using Microsoft.Extensions.Caching.Distributed;
using OASystem.Infrastructure.Repositories.Login;
using System.IdentityModel.Tokens.Jwt;
using System.Security.Claims;
using StackExchange.Redis;
using OASystem.Domain.Dtos.UserDto;
using OASystem.RedisRepository;
using OASystem.RedisRepository.RedisAsyncHelper;
using Google.Protobuf.WellKnownTypes;

namespace OASystem.API.Controllers
{
    /// <summary>
    /// 鉴权相关
    /// </summary>
    [Route("api/")]
    public class AuthController : ControllerBase
    {
        private readonly IMapper _mapper;
        private readonly IConfiguration _config;
        private readonly LoginRepository _loginRep;
        //private IDatabase _redis;
        //private RedisHelper _redisHelper;
        public AuthController(IConfiguration config, LoginRepository loginRep, IMapper mapper)
        {
            _config = config;
            _loginRep = loginRep;
            _mapper = mapper;
        }

        /// <summary>
        /// 用户登录
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        [Route("login")]
        [HttpPost]
        [ProducesResponseType(typeof(LoginView), StatusCodes.Status200OK)]
        public async Task<IActionResult> LoginAsync(LoginDto dto)
        {
            #region 校验用户信息 
            var userData = _loginRep.Login(dto);
            if (userData.Result.Code != 0)
            {
                return Ok(JsonView(false, userData.Result.Msg));
            }

            #endregion
            string userToken = dto.Number + "Token";
            string userTokenString = await RedisRepository.RedisFactory.CreateRedisRepository().StringGetAsync<string>(userToken);//string 取

            if (userTokenString != null)
            {
                var lifeTime = new JwtSecurityTokenHandler().ReadToken(userTokenString).ValidTo;


                var redisView = new LoginView
                {
                    //Expires = createTokenDt.AddMinutes(30),
                    UserInfo = userData.Result.Data,
                    Token = userTokenString
                };
                return Ok(JsonView(redisView));
            }
            



            DateTime createTokenDt = DateTime.Now;
            var view = new LoginView
            {
                Expires = createTokenDt.AddMinutes(30),
                UserInfo = userData.Result.Data
            };

            var claims = new[] { new Claim(ClaimTypes.NameIdentifier, "Future") };
            var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_config["JwtSecurityKey"]));
            var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
            var token = new JwtSecurityToken(
                issuer: "OASystem.com",
                audience: "OASystem.com",
                claims: claims,
                expires: view.Expires,
                signingCredentials: creds);
            view.Token = new JwtSecurityTokenHandler().WriteToken(token);

            
            TimeSpan ExpiresTimeSpan = view.Expires - createTokenDt;

            //Redis  String使用示例
            TimeSpan ts = new TimeSpan(0, 30, 0);
            await RedisRepository.RedisFactory.CreateRedisRepository().StringSetAsync<string>(userToken, view.Token, ExpiresTimeSpan);//string 存
            

            return Ok(JsonView(view));
        }

        /// <summary>
        /// 申请注册
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        [Authorize]
        [HttpPost]
        [Route("register")]
        public async Task<IActionResult> Register(RegisterDto dto)
        {
            var userData = _loginRep.Register(_loginRep, dto);
            if (userData.Result.Code != 0)
            {
                if (userData.Result.Code != 0) { return Ok(JsonView(false, userData.Result.Msg)); }

                return Ok(JsonView(false, "注册失败!"));
            }

            return Ok(new { Code = 0, Msg = userData.Result.Msg });
        }

        /// <summary>
        /// 修改密码
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        [Authorize]
        [HttpPost]
        [Route("UpdPassword")]
        public async Task<IActionResult> UpdateUserPassword(UpdateDto dto)
        {
            Result result = new Result();

            Sys_Users sys_Users = _mapper.Map<Sys_Users>(dto);
            var _UpdateState = await _loginRep.UpdateAsync(s => s.Id == dto.UserId, ss => sys_Users);
            if (_UpdateState)
            {
                result.Code = 0;
                result.Msg = "申请成功!人事主管审核后且信息部经理分配了登录账号,可登录OA!";
            }
            else
            {
                result.Code = -2;
                result.Msg = "用户修改失败!";
            }


            return Ok(JsonView(result));
        }

        /// <summary>
        /// 测试auth
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        [Authorize]
        [HttpPost("TestToken")]
        [ProducesResponseType(typeof(LoginView), StatusCodes.Status200OK)]
        public async Task<IActionResult> TestToken(LoginDto dto)
        {
            string authorId = dto.Number + "Token";
            // 从Redis里面取数据
            //string userToken = _redis.StringGet(authorId);
            string userToken = "";
            var view = new LoginView
            {
                Token = authorId + ":" + userToken
            };

            return Ok(JsonView(view));
        }
    }
}