#include <iostream>
#include <strstream>

#include "../comm_server_configfile.h"



int main(int argc, char* argv[])
{
    if (argc < 2) {
        std::cout << "Usage: " << argv[0] << " cfg_filename\n";
        return 1;
    }

    auto print_cfg = [](auto const& cfg) {
        for (auto& [key, v] : cfg.config()) {
            std::cout << key << " = ";
            if (auto v_str = std::get_if<1>(&v)) {
                std::cout << *v_str;
            } else if (auto v_vec = std::get_if<2>(&v)) {
                for (auto& el : *v_vec) {
                    std::cout << "<" << el << "> ";
                }
            }

            std::cout << "\n";
        }
    };

    mcc::MccConfigfile cfg;

    std::string str = R"--(key_no_val
           # comment example
           scalar_key = scalar-value

           vec_key = 1,2,3    , 345, 4576, 79
          )--";

    std::istrstream ist(str.c_str());
    cfg.load(ist);

    std::cout << "From input stream: \n";
    print_cfg(cfg);

    cfg["vec_key"] = std::vector<std::string>{"10", "20", "30"};
    cfg["new_key"] = "new-key-value";


    cfg.save(std::string_view{argv[1]});

    auto ec = cfg.load(std::string_view{argv[1]});
    if (ec) {
        std::cout << "ERR: " << ec.message() << "\n";
        return 1;
    }

    std::cout << "\n\nFrom file (edited):\n";
    print_cfg(cfg);

    return 0;
}