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

namespace YLShipBuildLandMap.Services.Common
{
    public static class ValueTypeEx
    {
        /// <summary>
        /// 返回金额的位数
        /// </summary>
        /// <param name="value">金额</param>
        /// <param name="index">0分位，1角位，2个位，3十位......</param>
        /// <returns></returns>
        public static string GetAmountString(this decimal value, int index)
        {
            string vchar = "";
            var amountStr = value.ToString("##.00").Replace(".", "").ToCharArray().Reverse().ToArray();

            vchar = amountStr.Length > index ? amountStr[index].ToString() : "";
            return vchar;
        }

        #region 中文大写
        /// <summary>
        /// 返回中文数字 ，如壹佰元整
        /// </summary>
        /// <param name="valIn"></param>
        /// <param name="strType">0返回金额写法，1返回数量写法</param>
        /// <returns></returns>
        public static string GetChineseNum(this decimal val, int strType = 0)
        {
            decimal valIn = Math.Abs(val);
            string m_1, m_2, m_3, m_4, m_5, m_6, m_7, m_8, m_9;

            string numNum = "0123456789.";
            string numChina = "零壹贰叁肆伍陆柒捌玖点";
            string numChinaWeigh = "个拾佰仟万拾佰仟亿拾佰仟万";


            //m_1.Format("%.2f",   atof(m_1)); 
            m_1 = valIn.ToString("f2");
            m_2 = m_1;
            m_3 = m_4 = "";
            //m_2:1234-> 壹贰叁肆 
            for (int i = 0; i < 11; i++)
            {
                //m_2=m_2.Replace(numNum.Mid(i,   1),   numChina.Mid(i   *   2,   2)); 
                m_2 = m_2.Replace(numNum.Substring(i, 1), numChina.Substring(i, 1));
            }

            //m_3:佰拾万仟佰拾个 
            int iLen = m_1.Length;
            if (iLen > 16)
            {
                m_8 = m_9 = "越界错!";
                throw new Exception("数字太大，超出处理范围");
            }
            if (m_1.IndexOf('.') > 0)
                iLen = m_1.IndexOf('.');

            for (int j = iLen; j >= 1; j--)
            {
                m_3 += numChinaWeigh.Substring(j - 1, 1);
            }
            //m_4:2行+3行 

            for (int i = 0; i < m_3.Length; i++)
            {
                m_4 += m_2.Substring(i, 1) + m_3.Substring(i, 1);
            }
            //m_5:4行去"0"后拾佰仟 

            m_5 = m_4;
            m_5 = m_5.Replace("零拾", "零");
            m_5 = m_5.Replace("零佰", "零");
            m_5 = m_5.Replace("零仟", "零");
            //m_6:00-> 0,000-> 0 

            m_6 = m_5;
            for (int i = 0; i < iLen; i++)
                m_6 = m_6.Replace("零零", "零");

            //m_7:6行去亿,万,个位"0" 
            m_7 = m_6;
            m_7 = m_7.Replace("亿零万零", "亿零");
            m_7 = m_7.Replace("亿零万", "亿零");
            m_7 = m_7.Replace("零亿", "亿");
            m_7 = m_7.Replace("零万", "万");
            if (m_7.Length > 2)
                m_7 = m_7.Replace("零个", "个");

            //m_8:7行+2行小数-> 数目 
            m_8 = m_7;
            m_8 = m_8.Replace("个", "");
            if (m_2.Substring(m_2.Length - 3, 3) != "点零零")
                m_8 += m_2.Substring(m_2.Length - 3, 3);

            //m_9:7行+2行小数-> 价格 
            m_9 = m_7;
            m_9 = m_9.Replace("个", "元");
            if (m_2.Substring(m_2.Length - 3, 3) != "点零零")
            {
                m_9 += m_2.Substring(m_2.Length - 2, 2);
                m_9 = m_9.Insert(m_9.Length - 1, "角");
                m_9 += "分";
            }
            else m_9 += "整";
            if (m_9 != "零元整")
                m_9 = m_9.Replace("零元", "");
            m_9 = m_9.Replace("零分", "整");

            var prefix = (val < 0) ? "负" : "";
            if (strType == 1) //数量
                return prefix + m_8;
            else
                return prefix + m_9;

        }
        #endregion

        /// <summary>
        /// 按0.5取整
        /// </summary>
        /// <param name="day"></param>
        /// <returns></returns>
        public static decimal GetWorkHours(this decimal value)
        {
            var r = value % (decimal)0.5;
            return (r == 0 ? value : (value + Math.Abs((decimal)0.5 - r)));
        }

        public static string ReplaceHtml(this string value)
        {
            if (!string.IsNullOrEmpty(value))
            {
                value = Regex.Replace(value, @"<script[\s\S]*?</script>", "", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"<noscript[\s\S]*?</noscript>", "", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"<style[\s\S]*?</style>", "", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"<.*?>", "", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"<(.[^>]*)>", " ", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"([\r\n])[\s]+", " ", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"-->", " ", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"<!--.*", " ", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"&(nbsp|#160);", "", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);
                value = Regex.Replace(value, @"&#(\d+);", " ", RegexOptions.IgnoreCase);
            }
            return value;

            //return !string.IsNullOrEmpty(value) ? value.Replace("<div>", "").Replace("</div>", "") : "";
        }
    }
}