#include <cstring>
#include <expected>
#include <iostream>
#include <span>
#include <string>
#include <vector>
#include <sstream>

#include <google/protobuf/message.h>
#include <control.pb.h>

#include <rpcclient.hpp>
#include <rpcheader.hpp>
#include <netclient.hpp>

RPCClient::RPCClient(NetClient& iconnector) {
        connector = &iconnector;
}

std::expected<void, std::string> RPCClient::DoTransaction(const pbMessage& pbReq, pbMessage& pbRes) {
        std::string rawRequest;
        pbReq.SerializeToString(&rawRequest);

        RPCHeader reqHeader(rawRequest.size());
        auto rawReqHeader = reqHeader.Encode();

        std::string reqPacket;
        reqPacket.append(rawReqHeader);
        reqPacket.append(rawRequest);

        connector->Write(reqPacket);

        const int headerSize = 8;
        std::string rawResHeader;
        connector->Read(rawResHeader, headerSize);
        RPCHeader resHeader;
        resHeader.Decode(rawResHeader);

        std::string rawResponse;
        connector->Read(rawResponse, resHeader.PacketSize());
        pbRes.ParseFromString(rawResponse);
        return {};
}