using BaseOUDAL;
using Qdp.Foundation.Implementations;
using YLErp.QdpModule;

namespace YLErp.Modules.DictionaryModule
{
    public class DictionarySerivice
    {
        readonly ErpBaseContext basedb = new();
        public DateTime GetForwardDateType(DateTime dateTime, int lastMonth, int lastDay, ForwardDateTypeEnum typeEnum, bool isbefore)
        {
            dateTime = dateTime.AddMonths(-lastMonth);
            var t = typeEnum == 0 ? ("", new DateTime()) : GetWeekInfoByMonth(dateTime, lastMonth, lastDay);
            var number = WeekStrToNumber(t.Item1);
            switch (typeEnum)
            {
                case ForwardDateTypeEnum.交易日:
                    //取下一个月第一天
                    dateTime = new Date(dateTime.Year, dateTime.Month, 1);
                    dateTime = dateTime.AddMonths(1);
                    dateTime = QdpCalendarHelper.GetNonHoliday(dateTime);
                    for (var i = 0; i < lastDay; i++)//OTC-5942 上一个月倒数第一个交易日
                    {
                        dateTime = QdpCalendarHelper.GetNonHolidayDefore(dateTime.AddDays(-1));
                    }
                    break;
                case ForwardDateTypeEnum.星期一:
                    dateTime = GetWeekDateTime(t.Item2.AddDays(number >= 1 ? 7 - number + 1 : 1 - number), isbefore);
                    break;
                case ForwardDateTypeEnum.星期二:
                    dateTime = GetWeekDateTime(t.Item2.AddDays(number >= 2 ? 7 - number + 2 : 2 - number), isbefore);
                    break;
                case ForwardDateTypeEnum.星期三:
                    dateTime = GetWeekDateTime(t.Item2.AddDays(number >= 3 ? 7 - number + 3 : 3 - number), isbefore);
                    break;
                case ForwardDateTypeEnum.星期四:
                    dateTime = GetWeekDateTime(t.Item2.AddDays(number >= 4 ? 7 - number + 4 : 4 - number), isbefore);
                    break;
                case ForwardDateTypeEnum.星期五:
                    dateTime = GetWeekDateTime(t.Item2.AddDays(number >= 5 ? 7 - number + 5 : 5 - number), isbefore);
                    break;
                case ForwardDateTypeEnum.星期六:
                    dateTime = GetWeekDateTime(t.Item2.AddDays(number >= 6 ? 7 - number + 6 : 6 - number), isbefore);
                    break;
                case ForwardDateTypeEnum.星期日:
                    dateTime = GetWeekDateTime(t.Item2.AddDays(number >= 7 ? 7 - number + 7 : 7 - number), isbefore);
                    break;
            }
            return dateTime;
        }
        public DateTime GetWeekDateTime(DateTime date, bool isAfter = true)
        {
            if (QdpCalendarHelper.IsHoliday(date))
            {
                date = date.AddDays(isAfter ? -1 : 1);
                return GetWeekDateTime(date, isAfter);
            }
            else
            {
                return date;
            }
        }
        public int WeekStrToNumber(string weekStr)
        {
            var number = 0;
            switch (weekStr)
            {
                case "Monday":
                    number = 1;
                    break;
                case "Tuesday":
                    number = 2;
                    break;
                case "Wednesday":
                    number = 3;
                    break;
                case "Thursday":
                    number = 4;
                    break;
                case "Friday":
                    number = 5;
                    break;
                case "Saturday":
                    number = 6;
                    break;
                case "Sunday":
                    number = 7;
                    break;
            }
            return number;
        }
        public string NumberToWeekStr(int number)
        {
            var weekStr = "";
            switch (number)
            {
                case (int)ForwardDateTypeEnum.交易日:
                    weekStr = "交易日";
                    break;
                case (int)ForwardDateTypeEnum.星期一:
                    weekStr = "星期一";
                    break;
                case (int)ForwardDateTypeEnum.星期二:
                    weekStr = "星期二";
                    break;
                case (int)ForwardDateTypeEnum.星期三:
                    weekStr = "星期三";
                    break;
                case (int)ForwardDateTypeEnum.星期四:
                    weekStr = "星期四";
                    break;
                case (int)ForwardDateTypeEnum.星期五:
                    weekStr = "星期五";
                    break;
                case (int)ForwardDateTypeEnum.星期六:
                    weekStr = "星期六";
                    break;
                case (int)ForwardDateTypeEnum.星期日:
                    weekStr = "星期日";
                    break;
                default:
                    break;
            }
            return weekStr;
        }
        public (string, DateTime) GetWeekInfoByMonth(DateTime dateTime, int month, int lastDay)
        {
            if (month == 0)
            {
                var endWeekStr = dateTime.DayOfWeek.ToString();
                var beforeWeekDay = new DateTime(dateTime.Year, dateTime.Month, dateTime.Day);
                beforeWeekDay = beforeWeekDay.AddDays(-(lastDay * 7));
                return (endWeekStr, beforeWeekDay);
            }
            else
            {
                var monthEndDate = new DateTime(dateTime.Year, dateTime.Month, 1);
                monthEndDate = monthEndDate.AddMonths(1).AddDays(-1);
                //获取最后一天星期几
                var endWeekStr = monthEndDate.DayOfWeek.ToString();
                var beforeWeekDay = new DateTime(dateTime.Year, dateTime.Month, monthEndDate.Day);
                beforeWeekDay = beforeWeekDay.AddDays(-(lastDay * 7));
                return (endWeekStr, beforeWeekDay);
            }
        }

