using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
using System.Text.RegularExpressions;  //引用正则表达式

namespace ARW.Common
{
    /// <summary>
    /// 常用公共类
    /// </summary>
    public class Common
    {
        public static object _lock = new object();

        public static int count = 1;


        #region Stopwatch计时器
        /// <summary>
        /// 计时器开始
        /// </summary>
        /// <returns></returns>
        public static Stopwatch TimerStart()
        {
            Stopwatch watch = new Stopwatch();
            watch.Reset();
            watch.Start();
            return watch;
        }
        /// <summary>
        /// 计时器结束
        /// </summary>
        /// <param name="watch"></param>
        /// <returns></returns>
        public static string TimerEnd(Stopwatch watch)
        {
            watch.Stop();
            double costtime = watch.ElapsedMilliseconds;
            return costtime.ToString();
        }
        #endregion

        #region 删除数组中的重复项
        /// <summary>
        /// 删除数组中的重复项
        /// </summary>
        /// <param name="values"></param>
        /// <returns></returns>
        public static string[] RemoveDup(string[] values)
        {
            List<string> list = new List<string>();
            for (int i = 0; i < values.Length; i++)//遍历数组成员
            {
                if (!list.Contains(values[i]))
                {
                    list.Add(values[i]);
                };
            }
            return list.ToArray();
        }
        #endregion

        #region 自动生成编号
        /// <summary>
        /// 表示全局唯一标识符 (GUID)。
        /// </summary>
        /// <returns></returns>
        public static string GuId()
        {
            return Guid.NewGuid().ToString();
        }
        /// <summary>
        /// 自动生成编号  201008251145409865
        /// </summary>
        /// <returns></returns>
        public static string CreateNo()
        {
            Random random = new Random();
            string strRandom = random.Next(1000, 10000).ToString(); //生成编号 
            string code = DateTime.Now.ToString("yyyyMMddHHmmss") + strRandom;//形如
            return code;
        }

        /// <summary>
        /// 生成不重复的订单，净水器
        /// </summary>
        /// <returns></returns>
        public static string CreateNo2()
        {
            lock (_lock)
            {
                if (count >= 10000)
                {
                    count = 1;
                }

                var number = DateTime.Now.ToString("yyMMddHHmmssfff") + count.ToString("0000");

                count++;

                return number;
            }
        }

        /// <summary>
        /// 生成不重复的订单，送芯
        /// </summary>
        /// <returns></returns>
        public static string CreateNo3()
        {
            lock (_lock)
            {
                if (count >= 10000)
                {
                    count = 1;
                }

                var number = "C" + DateTime.Now.ToString("yyMMddHHmmssfff") + count.ToString("0000");

                count++;

                return number;
            }
        }

        /// <summary>
        /// 退款订单号生成
        /// </summary>
        /// <returns></returns>
        public static string CreateNo_Recharge()
        {
            lock (_lock)
            {
                if (count >= 10000)
                {
                    count = 1;
                }

                var number = "R" + DateTime.Now.ToString("yyMMddHHmmssfff") + count.ToString("0000");

                count++;

                return number;
            }
        }

        /// <summary>
        /// 生成订单号
        /// </summary>
        /// <returns></returns>
        public static string CreateNoQuery()
        {
            lock (_lock)
            {
                if (count >= 10000)
                {
                    count = 1;
                }

                var number = "Q" + DateTime.Now.ToString("yyMMddHHmmssfff") + count.ToString("0000");

                count++;

                return number;
            }
        }


        #endregion

        #region 生成0-9随机数
        /// <summary>
        /// 生成0-9随机数
        /// </summary>
        /// <param name="codeNum">生成长度</param>
        /// <returns></returns>
        public static string RndNum(int codeNum)
        {
            StringBuilder sb = new StringBuilder(codeNum);
            Random rand = new Random();
            for (int i = 1; i < codeNum + 1; i++)
            {
                int t = rand.Next(9);
                sb.AppendFormat("{0}", t);
            }
            return sb.ToString();

        }
        #endregion

        #region 生成随机数
        /// <summary>
        /// 生成随机数
        /// </summary>
        /// <param name="length">数据长度</param>
        /// <param name="CreateType">生成类型,0：纯数字,1:纯字母, 2:数据字+字母</param>
        /// <returns></returns>
        public static string GetRandomNo(int length, int CreateType)
        {
            char[] charlist = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'h', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z' };
            string result = "";

            Random rd = new Random();
            switch (CreateType)
            {
                case 0: //纯数字
                    for (int i = 0; i < length; i++)
                    {
                        result = result + charlist[rd.Next(0, 10)];
                    }
                    break;
                case 1://纯字母
                    for (int i = 0; i < length; i++)
                    {
                        result = result + charlist[rd.Next(10, 36)];
                    }
                    break;
                case 2://数据字+字母
                    for (int i = 0; i < length; i++)
                    {
                        result = result + charlist[rd.Next(0, 36)];
                    }
                    break;
            }

            return result;
        }
        #endregion


        #region 删除最后一个字符之后的字符
        /// <summary>
        /// 删除最后结尾的一个逗号
        /// </summary>
        public static string DelLastComma(string str)
        {
            return str.Substring(0, str.LastIndexOf(","));
        }
        /// <summary>
        /// 删除最后结尾的指定字符后的字符
        /// </summary>
        public static string DelLastChar(string str, string strchar)
        {
            return str.Substring(0, str.LastIndexOf(strchar));
        }
        /// <summary>
        /// 删除最后结尾的长度
        /// </summary>
        /// <param name="str"></param>
        /// <param name="Length"></param>
        /// <returns></returns>
        public static string DelLastLength(string str, int Length)
        {
            if (string.IsNullOrEmpty(str))
                return "";
            str = str.Substring(0, str.Length - Length);
            return str;
        }
        #endregion


