using System;
using System.Linq;
using System.Text.RegularExpressions;

namespace Shared
{
    public class CommonUtlis
    {
        #region ■ 变量声明___________________________

        /// <summary>
        /// 通用方法
        /// </summary>
        private static CommonUtlis m_Current = null;
        /// <summary>
        /// 通用方法
        /// </summary>
        public static CommonUtlis Current {
            get {
                if (m_Current == null) {
                    m_Current = new CommonUtlis ();
                }
                return m_Current;
            }
        }

        #endregion

        #region ■ 各种正确检测_______________________

        /// <summary>
        /// 用于中国大陆验证手机号正则表达式
        /// </summary>
        public static string PhoneRegexStr = "^[1][0-9]{10}$";
        /// <summary>
        /// 用于验证非中国大陆手机号正则表达式
        /// </summary>
        public static string PhoneForForeignRegexStr = "^[0-9]*$";
        /// <summary>
        /// 用于验证邮箱正则表达式
        /// </summary>
        public static string EmailRegexStr = "^\\s*([A-Za-z0-9_-]+(\\.\\w+)*@(\\w+\\.)+\\w{2,5})\\s*$";
        /// <summary>
        /// 用于密码强度正则表达式
        /// 密码必须为8-20个字符，包含字母、数字和符号
        /// </summary>
        public static string PasswordRegexStr = "^(?![0-9]+$)(?![a-zA-Z]+$)(?![0-9a-zA-Z]+$)(?![0-9\\W]+$)(?![a-zA-Z\\W]+$)[0-9A-Za-z\\W]{8,20}$";


        /// <summary>
        /// 判断是否包含大写字母
        /// </summary>
        /// <returns><c>true</c>, if contain upper was checked, <c>false</c> otherwise.</returns>
        /// <param name="value">Value.</param>
        public bool CheckContainUpper (string value)
        {
            Regex reg = new Regex ("[A-Z]+");
            return reg.IsMatch (value);
        }

        /// <summary>
        /// 判断是否包含小写字母
        /// </summary>
        /// <returns><c>true</c>, if contain lower was checked, <c>false</c> otherwise.</returns>
        /// <param name="value">Value.</param>
        public bool CheckContainLower (string value)
        {
            Regex reg = new Regex ("[a-z]+");
            return reg.IsMatch (value);
        }

        /// <summary>
        /// 判断是否包含数字
        /// </summary>
        /// <returns><c>true</c>, if contain lower was checked, <c>false</c> otherwise.</returns>
        /// <param name="value">Value.</param>
        public bool CheckContainNum (string value)
        {
            Regex reg = new Regex ("[0-9]+");
            return reg.IsMatch (value);
        }

        /// <summary>
        /// 判断是否包含符号
        /// </summary>
        /// <returns><c>true</c>, if contain lower was checked, <c>false</c> otherwise.</returns>
        /// <param name="value">Value.</param>
        public bool CheckContainSymbol (string value)
        {
            Regex reg = new Regex ("([^a-z0-9A-Z])+");
            return reg.IsMatch (value);
        }

        /// <summary>
        /// 检测邮箱是否合法
        /// </summary>
        /// <param name="email"></param>
        /// <returns></returns>
        public bool CheckEmail (string email)
        {
            Regex reg = new Regex (EmailRegexStr);
            return reg.IsMatch (email);
        }

        /// <summary>
        /// 检测手机号是否合法
        /// </summary>
        /// <param name="phoneNumber">手机号</param>
        /// <param name="areaCode">地区代码</param>
        /// <returns></returns>
        public bool CheckPhoneNumber (string phoneNumber, string areaCode)
        {
            //校验外国手机号
            if (areaCode != "86") {
                Regex reg = new Regex (PhoneForForeignRegexStr);
                return reg.IsMatch (phoneNumber);
            }

            //校验国内手机号
            if (phoneNumber.Length > 11) {
                return false;
            } else if (phoneNumber.Length == 11) {
                Regex reg = new Regex (PhoneRegexStr);
                return reg.IsMatch (phoneNumber);
            } else {
                //正则表达式判断是否数字
                Regex reg = new Regex ("^[0-9]*$");
                return reg.IsMatch (phoneNumber);
            }
        }

        /// <summary>
        /// 检测密码是否合法
        /// </summary>
        /// <param name="password"></param>
        /// <returns></returns>
        public bool CheckPassword (string password)
        {
            Regex reg = new Regex (PasswordRegexStr);
            return reg.IsMatch (password);
        }

        #endregion


       
    }
}