/*
 * ModbusAnalogWideValue.hh
 *
 *  Created on: 17 апр. 2023 г.
 *      Author: titov
 */

#ifndef UMLIBRARY_DRIVER_MODBUSANALOGWIDEVALUE_HH_
#define UMLIBRARY_DRIVER_MODBUSANALOGWIDEVALUE_HH_

#include <stdint.h>

#include "../systemic/IValueAsync.hpp"

#include "IModBus.hh"

namespace driver {
namespace modbus {

//!
class ModbusAnalogWideValue {

    typedef IModBusDispatch::Status Status;

    float write_coeff;
    float write_offset;
    float read_coeff;
    float read_offset;

    bool format_signed;

    float up_limit;
    float down_limit;

    systemic::IValueType<float> & tech_value;

    const uint32_t nan_out_of_range; //!< Сопоставление для значения NAN сигнала

    bool extract();
    bool update();

    mutable uint16_t data[2];

    struct PartShower : public IModBusDispatch {

        ModbusAnalogWideValue & self;

        uint16_t * const data;

        Status read( uint16_t & reg );
        Status write( uint16_t reg );

        PartShower( ModbusAnalogWideValue & self, uint16_t * data ) : data(data), self(self) {}
    };

    struct PartUpdater : public IModBusDispatch {

        ModbusAnalogWideValue & self;

        uint16_t * const data;

        Status read( uint16_t & reg );
        Status write( uint16_t reg );

        PartUpdater( ModbusAnalogWideValue & self, uint16_t * data ) : data(data), self(self) {}
    };

    PartShower  one;
    PartUpdater two;

public:
    //!Последовательность слов в регистрах
    enum WordSequence {
        HighFirstLowSecond, //!<Первый старший, второй младший.
        LowFirstHighSecond  //!<Первый младший, второй старший.
    };

    ModbusAnalogWideValue(  systemic::IValueType<float> & value,
                            float write_coeff, float write_offset, float read_coeff, float read_offset,
                            bool sign, float up_limit, float down_limit, uint32_t nan_register, WordSequence sequnece );

    //!Первый из пары регистров.
    IModBusDispatch & first();
    //!Второй из пары регистров.
    IModBusDispatch & second();

};

}
}



#endif /* UMLIBRARY_DRIVER_MODBUSANALOGWIDEVALUE_HH_ */