#include <chrono>
#include <cmath>
#include <cstdio>
#include <thread>

#include "ipc/c_api.h"

int
main(int /* argc */, char** /* argv */)
{
    using namespace std::chrono_literals;

    int verbose = 0;

    printf("\n");
    ipc_init_default(); // default name

    std::thread server_thread([verbose] {
        printf("[c-server] pre-start\n");
        std::this_thread::sleep_for(1s);

        auto server = ipc_create_default(1, verbose);
        printf("[c-server] start\n");

        int value;
        double result;
        while(1) {
            {
                ipc_read_int(server, &value, 1);
                printf("[c-server] read int(%d)\n", value);
            }

            {
                result = value * value;
                result = std::sqrt(value);
                ipc_write_double(server, &result, 1);
                printf("[c-server] write double(%.2e)\n", result);
            }
        }
    });

    printf("[c-client] pre-start\n");
    auto client = ipc_create_default(0, verbose);
    printf("[c-client] start\n");

    double answer;
    auto hline = "\n------------------------\n";
    for (int i = 2; i <= 5; ++i) {
        std::this_thread::sleep_for(500ms);
        printf(hline);

        {
            ipc_write_int(client, &i, 1);
            printf("[c-client] write int(%d)\n", i);
        }

        {
            ipc_read_double(client, &answer, 1);
            printf("[c-client] read double(%.2e)\n", answer);
        }
    }

    printf(hline);
    printf("[c-client] finish the work\n\n");

    return 0;
}