/*
 * ModbusAdapter.hpp
 *
 *  Created on: 17 Aug 2022
 *      Author: malyarenko
 */

#ifndef UMLIBRARY_DRIVER_MODBUSADAPTER_HPP_
#define UMLIBRARY_DRIVER_MODBUSADAPTER_HPP_

#include <cstddef>

#include "../systemic/IValueAsync.hpp"
#include "../systemic/IFunctor.hh"
#include "../peripheral/IUartPort.hh"
#include "../peripheral/IGpio.hh"

namespace driver {

class ModbusAdapter : public peripheral::IUartPort {
public:
    typedef systemic::IFunctor<void, bool> TranceiverHandler;
    typedef systemic::IValueTypeSet<TranceiverHandler *> Callback;

    ModbusAdapter( peripheral::IUartPort * uart,
                   Callback * uart_callback,
                   peripheral::IGpio * de_pin,
                   bool de_active_level,
                   peripheral::IGpio * re_pin,
                   bool re_active_level );

    bool send( const char * data, std::size_t data_bytes ) override;

    bool receive( char * buffer, std::size_t data_bytes ) override;

    bool isDataSent() const override;

    bool isRecieptionError() const override;

    void reset() override;

    std::size_t transmitBuffCapacity() const override;

    std::size_t receiveBuffCapacity() const override;

private:
    struct TranceiverControl : public TranceiverHandler {
        ModbusAdapter & super;

        void operator ()(bool tx_nrx) override;

        TranceiverControl( ModbusAdapter & super )
            : super(super) {};
    };

    peripheral::IUartPort & uart;
    TranceiverControl txrx_control;

    peripheral::IGpio & de_pin;
    bool de_active_level;

    peripheral::IGpio & re_pin;
    bool re_active_level;

    inline void setTxMode();

    inline void setRxMode();
};

} /* namespace driver */

#endif /* UMLIBRARY_DRIVER_MODBUSADAPTER_HPP_ */