_POS_INFRA;
        sendSettings();
    } else if (index == 1) {
        m_settings.m_fcPos = SoapySDRInputSettings::FC_POS_SUPRA;
        sendSettings();
    } else if (index == 2) {
        m_settings.m_fcPos = SoapySDRInputSettings::FC_POS_CENTER;
        sendSettings();
    }
}

void SoapySDRInputGui::on_transverter_clicked()
{
    m_settings.m_transverterMode = ui->transverter->getDeltaFrequencyAcive();
    m_settings.m_transverterDeltaFrequency = ui->transverter->getDeltaFrequency();
    m_settings.m_iqOrder = ui->transverter->getIQOrder();
    qDebug("SoapySDRInputGui::on_transverter_clicked: %lld Hz %s", m_settings.m_transverterDeltaFrequency, m_settings.m_transverterMode ? "on" : "off");
    updateFrequencyLimits();
    setCenterFrequencySetting(ui->centerFrequency->getValueNew());
    sendSettings();
}

void SoapySDRInputGui::on_LOppm_valueChanged(int value)
{
    ui->LOppmText->setText(QString("%1").arg(QString::number(value/10.0, 'f', 1)));
    m_settings.m_LOppmTenths = value;
    sendSettings();
}

void SoapySDRInputGui::on_startStop_toggled(bool checked)
{
    if (m_doApplySettings)
    {
        SoapySDRInput::MsgStartStop *message = SoapySDRInput::MsgStartStop::create(checked);
        m_sampleSource->getInputMessageQueue()->push(message);
    }
}

void SoapySDRInputGui::displaySettings()
{
    blockApplySettings(true);

    ui->transverter->setDeltaFrequency(m_settings.m_transverterDeltaFrequency);
    ui->transverter->setDeltaFrequencyActive(m_settings.m_transverterMode);
    ui->transverter->setIQOrder(m_settings.m_iqOrder);

    updateFrequencyLimits();

    ui->centerFrequency->setValue(m_settings.m_centerFrequency / 1000);

    if (m_antennas) {
        m_antennas->setValue(m_settings.m_antenna.toStdString());
    }
    if (m_sampleRateGUI)
    {
        m_sampleRateGUI->setValue(m_settings.m_devSampleRate);
        m_settings.m_devSampleRate = m_sampleRateGUI->getCurrentValue();
    }
    if (m_bandwidthGUI)
    {
        m_bandwidthGUI->setValue(m_settings.m_bandwidth);
        m_settings.m_bandwidth = m_bandwidthGUI->getCurrentValue();
    }
    if (m_gainSliderGUI)
    {
        m_gainSliderGUI->setValue(m_settings.m_globalGain);
        m_settings.m_globalGain = m_gainSliderGUI->getCurrentValue();
    }
    if (m_autoGain) {
        m_autoGain->setChecked(m_settings.m_autoGain);
    }

    ui->dcOffset->setChecked(m_settings.m_softDCCorrection);
    ui->iqImbalance->setChecked(m_settings.m_softIQCorrection);

    ui->decim->setCurrentIndex(m_settings.m_log2Decim);
    ui->fcPos->setCurrentIndex((int) m_settings.m_fcPos);

    ui->LOppm->setValue(m_settings.m_LOppmTenths);
    ui->LOppmText->setText(QString("%1").arg(QString::number(m_settings.m_LOppmTenths/10.0, 'f', 1)));

    displayTunableElementsControlSettings();
    displayIndividualGainsControlSettings();
    displayCorrectionsSettings();
    displayStreamArgsSettings();
    displayDeviceArgsSettings();

    blockApplySettings(false);
}

void SoapySDRInputGui::displayTunableElementsControlSettings()
{
    for (const auto &it : m_tunableElementsGUIs)
    {
        QMap<QString, double>::const_iterator elIt = m_settings.m_tunableElements.find(it->getName());

        if (elIt != m_settings.m_tunableElements.end()) {
            it->setValue(*elIt);
        }
    }
}

