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

namespace Common
{
    /// <summary>
    /// 字符串操作 - 工具方法
    /// </summary>
    public static partial class StringHelper
    {
        #region ContainsChinese(是否包含中文)

        /// <summary>
        /// 是否包含中文
        /// </summary>
        /// <param name="text">文本</param>
        public static bool ContainsChinese(string text)
        {
            const string pattern = "[\u4e00-\u9fa5]+";
            return Regex.IsMatch(text, pattern);
        }

        #endregion

        #region ContainsNumber(是否包含数字)

        /// <summary>
        /// 是否包含数字
        /// </summary>
        /// <param name="text">文本</param>
        public static bool ContainsNumber(string text)
        {
            const string pattern = "[0-9]+";
            return Regex.IsMatch(text, pattern);
        }

        #endregion

        #region Distinct(去除重复)

        /// <summary>
        /// 去除重复
        /// </summary>
        /// <param name="value">值，范例1："5555",返回"5",范例2："4545",返回"45"</param>
        public static string Distinct(string value)
        {
            var array = value.ToCharArray();
            return new string(array.Distinct().ToArray());
        }

        #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(",", StringComparison.Ordinal));
        }
        /// <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, StringComparison.Ordinal));
        }
        /// <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 快速验证一个字符串是否符合指定的正则表达式
        /// <summary>  
        /// 快速验证一个字符串是否符合指定的正则表达式。  
        /// </summary>
        /// <param name="express">正则表达式的内容。</param>  
        /// <param name="value">需验证的字符串。</param>  
        /// <returns>是否合法的bool值。</returns>  
        public static bool QuickValidate(string express, string value)
        {
            if (value == null) return false;
            Regex myRegex = new Regex(express);
            if (value.Length == 0)
            {
                return false;
            }
            return myRegex.IsMatch(value);
        }
        #endregion
        #region 彩票类型参数首字母转换大小写
        /// <summary>
        /// 彩票类型参数首字母转换大小写
        /// </summary>
        /// <param name="value">字符串</param>
        /// <param name="c">分割字符</param>
        /// <param name="i">0:小写，1:大写</param>
        /// <returns></returns>
        public static string ParamTransUperOrLower(string value, char c, int i = 0)
        {
            string result = "";
            string[] arr = value.Split(c);
            for (int j = 0; j < arr.Length - 1; j++)
            {
                if (i == 0)
                {
                    result += arr[j].ToLower() + c;
                }
                else
                {
                    result += arr[j].ToUpper() + c;
                }
            }
            result += arr[arr.Length - 1];
            return result;
        }
        /// <summary>
        /// 开奖日期转换
        /// </summary>
        /// <param name="desc"></param>
        /// <returns></returns>
        public static string getKjDesc(string desc)
        {
            string time = "日一二三四五六";
            string[] txt = desc.Split(',');
            try
            {
                if (txt.Length == 7)
                {
                    desc = "每天开奖一次";
                }
                else
                {
                    desc = "每";
                    for (var i = 0; i < txt.Length; i++)
                    {
                        desc += "周" + time.ElementAt(Int32.Parse(txt[i]));
                        if (i < txt.Length - 1)
                        {
                            desc = desc + "、";
                        }
                    }
                }

            }
            catch (Exception e)
            {
                return "";
            }
            return desc;
        }

        /// <summary>
        /// 获取兑奖截止时间
        /// </summary>
        /// <returns></returns>
        public static DateTime GetDuiJiangtime(string OpenTime)
        {
            try
            {
                DateTime tmp = new DateTime();
                DateTime.TryParse(OpenTime, out tmp);
                return tmp.AddDays(60);
            }
            catch (Exception ee)
            {

                return DateTime.Now.AddDays(60);
            }
        }
        /// <summary>
        /// 获取彩种去年的最后一期
        /// </summary>
        /// <param name="KJTime"></param>
        /// <returns></returns>
        public static int GetLastTermOfLastYear(string KJTime)
        {
            try
            {
                var kjtime = KJTime.Split(',');
                DateTime time = DateTime.Now;
                int year = time.Year - 1;
                DateTime etime = new DateTime(year, 12, 31);
                DateTime stime = new DateTime(year, 1, 1);
                var tp = etime - stime;
                int caday = tp.Days;
                int termcount = 0;
                for (int i = 0; i < caday; i++)
                {
                    stime = stime.AddDays(1);
                    if (kjtime.Contains(((int)stime.DayOfWeek).ToString()))
                    {
                        termcount += 1;
                    }
                }
                return termcount;
            }
            catch (Exception ee)
            {
                return 0;
            }

        }
        public static int GetLastYear(string qs)
        {
            int lastyear = 0;
            try
            {
                if (qs.Length == 7)
                {
                    lastyear = int.Parse(qs.Substring(0, 4)) - 1;
                }
                else
                {
                    lastyear = int.Parse("20" + qs.Substring(0, 2)) - 1;
                }

                return lastyear;
            }
            catch (Exception ee)
            {
                return 0;
            }
        }
        #endregion
    }
}