using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace Core.Mes.Client.Comm.Tool
{
    /// <summary>
    /// 字符串处理工具
    /// </summary>
    public class StringUtil
    {
        /// <summary>
        /// 校验字符串是否只包含字母与数字
        /// </summary>
        /// <param name="toVerified">需要校验的字符串</param>
        /// <returns>true表示符合要求，false表示不符合要求</returns>
        public static bool IsOnlyLetterAndDigit(string toVerified)
        {
            Regex rx = new Regex(@"^[a-zA-Z0-9-]*$");
            return rx.IsMatch(toVerified.Trim(), 0);
        }

        /// <summary>
        /// 检验是否是整数
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为整数：true是整数，false非整数</returns>
        public static bool IsInt(string str)
        {
            Regex rx = new Regex(@"^[0123456789]+$");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 检验是否是整数(庹建勇)
        /// </summary>
        /// <param name="sVal"></param>
        /// <returns></returns>
        public static bool IsInt32(string sVal)
        {
            try
            {
                Int32.Parse(sVal);
                return true;
            }
            catch
            {
                return false;
            }
        }

        /// <summary>
        /// 检验是否是整数(WHB) 可以验证类似与12.0 12.00形式的字符串
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为整数：true是整数，false非整数</returns>
        public static bool IsInteger(string str)
        {
            Regex rx = new Regex(@"^-?[1-9]\d*[.]{0,1}[0]*$");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 校验是否为正的浮点数
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为正浮点，是返回true，否则返回false</returns>
        public static bool IsFloat(string str)
        {
            Regex rx = new Regex(@"^[0-9]*(.)?[0-9]+$", RegexOptions.IgnoreCase);
            return rx.IsMatch(str.Trim());
        }

        /// <summary>
        /// 验证浮点数
        /// </summary>
        /// <param name="sVal"></param>
        /// <returns></returns>
        public static bool IsDouble(string sVal)
        {
            try
            {
                Double.Parse(sVal);
                return true;
            }
            catch
            {
                return false;
            }

        }

        /// <summary>
        /// 检验是否为数字
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为数字：true代表是，false代表否</returns>
        public static bool IsNumber(string str)
        {

            Regex rx = new Regex(@"^[+-]?[0123456789]*[.]?[0123456789]*$");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 检验字符串是否为日期时间
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为日期时间：true代表是，false代表否</returns>
        public static bool IsNotDateTime(string str)
        {
            DateTime dt = new DateTime();
            return (!(DateTime.TryParse(str, out dt)));
        }

        /// <summary>
        /// 检验字符串是否为邮政编码
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为邮政编码：true代表是，false代表否</returns>
        public static bool IsPostCode(string str)
        {
            Regex rx = new Regex(@"^[0123456789]{6}$");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 检验字符串是否为身份证号
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为身份证号：true代表是，false代表否</returns>
        public static bool IsCode(string str)
        {
            Regex rx = new Regex(@"^[0123456789]{15,18}$");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 检验字符串是否为电子邮件
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为电子邮件：true代表是，false代表否</returns>
        public static bool IsEMail(string str)
        {
            Regex rx = new Regex(@"w+([-+.]w+)*@w+([-.]w+)*.w+([-.]w+)*");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 检验字符串是否为中国地区的电话号码
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为中国地区的电话号码：true代表是，false代表否</returns>
        public static bool IsPhoneNumber(string str)
        {
            Regex rx = new Regex(@"((d{3,4})|d{3,4}-)?d{7,8}(-d{3})*");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 检验字符串是否为汉字
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为汉字：true代表是，false代表否</returns>
        public static bool IsChinese(string str)
        {
            Regex rx = new Regex(@"u4e00-u9fa5");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 检验字符串是否为双字节字符(包括汉字)
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为双字节字符：true代表是，false代表否</returns>
        public static bool IsDoubleByteChar(string str)
        {
            Regex rx = new Regex(@"[^x00-xff]");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 检验字符串是否为URL地址
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为URL地址：true代表是，false代表否</returns>
        public static bool IsURLAddress(string str)
        {
            Regex rx = new Regex(@"[a-zA-z]+://[^s]*");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 检验字符串是否为IP地址
        /// </summary>
        /// <param name="str">需要检验的字符串</param>
        /// <returns>是否为IP地址：true代表是，false代表否</returns>
        public static bool IsIPAddress(string str)
        {
            Regex rx = new Regex(@"d+.d+.d+.d+");
            return rx.IsMatch(str);
        }

