using MoreLinq.Extensions;
using Newtonsoft.Json;
using YLErp.BLL;
using YLErp.BLL.Eod;
using YLErp.DBModels.Enums;
using YLErp.Derivatives.Interest;
using YLErp.Helpers;
using YLErp.Modules.DataProviderModule;
using YLErp.Modules.EodModule;
using YLErp.Modules.SwapModule.Accrual;
using YLErp.Modules.SwapModule.FundingLegs;
using YLErp.Modules.SwapModule.Margin;
using YLErp.Modules.SwapModule.ReturnLegs;
using YLErp.Modules.TradeModule;
using YLErp.Modules.TradeModule.DealModule;
using YLErp.QdpModule;
namespace YLErp.Modules.SwapModule
{
public class SwapDealService : SwapTradeBaseService
{
private static readonly IYcLogger Logger = LogFactory.GetLogger(nameof(SwapDealService));
protected virtual bool TryGetFloatRate(DateTime valueDate, string underlyingCode, out double rate)
{
return EodPriceQueryService.TryGetPrice(valueDate, underlyingCode, out rate);
}
private IIndexFixer _indexFixer;
/// FR007 取价器，委托 TryGetFloatRate（保留 virtual 接缝供测试 stub）。
protected virtual IIndexFixer IndexFixer
=> _indexFixer ??= new SwapDealIndexFixer((d, c) =>
TryGetFloatRate(d, c, out double r) ? (true, r) : (false, 0d));
#region 可测试化接缝（Seams）——override 这些虚方法可在测试中替换 DB/外部调用，生产代码行为不变
// FindTrade 已上提到基类 SwapTradeBaseService（三子类实现一致，消除重复）
/// 添加资金记录（生产: AddClientCashInCashOut；测试: 计数并记录金额）
protected virtual int AddClientCash(trade td, double amount, string action, DateTime valueDate)
{
return AddClientCashInCashOut(td, amount, action, valueDate);
}
/// 保存互换/平仓事件（生产: 落库+建事件；测试: 收集 unwindData 入内存列表）。
/// 原 private 改 protected virtual，使测试 stub 可整体 override，规避内部 new SwapEventService 连库。
protected virtual long SaveSwapDeal(UnwindData unwindData, int eventType, int clientCashId, string eventResason = "", bool approve = false)
{
UnwindNormalizer.NormalizeNotionalValues(unwindData);
return SaveSwapDealInternal(unwindData, eventType, clientCashId, eventResason, approve);
}
// 待实现利息会进入 decimal(30,12) 日终快照；精度常量统一引用 InterestMath.FundingLegPrecision，消除重复定义。
private const int InterestCalculationPrecision = InterestMath.FundingLegPrecision;
// 客户现金在 SaveSwapDeal 之前创建，手工结算必须先收敛流水并重算汇总金额。
private void NormalizeManualSettlementAmounts(UnwindData unwindData, int eventType, string eventReason)
{
if (!UnwindNormalizer.NormalizeSettledInterestAmounts(unwindData.FlowEvents, eventType, eventReason))
{
return;
}
if (unwindData.FlowEvents.Any(x => !string.IsNullOrEmpty(x.UnderlyingCode)))
{
CalcCloseAmount(unwindData);
if (eventType == (int)SwapEventTypeEnum.互换)
{
unwindData.SwapMarginAmount = 0;
}
return;
}
unwindData.SwapCloseAmount = Math.Round(unwindData.SwapCloseAmount, ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
unwindData.SwapRealizedPnL = Math.Round(unwindData.SwapRealizedPnL, ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
}
/// 保存所有变更（生产: DbContext.SaveChanges；测试: 空操作）
protected virtual void SaveAllChanges()
{
DbContext.SaveChanges();
}
/// 在事务中执行（生产: BeginTransaction/Commit/Rollback；测试: 直接执行不包事务）
