using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Extensions;
using System;
using System.Collections.Generic;
using System.IdentityModel.Tokens.Jwt;
using System.Linq;
using System.Security.Claims;
using System.Text;
using System.Threading.Tasks;
using WIDESEAWCS_Core.Helper;

namespace WIDESEAWCS_Core.Extensions
{
    public static class SwaggerContextExtension
    {
        public const string SwaggerCodeKey = "swagger-code";
        public const string SwaggerJwt = "swagger-jwt";

        public static bool IsSuccessSwagger()
        {
            return App.HttpContext?.GetSession()?.GetString(SwaggerCodeKey) == "success";
        }

        public static bool IsSuccessSwagger(this HttpContext context)
        {
            return context.GetSession()?.GetString(SwaggerCodeKey) == "success";
        }

        public static void SuccessSwagger()
        {
            App.HttpContext?.GetSession()?.SetString(SwaggerCodeKey, "success");
        }

        public static void SuccessSwagger(this HttpContext context)
        {
            context.GetSession()?.SetString(SwaggerCodeKey, "success");
        }

        public static void SuccessSwaggerJwt(this HttpContext context, string token)
        {
            var claims = new ClaimsIdentity(GetClaimsIdentity(token));
            context.User.AddIdentity(claims);
            context.GetSession().SetString(SwaggerJwt, token);
        }

        private static IEnumerable<Claim> GetClaimsIdentity(string token)
        {
            var jwtHandler = new JwtSecurityTokenHandler();
            // token校验
            if (token.IsNotEmptyOrNull() && jwtHandler.CanReadToken(token))
            {
                var jwtToken = jwtHandler.ReadJwtToken(token);

                return jwtToken.Claims;
            }

            return new List<Claim>();
        }

        public static string GetSuccessSwaggerJwt(this HttpContext context)
        {
            return context.GetSession().GetString(SwaggerJwt);
        }


        public static void RedirectSwaggerLogin(this HttpContext context)
        {
            var returnUrl = context.Request.GetDisplayUrl(); //获取当前url地址 
            context.Response.Redirect("/swg-login.html?returnUrl=" + returnUrl);
        }
    }
}