using System;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
 
namespace Microsoft.Maui.ApplicationModel
{
	static class Utils
	{
		internal static Version ParseVersion(string version)
		{
			if (Version.TryParse(version, out var number))
				return number;
 
			if (int.TryParse(version, out var major))
				return new Version(major, 0);
 
			return new Version(0, 0);
		}
 
		internal static CancellationToken TimeoutToken(CancellationToken cancellationToken, TimeSpan timeout)
		{
			// create a new linked cancellation token source
			var cancelTokenSrc = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
 
			// if a timeout was given, make the token source cancel after it expires
			if (timeout > TimeSpan.Zero)
				cancelTokenSrc.CancelAfter(timeout);
 
			// our Cancel method will handle the actual cancellation logic
			return cancelTokenSrc.Token;
		}
 
		internal static async Task<T> WithTimeout<T>(Task<T> task, TimeSpan timeSpan)
		{
			var retTask = await Task.WhenAny(task, Task.Delay(timeSpan))
				.ConfigureAwait(false);
 
			return retTask is Task<T> ? task.Result : default(T);
		}
	}
}