PlombirLauncher/Launcher-UI/LauncherUtils.cs

using System;
using System.Threading.Tasks;
using Avalonia.Controls;
using LauncherGUI.ViewModels;
using LauncherGUI.Views;

namespace Plombir;

public class LauncherUtils
{
    public async static Task CreateMinecraftInstance(MainWindowViewModel vm, Window windowCaller)
    {
        if (vm.Usernick is null) throw new NullReferenceException("Failed to create minecraft instance! Nickname is null!");
        if (vm.SelectedVersion is null) throw new NullReferenceException("Failed to create minecraft instance! Selected version is null!");

        System.Console.WriteLine($"Creating minecraft instance for {vm.Usernick}, {vm.SelectedVersion} in {vm.RuntimeLocation}");
        LoadingWindow loading = new(vm.Usernick, vm.SelectedVersion, vm.RuntimeLocation);
        ConfigManager.WriteInConfig("last-version-launched", vm.SelectedVersion);
        ConfigManager.WriteInConfig("nickname", vm.Usernick);

        loading.Show();
        await loading.InitLoading();
        loading.Close();
        await loading.RunMinecraft();
        return;
    }
}