SnetServiceMessage.h

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#ifndef SNET_SERVICE_MESSAGE_H
#define SNET_SERVICE_MESSAGE_H

#include "SnetAppMessage.h"

class SnetServiceMessage: public SnetAppMessage {
public:
    SnetServiceMessage(uint8_t a_SrcServiceId = 0, uint8_t a_DstServiceId = 0, uint8_t a_Token = 0, uint16_t a_SrcSSA = 0xFFFE, uint16_t a_DstSSA = 0xFFFE, bool a_OnAirARQ = true): SnetAppMessage(a_SrcServiceId, a_DstServiceId, a_Token, a_SrcSSA, a_DstSSA, a_OnAirARQ) {}

    // Setters and getters
    void SetPayload(const std::vector<unsigned char> &a_Payload) { m_Payload = a_Payload; }
    std::vector<unsigned char> GetPayload() const { return m_Payload; }

    // Query the size of the packet in bytes
    size_t GetSize() const { return (SnetAppMessage::GetSize() + m_Payload.size()); }

    // Serializer and deserializer
    std::vector<unsigned char> Serialize() const {
        std::vector<unsigned char> l_Buffer(SnetAppMessage::Serialize());
        l_Buffer.insert(l_Buffer.end(), m_Payload.begin(), m_Payload.end());
        return l_Buffer;
    }

    size_t Deserialize(const std::vector<unsigned char>& a_Buffer) {
        size_t l_Offset = SnetAppMessage::Deserialize(a_Buffer);
        if (l_Offset) {
            m_Payload.assign((a_Buffer.begin() + l_Offset), a_Buffer.end());
            l_Offset += m_Payload.size();
        } // if
        
        return l_Offset; 
    }

    // Dissector
    std::string Dissect() const {
        std::stringstream l_Output;
        l_Output << SnetAppMessage::Dissect() << ", with " << std::dec << std::setw(3) << m_Payload.size() << " bytes payload:";
        for (auto it = m_Payload.begin(); it != m_Payload.end(); ++it) {
            l_Output << " " << std::hex << std::setw(2) << std::setfill('0') << int(*it);
        } // for

        return l_Output.str();
    }
    
private:
    std::vector<unsigned char> m_Payload;
};

#endif // SNET_SERVICE_MESSAGE_H