#include "nfmdemodgui.h"

#include <device/devicesourceapi.h>
#include "device/deviceuiset.h"
#include <QDockWidget>
#include <QMainWindow>
#include <QDebug>

#include "ui_nfmdemodgui.h"
#include "dsp/nullsink.h"
#include "plugin/pluginapi.h"
#include "util/simpleserializer.h"
#include "util/db.h"
#include "gui/basicchannelsettingsdialog.h"
#include "dsp/dspengine.h"
#include "mainwindow.h"
#include "nfmdemod.h"

NFMDemodGUI* NFMDemodGUI::create(PluginAPI* pluginAPI, DeviceUISet *deviceUISet, BasebandSampleSink *rxChannel)
{
	NFMDemodGUI* gui = new NFMDemodGUI(pluginAPI, deviceUISet, rxChannel);
	return gui;
}

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

void NFMDemodGUI::setName(const QString& name)
{
	setObjectName(name);
}

QString NFMDemodGUI::getName() const
{
	return objectName();
}

qint64 NFMDemodGUI::getCenterFrequency() const
{
	return m_channelMarker.getCenterFrequency();
}

void NFMDemodGUI::setCenterFrequency(qint64 centerFrequency)
{
	m_channelMarker.setCenterFrequency(centerFrequency);
	applySettings();
}

void NFMDemodGUI::resetToDefaults()
{
    m_settings.resetToDefaults();
    displaySettings();
    applySettings();
}

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

bool NFMDemodGUI::deserialize(const QByteArray& data)
{
    if(m_settings.deserialize(data)) {
        displaySettings();
        applySettings(true);
        return true;
    } else {
        resetToDefaults();
        return false;
    }
}

bool NFMDemodGUI::handleMessage(const Message& message)
{
    if (NFMDemod::MsgReportCTCSSFreq::match(message))
    {
        qDebug("NFMDemodGUI::handleMessage: NFMDemod::MsgReportCTCSSFreq");
        NFMDemod::MsgReportCTCSSFreq& report = (NFMDemod::MsgReportCTCSSFreq&) message;
        setCtcssFreq(report.getFrequency());
        //qDebug("NFMDemodGUI::handleMessage: MsgReportCTCSSFreq: %f", report.getFrequency());
        return true;
    }
    else if (NFMDemod::MsgConfigureNFMDemod::match(message))
    {
        qDebug("NFMDemodGUI::handleMessage: NFMDemod::MsgConfigureNFMDemod");
        const NFMDemod::MsgConfigureNFMDemod& cfg = (NFMDemod::MsgConfigureNFMDemod&) message;
        m_settings = cfg.getSettings();
        blockApplySettings(true);
        displaySettings();
        blockApplySettings(false);
        return true;
    }

    return false;
}

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

    while ((message = getInputMessageQueue()->pop()) != 0)
    {
        if (handleMessage(*message))
        {
            delete message;
        }
    }
}

void NFMDemodGUI::channelMarkerChangedByCursor()
{
    ui->deltaFrequency->setValue(m_channelMarker.getCenterFrequency());
    m_settings.m_inputFrequencyOffset = m_channelMarker.getCenterFrequency();
    applySettings();
}

void NFMDemodGUI::channelMarkerHighlightedByCursor()
{
    setHighlighted(m_channelMarker.getHighlighted());
}

void NFMDemodGUI::on_deltaFrequency_changed(qint64 value)
{
    m_channelMarker.setCenterFrequency(value);
    m_settings.m_inputFrequencyOffset = m_channelMarker.getCenterFrequency();
    applySettings();
}

void NFMDemodGUI::on_rfBW_currentIndexChanged(int index)
{
	qDebug() << "NFMDemodGUI::on_rfBW_currentIndexChanged" << index;
	//ui->rfBWText->setText(QString("%1 k").arg(m_rfBW[value] / 1000.0));
	m_channelMarker.setBandwidth(NFMDemodSettings::getRFBW(index));
	m_settings.m_rfBandwidth = NFMDemodSettings::getRFBW(index);
	m_settings.m_fmDeviation = NFMDemodSettings::getFMDev(index);
	applySettings();
}