protected virtual void ExecuteInTransaction(Action action)
{
var trans = DbContext.Database.BeginTransaction();
try
{
action();
trans.Commit();
}
catch
{
trans.Rollback();
throw;
}
finally
{
trans.Dispose();
}
}
/// 保存互换交易资金记录（生产: new ClientCashInCashOutService；测试: 空操作）。
/// 仅 SwapUnwind 全平仓且 NeedOpenFee=false 时调用。
protected virtual void CallSaveSwapTradeClientCash(trade td, DateTime valueDate)
{
td.trade_extend = DbContext.trade_extend.FirstOrDefault(x => x.TradeId == td.id);
if (td.trade_extend != null && !td.trade_extend.ExtendObj.NeedOpenFee)
{
new ClientCashInCashOutService(this).SaveSwapTradeClientCash(td, td.TradePrice ?? 0, valueDate, 0);
}
}
/// 触发互换实时持仓计算（生产: Task.Run 异步 RealtimePnlCalc；测试: 空操作）。
/// 仅 SwapUnwind 成功后调用。
protected virtual void TriggerRealtimeSwapPosition()
{
Task.Run(() =>
{
try
{
RealtimePnlCalc.RealtimeSwapPosition(new OptUserInfo(0, "互换实时持仓服务", OptUserFrom.Service));
}
catch (Exception ex)
{
LogFactory.GetLogger().Error("互换实时持仓服务计算失败", ex);
}
});
}
/// 查找待审核的互换/平仓事件（生产: DbContext.swap_event 查询；测试: 返回内存对象）
protected virtual swap_event FindSwapEvent(int tradeId, int eventType)
{
return DbContext.swap_event
.Where(x => x.SwapTradeId == tradeId && !x.Invalid && x.EventType == eventType)
.OrderByDescending(o => o.id).FirstOrDefault();
}
/// 查找事件关联的流水事件（生产: DbContext.swap_flow_event 查询；测试: 返回内存列表）
protected virtual List FindFlowEventsByEventId(long eventId)
{
return DbContext.swap_flow_event.Where(x => x.EventId == eventId).ToList();
}
/// 平仓/互换审核的前置校验与状态设置（生产: new TradeUnwindService；测试: 空操作或计数）
protected virtual void CloseReCheckSetTrade(int swapTradeId, bool isSwap, bool needCheck)
{
new TradeUnwindService(this).CloseReCheck_SetTrade(swapTradeId, isSwap, needCheck);
}
protected virtual DateTime GetMaxIncomeValueDate(trade td)
{
return td.ExerciseDate.Value.AddDays(-1);
}
#endregion
public SwapDealService(OptUserInfo optUser) : base(optUser)
{
}
public SwapDealService(YLBaseService baseService) : base(baseService)
{
}
#region 前端盈亏只读校验（不阻断交易）
///
/// 用 FrontendCalcReference 公式重算盈亏，与前端传来的 unwindData 比对，
/// 差异 > 0.01 记 Error 日志。整体 try/catch 吞异常——校验自身错误绝不阻断交易。
///
/// 目的：前端保持快速反馈（用户改输入立即算），后端不替代前端，仅做合理性兜底，
/// 为将来公式统一积累"前后端差异"数据。
/// 核心比对逻辑已抽到 SwapFrontendPnlValidator.BuildFrontendValidationDiffs 纯函数，便于单测覆盖。
///
/// 前端算好传入的结算数据
/// true=结息页(income公式)，false=平仓页(unwind公式)
private void ValidateFrontendPnL(UnwindData unwindData, bool isIncome)
{
try
{
var diffs = SwapFrontendPnlValidator.BuildFrontendValidationDiffs(unwindData, isIncome);
if (diffs == null) return;
// 取浮动腿用于日志上下文（与原实现一致）
var floatLeg = unwindData.FlowEvents?.FirstOrDefault(x => !string.IsNullOrEmpty(x.UnderlyingCode));
foreach (var d in diffs)
{
Logger.Error($"[互换盈亏校验分歧] tradeId={unwindData.SwapTradeId} field={d.Field} frontend={d.FrontendValue} backend={d.BackendValue} diff={d.Delta} " +
$"floatLeg=[gross={floatLeg?.PosiGrossPrice} avg={floatLeg?.TradingAmountAvg} qty={floatLeg?.Quantity} payDir={floatLeg?.PayDirection} posType={floatLeg?.PositionType}]");
