using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows.Controls;

namespace HxUserManagement.Classes
{
    public class RegisterValidationRule : ValidationRule
    {
        private ValidationOutput validationOutput = null;
        public ValidationOutput ValidationOutput
        {
            get { return validationOutput; }
            set { validationOutput = value; }
        }
        private string validateType;

        public string ValidateType
        {
            get { return validateType; }
            set { validateType = value; }
        }

        public bool IsLegalPhoneNumber(string phoneNumber)
        {
            string phone = phoneNumber.Trim();
            if (phone.Length == 11)
                return Regex.IsMatch(phone, @"^0?(13[0-9]|14[5-9]|15[012356789]|166|17[0-8]|18[0-9]|19[89])[0-9]{8}$");
            else
                return false; 
        }

        public bool IsLegalEmail(string email)
        {
            bool isValid = Regex.IsMatch(email, @"^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$");
            return isValid;
        }

        public override ValidationResult Validate(object value, CultureInfo cultureInfo)
        {
            if (ValidateType == "UserName")
            {
                string s = (string)value;
                if (string.IsNullOrEmpty(s.Trim()))
                {
                    ValidationOutput.IsNickNameValid = false;
                    ValidationOutput.IsAllValid = false;
                    ValidationOutput.ErrorMsg4NickName = Properties.Resources.strUserNameCannotEmpty;
                    return new ValidationResult(false, Properties.Resources.strUserNameCannotEmpty);
                }
                else
                {
                    ValidationOutput.IsNickNameValid = true;
                    ValidationOutput.IsAllValid = true;
                    return new ValidationResult(true, null);
                }

            }
            else if (ValidateType == "PhoneNumber")
            {
                string s = (string)value;
                if (!string.IsNullOrEmpty(s.Trim()))
                {
                    if (s.Length < 11)
                    {
                        ValidationOutput.IsPhoneNumberValid = false;
                        ValidationOutput.IsAllValid = false;
                        ValidationOutput.ErrorMsg4PhoneNumber = "电话号码长度有误";
                        return new ValidationResult(false, "电话号码长度有误");
                    }
                    if (!IsLegalPhoneNumber(s))
                    {
                        //ValidationOutput.IsShow4PhoneNumber = true;
                        ValidationOutput.IsPhoneNumberValid = false;
                        ValidationOutput.IsAllValid = false;
                        ValidationOutput.ErrorMsg4PhoneNumber = "电话号码格式不正确";
                        return new ValidationResult(false, "电话号码格式不正确");
                    }
                }
                else
                {
                    ValidationOutput.IsShow4PhoneNumber = false;
                    ValidationOutput.IsPhoneNumberValid = true;
                    ValidationOutput.IsAllValid = true;
                    return new ValidationResult(true, null);
                }
            }
            else if (ValidateType == "Password")
            {
                string myPassword = (string)value;
                ValidationOutput.Password = myPassword;//Store the password in a global resource, used for validating the confirm password
                if (myPassword.Length < 6)
                {
                    ValidationOutput.IsPasswordValid = false;
                    ValidationOutput.IsAllValid = false;
                    ValidationOutput.ErrorMsg4Password = "密码长度应大于6个字符";
                    return new ValidationResult(false, "密码长度应大于6个字符");
                }
                else
                {
                    ValidationOutput.IsPasswordValid = true;
                    ValidationOutput.IsAllValid = true;
                    return new ValidationResult(true, null);
                }
            }
            else if (ValidateType == "ConfirmPassword")
            {
                string myConfirmPassword = (string)value;
                string myPassword = ValidationOutput.Password;
                if (myPassword != myConfirmPassword)
                {
                    ValidationOutput.IsConfirmPasswordValid = false;
                    ValidationOutput.IsAllValid = false;
                    ValidationOutput.ErrorMsg4ConfirmPassword = "密码不一样";
                    return new ValidationResult(false, "密码不一样");
                }
                else
                {
                    ValidationOutput.IsConfirmPasswordValid = true;
                    ValidationOutput.IsAllValid = true;
                    return new ValidationResult(true, null);
                }
            }
            else if(ValidateType == "Email")
            {
                string email = (string)value;
                if (!string.IsNullOrEmpty(email.Trim()))
                {
                     // 检查输入的字符串是否符合Email格式
                    if(!IsLegalEmail(email.Trim()))
                    {
                        ValidationOutput.IsEmailvalid = false;
                        ValidationOutput.IsAllValid = false;
                        ValidationOutput.ErrorMsg4Email = "Email格式不正确";
                        return new ValidationResult(false, "Email格式不正确");
                    }
                }
                else
                {
                    ValidationOutput.IsNickNameValid = true;
                    ValidationOutput.IsAllValid = true;
                    return new ValidationResult(true, null);
                }

            }
            return new ValidationResult(true, null);
        }
    }
}