/*

Compiler: g++
Flags: -static-libgcc -static-libstdc++
*/

#include <iostream>
#include <string>
#include "argh.h"

void exampleMessage();

int main (int argc, char* argv[])
{
    std::string file, check;
    int port = 0;

    argh::parser cmdl;
    cmdl.parse(argc, argv, argh::parser::PREFER_PARAM_FOR_UNREG_OPTION);

    if(cmdl["-h"]) // help
    {
        exampleMessage();
    }

    for(auto& param: cmdl.params())
    {
        if(!param.first.compare("f")) // card0 file
        {
            file = param.second;
        }
        if(!param.first.compare("c")) // checker file
        {
            check = param.second;
        }
        if(!param.first.compare("p")) // port
        {
            try 
            {
                port = stoi(param.second); // convert to int
                if (port < 1 || port > 65535) // validate port number
                    exampleMessage();
            }
            catch (std::invalid_argument) // failed convert
            {
                exampleMessage();
            }
        }
    }

    if(file == "" || check == "" || port == 0) // failed validation
        exampleMessage();

    std::cout << "File:\t" << file << std::endl;
    std::cout << "Check:\t" << check << std::endl;
    std::cout << "Port:\t" << port << std::endl;


    return 0;
}

void exampleMessage() // help menu
{
    std::cout << "Availble options:" << std::endl;
    std::cout << "  -f\tLocation of card0.txt file" << std::endl;
    std::cout << "  -c\tLocation of check file" << std::endl;
    std::cout << "  -p\tPort number to listen on (1-65535)" << std::endl;
    std::cout << std::endl << "Example usage: cardnet.exe -f G:\\card0.txt -c G:\\check.txt -p 4500" << std::endl;
    exit(0);

}