using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Syc.Authorize.JwtBearer;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;

namespace Microsoft.Extensions.DependencyInjection
{

    public static class JwtBearerExtensions
    {

        /// <summary>
        /// 未授权
        /// </summary>
        /// <param name="httpResponse"></param>
        /// <returns></returns>
        internal static async Task UnauthorizedAsync(this HttpResponse httpResponse)
        {
            httpResponse.ContentType = "application/json";
            var errorMsgResponse = GetResponse(StatusCodes.Status401Unauthorized, "Unauthorized");
            await httpResponse.WriteAsJsonAsync(errorMsgResponse);
        }

        /// <summary>
        /// 权限不足
        /// </summary>
        /// <returns></returns>
        internal static async Task ForbiddenAsync(this HttpResponse httpResponse)
        {
            httpResponse.ContentType = "application/json";
            var errorMsgResponse = GetResponse(StatusCodes.Status403Forbidden, "Forbidden");
            await httpResponse.WriteAsJsonAsync(errorMsgResponse);
        }

        private static JwtBearerErrorMsgResponse GetResponse(int statusCode, string msg) => new JwtBearerErrorMsgResponse()
        {
            Code = statusCode,
            Data = null,
            Message = msg
        };

        public static IApplicationBuilder UseAppAuthentication(this IApplicationBuilder app)
        {
            app.UseAuthentication();
            app.UseAuthorization();
            return app;
        }
    }
}