        /// <summary>
        /// 清除字符串中的HTML标签(对于复杂的嵌套标签有时不准确)
        /// </summary>
        /// <param name="toEvaluate">指定的要被处理的字符串</param>
        /// <returns>清除HTML标签后的字符串</returns>
        public static string RemoveHtmlTags(string toEvaluate)
        {
            Regex rx = new Regex(@"s/<[a-zA-Z/][^>]*>//g", RegexOptions.IgnoreCase);

            return rx.Replace(toEvaluate, "");
        }

        /// <summary>
        /// 判断输入的字符串是否完全匹配正则
        /// </summary>
        /// <param name="RegexExpression">正则表达式</param>
        /// <param name="str">待判断的字符串</param>
        /// <returns></returns>
        public static bool IsValiable(string RegexExpression, string str)
        {
            bool blResult = false;

            Regex rep = new Regex(RegexExpression, RegexOptions.IgnoreCase);

            //blResult = rep.IsMatch(str);
            Match mc = rep.Match(str);

            if (mc.Success)
            {
                if (mc.Value == str) blResult = true;
            }
            return blResult;
        }

        /// <summary>
        /// 字符串转是否能转换成非负数
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool Is_Below_zero(string str)
        {
            try
            {
                if (IsDouble(str) && double.Parse(str) > 0)
                    return true;
                else
                    return false;
            }
            catch
            {
                return false;
            }
        }

        /// <summary>
        /// 全单位修约(GB 8170-87)
        /// </summary>
        /// <param name="sOriVal">原始值</param>
        /// <param name="ten_interval">10的n次方修约间隔</param>
        /// <returns>修约后值</returns>
        public static string XYFullUnit(string sOriVal, sbyte ten_interval)
        {
            try
            {
                decimal interval = Convert.ToDecimal(Math.Pow(10, ten_interval));//修约间隔
                decimal d = decimal.Parse(sOriVal) / interval;
                bool isPlus = (d > 0);  //是否为正数
                d = Math.Abs(d);
                int i = (int)d;
                if ((d - i) < 0.5m)
                {
                    d = i * interval;
                }
                else if ((d - i) > 0.5m)
                {
                    d = (i + 1) * interval;
                }
                else  //(d-i) == 0.5m
                {
                    if ((i % 2) == 0)  //双数舍去
                        d = i * interval;
                    else  //单数进一
                        d = (i + 1) * interval;
                }

                if (!isPlus)
                    d = 0 - d;

                if (ten_interval >= 0)
                    return d.ToString();
                else
                    return ValWithDigits(d.ToString(), Math.Abs(ten_interval));
            }
            catch
            {
                return "";
            }
        }

        /// <summary>
        /// 保留指定位数小数
        /// </summary>
        /// <param name="sVal"></param>
        /// <param name="Digits"></param>
        /// <returns></returns>
        public static string ValWithDigits(string sVal, int Digits)
        {
            try
            {
                decimal d = decimal.Parse(sVal);
                string sFormat = "0";
                if (Digits > 0)
                {
                    sFormat += ".";
                    for (int i = 0; i < Digits; i++)
                        sFormat += "0";
                }
                return d.ToString(sFormat);
            }
            catch
            {
                return "";
            }
        }

        /// <summary>
        /// 值比对  sSign:符号,sMin:最小值,sMax:最大值,sRealVal:实际值
        /// </summary>
        /// <param name="sSign"></param>
        /// <param name="sMin"></param>
        /// <param name="sMax"></param>
        /// <param name="sRealVal"></param>
        /// <returns></returns>
        public static bool ValIsEligible(string sSign, string sMin, string sMax, string sRealVal)
        {
            try
            {
                switch (sSign)
                {
                    case ">":
                        return (double.Parse(sMin) < double.Parse(sRealVal));
                    case ">=":
                        return (double.Parse(sMin) <= double.Parse(sRealVal));
                    case "=":
                        if (IsDouble(sMin))
                            return (double.Parse(sMin) == double.Parse(sRealVal));
                        else
                            return (sMin == sRealVal);
                    case "<":
                        return (double.Parse(sMax) > double.Parse(sRealVal));
                    case "<=":
                        return (double.Parse(sMax) >= double.Parse(sRealVal));
                    default:
                        return true;
                }
            }
            catch
            {
                return false;
            }
        }