}
}
catch (Exception ex)
{
// 校验自身错误绝不阻断交易
Logger.Error($"[互换盈亏校验异常] tradeId={unwindData.SwapTradeId} isIncome={isIncome}", ex);
}
}
#endregion
///
/// 平仓初始化
///
///
///
///
public UnwindData InitUnwind(int tradeId)
{
var td = DbContext.trade.Find(tradeId);
var positions = DbContext.swap_position.ActiveByTrade(tradeId);
var um = DataCacheProvider.GetUnderlyingDataSource().GetData(td.UnderlyingCode);
bool commodity = ConsGlobal.InstrumentType.CalcTypeIsFutures(um.UnderlyingInstrumentType);
List eventTyps = new List() { (int)SwapEventTypeEnum.自动互换, (int)SwapEventTypeEnum.互换 };
var dealDate = valuedateBLL.ValueDate <= td.ExerciseDate.Value ? valuedateBLL.ValueDate : td.ExerciseDate.Value;
//CheckLastEod(dealDate, td.TradeDate.Value, tradeId); //去掉平仓收盘限制
var tradeExtend = DbContext.trade_extend.FirstOrDefault(x => x.TradeId == tradeId);
td.trade_extend = tradeExtend;
var position = positions.Where(x => !string.IsNullOrEmpty(x.UnderlyingCode) && !x.IsInitial).FirstOrDefault();
var oriPosition = positions.Where(x => !string.IsNullOrEmpty(x.UnderlyingCode) && x.IsInitial).FirstOrDefault();
var preDealDate = GetPreDealDate(tradeId, dealDate, eventTyps);
var hasProcess = HasTradeProcess();
swap_flow_event floatEvent = new swap_flow_event();
UnwindData unwindData = new UnwindData();
if (((valuedateBLL.SystemDate.CloseReCheck == 1) || (valuedateBLL.SystemDate.CloseReApprove == 1 && hasProcess)) && td.TradeStatus == ConsTrade.平仓待复核)
{
var swapEvent = GetSwapEvent(tradeId, (int)SwapEventTypeEnum.平仓);
if (swapEvent == null)
{
throw new Exception("该笔交易状态为平仓待复核，未找到相关记录，请检查该笔交易是否有效");
}
unwindData = swapEvent.unwindData;
}
else
{
unwindData.TradeStartDate = td.StartDate;
unwindData.CloseType = commodity ? 1 : 2;
unwindData.StartDate = td.TradeDate.Value;
if (preDealDate.HasValue)
{
unwindData.StartDate = preDealDate.Value;
}
unwindData.ValueDate = dealDate;
unwindData.UnwindDate = dealDate;
floatEvent.EventDate = dealDate;
floatEvent.UnwindDate = unwindData.UnwindDate;
floatEvent.PayDate = QdpCalendarHelper.GetNonHoliday(unwindData.UnwindDate.Value.AddDays(td.trade_extend.ExtendObj.SettlementRules));
unwindData.PayDate = floatEvent.PayDate;
floatEvent.SwapTradeId = tradeId;
floatEvent.SwapTradeNo = td.TradeNumber;
unwindData.SwapTradeId = tradeId;
unwindData.StructureType = td.StructureType;
unwindData.NotionalValue = Convert.ToDecimal(td.OriginalStockEqvNotional ?? 0);
unwindData.NotionalQty = positions.Where(x => x.IsInitial).Sum(s => s.PosiQuantity);
unwindData.PosiNotionalValue = Convert.ToDecimal(td.StockEqvNotional);
unwindData.PositionQty = position != null ? position.PosiQuantity : Convert.ToDecimal(td.TradeAmount);
unwindData.AnnualDays = tradeExtend == null ? 365 : tradeExtend.ExtendObj.AnnualDays;
unwindData.CloseMethod = (int)CloseMethodEnum.全部平仓;
// 占期初(original)语义(A)：默认"平掉剩余全部持仓" = 剩余名义本金/期初名义本金。
// 未平仓时 PosiNotionalValue==NotionalValue → 1（平100%）；部分平仓后自动变为剩余比例（如已平10%则默认90%）。