void NFMDemodGUI::on_afBW_valueChanged(int value)
{
	ui->afBWText->setText(QString("%1 k").arg(value));
	m_settings.m_afBandwidth = value * 1000.0;
	applySettings();
}

void NFMDemodGUI::on_volume_valueChanged(int value)
{
	ui->volumeText->setText(QString("%1").arg(value / 10.0, 0, 'f', 1));
	m_settings.m_volume = value / 10.0;
	applySettings();
}

void NFMDemodGUI::on_squelchGate_valueChanged(int value)
{
    ui->squelchGateText->setText(QString("%1").arg(value * 10.0f, 0, 'f', 0));
    m_settings.m_squelchGate = value;
	applySettings();
}

void NFMDemodGUI::on_deltaSquelch_toggled(bool checked)
{
    if (checked)
    {
        ui->squelchText->setText(QString("%1").arg((-ui->squelch->value()) / 10.0, 0, 'f', 1));
        ui->squelchText->setToolTip(tr("Squelch AF balance threshold (%)"));
        ui->squelch->setToolTip(tr("Squelch AF balance threshold (%)"));
    }
    else
    {
        ui->squelchText->setText(QString("%1").arg(ui->squelch->value() / 10.0, 0, 'f', 1));
        ui->squelchText->setToolTip(tr("Squelch power threshold (dB)"));
        ui->squelch->setToolTip(tr("Squelch AF balance threshold (%)"));
    }
    m_settings.m_deltaSquelch = checked;
    applySettings();
}

void NFMDemodGUI::on_squelch_valueChanged(int value)
{
    if (ui->deltaSquelch->isChecked())
    {
        ui->squelchText->setText(QString("%1").arg(-value / 10.0, 0, 'f', 1));
        ui->squelchText->setToolTip(tr("Squelch deviation threshold (%)"));
    }
    else
    {
        ui->squelchText->setText(QString("%1").arg(value / 10.0, 0, 'f', 1));
        ui->squelchText->setToolTip(tr("Squelch power threshold (dB)"));
    }
    m_settings.m_squelch = value * 1.0;
	applySettings();
}

void NFMDemodGUI::on_ctcssOn_toggled(bool checked)
{
	m_settings.m_ctcssOn = checked;
	applySettings();
}

void NFMDemodGUI::on_audioMute_toggled(bool checked)
{
	m_settings.m_audioMute = checked;
	applySettings();
}

void NFMDemodGUI::on_copyAudioToUDP_toggled(bool checked)
{
    m_settings.m_copyAudioToUDP = checked;
    applySettings();
}

void NFMDemodGUI::on_ctcss_currentIndexChanged(int index)
{
	m_settings.m_ctcssIndex = index;
	applySettings();
}

void NFMDemodGUI::onWidgetRolled(QWidget* widget __attribute__((unused)), bool rollDown __attribute__((unused)))
{
	/*
	if((widget == ui->spectrumContainer) && (m_nfmDemod != NULL))
		m_nfmDemod->setSpectrum(m_threadedSampleSink->getMessageQueue(), rollDown);
	*/
}

void NFMDemodGUI::onMenuDialogCalled(const QPoint &p)
{
    BasicChannelSettingsDialog dialog(&m_channelMarker, this);
    dialog.move(p);
    dialog.exec();

    m_settings.m_inputFrequencyOffset = m_channelMarker.getCenterFrequency();
    m_settings.m_udpAddress = m_channelMarker.getUDPAddress(),
    m_settings.m_udpPort =  m_channelMarker.getUDPSendPort(),
    m_settings.m_rgbColor = m_channelMarker.getColor().rgb();
    m_settings.m_title = m_channelMarker.getTitle();

    setWindowTitle(m_settings.m_title);
    setTitleColor(m_settings.m_rgbColor);
    displayUDPAddress();

    applySettings();
}

NFMDemodGUI::NFMDemodGUI(PluginAPI* pluginAPI, DeviceUISet *deviceUISet, BasebandSampleSink *rxChannel, QWidget* parent) :
	RollupWidget(parent),
	ui(new Ui::NFMDemodGUI),
	m_pluginAPI(pluginAPI),
	m_deviceUISet(deviceUISet),
	m_channelMarker(this),
	m_basicSettingsShown(false),
	m_doApplySettings(true),
	m_squelchOpen(false),
	m_tickCount(0)
{
	ui->setupUi(this);
	setAttribute(Qt::WA_DeleteOnClose, true);

