#include "carmakerwork.h"

using grpc::Channel;
using grpc::ClientContext;
using grpc::Status;

carmakerwork::carmakerwork(std::string strserver)
{
    mstrserver = strserver;
    mbRun = true;
    mpthread = new std::thread(&carmakerwork::threadwork,this);
}

carmakerwork::~carmakerwork()
{
    mbRun = false;
    mpthread->join();
}


void carmakerwork::threadwork()
{
    auto cargs = grpc::ChannelArguments();
    cargs.SetMaxReceiveMessageSize(1024 * 1024 * 1024); // 1 GB
    cargs.SetMaxSendMessageSize(1024 * 1024 * 1024);

    std::shared_ptr<Channel> channel = grpc::CreateCustomChannel(
                mstrserver, grpc::InsecureChannelCredentials(),cargs);

    std::unique_ptr<iv::ipg::Carmaker::Stub> stub_ = iv::ipg::Carmaker::NewStub(channel);




    gpr_timespec timespec;
    timespec.tv_sec = 10;//设置阻塞时间为2秒
    timespec.tv_nsec = 0;
    timespec.clock_type = GPR_TIMESPAN;

    int64_t interval = 100;

    int64_t lastreq = 0;

    int nRes = 0;
    std::shared_ptr<char> pout_ptr = nullptr;
    int64_t nWorkID;
    int nOutSize;
    int nnowork = 0;

    while(mbRun)
    {

        if(nRes == 0)
        {
            int64_t nnow = std::chrono::system_clock::now().time_since_epoch().count()/1000000;
            int64_t diff = static_cast<int64_t>(abs(nnow - lastreq)) ;
            if(diff<interval)
            {
                std::this_thread::sleep_for(std::chrono::milliseconds(interval-diff));
            }
        }
        iv::ipg::workReq request;

        // Container for the data we expect from the server.
        iv::ipg::workReply reply;

        request.set_mnres(nRes);
        if(nRes == 1)
        {
            if(pout_ptr != nullptr)
            {
               request.set_workid(nWorkID);
               request.set_xdata(pout_ptr.get(),static_cast<size_t>(nOutSize));
            }
            else
            {
                std::cout<<" carmaker work. nres is 1, but no data. please check."<<std::endl;
            }
        }

        nRes = 0; //Set res to Default;

        ClientContext context ;
        context.set_deadline(timespec);

        lastreq = std::chrono::system_clock::now().time_since_epoch().count()/1000000;

        Status status = stub_->convertwork(&context, request, &reply);
        if (status.ok()) {

            if(reply.mnres() == 1)
            {
                nnowork = 0;
                nWorkID = reply.workid();
                std::shared_ptr<char> pinput_ptr = nullptr;
                int ninputsize = static_cast<int>(reply.data_input().size()) ;
                pinput_ptr = std::shared_ptr<char>(new char[ninputsize]);
                memcpy(pinput_ptr.get(),reply.data_input().data(),ninputsize);
                nRes = ExecCarmakerWork(nWorkID,reply.strinputname(),reply.stroutputname(),reply.strcmd(),
                                        pinput_ptr,ninputsize,pout_ptr,nOutSize);
            }
            if(reply.mnres() == 0)
            {
                nnowork++;
                if(nnowork>=30)
                {
                    nnowork = 0;
                    std::cout<<" no work."<<std::endl;
                }
                nRes = 0;
            }
        } else {
            std::cout << status.error_code() << ": " << status.error_message()
                      << std::endl;
            std::cout<<"RPC failed"<<std::endl;

            std::this_thread::sleep_for(std::chrono::milliseconds(3000));


        }

    }

}