HdlcdClientError.h

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#ifndef HDLCD_CLIENT_DEVICE_ERROR_H
#define HDLCD_CLIENT_DEVICE_ERROR_H

#include "ConfigFrame.h"
#include <memory>

class HdlcdClientError: public ConfigFrame {
public:
    static HdlcdClientError Create(uint16_t a_SerialPortNbr, uint16_t a_ErrorCode) {
        HdlcdClientError l_HdlcdClientError;
        l_HdlcdClientError.m_SerialPortNbr = a_SerialPortNbr;
        l_HdlcdClientError.m_ErrorCode = a_ErrorCode;
        return l_HdlcdClientError;
    }

    static std::shared_ptr<HdlcdClientError> CreateDeserializedFrame() {
        auto l_HdlcdClientError(std::shared_ptr<HdlcdClientError>(new HdlcdClientError));
        l_HdlcdClientError->m_eDeserialize = DESERIALIZE_BODY;
        l_HdlcdClientError->m_BytesRemaining = 5; // Next: read body including the frame type byte
        return l_HdlcdClientError;
    }

    // Getter
    uint16_t GetSerialPortNbr() const {
        assert(m_eDeserialize == DESERIALIZE_FULL);
        return m_SerialPortNbr;
    }

    uint16_t GetErrorCode() const {
        assert(m_eDeserialize == DESERIALIZE_FULL);
        return m_ErrorCode;
    }

private:
    // Private CTOR
    HdlcdClientError(): m_SerialPortNbr(0), m_ErrorCode(0), m_eDeserialize(DESERIALIZE_FULL) {
    }

    // Methods
    E_CONFIG_FRAME GetConfigFrameType() const { return CONFIG_FRAME_HDLCD_CLIENT_ERROR; }

    // Serializer
    const std::vector<unsigned char> Serialize() const {
        assert(m_eDeserialize == DESERIALIZE_FULL);
        std::vector<unsigned char> l_Buffer;
        l_Buffer.emplace_back(CONFIG_FRAME_HDLCD_CLIENT_ERROR);
        l_Buffer.emplace_back((m_SerialPortNbr >> 8) & 0xFF);
        l_Buffer.emplace_back((m_SerialPortNbr >> 0) & 0xFF);
        l_Buffer.emplace_back((m_ErrorCode     >> 8) & 0xFF);
        l_Buffer.emplace_back((m_ErrorCode     >> 0) & 0xFF);
        return l_Buffer;
    }

    // Deserializer
    bool Deserialize() {
        // All requested bytes are available
        switch (m_eDeserialize) {
        case DESERIALIZE_BODY: {
            // Deserialize the body including the frame type byte
            assert(m_Buffer.size() == 5);
            assert(m_Buffer[0] == CONFIG_FRAME_HDLCD_CLIENT_ERROR);
            m_SerialPortNbr = ntohs(*(reinterpret_cast<const uint16_t*>(&m_Buffer[1])));
            m_ErrorCode     = ntohs(*(reinterpret_cast<const uint16_t*>(&m_Buffer[3])));
            m_eDeserialize = DESERIALIZE_FULL;
            break;
        }
        case DESERIALIZE_ERROR:
        case DESERIALIZE_FULL:
        default:
            assert(false);
        } // switch

        // No error
        return true;
    }

    // Members
    uint16_t m_SerialPortNbr;
    uint16_t m_ErrorCode;
    typedef enum {
        DESERIALIZE_ERROR = 0,
        DESERIALIZE_BODY  = 1,
        DESERIALIZE_FULL  = 2
    } E_DESERIALIZE;
    E_DESERIALIZE m_eDeserialize;
};

#endif // HDLCD_CLIENT_DEVICE_ERROR_H