void SoapySDRInputGui::displayIndividualGainsControlSettings()
{
    for (const auto &it : m_individualGainsGUIs)
    {
        QMap<QString, double>::iterator elIt = m_settings.m_individualGains.find(it->getName());

        if (elIt != m_settings.m_individualGains.end())
        {
            it->setValue(*elIt);
            *elIt = it->getValue();
        }
    }
}

void SoapySDRInputGui::displayCorrectionsSettings()
{
    if (m_dcCorrectionGUI)
    {
        m_dcCorrectionGUI->setAutomatic(m_settings.m_autoDCCorrection);
        m_dcCorrectionGUI->setModule(abs(m_settings.m_dcCorrection));
        m_dcCorrectionGUI->setArgument(arg(m_settings.m_dcCorrection)*(180.0/M_PI));
    }

    if (m_iqCorrectionGUI)
    {
        m_iqCorrectionGUI->setAutomatic(m_settings.m_autoIQCorrection);
        m_iqCorrectionGUI->setModule(abs(m_settings.m_iqCorrection));
        m_iqCorrectionGUI->setArgument(arg(m_settings.m_iqCorrection)*(180.0/M_PI));
    }

    if (m_autoDCCorrection) {
        m_autoDCCorrection->setChecked(m_settings.m_autoDCCorrection);
    }

    if (m_autoIQCorrection) {
        m_autoIQCorrection->setChecked(m_settings.m_autoIQCorrection);
    }
}

void SoapySDRInputGui::displayStreamArgsSettings()
{
    for (const auto &it : m_streamArgsGUIs)
    {
        QMap<QString, QVariant>::iterator elIt = m_settings.m_streamArgSettings.find(it->getName());

        if (elIt != m_settings.m_streamArgSettings.end())
        {
            it->setValue(elIt.value());
            *elIt = it->getValue();
        }
    }
}

void SoapySDRInputGui::displayDeviceArgsSettings()
{
    for (const auto &it : m_deviceArgsGUIs)
    {
        QMap<QString, QVariant>::iterator elIt = m_settings.m_deviceArgSettings.find(it->getName());

        if (elIt != m_settings.m_deviceArgSettings.end())
        {
            it->setValue(elIt.value());
            *elIt = it->getValue();
        }
    }
}

void SoapySDRInputGui::sendSettings()
{
    if (!m_updateTimer.isActive()) {
        m_updateTimer.start(100);
    }
}

void SoapySDRInputGui::updateSampleRateAndFrequency()
{
    m_deviceUISet->getSpectrum()->setSampleRate(m_sampleRate);
    m_deviceUISet->getSpectrum()->setCenterFrequency(m_deviceCenterFrequency);
    ui->deviceRateText->setText(tr("%1k").arg(QString::number(m_sampleRate / 1000.0f, 'g', 5)));
}

void SoapySDRInputGui::updateFrequencyLimits()
{
    // values in kHz
    uint64_t f_min, f_max;
    qint64 deltaFrequency = m_settings.m_transverterMode ? m_settings.m_transverterDeltaFrequency/1000 : 0;
    m_sampleSource->getFrequencyRange(f_min, f_max);
    qint64 minLimit = f_min/1000 + deltaFrequency;
    qint64 maxLimit = f_max/1000 + deltaFrequency;

    minLimit = minLimit < 0 ? 0 : minLimit > 999999999 ? 999999999 : minLimit;
    maxLimit = maxLimit < 0 ? 0 : maxLimit > 999999999 ? 999999999 : maxLimit;

    qDebug("SoapySDRInputGui::updateFrequencyLimits: delta: %lld min: %lld max: %lld", deltaFrequency, minLimit, maxLimit);

    ui->centerFrequency->setValueRange(9, minLimit, maxLimit);
}

void SoapySDRInputGui::setCenterFrequencySetting(uint64_t kHzValue)
{
    int64_t centerFrequency = kHzValue*1000;