        #region 小写转大写
        /// <summary> 
        /// 转换人民币大小金额 
        /// </summary> 
        /// <param name="num">金额</param> 
        /// <returns>返回大写形式</returns> 
        public static string CmycurD(decimal num)
        {
            string str1 = "零壹贰叁肆伍陆柒捌玖";            //0-9所对应的汉字 
            string str2 = "万仟佰拾亿仟佰拾万仟佰拾元角分"; //数字位所对应的汉字 
            string str3 = "";    //从原num值中取出的值 
            string str4 = "";    //数字的字符串形式 
            string str5 = "";  //人民币大写金额形式 
            int i;    //循环变量 
            int j;    //num的值乘以100的字符串长度 
            string ch1 = "";    //数字的汉语读法 
            string ch2 = "";    //数字位的汉字读法 
            int nzero = 0;  //用来计算连续的零值是几个 
            int temp;            //从原num值中取出的值 

            num = Math.Round(Math.Abs(num), 2);    //将num取绝对值并四舍五入取2位小数 
            str4 = ((long)(num * 100)).ToString();        //将num乘100并转换成字符串形式 
            j = str4.Length;      //找出最高位 
            if (j > 15) { return "溢出"; }
            str2 = str2.Substring(15 - j);   //取出对应位数的str2的值。如：200.55,j为5所以str2=佰拾元角分 

            //循环取出每一位需要转换的值 
            for (i = 0; i < j; i++)
            {
                str3 = str4.Substring(i, 1);          //取出需转换的某一位的值 
                temp = Convert.ToInt32(str3);      //转换为数字 
                if (i != (j - 3) && i != (j - 7) && i != (j - 11) && i != (j - 15))
                {
                    //当所取位数不为元、万、亿、万亿上的数字时 
                    if (str3 == "0")
                    {
                        ch1 = "";
                        ch2 = "";
                        nzero = nzero + 1;
                    }
                    else
                    {
                        if (str3 != "0" && nzero != 0)
                        {
                            ch1 = "零" + str1.Substring(temp * 1, 1);
                            ch2 = str2.Substring(i, 1);
                            nzero = 0;
                        }
                        else
                        {
                            ch1 = str1.Substring(temp * 1, 1);
                            ch2 = str2.Substring(i, 1);
                            nzero = 0;
                        }
                    }
                }
                else
                {
                    //该位是万亿，亿，万，元位等关键位 
                    if (str3 != "0" && nzero != 0)
                    {
                        ch1 = "零" + str1.Substring(temp * 1, 1);
                        ch2 = str2.Substring(i, 1);
                        nzero = 0;
                    }
                    else
                    {
                        if (str3 != "0" && nzero == 0)
                        {
                            ch1 = str1.Substring(temp * 1, 1);
                            ch2 = str2.Substring(i, 1);
                            nzero = 0;
                        }
                        else
                        {
                            if (str3 == "0" && nzero >= 3)
                            {
                                ch1 = "";
                                ch2 = "";
                                nzero = nzero + 1;
                            }
                            else
                            {
                                if (j >= 11)
                                {
                                    ch1 = "";
                                    nzero = nzero + 1;
                                }
                                else
                                {
                                    ch1 = "";
                                    ch2 = str2.Substring(i, 1);
                                    nzero = nzero + 1;
                                }
                            }
                        }
                    }
                }
                if (i == (j - 11) || i == (j - 3))
                {
                    //如果该位是亿位或元位，则必须写上 
                    ch2 = str2.Substring(i, 1);
                }
                str5 = str5 + ch1 + ch2;

                if (i == j - 1 && str3 == "0")
                {
                    //最后一位（分）为0时，加上“整” 
                    str5 = str5 + '整';
                }
            }
            if (num == 0)
            {
                str5 = "零元整";
            }
            return str5;
        }

        #endregion

        #region  获取html所有Img标签src地址
        public static string[] GetHtmlImageUrlList(string sHtmlText)
        {
            // 定义正则表达式用来匹配 img 标签   
            Regex regImg = new Regex(@"<img\b[^<>]*?\bsrc[\s\t\r\n]*=[\s\t\r\n]*[""']?[\s\t\r\n]*(?<imgUrl>[^\s\t\r\n""'<>]*)[^<>]*?/?[\s\t\r\n]*>", RegexOptions.IgnoreCase);

            // 搜索匹配的字符串   
            MatchCollection matches = regImg.Matches(sHtmlText);
            int i = 0;
            string[] sUrlList = new string[matches.Count];

            // 取得匹配项列表   
            foreach (Match match in matches)
                sUrlList[i++] = match.Groups["imgUrl"].Value;
            return sUrlList;
        }

        #endregion

        #region  删除html标签
        public static string ReplaceHtmlTag(string html, int length = 0)
        {
            string strText = System.Text.RegularExpressions.Regex.Replace(html, "<[^>]+>", "");
            strText = System.Text.RegularExpressions.Regex.Replace(strText, "&[^;]+;", "");

            if (length > 0 && strText.Length > length)
                return strText.Substring(0, length);

            return strText;
        }
        #endregion
    }
}