using Elight.Utility.Enum;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using System.ComponentModel;
using System.Net.Http.Headers;
using System.Security.Claims;
using System.Text;
using System.Text.Encodings.Web;

namespace Elight.Utility
{ /// <summary>
  /// 响应认证处理器
  /// </summary>
  /// Author:mxg
  /// CreatedTimed:2022-05-15 10:08 PM
    public class ResponseAuthenticationHandler : AuthenticationHandler<AuthenticationSchemeOptions>
    {
        #region Identity

        public ResponseAuthenticationHandler(IOptionsMonitor<AuthenticationSchemeOptions> options,
            ILoggerFactory logger,
            UrlEncoder encoder,
            ISystemClock clock
        ) : base(options, logger, encoder, clock)
        {
        }

        #endregion Identity

        /// <summary>
        ///
        /// </summary>
        /// <returns></returns>
        /// <exception cref="NotImplementedException"></exception>
        protected override Task<AuthenticateResult> HandleAuthenticateAsync() => throw new NotImplementedException();

        /// <summary>
        ///  HandleChallengeAsync
        /// </summary>
        /// <param name="properties"></param>
        /// <returns></returns>
        protected override async Task HandleChallengeAsync(AuthenticationProperties properties)
        {
            Response.ContentType = "application/json";
            Response.StatusCode = StatusCodes.Status401Unauthorized;
            await Response.WriteAsync(JsonConvert.SerializeObject(
                new ResponseStatusData
                {
                    Code = CustomizedStatusCodeEnum.Status401Unauthorized,
                    Msg = CustomizedStatusCodeEnum.Status401Unauthorized.ToDescription()
                },
                new JsonSerializerSettings()
                {
                    ContractResolver = new CamelCasePropertyNamesContractResolver()
                }
            ));
        }
        /// <summary>
        ///  HandleForbiddenAsync
        /// </summary>
        /// <param name="properties"></param>
        /// <returns></returns>
        protected override async Task HandleForbiddenAsync(AuthenticationProperties properties)
        {
            Response.ContentType = "application/json";
            Response.StatusCode = StatusCodes.Status403Forbidden;
            await Response.WriteAsync(JsonConvert.SerializeObject(
                new ResponseStatusData
                {
                    Code = CustomizedStatusCodeEnum.Status403Forbidden,
                    Msg = CustomizedStatusCodeEnum.Status403Forbidden.ToDescription()
                },
                new JsonSerializerSettings()
                {
                    ContractResolver = new CamelCasePropertyNamesContractResolver()
                }
            ));
        }
    }

    /// <summary>
    ///
    /// </summary>
    public class ResponseStatusData
    {
        /// <summary>
        /// 状态码枚举 (0:操作失败 1:操作成功 401:未登录 403:权限不足 404:资源不存在 500:系统内部错误)
        /// <see cref="CustomizedStatusCodeEnum"/>
        /// </summary>
        public CustomizedStatusCodeEnum Code { get; set; } = CustomizedStatusCodeEnum.Status1Ok;

        /// <summary>
        ///
        /// </summary>
        public string? Msg { get; set; }
    }
}