	connect(this, SIGNAL(widgetRolled(QWidget*,bool)), this, SLOT(onWidgetRolled(QWidget*,bool)));
    connect(this, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(onMenuDialogCalled(const QPoint &)));

	m_nfmDemod = reinterpret_cast<NFMDemod*>(rxChannel); //new NFMDemod(m_deviceUISet->m_deviceSourceAPI);
	m_nfmDemod->setMessageQueueToGUI(getInputMessageQueue());

	connect(&MainWindow::getInstance()->getMasterTimer(), SIGNAL(timeout()), this, SLOT(tick()));

    blockApplySettings(true);

    ui->rfBW->clear();

    for (int i = 0; i < NFMDemodSettings::m_nbRfBW; i++) {
        ui->rfBW->addItem(QString("%1").arg(NFMDemodSettings::getRFBW(i) / 1000.0, 0, 'f', 2));
    }

    int ctcss_nbTones;
    const Real *ctcss_tones = m_nfmDemod->getCtcssToneSet(ctcss_nbTones);

    ui->ctcss->addItem("--");

    for (int i=0; i<ctcss_nbTones; i++)
    {
        ui->ctcss->addItem(QString("%1").arg(ctcss_tones[i]));
    }

    blockApplySettings(false);

	ui->audioMute->setStyleSheet("QToolButton { background:rgb(79,79,79); }"); // squelch closed

	ui->deltaFrequencyLabel->setText(QString("%1f").arg(QChar(0x94, 0x03)));
	ui->deltaFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
	ui->deltaFrequency->setValueRange(false, 7, -9999999, 9999999);
    ui->channelPowerMeter->setColorTheme(LevelMeterSignalDB::ColorGreenAndBlue);

    m_channelMarker.blockSignals(true);
    m_channelMarker.setColor(Qt::red);
    m_channelMarker.setBandwidth(5000);
    m_channelMarker.setCenterFrequency(0);
    m_channelMarker.setTitle("NFM Demodulator");
    m_channelMarker.setUDPAddress("127.0.0.1");
    m_channelMarker.setUDPSendPort(9999);
    m_channelMarker.blockSignals(false);
    m_channelMarker.setVisible(true); // activate signal on the last setting only

    m_settings.setChannelMarker(&m_channelMarker);

    m_deviceUISet->registerRxChannelInstance(NFMDemod::m_channelIdURI, this);
	m_deviceUISet->addChannelMarker(&m_channelMarker);
	m_deviceUISet->addRollupWidget(this);

	connect(&m_channelMarker, SIGNAL(changedByCursor()), this, SLOT(channelMarkerChangedByCursor()));
    connect(&m_channelMarker, SIGNAL(highlightedByCursor()), this, SLOT(channelMarkerHighlightedByCursor()));

	QChar delta = QChar(0x94, 0x03);
	ui->deltaSquelch->setText(delta);

	connect(getInputMessageQueue(), SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));

	displaySettings();
	applySettings(true);
}

NFMDemodGUI::~NFMDemodGUI()
{
    m_deviceUISet->removeRxChannelInstance(this);
	delete m_nfmDemod; // TODO: check this: when the GUI closes it has to delete the demodulator
	delete ui;
}

void NFMDemodGUI::applySettings(bool force)
{
	if (m_doApplySettings)
	{
		qDebug() << "NFMDemodGUI::applySettings";

        NFMDemod::MsgConfigureChannelizer* channelConfigMsg = NFMDemod::MsgConfigureChannelizer::create(
                48000, m_channelMarker.getCenterFrequency());
        m_nfmDemod->getInputMessageQueue()->push(channelConfigMsg);

