// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Collections.Generic;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Features;
 
namespace Microsoft.AspNetCore.Server.Kestrel.Microbenchmarks;
 
public class MockHttpContextFactory : IHttpContextFactory
{
    private readonly Lock _lock = new();
    private readonly Queue<DefaultHttpContext> _cache = new Queue<DefaultHttpContext>();
 
    public HttpContext Create(IFeatureCollection featureCollection)
    {
        DefaultHttpContext httpContext;
 
        lock (_lock)
        {
            if (!_cache.TryDequeue(out httpContext))
            {
                httpContext = new DefaultHttpContext();
            }
        }
 
        httpContext.Initialize(featureCollection);
        return httpContext;
    }
 
    public void Dispose(HttpContext httpContext)
    {
        lock (_lock)
        {
            var defaultHttpContext = (DefaultHttpContext)httpContext;
 
            defaultHttpContext.Uninitialize();
            _cache.Enqueue(defaultHttpContext);
        }
    }
}