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

namespace MES.Utility.Core
{
    public static class Checker
    {
        #region 验证IP
        /// <summary>
        /// 验证IP
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsIP(this string source)
        {
            return Regex.IsMatch(source, @"^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$", RegexOptions.IgnoreCase);
        }
        public static bool HasIP(this string source)
        {
            return Regex.IsMatch(source, @"(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])", RegexOptions.IgnoreCase);
        }
        #endregion

        #region  验证EMail是否合法
        /// <summary>
        /// 验证EMail是否合法
        /// </summary>
        /// <param name="email">要验证的Email</param>
        public static bool IsEmail(this string source)
        {
            return Regex.IsMatch(source, @"^[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})$", RegexOptions.IgnoreCase);
        }
        public static bool HasEmail(this string source)
        {
            return Regex.IsMatch(source, @"[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})", RegexOptions.IgnoreCase);
        }
        #endregion

        #region 验证网址
        /// <summary>
        /// 验证网址
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsUrl(this string source)
        {
            return Regex.IsMatch(source, @"^(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&amp;%_\./-~-]*)?$", RegexOptions.IgnoreCase);
        }
        public static bool HasUrl(this string source)
        {
            return Regex.IsMatch(source, @"(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&amp;%_\./-~-]*)?", RegexOptions.IgnoreCase);
        }
        #endregion

        #region 验证日期
        /// <summary>
        /// 验证日期
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsDateTime(this string source)
        {
            try
            {
                DateTime time = Convert.ToDateTime(source);
                return true;
            }
            catch
            {
                return false;
            }
        }
        #endregion


        #region 验证手机号
        /// <summary>
        /// 验证手机号
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsMobile(this string source)
        {
            return Regex.IsMatch(source, @"^1[35678]\d{9}$", RegexOptions.IgnoreCase);
        }
        public static bool HasMobile(this string source)
        {
            return Regex.IsMatch(source, @"1[35678]\d{9}", RegexOptions.IgnoreCase);
        }
        #endregion

        #region 验证身份证是否有效
        /// <summary>
        /// 验证身份证是否有效
        /// </summary>
        /// <param name="Id"></param>
        /// <returns></returns>
        public static bool IsIDCard(this string Id)
        {
            if (Id.Length == 18)
            {
                bool check = IsIDCard18(Id);
                return check;
            }
            else if (Id.Length == 15)
            {
                bool check = IsIDCard15(Id);
                return check;
            }
            else
            {
                return false;
            }
        }
        public static bool IsIDCard18(this string Id)
        {
            long n = 0;
            if (long.TryParse(Id.Remove(17), out n) == false || n < Math.Pow(10, 16) || long.TryParse(Id.Replace('x', '0').Replace('X', '0'), out n) == false)
            {
                return false;//数字验证
            }
            string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
            if (address.IndexOf(Id.Remove(2)) == -1)
            {
                return false;//省份验证
            }
            string birth = Id.Substring(6, 8).Insert(6, "-").Insert(4, "-");
            DateTime time = new DateTime();
            if (DateTime.TryParse(birth, out time) == false)
            {
                return false;//生日验证
            }
            string[] arrVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(',');
            string[] Wi = ("7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2").Split(',');
            char[] Ai = Id.Remove(17).ToCharArray();
            int sum = 0;
            for (int i = 0; i < 17; i++)
            {
                sum += int.Parse(Wi[i]) * int.Parse(Ai[i].ToString());
            }
            int y = -1;
            Math.DivRem(sum, 11, out y);
            if (arrVarifyCode[y] != Id.Substring(17, 1).ToLower())
            {
                return false;//校验码验证
            }
            return true;//符合GB11643-1999标准
        }
        public static bool IsIDCard15(this string Id)
        {
            long n = 0;
            if (long.TryParse(Id, out n) == false || n < Math.Pow(10, 14))
            {
                return false;//数字验证
            }
            string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
            if (address.IndexOf(Id.Remove(2)) == -1)
            {
                return false;//省份验证
            }
            string birth = Id.Substring(6, 6).Insert(4, "-").Insert(2, "-");
            DateTime time = new DateTime();
            if (DateTime.TryParse(birth, out time) == false)
            {
                return false;//生日验证
            }
            return true;//符合15位身份证标准
        }
        #endregion



        #region 是不是Int型的
        /// <summary>
        /// 是不是Int型的
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsInt(this string source)
        {
            Regex regex = new Regex(@"^(-){0,1}\d+$");
            if (regex.Match(source).Success)
            {
                if ((long.Parse(source) > 0x7fffffffL) || (long.Parse(source) < -2147483648L))
                {
                    return false;
                }
                return true;
            }
            return false;
        }
        #endregion

        #region 看字符串的长度是不是在限定数之间 一个中文为两个字符
        /// <summary>
        /// 看字符串的长度是不是在限定数之间 一个中文为两个字符
        /// </summary>
        /// <param name="source">字符串</param>
        /// <param name="begin">大于等于</param>
        /// <param name="end">小于等于</param>
        /// <returns></returns>
        public static bool IsLengthStr(this string source, int begin, int end)
        {
            int length = Regex.Replace(source, @"[^\x00-\xff]", "OK").Length;
            if ((length <= begin) && (length >= end))
            {
                return false;
            }
            return true;
        }
        #endregion