// 与互换/提前终止 InitIncome(L447) 保持一致。
unwindData.ClosePercent = CalcDefaultInitClosePercent(unwindData.NotionalValue, unwindData.PosiNotionalValue);
unwindData.CloseNotionalValue = unwindData.PosiNotionalValue;
unwindData.CloseQty = unwindData.PositionQty;
if (position != null)
{
floatEvent.PositionId = position.PositionId;
floatEvent.EventType = (int)SwapEventTypeEnum.平仓;
floatEvent.EventReason = "交易";
// 方案C：分红收益改由上一收盘日 EOD PosiDividendSum 提供（单一可信源），
// 前端 getDivindIn 不再覆盖；消除"期初持仓×totalInterest"对已平仓部分的重复计入。
// 同一 EOD 值取一次喂两栏：
// DividendIn = "浮动端平仓盈亏·分红"（本次动作要落袋的，落库后被前端按需展示）
// DividendPending = "待结算分红收益"（仍挂在账上、未来才结的存量 = PosiDividendSum 全量口径，
// 见 GetPreEodDividendSum 注释的口径论证；切勿改回硬0或分摊，会落库回归）
decimal preEodDividendSum = GetPreEodDividendSum(tradeId, position.PositionId, dealDate);
Logger.Info($"[分红-平仓预览] 方案C DividendIn=DividendPending=PosiDividendSum全量 tradeId={tradeId} positionId={position.PositionId} dealDate={dealDate:yyyy-MM-dd} 值={preEodDividendSum}");
floatEvent.DividendIn = preEodDividendSum;
floatEvent.DividendPending = preEodDividendSum;
floatEvent.UnderlyingCode = position.UnderlyingCode;
floatEvent.UnderlyingInstrumentType = position.UnderlyingInstrumentType;
floatEvent.CloseFee = 0;
floatEvent.BeforeCloseFee = oriPosition.PosiTradingFeePending;
floatEvent.TradingFee = TradingFeeCalc.CalcInitTradingFee(oriPosition, unwindData);
floatEvent.PosiTradingFeeUnit = oriPosition?.PosiTradingFeeUnit ?? 0;
floatEvent.PosiFeeType = oriPosition?.PosiFeeType ?? 0;
floatEvent.MarkClosePnl = 0;
floatEvent.PayDirection = position.PosiDirection;
floatEvent.PosiGrossPrice = position.PosiGrossPrice;
floatEvent.PosiNetPrice = position.PosiNetPrice;
floatEvent.TradingAmountNetAvg = position.PosiNetNoFeePrice;
floatEvent.PositionType = position.PositionType;
floatEvent.TradingAmountNetFeeAvg = position.PosiNetFeePrice;
floatEvent.Quantity = position.PosiQuantity;
floatEvent.PositionQty = 0;
floatEvent.ContractSize = position.ContractSize;
floatEvent.TradingAmount = floatEvent.Quantity * floatEvent.ContractSize;
var ratio = -DirectionRatio.ReceivePay(position.PosiDirection);
floatEvent.TradingFeePending = TradingFeeCalc.CalcInitTradingFeePending(oriPosition, position, unwindData);
floatEvent.DataState = (int)SwapFlowDateStateEnum.完成;
floatEvent.InterestMode = position.InterestMode;
floatEvent.ClientId = td.ClientId;
floatEvent.SetOpt(UserInfo);
}
unwindData.FlowEvents.Add(floatEvent);
}
return unwindData;
}
///
/// 校验上日是否收盘
///
///
public void CheckEodTrade(int tradeId)
{
var td = DbContext.trade.Find(tradeId);
var dealDate = valuedateBLL.ValueDate <= td.ExerciseDate.Value ? valuedateBLL.ValueDate : td.ExerciseDate.Value;
//CheckLastEod(dealDate, td.StartDate.Value, tradeId);
}
///
/// 校验收益结算操作（不检查收盘限制）
///
///
public void CheckEodTradeForIncome(int tradeId)
{
var td = DbContext.trade.Find(tradeId);
// 收益结算不检查收盘限制，只检查交易状态
if (td.TradeType != "收益互换")
{
