using Azure;
using Azure.Core;
using Furion;
using Furion.FriendlyException;
using Furion.HttpRemote;
using Furion.Shapeless;
using Mapster;
using Microsoft.Extensions.Caching.Distributed;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;

namespace FlexJobApi.Core
{
    public interface IResourceHttpProvider
    {
        HttpRequestBuilder AddAuthentication(HttpRequestBuilder builder);
        Task<TResponse> SendAsAsync<TResponse>(IHttpRemoteService httpRemoteService, HttpRequestBuilder builder);
        Task<string> SendAsStringAsync(IHttpRemoteService httpRemoteService, HttpRequestBuilder builder);
    }

    public class DefaultResourceHttpProvider : IResourceHttpProvider
    {
        public HttpRequestBuilder AddAuthentication(HttpRequestBuilder builder)
        {
            var token = App.HttpContext.Request.Headers["Authorization"].ToString();
            var refreshToken = App.HttpContext.Request.Headers["X-Authorization"].ToString();
            return builder
                .AddAuthentication(new AuthenticationHeaderValue("Authorization", token))
                .AddAuthentication(new AuthenticationHeaderValue("X-Authorization", refreshToken));
        }

        public async Task<TResponse> SendAsAsync<TResponse>(IHttpRemoteService httpRemoteService, HttpRequestBuilder builder)
        {
            return await httpRemoteService.SendAsAsync<TResponse>(builder);
        }

        public async Task<string> SendAsStringAsync(IHttpRemoteService httpRemoteService, HttpRequestBuilder builder)
        {
            return await httpRemoteService.SendAsStringAsync(builder);
        }
    }

    public class TokenDataModel
    {
        /// <summary>
        /// 用户访问令牌
        /// </summary>
        public string AccessToken { get; set; }

        /// <summary>
        /// 刷新令牌
        /// </summary>
        public string RefreshToken { get; set; }
    }

    public class SystemUserResourceHttpProvider : IResourceHttpProvider
    {
        public HttpRequestBuilder AddAuthentication(HttpRequestBuilder builder)
        {
            var token = GetToken();
            return builder
                .WithHeader("Authorization", "Bearer " + token.AccessToken)
                .WithHeader("X-Authorization", "Bearer " + token.RefreshToken);
        }

        public async Task<TResponse> SendAsAsync<TResponse>(IHttpRemoteService httpRemoteService, HttpRequestBuilder builder)
        {
            var response = await httpRemoteService.SendAsAsync<TResponse>(builder);
            return response;
        }

        public async Task<string> SendAsStringAsync(IHttpRemoteService httpRemoteService, HttpRequestBuilder builder)
        {
            var response = await httpRemoteService.SendAsStringAsync(builder);
            try
            {
                var result = response.JsonTo(new
                {
                    Code = 0
                });
                if (result.Code == 401)
                {
                    var token = GetToken(true);
                    builder = builder
                        .WithHeader("Authorization", "Bearer " + token.AccessToken)
                        .WithHeader("X-Authorization", "Bearer " + token.RefreshToken);
                    response = await httpRemoteService.SendAsStringAsync(builder);
                }
            }
            catch { }
            return response;
        }

        private TokenDataModel GetToken(bool recache = false)
        {
            var distributedCache = App.GetRequiredService<IDistributedCache>();
            var token = distributedCache.GetString("SystemUserToken");
            if (token == null || recache)
            {
                var logier = new CurrentLogier
                {
                    Id = new Guid("11111111-1111-1111-1111-111111111111"),
                    Name = "管理员",
                    UserName = "system",
                    Type = EnumUserType.Operation,
                    ClientType = EnumClientType.PcWeb,
                    Level = 999,
                };
                JwtUtils.GenerateToken(logier);
                token = logier.Adapt<TokenDataModel>().ToJson();
                distributedCache.SetString("SystemUserToken", token, new DistributedCacheEntryOptions
                {
                    AbsoluteExpiration = DateTime.Now.AddMinutes(60 * 23)
                });
            }
            var tokenData = token.JsonTo<TokenDataModel>();
            return tokenData;
        }
    }
}