using System.Globalization;
using System.Collections;
using System;


namespace nl
{
    public static class ChinaDate
    {
        private static ChineseLunisolarCalendar china = new ChineseLunisolarCalendar();
        private static Hashtable gHoliday = new Hashtable();
        private static Hashtable nHoliday = new Hashtable();
        private static string[] JQ = { "小寒", "大寒", "立春", "雨水", "惊蛰", "春分", "清明", "谷雨", "立夏", "小满", "芒种", "夏至", "小暑", "大暑", "立秋", "处暑", "白露", "秋分", "寒露", "霜降", "立冬", "小雪", "大雪", "冬至" };
        private static int[] JQData = { 0, 21208, 42467, 63836, 85337, 107014, 128867, 150921, 173149, 195551, 218072, 240693, 263343, 285989, 308563, 331033, 353350, 375494, 397447, 419210, 440795, 462224, 483532, 504758 };
        static ChinaDate()
        {
            //公历节日
            gHoliday.Add("0101", "元旦");
            gHoliday.Add("0214", "情人节");
            gHoliday.Add("0305", "雷锋日");
            gHoliday.Add("0308", "妇女节");
            gHoliday.Add("0312", "植树节");
            gHoliday.Add("0315", "消权日");
            gHoliday.Add("0401", "愚人节");
            gHoliday.Add("0501", "劳动节");
            gHoliday.Add("0504", "青年节");
            gHoliday.Add("0601", "儿童节");
            gHoliday.Add("0701", "建党节");
            gHoliday.Add("0801", "建军节");
            gHoliday.Add("0910", "教师节");
            gHoliday.Add("1001", "国庆节");
            gHoliday.Add("1224", "平安夜");
            gHoliday.Add("1225", "圣诞节");

            //农历节日
            nHoliday.Add("0101", "春节");
            nHoliday.Add("0115", "元宵节");
            nHoliday.Add("0505", "端午节");
            nHoliday.Add("0815", "中秋节");
            nHoliday.Add("0909", "重阳节");
            nHoliday.Add("1208", "腊八节");
        }

        /// <summary>
        /// 获取农历
        /// </summary>
        /// <param name="dt"></param>
        /// <returns></returns>
        public static string GetChinaDate(DateTime dt)
        {
            if (dt > china.MaxSupportedDateTime || dt < china.MinSupportedDateTime)
            {
                //日期范围：1901 年 2 月 19 日 - 2101 年 1 月 28 日
                throw new Exception(string.Format("日期超出范围！必须在{0}到{1}之间！", china.MinSupportedDateTime.ToString("yyyy-MM-dd"), china.MaxSupportedDateTime.ToString("yyyy-MM-dd")));
            }
            string str = string.Format("{0} {1}{2}", GetYear(dt), GetMonth(dt), GetDay(dt));
            string strJQ = GetSolarTerm(dt);
            if (strJQ != "")
            {
                str += " (" + strJQ + ")";
            }
            string strHoliday = GetHoliday(dt);
            if (strHoliday != "")
            {
                str += " " + strHoliday;
            }
            string strChinaHoliday = GetChinaHoliday(dt);
            if (strChinaHoliday != "")
            {
                str += " " + strChinaHoliday;
            }

            return str;
        }

        /// <summary>
        /// 获取农历年份
        /// </summary>
        /// &