///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 Edouard Griffiths, F4EXB                                   //
// Copyright (C) 2020 Jon Beniston, M7RCE                                        //
//                                                                               //
// 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/>.          //
///////////////////////////////////////////////////////////////////////////////////

#ifndef PLUGINS_SAMPLESOURCE_USRPINPUT_USRPINPUT_H_
#define PLUGINS_SAMPLESOURCE_USRPINPUT_USRPINPUT_H_

#include <stdint.h>

#include <QString>
#include <QByteArray>
#include <QNetworkRequest>

#include <uhd/usrp/multi_usrp.hpp>

#include "dsp/devicesamplesource.h"
#include "usrp/deviceusrpshared.h"
#include "usrpinputsettings.h"

class DeviceAPI;
class USRPInputThread;
class QNetworkAccessManager;
class QNetworkReply;

class USRPInput : public DeviceSampleSource
{
    Q_OBJECT
public:
    class MsgConfigureUSRP : public Message {
        MESSAGE_CLASS_DECLARATION

    public:
        const USRPInputSettings& getSettings() const { return m_settings; }
        bool getForce() const { return m_force; }

        static MsgConfigureUSRP* create(const USRPInputSettings& settings, bool force)
        {
            return new MsgConfigureUSRP(settings, force);
        }

    private:
        USRPInputSettings m_settings;
        bool m_force;

        MsgConfigureUSRP(const USRPInputSettings& settings, bool force) :
            Message(),
            m_settings(settings),
            m_force(force)
        { }
    };

    class MsgGetStreamInfo : public Message {
        MESSAGE_CLASS_DECLARATION

    public:
        static MsgGetStreamInfo* create()
        {
            return new MsgGetStreamInfo();
        }

    private:
        MsgGetStreamInfo() :
            Message()
        { }
    };

    class MsgGetDeviceInfo : public Message {
        MESSAGE_CLASS_DECLARATION

    public:
        static MsgGetDeviceInfo* create()
        {
            return new MsgGetDeviceInfo();
        }

    private:
        MsgGetDeviceInfo() :
            Message()
        { }
    };

    class MsgReportStreamInfo : public Message {
        MESSAGE_CLASS_DECLARATION

    public:
        bool     getSuccess() const { return m_success; }
        bool     getActive() const { return m_active; }
        uint32_t getOverruns() const { return m_overruns; }
        uint32_t getTimeouts() const { return m_timeouts; }

        static MsgReportStreamInfo* create(
                bool     success,
                bool     active,
                uint32_t overruns,
                uint32_t timeouts
                )
        {
            return new MsgReportStreamInfo(
                    success,
                    active,
                    overruns,
                    timeouts
                    );
        }

    private:
        bool     m_success;
        bool     m_active;
        uint32_t m_overruns; //!< FIFO overrun count
        uint32_t m_timeouts; //!< Number of dropped packets by HW

        MsgReportStreamInfo(
                bool     success,
                bool     active,
                uint32_t overruns,
                uint32_t timeouts
                ) :
            Message(),
            m_success(success),
            m_active(active),
            m_overruns(overruns),
            m_timeouts(timeouts)
        { }
    };

    class MsgStartStop : public Message {
        MESSAGE_CLASS_DECLARATION

    public:
        bool getStartStop() const { return m_startStop; }

        static MsgStartStop* create(bool startStop) {
            return new MsgStartStop(startStop);
        }

    protected:
        bool m_startStop;

        MsgStartStop(bool startStop) :
            Message(),
            m_startStop(startStop)
        { }
    };

    USRPInput(DeviceAPI *deviceAPI);
    virtual ~USRPInput();
    virtual void destroy();

    virtual void init();
    virtual bool start();
    virtual void stop();

    virtual QByteArray serialize() const;
    virtual bool deserialize(const QByteArray& data);

    virtual void setMessageQueueToGUI(MessageQueue *queue) { m_guiMessageQueue = queue; }
    virtual const QString& getDeviceDescription() const;
    virtual int getSampleRate() const;
    virtual void setSampleRate(int sampleRate) { (void) sampleRate; }
    virtual quint64 getCenterFrequency() const;
    virtual void setCenterFrequency(qint64 centerFrequency);

    virtual bool handleMessage(const Message& message);

    virtual int webapiSettingsGet(
                SWGSDRangel::SWGDeviceSettings& response,
                QString& errorMessage);

    virtual int webapiSettingsPutPatch(
                bool force,
                const QStringList& deviceSettingsKeys,
                SWGSDRangel::SWGDeviceSettings& response, // query + response
                QString& errorMessage);

    virtual int webapiReportGet(
            SWGSDRangel::SWGDeviceReport& response,
            QString& errorMessage);

    virtual int webapiRunGet(
            SWGSDRangel::SWGDeviceState& response,
            QString& errorMessage);

    virtual int webapiRun(
            bool run,
            SWGSDRangel::SWGDeviceState& response,
            QString& errorMessage);

    static void webapiFormatDeviceSettings(
            SWGSDRangel::SWGDeviceSettings& response,
            const USRPInputSettings& settings);

    static void webapiUpdateDeviceSettings(
            USRPInputSettings& settings,
            const QStringList& deviceSettingsKeys,
            SWGSDRangel::SWGDeviceSettings& response);

    std::size_t getChannelIndex();
    void getLORange(float& minF, float& maxF) const;
    void getSRRange(float& minF, float& maxF) const;
    void getLPRange(float& minF, float& maxF) const;
    void getGainRange(float& minF, float& maxF) const;
    QStringList getRxAntennas() const;
    QStringList getRxGainNames() const;
    QStringList getClockSources() const;

private:
    DeviceAPI *m_deviceAPI;
    QMutex m_mutex;
    USRPInputSettings m_settings;
    USRPInputThread* m_usrpInputThread;
    QString m_deviceDescription;
    bool m_running;
    DeviceUSRPShared m_deviceShared;
    bool m_channelAcquired;
    uhd::rx_streamer::sptr m_streamId;
    QNetworkAccessManager *m_networkManager;
    QNetworkRequest m_networkRequest;

    bool openDevice();
    void closeDevice();
    bool acquireChannel();
    void releaseChannel();
    void suspendRxBuddies();
    void resumeRxBuddies();
    void suspendTxBuddies();
    void resumeTxBuddies();
    bool applySettings(const USRPInputSettings& settings, bool force = false);
    void webapiFormatDeviceReport(SWGSDRangel::SWGDeviceReport& response);
    void webapiReverseSendSettings(QList<QString>& deviceSettingsKeys, const USRPInputSettings& settings, bool force);
    void webapiReverseSendStartStop(bool start);

private slots:
    void networkManagerFinished(QNetworkReply *reply);
};

#endif /* PLUGINS_SAMPLESOURCE_USRPINPUT_USRPINPUT_H_ */