    m_settings.m_centerFrequency = centerFrequency < 0 ? 0 : (uint64_t) centerFrequency;
    ui->centerFrequency->setToolTip(QString("Main center frequency in kHz (LO: %1 kHz)").arg(centerFrequency/1000));
}

void SoapySDRInputGui::blockApplySettings(bool block)
{
    m_doApplySettings = !block;
}

void SoapySDRInputGui::updateHardware()
{
    if (m_doApplySettings)
    {
        qDebug() << "SoapySDRInputGui::updateHardware";
        SoapySDRInput::MsgConfigureSoapySDRInput* message = SoapySDRInput::MsgConfigureSoapySDRInput::create(m_settings, m_forceSettings);
        m_sampleSource->getInputMessageQueue()->push(message);
        m_forceSettings = false;
        m_updateTimer.stop();
    }
}

void SoapySDRInputGui::updateStatus()
{
    int state = m_deviceUISet->m_deviceAPI->state();

    if(m_lastEngineState != state)
    {
        switch(state)
        {
            case DeviceAPI::StNotStarted:
                ui->startStop->setStyleSheet("QToolButton { background:rgb(79,79,79); }");
                break;
            case DeviceAPI::StIdle:
                ui->startStop->setStyleSheet("QToolButton { background-color : blue; }");
                break;
            case DeviceAPI::StRunning:
                ui->startStop->setStyleSheet("QToolButton { background-color : green; }");
                break;
            case DeviceAPI::StError:
                ui->startStop->setStyleSheet("QToolButton { background-color : red; }");
                QMessageBox::information(this, tr("Message"), m_deviceUISet->m_deviceAPI->errorMessage());
                break;
            default:
                break;
        }

        m_lastEngineState = state;
    }
}

void SoapySDRInputGui::openDeviceSettingsDialog(const QPoint& p)
{
    if (m_contextMenuType == ContextMenuDeviceSettings)
    {
        BasicDeviceSettingsDialog dialog(this);
        dialog.setUseReverseAPI(m_settings.m_useReverseAPI);
        dialog.setReverseAPIAddress(m_settings.m_reverseAPIAddress);
        dialog.setReverseAPIPort(m_settings.m_reverseAPIPort);
        dialog.setReverseAPIDeviceIndex(m_settings.m_reverseAPIDeviceIndex);

        dialog.move(p);
        dialog.exec();

        m_settings.m_useReverseAPI = dialog.useReverseAPI();
        m_settings.m_reverseAPIAddress = dialog.getReverseAPIAddress();
        m_settings.m_reverseAPIPort = dialog.getReverseAPIPort();
        m_settings.m_reverseAPIDeviceIndex = dialog.getReverseAPIDeviceIndex();

        sendSettings();
    }

    resetContextMenuType();
}

void SoapySDRInputGui::makeUIConnections()
{
    QObject::connect(ui->centerFrequency, &ValueDial::changed, this, &SoapySDRInputGui::on_centerFrequency_changed);
    QObject::connect(ui->LOppm, &QSlider::valueChanged, this, &SoapySDRInputGui::on_LOppm_valueChanged);
    QObject::connect(ui->dcOffset, &ButtonSwitch::toggled, this, &SoapySDRInputGui::on_dcOffset_toggled);
    QObject::connect(ui->iqImbalance, &ButtonSwitch::toggled, this, &SoapySDRInputGui::on_iqImbalance_toggled);
    QObject::connect(ui->decim, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &SoapySDRInputGui::on_decim_currentIndexChanged);
    QObject::connect(ui->fcPos, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &SoapySDRInputGui::on_fcPos_currentIndexChanged);
    QObject::connect(ui->transverter, &TransverterButton::clicked, this, &SoapySDRInputGui::on_transverter_clicked);
    QObject::connect(ui->startStop, &ButtonSwitch::toggled, this, &SoapySDRInputGui::on_startStop_toggled);
}