throw new ServiceException("该交易不是收益互换类型");
}
if (td.ValidState == "InValid")
{
throw new ServiceException("该交易已无效");
}
if (td.TradeStatus != ConsTrade.确认成交 && td.TradeStatus != ConsTrade.提前终止拒绝)
{
throw new ServiceException($"该交易状态为【{td.TradeStatus}】，无法进行收益结算");
}
}
///
/// 多空组合 平仓初始化
///
///
///
///
///
/// 平仓初始化
///
///
///
///
public UnwindData InitIncome(int tradeId)
{
var checkEventTypes = new List() { (int)SwapEventTypeEnum.互换, (int)SwapEventTypeEnum.自动互换 };
var td = DbContext.trade.Find(tradeId);
var positions = DbContext.swap_position.ActiveByTrade(tradeId);
var um = DataCacheProvider.GetUnderlyingDataSource().GetData(td.UnderlyingCode);
List eventTypes = new List() { (int)SwapFlowEventTypeEnum.互换, (int)SwapFlowEventTypeEnum.自动互换 };
var maxIncomeValueDate = GetMaxIncomeValueDate(td);
var dealDate = valuedateBLL.ValueDate.Date > maxIncomeValueDate.Date ? maxIncomeValueDate : valuedateBLL.ValueDate;
// 收益结算不检查收盘限制
var tradeExtend = DbContext.trade_extend.FirstOrDefault(x => x.TradeId == tradeId);
td.trade_extend = tradeExtend;
var position = positions.Where(x => !string.IsNullOrEmpty(x.UnderlyingCode) && !x.IsInitial).FirstOrDefault();
//var preSettleDate = CheckLastEod(dealDate, td.StartDate.Value, tradeId);//上一交易日期
var preDealDate = GetPreDealDate(tradeId, dealDate, eventTypes);
var hasProcess = HasTradeProcess();
swap_flow_event floatEvent = new swap_flow_event();
UnwindData unwindData = new UnwindData();
if (((valuedateBLL.SystemDate.CloseReCheck == 1) || (valuedateBLL.SystemDate.CloseReApprove == 1 && hasProcess)) && td.TradeStatus == ConsTrade.互换待复核)
{
var swapEvent = GetSwapEvent(tradeId, (int)SwapEventTypeEnum.互换);
if (swapEvent == null)
{
throw new Exception("该笔交易状态为平仓待复核，未找到相关记录，请检查该笔交易是否有效");
}
unwindData = swapEvent.unwindData;
}
else
{
unwindData.StartDate = td.TradeDate.Value;
if (preDealDate.HasValue)
{
unwindData.StartDate = preDealDate.Value;
}
unwindData.TradeStartDate = td.StartDate;
unwindData.ValueDate = dealDate;
unwindData.UnwindDate = dealDate;
floatEvent.UnwindDate = unwindData.UnwindDate;
floatEvent.EventDate = dealDate;
unwindData.PayDate = valuedateBLL.ValueDate;
floatEvent.PayDate = unwindData.PayDate;
floatEvent.SwapTradeId = tradeId;
floatEvent.SwapTradeNo = td.TradeNumber;
floatEvent.EventType = (int)SwapFlowEventTypeEnum.互换;
floatEvent.EventReason = "交易";
unwindData.SwapTradeId = tradeId;
unwindData.StructureType = td.StructureType;
unwindData.NotionalValue = Convert.ToDecimal(td.OriginalStockEqvNotional ?? 0);
unwindData.NotionalQty = positions.Where(x => x.IsInitial).Sum(s => s.PosiQuantity);
unwindData.PosiNotionalValue = Convert.ToDecimal(td.StockEqvNotional);
unwindData.PositionQty = position != null ? position.PosiQuantity : Convert.ToDecimal(td.TradeAmount);
unwindData.AnnualDays = tradeExtend == null ? 365 : tradeExtend.ExtendObj.AnnualDays;
unwindData.ClosePercent = unwindData.PosiNotionalValue / unwindData.NotionalValue;