        public Dictionary<string, string> GetForwardDateNameDic()
        {

            //标的交割月前  {  【】  }个月倒数第 {  【】  }个   { 交易日 / 星期【】}
            var dicStr = new Dictionary<string, string>
            {
                { "期权到期日", "期权到期日" },
                { "标的到期日", "标的到期日" }
            };
            var dictionaryModel = basedb.Dictionaries.FirstOrDefault(d => d.Name == "累计转远期到期日类型");
            if (dictionaryModel != null)
            {
                var dictionaryItemModels = basedb.DictionaryItems.Where(l => l.DictId == dictionaryModel.Id).ToList();
                if (dictionaryItemModels != null && dictionaryItemModels.Any())
                {
                    foreach (var dictionaryItemModel in dictionaryItemModels)
                    {
                        var str = "";
                        if (int.Parse(dictionaryItemModel.Name) == 1)
                        {
                            //标的交割月在前一月  0代表交易日
                            if (dictionaryItemModel.ShortName.Split(',')[1] == "0")
                            {
                                //适应以前规则
                                str = string.Format("标的交割月前{0}{1}", NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.ShortName.Split(',')[0])), NumberToWeekStr(int.Parse(dictionaryItemModel.ShortName.Split(',')[1])));
                            }
                            else
                            {
                                str = string.Format("标的交割月前倒数第{0}个{1}{2}", NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.ShortName.Split(',')[0])), NumberToWeekStr(int.Parse(dictionaryItemModel.ShortName.Split(',')[1])), dictionaryItemModel.ShortName.Split(',')[2] == "0" ? "(向前调整)" : "(向后调整)");
                            }
                        }
                        else
                        {
                            if (dictionaryItemModel.ShortName.Split(',')[1] == "0")
                            {
                                str = string.Format("标的交割月前{0}个月倒数第{1}个{2}", NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.Name)), NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.ShortName.Split(',')[0])), NumberToWeekStr(int.Parse(dictionaryItemModel.ShortName.Split(',')[1])));
                            }
                            else
                            {
                                str = string.Format("标的交割月前{0}个月倒数第{1}个{2}{3}", NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.Name)), NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.ShortName.Split(',')[0])), NumberToWeekStr(int.Parse(dictionaryItemModel.ShortName.Split(',')[1])), dictionaryItemModel.ShortName.Split(',')[2] == "0" ? "(向前调整)" : "(向后调整)");
                            }
                        }
                        dicStr.Add(str, str);
                    }
                }
            }
            return dicStr;
        }
        public Dictionary<int, string> GetForwardDateDic()
        {
            var dictionaryModel = basedb.Dictionaries.FirstOrDefault(d => d.Name == "累计转远期到期日类型");
            var dicStr = new Dictionary<int, string>();
            if (dictionaryModel != null)
            {
                var dictionaryItemModels = basedb.DictionaryItems.Where(l => l.DictId == dictionaryModel.Id).ToList();
                //标的交割月前  {  【】  }个月倒数第 {  【】  }个   { 交易日 / 星期【】}
                if (dictionaryItemModels != null && dictionaryItemModels.Any())
                {
                    foreach (var dictionaryItemModel in dictionaryItemModels)
                    {
                        var str = "";

                        if (int.Parse(dictionaryItemModel.Name) == 1)
                        {
                            //标的交割月在前一月 0代表交易日
                            if (dictionaryItemModel.ShortName.Split(',')[1] == "0")
                            {
                                //适应以前规则
                                str = string.Format("标的交割月前{0}{1}", NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.ShortName.Split(',')[0])), NumberToWeekStr(int.Parse(dictionaryItemModel.ShortName.Split(',')[1])));
                            }
                            else
                            {
                                str = string.Format("标的交割月前倒数第{0}个{1}{2}", NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.ShortName.Split(',')[0])), NumberToWeekStr(int.Parse(dictionaryItemModel.ShortName.Split(',')[1])), dictionaryItemModel.ShortName.Split(',')[2] == "0" ? "(向前调整)" : "(向后调整)");
                            }
                        }
                        else
                        {
                            //不在当月
                            if (dictionaryItemModel.ShortName.Split(',')[1] == "0")
                            {
                                str = string.Format("标的交割月前{0}个月倒数第{1}个{2}", NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.Name)), NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.ShortName.Split(',')[0])), NumberToWeekStr(int.Parse(dictionaryItemModel.ShortName.Split(',')[1])));
                            }
                            else
                            {
                                str = string.Format("标的交割月前{0}个月倒数第{1}个{2}{3}", NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.Name)), NumberHelper.CurrToChnInt(int.Parse(dictionaryItemModel.ShortName.Split(',')[0])), NumberToWeekStr(int.Parse(dictionaryItemModel.ShortName.Split(',')[1])), dictionaryItemModel.ShortName.Split(',')[2] == "0" ? "(向前调整)" : "(向后调整)");
                            }
                        }
                        dicStr.Add(dictionaryItemModel.Id, str);
                    }
                }
            }
            return dicStr;
        }
    }
    public enum ForwardDateTypeEnum
    {
        交易日 = 0,
        星期一 = 1,
        星期二 = 2,
        星期三 = 3,
        星期四 = 4,
        星期五 = 5,
        星期六 = 6,
        星期日 = 7,
    }
}