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using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Test.Services.Middleware
{
    public class TestUserMiddleware
    {
        private readonly RequestDelegate _next;

        public TestUserMiddleware(RequestDelegate next)
        {
            _next = next;
        }

        public async Task InvokeAsync(HttpContext context)
        {
            var userAccess = context.RequestServices.GetRequiredService<ITestUserAccessor>();
            var testUser = new TestUser();
            var userName = context.Request.Headers["X-TEST-USERNAME"];
            var userIdStr = context.Request.Headers["X-TEST-USERID"];
            int userId;

            if (!string.IsNullOrEmpty(userName))
            {
                testUser.Username = userName;
            }
            if (int.TryParse(userIdStr, out userId))
            {
                testUser.UserId = userId;
            }

            userAccess.CurrentUser = testUser;

            await _next(context);
        }
    }
}