/*!
 *
 * Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
 * copyright
 *          THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM,
 *          IN PART OR IN WHOLE,
 *          WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
 *
 * file    MessageGlobals.h
 * date    12/6/2019
 * author  Behrouz NematiPour
 *
 */
#pragma once

// Qt
#include <QHash>

// Project
#include "guiglobals.h"
#include "types.h"

namespace Can {

/*!
 * \brief   Sequence
 * \details the messages sequence type
 */
typedef qint16          Sequence;
typedef Types::S16      Sequence_Bytes;
#define SEQUENCE_MAX    INT16_MAX

/*!
 * \brief   FrameCount
 * \details The maximum unsigned integer value to be used as the frame count
 */
typedef quint64 FrameCount;

/*!
 * \brief   Payload Length
 * \details List of each ActionID required data (in byte) length in the message.
 *          So the data collector has to collect this amount of bytes as payload of a message.
 */
const QHash<Gui::GuiActionType ,quint8> payloadLen {
    {Gui::GuiActionType::PowerOff           ,   1     },
    {Gui::GuiActionType::PowerOffBroadcast  ,   0     },
    {Gui::GuiActionType::KeepAlive          , 255     }, // 0 => 255 to be able to run a multi-frame test.
    {Gui::GuiActionType::BloodFlow          ,   7 * 4 }, // 7 parameters each 4bytes
    {Gui::GuiActionType::DialysateInletFlow ,   7 * 4 }, // 7 parameters each 4bytes
    {Gui::GuiActionType::DialysateOutletFlow,   7 * 4 }, // 7 parameters each 4bytes
    {Gui::GuiActionType::TreatmentTime      ,   3 * 4 }, // 3 parameters each 4bytes
    {Gui::GuiActionType::String             , 255     },
    {Gui::GuiActionType::Acknow             ,   0     },
};

/*!
 * \brief   The Payload_Data enum
 * \details Global information for message packet.
 */
enum Payload_Data   : quint8 {
    ePayload_None   = 0x00,
    ePayload_Sync   = 0xA5,
};

/*!
 * \brief   The Frame_Data enum
 * \details Global information for each message frame.
 */
enum Frame_Data : quint8 {
    eLenCanFrame        =   8, ///< The length of each can frame. Should be padded by 0x00 if is less.
    eLenHeaderInfo      =   5, ///< The Header length witch is included in CRC after Sync byte (it's the sum of eLenSequence + eLenActionId + eLenLength)
    eLenMaxHeaderData   =   3, ///< Maximum data byte can be in one frame as header data portion
    eLenMaxData         = 255, ///< Maximum data length in a Can Message since data length value kept in one byte

    eLenSyncByte        =   1, ///< The length of Sync byte at the beginning of each header frame
    eLenSequence        =   2, ///< The length of Sequence number bytes (2) at the beginning of each header frame after sync
    eLenActionId        =   2, ///< The length of MessageID bytes
    eLenLength          =   1, ///< The length of data length value byte at the beginning of each header frame after MessageID

    eLenCRCDigits       =   2,
    eLenChannelDigits   =   3,
    eLenMessageIDDigits =   4,

};

/*!
 * \brief   The Can_Id enum
 * \details The Valid Can Bus MessageID of each frame
 */
enum Can_Id : quint16 {
    eChlid_LOWEST   = 0x7FF,
    eChlid_NONE     = 0x7FF,

    // Broadcasts
    //// Alarm
    eChlid_HD_Alarm = 0x001, ///< HD alarm broadcast
    eChlid_DG_Alarm = 0x002, ///< DG alarm broadcast
    eChlid_UI_Alarm = 0x004, ///< UI alarm broadcast [Out]
    //// Sync
    eChlid_HD_Sync  = 0x040, ///< HD sync  broadcast
    eChlid_DG_Sync  = 0x080, ///< DG sync  broadcast
    eChlid_UI_Sync  = 0x200, ///< UI sync  broadcast [Out]

    // UI not listening
    eChlid_HD_DG    = 0x008, ///< HD => DG
    eChlid_DG_HD    = 0x010, ///< DG => HD

    // UI is  listening
    eChlid_HD_UI    = 0x020, ///< HD => UI
    eChlid_UI_HD    = 0x100, ///< UI => HD [Out]

    // UI lessens occasionally
    eChlid_DG_UI    = eChlid_DG_Alarm, ///< No direct channel has been defined between DG&UI, May be required for logging
    eChlid_UI_DG    = eChlid_UI_Sync , ///< No direct channel has been defined between DG&UI, May be required for logging
};

/*!
 * \brief   The Message struct
 * \details The message structure after it's been converted form hex bytes to meaningful struct for UI.
 */
struct Message { // TODO : Should be converted to MessageModel class // no time left for now !!!
    Can_Id              can_id;
    Sequence            sequence    = 0; // seq 0 is invalid
    Gui::GuiActionType  actionId    = Gui::GuiActionType::Unknown;
    int                 length      = 0;
    QByteArray          head;
    QByteArray          data;
    bool                initialized = false;

    bool isEmpty   () { return !initialized || !data.length();  }
    bool isComplete() { return !isEmpty() && data.length() == length; }
};

typedef QList<Message> MessageList;
typedef QList<QByteArray> FrameList;

}