#include "ClientArguments.h"

#include "windows.h"
#include <locale>
#include <codecvt>
#include <string>
#include <vector>
#include <stdexcept>

namespace {
    std::vector<std::string> arguments;

    size_t argIndex(std::string const& arg)
    {
        for (size_t i = 0; i < arguments.size(); ++i)
        {
            if (arguments[i] == arg || arguments[i].find(arg + "=") == 0)
            {
                return i;
            }
        }
        return std::string::npos;
    }

    std::string parseArgument(std::string const& in)
    {
        size_t index = argIndex(in);
        if (index == std::string::npos) throw 0;
        std::string const& v = arguments[index];
        if (v.find("=", in.size()))
        {
            return v.substr(in.size() + 1);
        }
        throw 0;
    }
}

void ClientArguments::initialize(std::string const& str)
{
    arguments.clear();
    std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
    std::wstring wide = converter.from_bytes(str);

    int argC;
    LPWSTR* wstr = CommandLineToArgvW(wide.c_str(), &argC);
    for (int i = 0; i < argC; ++i)
    {
        std::string v = converter.to_bytes(wstr[i]);
        arguments.push_back(converter.to_bytes(wstr[i]));
    }
}

std::string ClientArguments::GetString(std::string const& name, std::string const& def)
{
    try {
        return parseArgument(name);
    }
    catch (...) {
        return def;
    }
}

float ClientArguments::GetFloat(std::string const& name, float def)
{
    try {
        return std::stof(parseArgument(name));
    }
    catch (...)
    {
        return def;
    }
}

double ClientArguments::GetDouble(std::string const& name, double def)
{
    try {
        return std::stod(parseArgument(name));
    }
    catch (...) {
        return def;
    }
}

int ClientArguments::GetInt(std::string const& name, int def)
{
    try {
        return std::stoi(parseArgument(name));
    }
    catch (...) {
        return def;
    }
}

bool ClientArguments::Has(std::string const& arg)
{
    return argIndex(arg) != std::string::npos;
}