        #region 是不是中国电话，格式010-85849685
        /// <summary>
        /// 是不是中国电话，格式010-85849685
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsTel(this string source)
        {
            return Regex.IsMatch(source, @"^\d{3,4}-?\d{6,8}$", RegexOptions.IgnoreCase);
        }
        #endregion

        #region 邮政编码 6个数字
        /// <summary>
        /// 邮政编码 6个数字
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsPostCode(this string source)
        {
            return Regex.IsMatch(source, @"^\d{6}$", RegexOptions.IgnoreCase);
        }
        #endregion
        #region 中文
        /// <summary>
        /// 中文
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsChinese(this string source)
        {
            return Regex.IsMatch(source, @"^[\u4e00-\u9fa5]+$", RegexOptions.IgnoreCase);
        }
        public static bool hasChinese(this string source)
        {
            return Regex.IsMatch(source, @"[\u4e00-\u9fa5]+", RegexOptions.IgnoreCase);
        }
        #endregion

        #region 验证是不是正常字符 字母，数字，下划线的组合
        /// <summary>
        /// 验证是不是正常字符 字母，数字，下划线的组合
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsNormalChar(this string source)
        {
            return Regex.IsMatch(source, @"[\w\d_]+", RegexOptions.IgnoreCase);
        }
        #endregion

        #region 验证用户名：必须以字母开头，可以包含字母、数字、“_”、“.”，至少5个字符
        /// <summary>
        /// 验证用户名：必须以字母开头，可以包含字母、数字、“_”、“.”，至少5个字符
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool checkUserId(this string str)
        {
            Regex regex = new Regex("[a-zA-Z]{1}([a-zA-Z0-9]|[._]){4,19}");
            if (regex.Match(str).Success)
                if (regex.Matches(str)[0].Value.Length == str.Length)
                    return true;
            return false;
        }
        #endregion

        /// <summary>
        /// 是否是Base64字符串
        /// </summary>
        /// <param name="eStr"></param>
        /// <returns></returns>
        public static bool IsBase64(string eStr)
        {
            if ((eStr.Length % 4) != 0)
            {
                return false;
            }
            if (!Regex.IsMatch(eStr, "^[A-Z0-9/+=]*$", RegexOptions.IgnoreCase))
            {
                return false;
            }
            return true;
        }

        #region 验证是否为小数
        public static bool IsValidDecimal(this string strIn)
        {
            return Regex.IsMatch(strIn, @"[0].d{1,2}|[1]");
        }
        #endregion
        #region 验证年月日
        public static bool IsValidDate(this string strIn)
        {
            return Regex.IsMatch(strIn, @"^2d{3}-(?:0?[1-9]|1[0-2])-(?:0?[1-9]|[1-2]d|3[0-1])(?:0?[1-9]|1d|2[0-3]):(?:0?[1-9]|[1-5]d):(?:0?[1-9]|[1-5]d)$");
        }
        #endregion
        #region 验证日期格式
        //检察是否正确的日期格式
        public static bool IsDate(this string str)
        {
            //考虑到了4年一度的366天，还有特殊的2月的日期
            Regex reg = new Regex(@"^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-)) (20|21|22|23|[0-1]?\d):[0-5]?\d:[0-5]?\d$");
            return reg.IsMatch(str);
        }
        #endregion
        #region 验证后缀名
        public static bool IsValidPostfix(this string strIn)
        {
            return Regex.IsMatch(strIn, @".(?i:gif|jpg)$");
        }
        #endregion
        #region 验证字符是否在4至12之间
        public static bool IsValidByte(this string strIn)
        {
            return Regex.IsMatch(strIn, @"^[a-z]{4,12}$");
        }
        #endregion
        #region 判断字符串是否为数字
        /// <summary>
        /// 判断字符串是否为数字
        /// </summary>
        /// <param name="str">待验证的字符窜</param>
        /// <returns>bool</returns>
        public static bool IsNumber(this string str)
        {
            bool result = true;
            foreach (char ar in str)
            {
                if (!char.IsNumber(ar))
                {
                    result = false;
                    break;
                }
            }
            return result;
        }
        #endregion
        #region 是否为数字型
        /// <summary>
        /// 是否为数字型
        /// </summary>
        /// <param name="strNumber"></param>
        /// <returns></returns>
        public static bool IsDecimal(this string strNumber)
        {
            return new System.Text.RegularExpressions.Regex(@"^([0-9])[0-9]*(\.\w*)?$").IsMatch(strNumber);
        }
        #endregion
        #region 验证是否包含汉语/全部汉语
        /// <summary>
        /// 验证是否包含汉语
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsHanyu(this string str)
        {
            Regex regex = new Regex("[\u4e00-\u9fa5]");
            if (regex.Match(str).Success)
                return true;
            else
                return false;
        }
        /// <summary>
        /// 验证是否全部汉语
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsHanyuAll(this string str)
        {
            Regex regex = new Regex("[\u4e00-\u9fa5]");
            //匹配的内容长度和被验证的内容长度相同时，验证通过
            if (regex.Match(str).Success)
                if (regex.Matches(str).Count == str.Length)
                    return true;
            //其它，未通过
            return false;
        }
        #endregion
    }
}
