MOBILE_API/Business/KftcPasswordRule/IdNumberRule.cs

namespace Business.KftcPasswordRule
{
    /// <summary>
    /// </summary>
    public class IdNumberRule : PasswordRule
    {
        /// <summary>
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public PasswordValidationResult Validate(ValidationModel model)
        {
            if (model.IdType.ToLower() == "passport")
            {
                if (model.Password.Contains(model.IdNumber))
                {
                    return new PasswordValidationResult { IsValid = false, Message = "Password can not be same as id Number!" };
                }
            }
            string idFirstPart = model.IdNumber.Substring(0, 6);
            string idSecondPart = model.IdNumber.Substring(6, model.IdNumber.Length - 6);
            if (model.Password.Contains(idFirstPart))
            {
                return new PasswordValidationResult { IsValid = false, Message = "Password can not be same as id Number!" };
            }
            if (model.Password.Contains(idSecondPart))
            {
                return new PasswordValidationResult { IsValid = false, Message = "Password can not be same as id Number!" };
            }
            return new PasswordValidationResult { IsValid = true, Message = "valid" };
        }
    }
}