// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;
using System.Security.Claims;
using System.Threading.Tasks;

namespace Microsoft.AspNetCore.Authentication
{
    public class ClaimsTransformer : IClaimsTransformer
    {
        public Func<ClaimsTransformationContext, Task<ClaimsPrincipal>> OnTransform { get; set; }

        public virtual Task<ClaimsPrincipal> TransformAsync(ClaimsTransformationContext context)
        {
            return OnTransform?.Invoke(context) ?? Task.FromResult(context.Principal);
        }
    }
}