/***************************************************************************

  BionxControl
  Copyright © 2025 christoph holzheuer
  christoph.holzheuer@gmail.com

  Using:

  mhs_can_drv.c
  © 2011 - 2023 by MHS-Elektronik GmbH & Co. KG, Germany
  Klaus Demlehner, klaus@mhs-elektronik.de
  @see www.mhs-elektronik.de

  Based on Bionx data type descriptions from:

  BigXionFlasher USB V 0.2.4 rev. 97
  © 2011-2013 by Thomas Koenig <info@bigxionflasher.org>
  @see www.bigxionflasher.org

  Bionx Bike Info
  © 2018 Thorsten Schmidt (tschmidt@ts-soft.de)
  @see www.ts-soft.de

  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; either version 3 of the License, or
  (at your option) any later version.
  @see https://github.com/bikemike/bionx-bikeinfo

 ***************************************************************************/


#include <bcvaluetype.h>
#include <bcvalue.h>


/// reader functions



TransmitResult readDummy( const BCAbstractTransmitter& transmitter, uint32_t deviceID, uint8_t registerID )
{
  qDebug() << " --- NO: Read DUMMY: " << registerID;
  return std::unexpected( QString("NO: Read DUMMY: %1 : %2 ").arg( deviceID, registerID ) );
}

TransmitResult readByteValue( const BCAbstractTransmitter& transmitter, uint32_t deviceID, uint8_t registerID )
{
  qDebug() << " --- YES: Read ByteValue: " << registerID;
  // Wir lesen nur ein Byte und gut.
  return transmitter.readByte( deviceID, registerID );
}


TransmitResult readWordValue( const BCAbstractTransmitter& transmitter, uint32_t deviceID, uint8_t registerID )
{
  qDebug() << " --- YES: Read WordValue: " << registerID;

  //getValue(CONSOLE, CONSOLE_SN_PN_HI) << 8) + getValue(CONSOLE, CONSOLE_SN_PN_LO)),
  uint32_t result{};
  // hi byte Leseversuch.
  TransmitResult value = transmitter.readByte( deviceID, registerID );
  // Fehler? dann weg
  if( !value)
    return std::unexpected( value.error() );
  // hi byte speichern
  result = *value << 8;
  // low byte, liegt im followup register: +1
  value = transmitter.readByte( deviceID, registerID+1 );
  if( !value)
    return std::unexpected( value.error() );
  result += *value;
  return result;
}

TransmitResult readSpeedValue( const BCAbstractTransmitter& transmitter, uint32_t deviceID, uint8_t registerID )
{
  return 0x0;
}

TransmitResult readODOValue( const BCAbstractTransmitter& transmitter, uint32_t deviceID, uint8_t registerID )
{
  return 0x0;
}

TransmitResult readVoltValue( const BCAbstractTransmitter& transmitter, uint32_t deviceID, uint8_t registerID )
{
  return 0x0;
}

TransmitResult readCircValue( const BCAbstractTransmitter& transmitter, uint32_t deviceID, uint8_t registerID )
{
  return 0x0;
}

/**
 * @brief BCValueType::BCValueType
 */

BCValueType::BCValueType()
{

}


BCValueType::BCValueType(QString unitKey_, QString unitLabel_, double factor_, optDouble min_, optDouble max_ )
  : unitLabel{unitLabel_}, factor{factor_}, min{min_}, max{max_}
{
  std::optional<ReadValueFunc> readFn = fetchReadValueFunction( unitKey_ );
  readValueFunc = readFn.has_value() ? readFn.value() : readDummy;
}


QString BCValueType::formatValue( uint32_t value ) const
{
  if( factor == 1 )
    return QString::number( value );

  double result = value * factor;
  return QString::number(result, 'f', 2);
}

std::optional<ReadValueFunc> BCValueType::fetchReadValueFunction( const QString& unitTypeKey )
{
  static QHash<QString,ReadValueFunc> s_bcReadValueFunctions
  {
    { "Byte",   readByteValue },
    { "Word",   readWordValue },
    { "Assist", readByteValue },

    { "Kmh",    readByteValue },
    { "Percent",readByteValue },
    { "KWh",    readByteValue },
    { "Watt",   readByteValue },
    { "Km",     readByteValue },

    { "Mm",     readByteValue },
    { "Sec",    readByteValue },
    { "Degree", readByteValue },
    { "SoC",    readByteValue },
    { "Odo",    readByteValue },

  };

  if( !s_bcReadValueFunctions.contains( unitTypeKey ) )
    return std::nullopt;

  return s_bcReadValueFunctions[unitTypeKey];
}

std::optional<BCValueType*> BCValueType::fetchValueType( const QString& unitTypeKey )
{
  static QHash<QString,BCValueType*> s_bcDataTypes
  {
    { "Byte",    new BCValueType( "Byte", "", 1.5625F) },
    { "Word",    new BCValueType( "Word", "", 1.5625F) },
    { "Percent", new BCValueType( "Byte", "%", 1.5625 ) },
    { "AssInit", new BCValueType( "Byte", "", 1.0, 0 ,4 ) },
    { "Assist",  new BCValueType( "Byte", "%", 0,400 ) }
    /*
    { "KWh",    new BCValueType( "kwh", 1.5625 ) },
    { "Watt",   new BCValueType( "w", 1.5625 ) },
    { "Km",     new BCValueType( "km", 1.5625 ) },
    { "Kmh",    new BCValueType( "km/h", 0.1 ) },
    { "Mm",     new BCValueType( "mm", 1.5625 ) },
    { "Sec",    new BCValueType( "s", 1.5625 ) },
    { "Degree", new BCValueType( "°C", 1.0 ) },
    { "SoC",    new BCValueType( "%", 1.5625 ) },
    { "Odo",    new BCValueType( "km", 1.5625 ) },

    { "Assist", new BCValueType( "%" ) },
    */
  };

  if( !s_bcDataTypes.contains( unitTypeKey ) )
    return std::nullopt;

  return s_bcDataTypes[unitTypeKey];

}

/// ----