using System;
using System.Threading;
using Python.Runtime;

namespace MyApp
{
    public class MyClass
    {
        public int PrintToConsole(string message)
        {
            Console.WriteLine(".NET: Got message: " + message);
            return 0;
        }

        public void AskForCallback(Delegate callback)
        {
            Console.WriteLine(".NET: AskForCallback");
            new Thread(() =>
            {
                Thread.Sleep(1000);
                Console.WriteLine(".NET: Calling callback");

                using (Py.GIL())
                {
                    Console.WriteLine(".NET: Aquired Py.GIL");
                    object[] paramToPass = new object[2];
                    paramToPass[0] = 12345;
                    paramToPass[1] = "This is a callback!";
                    Console.WriteLine($".NET: Calling Python");
                    callback.DynamicInvoke(paramToPass);
                    Console.WriteLine(".NET: Called Python");
                }
            }).Start();
            Console.WriteLine(".NET: AskForCallback finished");
        }
    }
}