#include <QCoreApplication>
#include <expected>
#include <iostream>
#include "mainscreen.h"

std::expected<std::string, int> parseArgs(int argc, char **argv) {
    std::vector<std::string> arg_list;
    for(int i=1;i < argc; i++) {
        arg_list.push_back(argv[i]);
    }
    if (argc == 1) {
        return "";
    }
    if(argc == 2) {
        return arg_list[0];
    }
    else {
        return std::unexpected(1);
    }
}

void printHelp(int t) {
    if(t == 1) {
        std::cout << "Invalid number of arguments." << std::endl;
    }
    std::cout << "USAGE: nekodl [Search Term]" << std::endl;
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    auto args = parseArgs(argc, argv);
    if(!args.has_value()) {
        printHelp(args.error());
        return -1;
    }
    MainScreen screen(args.value());
    // Set up code that uses the Qt event loop here.
    // Call QCoreApplication::quit() or QCoreApplication::exit() to quit the application.
    // A not very useful example would be including
    // #include <QTimer>
    // near the top of the file and calling
    // QTimer::singleShot(5000, &a, &QCoreApplication::quit);
    // which quits the application after 5 seconds.

    // If you do not need a running Qt event loop, remove the call
    // to QCoreApplication::exec() or use the Non-Qt Plain C++ Application template.

    return QCoreApplication::exec();
}