public static bool ChangePassword(ResetPasswordDto resetPassVm)
 {
     return AccountDao.Instance.ResetPassword(resetPassVm);
 }
        public bool ResetPassword(ResetPasswordDto resetPassVm)
        {
            User user = _db.Users.
                FirstOrDefault(x => x.Email == resetPassVm.Email 
                && x.ResetPassword == resetPassVm.ResetCode);
            if (user != null)
            {
                try
                {
                    var hash = Encoding.ASCII.GetBytes("san" + resetPassVm.Password);
                    var sha1 = new SHA1CryptoServiceProvider();
                    byte[] sha1Hash = sha1.ComputeHash(hash);
                    var hashedPassword = Encoding.ASCII.GetString(sha1Hash);

                    user.Password = hashedPassword;
                    _db.SaveChanges();
                    return true;
                }
                catch (Exception)
                {
                    return false;
                }
            }
            return false;
        }