unwindData.CloseNotionalValue = unwindData.PosiNotionalValue;
if (position != null)
{
floatEvent.PositionId = position.PositionId;
// 方案C：分红收益改由上一收盘日 EOD PosiDividendSum 提供（单一可信源），
// 前端 getDivindIn 不再覆盖；消除"期初持仓×totalInterest"对已平仓部分的重复计入。
decimal preEodDividendSum = GetPreEodDividendSum(tradeId, position.PositionId, dealDate);
Logger.Info($"[分红-收益结算] DividendIn=PosiDividendSum全量 tradeId={tradeId} positionId={position.PositionId} dealDate={dealDate:yyyy-MM-dd} 值={preEodDividendSum}");
floatEvent.DividendIn = preEodDividendSum;
floatEvent.UnderlyingCode = position.UnderlyingCode;
floatEvent.UnderlyingInstrumentType = position.UnderlyingInstrumentType;
floatEvent.CloseFee = 0;
floatEvent.MarkClosePnl = 0;
floatEvent.PayDirection = position.PosiDirection;
floatEvent.PosiGrossPrice = position.PosiGrossPrice;
floatEvent.PosiNetPrice = position.PosiNetPrice;
// 注意：TradingAmountNetAvg 字段名为"成交净价(期末语义)"，但收益结算/平仓初始化时装入的是期初净价(PosiNetNoFeePrice)，前端展示期初净价时取此字段
floatEvent.TradingAmountNetAvg = position.PosiNetNoFeePrice;
floatEvent.TradingAmountNetFeeAvg = position.PosiNetFeePrice;
floatEvent.PositionType = position.PositionType;
floatEvent.Quantity = position.PosiQuantity;
floatEvent.PositionQty = 0;
floatEvent.ContractSize = position.ContractSize;
floatEvent.TradingAmount = floatEvent.Quantity * floatEvent.ContractSize;
floatEvent.ClientId = td.ClientId;
floatEvent.DataState = (int)SwapFlowDateStateEnum.完成;
}
unwindData.FlowEvents.Add(floatEvent);
}
unwindData.MaxIncomeValueDate = maxIncomeValueDate;
return unwindData;
}
///
/// 获取平仓利息端信息
///
/// 平仓日期
/// 交易id
/// 平仓比例
///
///
public List GetUnwindInterests(DateTime valueDate, DateTime unwindDate, int tradeId, decimal closePercent, int eventType)
{
List interests = new List();
if (closePercent > 1)
{
closePercent = 1;//防篡改
}
else if (closePercent < 0)
{
closePercent = 0;
}
var td = DbContext.trade.Find(tradeId);
if (td == null)
{
throw new ServiceException("未找到交易信息");
}
var allpositions = DbContext.swap_position.ActiveByTrade(tradeId).ToList();
var origPositions = allpositions.Where(x => x.IsInitial).ToList();
var realPostitions = allpositions.Where(x => !x.IsInitial).ToList();
// 根因修复(多次部分平仓预付金返还错误)：见 ResolveInterestLegPositions 注释。
// 迭代源仍用 origPositions(保留 orig.id → eod_swap_position.PositionId 的日终匹配)，
// 仅对预付金腿以实时腿的剩余本金克隆覆盖，故此处不改任何日终匹配行为。
var positions = ResolveInterestLegPositions(origPositions, realPostitions);
var tradeExtend = DbContext.trade_extend.FirstOrDefault(x => x.TradeId == tradeId);
List eventTypes = new List() { (int)SwapEventTypeEnum.平仓, (int)SwapEventTypeEnum.互换, (int)SwapEventTypeEnum.自动互换 };
var lastEod = DbContext.eod_swap.Where(x => x.ValueDate < unwindDate && x.SwapTradeId == tradeId).OrderByDescending(o => o.ValueDate).FirstOrDefault();
var _preSetteDate = lastEod == null ? unwindDate.AddDays(-1) : lastEod.ValueDate;
List lastEodPositions = new SwapEodPositionService(this).GetPreEodPositions(tradeId, _preSetteDate);//上一交易数据
