using System;
using System.Globalization;
using System.Threading;
using System.Threading.Tasks;

namespace Needle.Engine.Utils
{
	// https://stackoverflow.com/a/25097498
	public static class AsyncHelper
	{
		private static readonly TaskFactory _myTaskFactory = new TaskFactory(CancellationToken.None,
			TaskCreationOptions.None, TaskContinuationOptions.None, TaskScheduler.Default);

		public static TResult RunSync<TResult>(Func<Task<TResult>> func)
		{
			var cultureUi = CultureInfo.CurrentUICulture;
			var culture = CultureInfo.CurrentCulture;
			return _myTaskFactory.StartNew(() =>
			{
				Thread.CurrentThread.CurrentCulture = culture;
				Thread.CurrentThread.CurrentUICulture = cultureUi;
				return func();
			}).Unwrap().GetAwaiter().GetResult();
		}

		public static void RunSync(Func<Task> func)
		{
			var cultureUi = CultureInfo.CurrentUICulture;
			var culture = CultureInfo.CurrentCulture;
			_myTaskFactory.StartNew(() =>
			{
				Thread.CurrentThread.CurrentCulture = culture;
				Thread.CurrentThread.CurrentUICulture = cultureUi;
				return func();
			}).Unwrap().GetAwaiter().GetResult();
		}
	}
}