#include <ctime>
#include <iostream>
#include <string>
#include <boost/asio.hpp>
#pragma warning(disable : 4996) //_CRT_SECURE_NO_WARNINGS

using boost::asio::ip::tcp;

std::string make_daytime_string()
{
    using namespace std; // For time_t, time and ctime;
    time_t now = time(0);
    return ctime(&now);
}

int main()
{
    std::cout << "[TCP Synchronous Server]" << std::endl;
    try
    {
        boost::asio::io_service io_service;

        tcp::acceptor acceptor(io_service, tcp::endpoint(tcp::v4(), 13));

        for (;;)
        {
            boost::system::error_code error;
            tcp::socket socket(io_service);
            acceptor.accept(socket);
            std::cout << "Client Connection Established. IP: " + socket.remote_endpoint().address().to_string() + " Port: " << socket.remote_endpoint().port() << "." << std::endl;

            //Send Data
            std::string message = make_daytime_string();
            boost::asio::write(socket, boost::asio::buffer(message), error);

            //Receive Data
            std::array<char, 256> input_buffer;     //Storage for received data
            std::size_t rsize = socket.read_some(boost::asio::buffer(input_buffer), error);
            std::string ReceivedData(input_buffer.data(), input_buffer.data() + rsize); //Initializing received data into string variable
            std::cout.write(input_buffer.data(), rsize);


            if (error == boost::asio::error::eof)
            {
                std::cerr << "EOF Error" << std::endl;
                break; // Connection closed cleanly by peer.
            }
            else if (error)
            {
                std::cerr << "Other Error" << std::endl;
                throw boost::system::system_error(error); // Some other error.
            }
        }
    }
    catch (std::exception& e)
    {
        std::cerr << "Catch Error" << std::endl;
        std::cerr << e.what() << std::endl;
    }
    return 0;
}