var stockEqvNotional = realPostitions.Where(x => x.PosiDirection > 0).Sum(s => s.PosiNotionalValue); // 当前平仓前的实时剩余本金
var posiNotionalValue = stockEqvNotional * closePercent;// 本次平仓名义本金
var orginPv = ResolveUnwindPreviousNotional(lastEod, lastEodPositions, stockEqvNotional); // 上一日终的浮动端本金
var closeList = DbContext.swap_flow_event.Where(x => x.SwapTradeId == tradeId
&& x.UnwindDate == unwindDate
&& eventTypes.Contains(x.EventType)
&& x.DataState == (int)SwapFlowDateStateEnum.完成).ToList();
bool tdClose = closeList.Count > 0;
// 显式入口：平仓前剩余本金 + 实际平掉额 + B语义比例，盘中重放（语义见 InterestCalcRequest.IntradayUnwind）
interests = GetIntradayUnwindInterests(InterestCalcRequest.IntradayUnwind(
td, tradeExtend, valueDate, unwindDate, lastEodPositions, positions,
stockEqvNotional, posiNotionalValue,
closePercent, eventType, tdClose, orginPv, add: true, newCalcLast: false, closeList));
return interests;
}
///
/// 解析利息腿(PosiDirection==0)持仓，供 GetUnwindInterests 使用。抽为纯函数以便无库单测。
/// 根因(多次部分平仓预付金返还错误)：预付金腿(初始/追加)的"当前剩余本金"存于实时持仓
/// realPositions.InterestPrincipalFix，每次平仓由 UpdateInitalPosition 递减；而原始腿
/// origPositions(IsInitial=1)的 InterestPrincipalFix 恒为初始值。GetInterests 算
/// closePrincipal = Fix × closePercent 时读 position.InterestPrincipalFix，若沿用原始腿，
/// 会在多次部分平仓后仍返还/计算初始本金(如始终 99000)。
/// 修复：迭代源仍用 origPositions(保留 orig.id → eod_swap_position.PositionId 的日终匹配，
/// 全库实测 eod 均按 orig.id 归档；若换 realPositions 会破坏 preEod 匹配导致利息重算错误)，仅对预付金腿
/// Clone 覆盖其本金值为实时腿的剩余本金。real 与 orig 通过 real.PositionId == orig.id 精确 1:1 关联。
/// 首次平仓时 orig==real 行为不变；仅在发生过部分平仓后 real≠orig 时用实时腿本金纠正。
///
/// 原始腿(IsInitial=1)全集
/// 实时腿(IsInitial=0)全集，其 PositionId 指向对应 orig 的 id
/// 利息腿(PosiDirection==0)列表：预付金腿本金已对齐实时剩余本金，其余保持原始腿
public static List ResolveInterestLegPositions(List origPositions, List realPositions)
{
realPositions ??= new List();
return origPositions.Where(x => x.PosiDirection == 0).Select(p =>
{
if (MarginModes.Contains(p.InterestMode))
{
var realLeg = realPositions.FirstOrDefault(r => r.PositionId == p.id);
if (realLeg != null && realLeg.InterestPrincipalFix != p.InterestPrincipalFix)
{
var clone = p.Clone();
clone.InterestPrincipalFix = realLeg.InterestPrincipalFix;
return clone;
}
}
return p;
}).ToList();
}
///
/// 计算预付金腿当前真实持仓 （当前持仓+未来持仓）
///
///
///
///
///
///
public static List ResolveInterestLegPositionsAsOf(
List origPositions, List realPositions,
IEnumerable completedFlowEvents, DateTime settleDate)
{
realPositions ??= new List();
var futureFlows = (completedFlowEvents ?? Enumerable.Empty())
.Where(x => x.EventType == (int)SwapEventTypeEnum.平仓 && x.EventDate > settleDate)
.ToList();
var originalNotional = origPositions.Where(x => x.PosiDirection > 0)
.Sum(x => x.PosiNotionalValue);
var futureCloseNotional = futureFlows.Where(x => x.PositionType > 0)
.Sum(x => x.TradingAmount);
var hasNotionalFlows = futureCloseNotional > 0 && originalNotional > 0;
var futureClosePrincipal = futureFlows
.Where(x => MarginModes.Contains(x.InterestMode))
