using ERP.Core.Entity;
using ERP.Core.Interface;
using ERP.Core.Repository;
using ERP.Core.Resource;
using ERP.Framework.Cache;
using ERP.Framework.Config;
using ERP.Framework.Constants;
using ERP.Framework.Enum;
using ERP.Framework.Security.Core;
using ERP.Framework.Utils;
using Microsoft.Extensions.Localization;

namespace ERP.Core.Service
{
    public class AuthService : IAuthService
    {
        private readonly IStringLocalizer<AuthI18N> _localizer;
        private readonly SysUserRepository _sysUserRepository;
        private readonly SysRoleRepository _sysRoleRepository;
        private readonly SysMenuRepository _sysMenuRepository;

        public AuthService(IStringLocalizer<AuthI18N> localizer, SysUserRepository sysUserRepository, SysRoleRepository sysRoleRepository, SysMenuRepository sysMenuRepository)
        {
            _localizer = localizer;
            this._sysUserRepository = sysUserRepository;
            this._sysRoleRepository = sysRoleRepository;
            this._sysMenuRepository = sysMenuRepository;
        }

        /// <summary>
        /// 获取登录用户
        /// </summary>
        /// <param name="securityConfig">设置</param>r
        /// <param name="loginName">用户名</param>
        /// <param name="password">密码</param>
        /// <param name="deviceKey">设备唯一值</param>
        /// <returns></returns>
        /// <exception cref="Exception"></exception>
        public LoginUser GetLoginUser(
            SecurityConfig securityConfig
            , string loginName
            , string password)
        {
            var user = _sysUserRepository.FirstOrDefault(t => t.UserName == loginName);

            if (user == null)
            {
                throw new Exception(string.Format(_localizer["User.NotExist"], loginName));
            }

            CheckUserStatus(user);

            CheckLogin(securityConfig, password, user);

            var roleList = _sysRoleRepository.SelectRoleListByUserId(user.Id);
            var roleKeyList = roleList.Select(t => t.RoleKey).ToList();
            var permissions = new List<string>();

            if (roleList.Any(t => t.RoleKey == FrameworkConstant.ADMIN))
            {
                permissions.Add(FrameworkConstant.ADMIN_PERMISSION);
            }
            else
            {
                var roleIds = roleList.Select(t => t.Id).ToList();
                permissions = _sysMenuRepository.SelectPermissionsByRoleIds(roleIds);
            }

            return new LoginUser()
            {
                UserId = user.Id,
                UserName = user.UserName,
                Avatar = user.Avatar,
                Email = user.Email,
                UserStatus = user.UserStatus,
                RoleKeys = roleKeyList,
                Permission = permissions
            };
        }

        private void CheckUserStatus(SysUser user)
        {
            if (user.UserStatus == StatusEnum.Enable)
            {
                return;
            }
            else if (user.UserStatus == StatusEnum.Disable)
            {
                throw new Exception(string.Format(_localizer["User.Bloked"], user.UserName));
            }
        }

        private void CheckLogin(SecurityConfig securityConfig, string password, SysUser loginUser)
        {
            var passwordErrorRedisKey = AuthConstant.PASSWORD_ERROR + IPUtil.GetClientIp();
            var errorNumber = RedisHelper.Get(passwordErrorRedisKey);
            var hasErrorRedis = !errorNumber.IsNullOrEmpty();

            if (hasErrorRedis && errorNumber.ToInt() >= securityConfig.MaxRetryCount)
            {
                // Todo 记录登录信息(超出限制期间登录)
                throw new Exception(string.Format(_localizer["User.Password.RetryLimitExceed"], errorNumber, securityConfig.LockTime));
            }

            var isLogin = CryptoUtil.BCValify(password, loginUser.Password);

            if (!isLogin)
            {
                if (!hasErrorRedis)
                {
                    RedisHelper.SaveExpire(passwordErrorRedisKey, AuthConstant.FIRST_PASSWORD_ERROR, securityConfig.LockTime);
                }
                else
                {
                    var number = int.Parse(errorNumber) + 1;
                    RedisHelper.Save(passwordErrorRedisKey, number.ToString());
                }

                throw new Exception(_localizer["User.Password.Error"]);
            }

            if (hasErrorRedis)
            {
                RedisHelper.Delete(passwordErrorRedisKey);
            }
        }
    }
}