        NFMDemod::MsgConfigureNFMDemod* message = NFMDemod::MsgConfigureNFMDemod::create( m_settings, force);
        m_nfmDemod->getInputMessageQueue()->push(message);
	}
}

void NFMDemodGUI::displaySettings()
{
    m_channelMarker.blockSignals(true);
    m_channelMarker.setCenterFrequency(m_settings.m_inputFrequencyOffset);
    m_channelMarker.setBandwidth(m_settings.m_rfBandwidth);
    m_channelMarker.setTitle(m_settings.m_title);
    m_channelMarker.blockSignals(false);
    m_channelMarker.setColor(m_settings.m_rgbColor);

    setTitleColor(m_settings.m_rgbColor);
    setWindowTitle(m_channelMarker.getTitle());
    displayUDPAddress();

    blockApplySettings(true);

    ui->deltaFrequency->setValue(m_channelMarker.getCenterFrequency());

    ui->rfBW->setCurrentIndex(NFMDemodSettings::getRFBWIndex(m_settings.m_rfBandwidth));

    ui->afBWText->setText(QString("%1 k").arg(m_settings.m_afBandwidth / 1000.0));
    ui->afBW->setValue(m_settings.m_afBandwidth / 1000.0);

    ui->volumeText->setText(QString("%1").arg(m_settings.m_volume, 0, 'f', 1));
    ui->volume->setValue(m_settings.m_volume * 10.0);

    ui->squelchGateText->setText(QString("%1").arg(m_settings.m_squelchGate * 10.0f, 0, 'f', 0));
    ui->squelchGate->setValue(m_settings.m_squelchGate);

    ui->deltaSquelch->setChecked(m_settings.m_deltaSquelch);
    ui->squelch->setValue(m_settings.m_squelch * 1.0);

    if (m_settings.m_deltaSquelch)
    {
        ui->squelchText->setText(QString("%1").arg((-m_settings.m_squelch) / 10.0, 0, 'f', 1));
        ui->squelchText->setToolTip(tr("Squelch AF balance threshold (%)"));
        ui->squelch->setToolTip(tr("Squelch AF balance threshold (%)"));
    }
    else
    {
        ui->squelchText->setText(QString("%1").arg(m_settings.m_squelch / 10.0, 0, 'f', 1));
        ui->squelchText->setToolTip(tr("Squelch power threshold (dB)"));
        ui->squelch->setToolTip(tr("Squelch AF balance threshold (%)"));
    }

    ui->ctcssOn->setChecked(m_settings.m_ctcssOn);
    ui->audioMute->setChecked(m_settings.m_audioMute);
    ui->copyAudioToUDP->setChecked(m_settings.m_copyAudioToUDP);

    ui->ctcss->setCurrentIndex(m_settings.m_ctcssIndex);

    blockApplySettings(false);
}

void NFMDemodGUI::displayUDPAddress()
{
    ui->copyAudioToUDP->setToolTip(QString("Copy audio output to UDP %1:%2").arg(m_settings.m_udpAddress).arg(m_settings.m_udpPort));
}

void NFMDemodGUI::leaveEvent(QEvent*)
{
	m_channelMarker.setHighlighted(false);
}

void NFMDemodGUI::enterEvent(QEvent*)
{
	m_channelMarker.setHighlighted(true);
}

void NFMDemodGUI::setCtcssFreq(Real ctcssFreq)
{
	if (ctcssFreq == 0)
	{
		ui->ctcssText->setText("--");
	}
	else
	{
		ui->ctcssText->setText(QString("%1").arg(ctcssFreq));
	}
}

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

void NFMDemodGUI::tick()
{
    double magsqAvg, magsqPeak;
    int nbMagsqSamples;
    m_nfmDemod->getMagSqLevels(magsqAvg, magsqPeak, nbMagsqSamples);
    double powDbAvg = CalcDb::dbPower(magsqAvg);
    double powDbPeak = CalcDb::dbPower(magsqPeak);

    ui->channelPowerMeter->levelChanged(
            (100.0f + powDbAvg) / 100.0f,
            (100.0f + powDbPeak) / 100.0f,
            nbMagsqSamples);

    if (m_tickCount % 4 == 0) {
        ui->channelPower->setText(tr("%1 dB").arg(powDbAvg, 0, 'f', 1));
    }

    bool squelchOpen = m_nfmDemod->getSquelchOpen();

	if (squelchOpen != m_squelchOpen)
	{
		if (squelchOpen) {
			ui->audioMute->setStyleSheet("QToolButton { background-color : green; }");
		} else {
			ui->audioMute->setStyleSheet("QToolButton { background:rgb(79,79,79); }");
		}

        m_squelchOpen = squelchOpen;
	}

	m_tickCount++;
}