        /// <summary>
        /// 数字转换成中文数字
        /// </summary>
        /// <param name="strNum"></param>
        /// <returns></returns>
        public static string ConvertNumberToChinese(string strNum)
        {
            string[] Nums = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" };
            string[] Digits = { "", "拾", "佰", "仟" };
            string[] Units = { "元", "万", "亿", "万亿" };

            string x, y, z = "";

            if (strNum.Length > 2)
            {
                x = strNum.Substring(0, strNum.Length - 2);
                y = strNum.Substring(strNum.Length - 2, 2);
            }
            else
            {
                x = "";
                y = strNum;
            }
            if (y.Length == 2)
            {
                int n = Convert.ToInt32(y.Substring(0, 1));
                z = Nums[n] + "角";
            }
            if (y.Length > 0)
            {
                int n = Convert.ToInt32(y.Substring(y.Length - 1, 1));
                z += Nums[n] + "分";
            }
            if (y.Length == 0)
            {
                if (x.Length == 0)
                    z = "零元整";
                else
                    z = "整";
            }

            string S = ""; //返回值 
            int p = 0; //字符位置指针 
            int m = x.Length % 4; //取模 

            // 四位一组得到组数 
            int k = (m > 0 ? x.Length / 4 + 1 : x.Length / 4);

            // 外层循环在所有组中循环 
            // 从左到右 高位到低位 四位一组 逐组处理 
            // 每组最后加上一个单位: "[万亿]","[亿]","[万]" 
            for (int i = k; i > 0; i--)
            {
                int L = 4;
                if (i == k && m != 0)
                {
                    L = m;
                }
                // 得到一组四位数 最高位组有可能不足四位 
                string s = x.Substring(p, L);
                int l = s.Length;

                // 内层循环在该组中的每一位数上循环 从左到右 高位到低位 
                for (int j = 0; j < l; j++)
                {
                    //处理改组中的每一位数加上所在位: "仟","佰","拾",""(个) 
                    int n = Convert.ToInt32(s.Substring(j, 1));
                    if (n == 0)
                    {
                        if (j < l - 1
                            && Convert.ToInt32(s.Substring(j + 1, 1)) > 0 //后一位(右低) 
                            && !S.EndsWith(Nums[n]))
                        {
                            S += Nums[n];
                        }
                    }
                    else
                    {
                        //处理 1013 一千零"十三", 1113 一千一百"一十三" 
                        if (!(n == 1 && (S.EndsWith(Nums[0]) | S.Length == 0) && j == l - 2))
                        {
                            S += Nums[n];
                        }
                        S += Digits[l - j - 1];
                    }
                }
                p += L;
                // 每组最后加上一个单位: [万],[亿] 等 
                if (i < k) //不是最高位的一组 
                {
                    if (Convert.ToInt32(s) != 0)
                    {
                        //如果所有 4 位不全是 0 则加上单位 [万],[亿] 等 
                        S += Units[i - 1];
                    }
                }
                else
                {
                    //处理最高位的一组,最后必须加上单位 
                    S += Units[i - 1];
                }
            }
            return S + z;

        }

        /// <summary>
        /// 序号自增长
        /// </summary>
        /// <param name="sequence">字母加数字的序列号，如"A001","SS0002","003"</param>
        /// <returns>String 原序号字符串中数字加1，如"A002","SS0003","004"</returns>
        public static String SequenceIncrease(String sequence)
        {
            String newSequence = "";
            if (!String.IsNullOrEmpty(sequence))
            {
                int index = sequence.IndexOfAny("0123456789".ToCharArray());
                try
                {
                    String strFormat = Math.Pow(10, sequence.Length - index).ToString().Substring(1);
                    int num = (Convert.ToInt32(sequence.Substring(index)) + 1);
                    if (num < Math.Pow(10, strFormat.Length))
                    {
                        newSequence = sequence.Substring(0, index) + num.ToString(strFormat);
                    }
                    else
                    {
                        throw (new MESException("序列号已超出最大值"));
                    }
                }
                catch (Exception ex)
                {
                    throw (new MESException("序列号格式不正确，必须以字母加数字格式，如\"A001\",\"SS0002\",\"003\""));
                }
            }

            return newSequence;
        }
    }
}