using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using YLErp.Abstract;
using YLErp.BLL;
using YLErp.BLL.Eod;
using YLErp.DataBase;
using YLErp.DBModels;
using YLErp.Helpers;
using YLErp.Model;
using YLErp.Model.Enum;
using YLErp.Modules.ExchangeTradeModule;

namespace YLErp.Modules.SwapModule
{
    public class TRSHedgingOrderService : YLBaseService
    {
        private IKafkaProduce kafkaProduceHelper;
        public TRSHedgingOrderService(OptUserInfo optUser) : base(optUser)
        {
        }
        public void SetKafKaProduce(IKafkaProduce kafkaProduce)
        {
            kafkaProduceHelper = kafkaProduce;
        }
        /// <summary>
        /// Trs对冲交易接口
        /// </summary>
        /// <param name="_kafkaConsumer"></param>
        public void ConsumerTrsHedgingOrderCancel(KafkaConsumerHelper _kafkaConsumer)
        {
            _kafkaConsumer.Subscribe(msg =>
            {
                if (!string.IsNullOrEmpty(msg))
                {
                    Result dealResult = new Result();
                    HedgingOrderCancelResp hedgingOrderCancelResp = new HedgingOrderCancelResp();
                    var result = JsonHelper.Deserialize<HedgingOrderCancelReq>(msg);
                    if (result == null)
                    {
                        dealResult.success = false;
                        dealResult.msg = "请求参数错误";
                        return;
                    }
                    try
                    {
                        dealResult.success = true;
                        hedgingOrderCancelResp.trs_deal_id = result.trs_deal_id;
                        var flow = GetSwapFlowByTrsDealId(result.trs_deal_id);
                        CancelHedgingOrder(flow, hedgingOrderCancelResp, result.trs_deal_no);
                    }
                    catch (Exception e)
                    {
                        dealResult.success = false;
                        dealResult.msg = e.Message;
                        LogFactory.GetLogger("TRSHedgingOrderService").Error("TRS对冲交易撤单接口", e);
                    }
                }
            });
        }
        /// <summary>
        /// 获取流水
        /// </summary>
        /// <param name="trs_deal_id"></param>
        /// <returns></returns>
        /// <exception cref="Exception"></exception>
        private swap_flow GetSwapFlowByTrsDealId(long trs_deal_id)
        {
            var swapFlow = DbContext.swap_flow.Where(x => x.trs_deal_id == trs_deal_id).AsNoTracking().FirstOrDefault();
            if (swapFlow == null)
            {
                throw new Exception($"根据{trs_deal_id}找不到对应流水");
            }
            if (swapFlow.OccurTime < DateTime.Now.Date)
            {
                throw new Exception($"对冲交易时间不是当日不能撤单");
            }
            return swapFlow;
        }
        /// <summary>
        /// 撤单
        /// </summary>
        /// <param name="swapFlow"></param>
        /// <param name="hedgingOrderCancelResp"></param>
        /// <returns></returns>
        private void CancelHedgingOrder(swap_flow swapFlow, HedgingOrderCancelResp hedgingOrderCancelResp, string trs_deal_no)
        {
            List<int> tradeIds=new List<int>();
            if (swapFlow.DataState == (int)SwapFlowDateStateEnum.完成)
            {
                var swapEvents = DbContext.swap_event.Where(x => x.EventReason.Contains("自动") && x.ValueDate == swapFlow.OccurTime).AsNoTracking();
                tradeIds = swapEvents.Select(s => s.SwapTradeId).ToList();
                var swaptrades = DbContext.trade.Where(x => tradeIds.Contains(x.id) && x.ClientId == swapFlow.ClientId && x.UnderlyingCode == swapFlow.UnderlyingCode && x.ValidState != ConsGlobal.InValid).AsNoTracking().ToList();
                tradeIds = swaptrades.Select(s => s.id).ToList();
                new SwapTradeAutoService(OptUserInfo.SystemUser).ResetTradeByDate(swapFlow.OccurTime.Value, swapFlow.ClientId, swapFlow.UnderlyingCode, null, tradeIds);
            }
            var _swapFlow = DbContext.swap_flow.Where(x => x.trs_deal_id == swapFlow.trs_deal_id).FirstOrDefault();
            if (_swapFlow != null)
            {
                DbContext.swap_flow.Remove(_swapFlow);
                DbContext.SaveChanges();
                Task.Run(() =>
                {
                    RealtimePnlCalc.RealtimeSwapPosition(new OptUserInfo(0, "互换实时持仓服务", OptUserFrom.Service));
                });
            }
            hedgingOrderCancelResp.code = (int)HedingOrderCancelEnum.撤单成功;
            RebackExchangeTrade(trs_deal_no);
        }
        /// <summary>
        /// 删除对冲交易记录
        /// </summary>
        /// <param name="trs_deal_no"></param>
        private void RebackExchangeTrade(string trs_deal_no)
        {
            var extradeTrade = DbContext.ExchangeTrade.Where(x => x.TradeNumber == trs_deal_no).AsNoTracking().FirstOrDefault();
            if (extradeTrade == null)
            {
                return;
            }
            var service = new ExchangeTradeSaveService(UserInfo);
            service.InValidTrade(extradeTrade.id);
        }
    }
}