using YLErp.BLL;
using YLErp.Modules;
using YLErp.Modules.TradeModule;

namespace YLErp.CustomizedBizLogic
{
    /// <summary>
    /// 招证
    /// </summary>
    public class BizLogicZhaoZheng : BizLogicDefault
    {
        /// <summary>
        /// 生成客户编号
        /// </summary>
        /// <param name="clientObj"></param>
        /// <param name="clientDbQuery"></param>
        public override void GenerateClientCode(DBModels.Client clientObj, IQueryable<DBModels.Client> clientDbQuery)
        {
            //定义固定字段
            var predfix = "9";
            //判断客户编号是否为空
            if (!string.IsNullOrEmpty(clientObj.Number)) { return; }
            var existsClientCodes = clientDbQuery.Where(x => x.Number != null && x.Number != "" && x.Number.Length == 8 && x.Number.StartsWith(predfix)).Select(x => x.Number).ToList();

            var number = 0;

            if (existsClientCodes.Any())
            {
                //获取最大客户编号
                number = existsClientCodes.Select(x => /*Regex.IsMatch(x, @"^[0-9]*$")*/int.TryParse(x, out var o) ? o : 0).Max();
            }
            if (number == 0)
            {
                number = 90000000;
            }
            number++;
            clientObj.Number = number.ToString();
        }
        /// <summary>
        /// 在交易确认前生成交易编号
        /// </summary>
        public override string GenerateTradeNumberBeforeConfirm(TradeNumberReqModel reqModel, YLContext db)
        {
            if (reqModel is null)
            {
                throw new ArgumentNullException(nameof(reqModel));
            }
            //根据客户Id查询出该客户
            var client = DataCacheProvider.GetClientDataSource().GetData(reqModel.clientId);
            if (client == null)
            {
                throw new Exception("未找到客户");
            }
            //取出客户编号
            var clientNumber = client.Number;
            //判断客户编号是否为空
            if (string.IsNullOrWhiteSpace(clientNumber))
            {
                throw new Exception("客户编号不能为空");
            }
            //判断开仓时间是否为空    
            if (!reqModel.trade.TradeDate.HasValue)
            {
                throw new Exception("交易日期不存在,无法生成交易编号!");
            }
            var date = reqModel.trade.TradeDate?.ToString("yyyyMMdd");

            // LogFactory.GetLogger("招证").Info("开始生成交易编号");
            var dealNumber = GenerateZhaoZhengDealNumber(reqModel.trade, date, O => { return db.trade.Where(t => t.TradeNumber.StartsWith(O)).Select(O => O.TradeNumber).ToArray(); });//获取
            reqModel.trade.MetaDic ??= new Dictionary<string, string>();
            reqModel.trade.MetaDic["期货报送成交编号"] = dealNumber;

            return dealNumber;
        }

        /// <summary>
        /// 生成招证成交编号
        /// </summary>
        /// <param name="reqModel"></param>
        /// <param name="date"></param>
        /// <param name="keyId">
        /// <para>了结时：TradeCashId</para>
        /// </param>
        /// <returns></returns>
        public string GenerateZhaoZhengDealNumber(OtcTradeBase trade, trade_cash tradeCash)
        {
            if (trade is null)
            {
                throw new ArgumentNullException(nameof(trade));
            }

            if (tradeCash is null)
            {
                throw new ArgumentNullException(nameof(tradeCash));
            }

            var date = tradeCash.ValueDate.ToString("yyyyMMdd");
            var metaKey = "期货报送成交编号" + tradeCash.id;
            var service = new TradeMetaService(new OptUserInfo(trade.OptId, trade.OptName, OptUserFrom.WebUI));
            var dealNumber = service.GetTradeMeta(trade.id, metaKey);
            if (string.IsNullOrWhiteSpace(dealNumber))
            {
                dealNumber = null;
                if (trade.ParentTradeId > 0 && trade.IsGroup == 0 && tradeCash.Action != ClientCashInCashOut.系统操作_期权费)
                {
                    using var db = DbContextFactory.GetYLDbContext();

                    var prefix = GetZhaoZhengDealNumberPrefix(trade, date, out _);

                    var metaQuery = from tc in db.trade_cash
                                    join td in db.trade on tc.TradeId equals td.id
                                    join meta in db.TradeMeta on tc.TradeId equals meta.TradeId
                                    where td.id != trade.id
                                        && td.ParentTradeId == trade.ParentTradeId
                                        && tc.ValueDate == tradeCash.ValueDate
                                        && tc.Action == tradeCash.Action
                                        && tc.ValidState != ConsGlobal.InValid
                                        && !tc.IsDeleted
                                        && meta.MetaKey.StartsWith("期货报送成交编号")
                                        && meta.MetaValue.StartsWith(prefix)
                                    select new { meta.MetaValue };

                    var metaDto = metaQuery.FirstOrDefault();

                    if (!string.IsNullOrEmpty(metaDto?.MetaValue))
                    {
                        dealNumber = metaDto.MetaValue;
                    }
                }

                //LogFactory.GetLogger("招证").Info($"开始生成交易编号{metaKey}");

                dealNumber ??= GenerateZhaoZhengDealNumber(trade, date);//获取

                new TradeMetaService(new OptUserInfo(trade.OptId, trade.OptName, OptUserFrom.WebUI)).AddTradeMeta(trade.id, metaKey, dealNumber);

                //   LogFactory.GetLogger("招证").Info($"开始生成交易编号保存结果{dealNumber}");
            }
            return dealNumber;

        }

        /// <summary>
        /// 生成招证期货报送成交编号
        /// </summary>
        /// <returns></returns>
        /// <exception cref="NotImplementedException"></exception>
        private string GenerateZhaoZhengDealNumber(OtcTradeBase trade, string date, Func<string, string[]> excludeListInvoke = null)
        {
            var contractNo = "";
            var prefix = GetZhaoZhengDealNumberPrefix(trade, date, out _);
            var db = new YLContext();
            var list = db.TradeMeta.Where(O => O.MetaKey.StartsWith("期货报送成交编号") && O.MetaValue.StartsWith(prefix)).Select(O => O.MetaValue).ToArray();
            var count = list.Count();
            if (excludeListInvoke != null)
            {
                var excludeList = excludeListInvoke(prefix);
                list = list.Concat(excludeList).ToArray();
            }
            //LogFactory.GetLogger("招证").Info($"开始生成交易编号总数{count}");
            do
            {
                count++;
                contractNo = $"{prefix}{count:0000}";
                // LogFactory.GetLogger("招证").Info($"开始生成交易编号最终生成：{contractNo}");
            } while (list.Contains(contractNo));
            return contractNo;
        }

        private static string GetZhaoZhengDealNumberPrefix(OtcTradeBase trade, string date, out Client client)
        {
            client = DataCacheProvider.GetClientDataSource().GetData(trade.ClientId)
               ?? throw new ServiceFaultException($"找不到客户信息，client id:{trade.ClientId},client name:{trade.ClientName}");

            var tradeType = trade.TradeType switch
            {
                "收益互换" => "SW",
                "远期" => "FW",
                "现金流交易" => "OT",
                _ => "OP",
            };
            return $"{tradeType}-{client.Number}-{date}";
        }
    }
}