using System.Text.RegularExpressions;
using YLErp.BLL;

namespace YLErp.CustomizedBizLogic
{
    class BizLogicMaoChuan : BizLogicDefault
    {
        public override string GenerateTradeNumberBeforeConfirm(TradeNumberReqModel reqModel, YLContext db)
        {
            if (!string.IsNullOrWhiteSpace(reqModel.trade.TradeNumber)) { return reqModel.trade.TradeNumber; }
            if (!reqModel.trade.TradeDate.HasValue) { throw new Exception("交易日期不存在,无法生成交易编号!"); }
            lock (_clientCodeLock)
            {
                var date = DateTime.Now;
                string code = "";
                string codePrefix = "";
                var items = new List<string>();
                switch (reqModel.trade.BuySell)
                {
                    case "买入":
                    case "多头开仓":
                    case "空头平仓":
                        items.Add("long");
                        break;
                    case "卖出":
                    case "空头开仓":
                    case "多头平仓":
                        items.Add("short");
                        break;
                    default:
                        break;
                }
                switch (reqModel.trade.TradeType)
                {
                    case "远期":
                        items.Add("f");
                        break;
                    case "香草期权":
                    case "障碍期权":
                    case "二元期权":
                    case "亚式期权":
                    case "彩虹期权":
                    case "价差期权":
                    case "信用债":
                    case "商品期货":
                    case "商品现货":
                    case "股票":
                    case "场内期权":
                    case "自定义交易":
                    case "双鲨期权":
                    case "凤凰期权":
                    case "雪球期权":
                    case "合成价差期权":
                    case "牛市价差":
                    case "熊市价差":
                    case "亚式熊市价差":
                    case "跨式组合":
                    case "宽跨式组合":
                    case "蝶式组合":
                    default:
                        items.Add(reqModel.trade.OptionType == "看涨" ? "C" : "P");
                        break;
                }
                items.Add(Regex.Replace(reqModel.trade.UnderlyingCode, @"\d+", ""));
                items.Add(date.ToString("yy"));
                codePrefix = string.Join("-", items).ToLower();
                List<string> tradeNumbers = new List<string>();

                tradeNumbers = db.trade.Where(x => x.ValidState != "InValid" && x.TradeDate.Value.Year == date.Year).Select(x => x.TradeNumber).ToList();

                //获取导入
                if (reqModel.importTrades != null && reqModel.importTrades.Any())
                {
                    tradeNumbers.AddRange(reqModel.importTrades.Select(O => O.TradeNumber));
                }
                int number = tradeNumbers.Count;
                do
                {
                    number++;
                    code = codePrefix + number.ToString("000");
                    if (!tradeNumbers.Contains(code))
                    { break; }
                } while (true);
                return code;
            }
        }

        public override void GenerateClientCode(Client clientObj, IQueryable<Client> clientDbQuery)
        {
            if (!string.IsNullOrEmpty(clientObj.Number)) { return; }
            lock (_clientCodeLock)
            {
                DateTime date = DateTime.Now;
                string code = "";
                string codePrefix = $"mczb-otc-{date.Year}";
                var existingClientCodes = clientDbQuery.Where(x => x.Number.StartsWith(codePrefix)).Select(x => x.Number).ToList();
                int number = existingClientCodes.Count;
                do
                {
                    number++;
                    code = codePrefix + number.ToString("000");
                    if (!existingClientCodes.Contains(code))
                    { break; }
                } while (true);

                clientObj.Number = code;
            }
        }
    }
}