.GroupBy(x => x.PositionId)
.ToDictionary(x => x.Key, x => x.Sum(v => v.InterestPrincipal));
return origPositions.Where(x => x.PosiDirection == 0).Select(p =>
{
if (MarginModes.Contains(p.InterestMode))
{
var realLeg = realPositions.FirstOrDefault(r => r.PositionId == p.id);
if (realLeg != null)
{
var futurePrincipal = hasNotionalFlows
? p.InterestPrincipalFix * futureCloseNotional / originalNotional
: futureClosePrincipal.TryGetValue(p.id, out var flowPrincipal) ? flowPrincipal : 0m;
var asOfPrincipal = realLeg.InterestPrincipalFix + futurePrincipal;
asOfPrincipal = Math.Min(p.InterestPrincipalFix, Math.Max(0m, asOfPrincipal));
if (asOfPrincipal != p.InterestPrincipalFix)
{
var clone = p.Clone();
clone.InterestPrincipalFix = asOfPrincipal;
return clone;
}
}
}
return p;
}).ToList();
}
public static decimal ResolveUnwindPreviousNotional(
eod_swap lastEod,
IEnumerable lastEodPositions,
decimal currentNotional)
=> ClosePercentMath.ResolveUnwindPreviousNotional(lastEod, lastEodPositions, currentNotional);
///
/// 获取利息腿"已通过历史互换结出的累计利息"（用于复利重算时扣除，类比分红的 CalcConsumedDividend）。
/// 数据源为事件级 swap_flow_event.InterestAmount（互换/自动互换 完成态事件，互换当时即落库，不依赖日终归档）。
///
/// 交易id
/// 利息腿id
/// 结算日（不含，仅汇总此日之前的历史已结利息；当日事件由 closeList 去重逻辑单独处理）
/// 历史已结利息累计金额（绝对值）
public virtual decimal GetConsumedInterest(int tradeId, long positionId, DateTime beforeDate)
{
List swapEventTypes = new List() { (int)SwapEventTypeEnum.互换, (int)SwapEventTypeEnum.自动互换 };
var consumed = DbContext.swap_flow_event
.Where(x => x.SwapTradeId == tradeId && x.PositionId == positionId
&& swapEventTypes.Contains(x.EventType)
&& x.DataState == (int)SwapFlowDateStateEnum.完成
&& x.EventDate < beforeDate)
.Sum(s => (decimal?)s.InterestAmount) ?? 0m;
return consumed;
}
///
/// 计算利息腿计息详细
///
/// 交易
/// 交易扩展数据
/// 操作日期
/// 上一日终持仓
/// 期初利率端
/// 持仓名义本金
/// 平仓名义本金
///
///
///
///
///
///
/// 【盘中平仓/互换结息】显式入口——GetInterests(settment:false) 盘中语义的具名封装（2026-08 显式化重构）。
/// 语义契约见 InterestCalcRequest.IntradayUnwind 工厂注释；计息走 CalcUnwindInterest 全区间重放。
///
public List GetIntradayUnwindInterests(InterestCalcRequest req)
=> GetInterests(req.Td, req.TradeExtend, req.ValueDate, req.UnwindDate, req.EodPositions, req.Positions,
req.PosiNotionalValue, req.ClosePosiNotionalValue,
req.ClosePercent, req.EventType, req.TdClose,
req.OrginPv, req.Add, settment: false, req.NewCalcLast, req.CloseList);
public List GetInterests(
trade td,
trade_extend tradeExtend,
DateTime valueDate,
DateTime unwindDate,
List eodPositions,
List positions,
decimal posiNotionalValue,
decimal closePosiNotionalValue,
decimal closePrecent,
int eventType,
bool tdClose,
decimal orginPv,
bool add = false,
bool settment = true,
bool newCalcLast= false,
List closeList = null)
{
List interests = new List();
var annualDays = tradeExtend == null ? 365 : tradeExtend.ExtendObj.AnnualDays;
bool calcFirst = tradeExtend?.ExtendObj.CalcFirst ?? true;
bool calcLast = tradeExtend?.ExtendObj.CalcLast ?? true;
// 计息到尾日(含平仓场景覆盖)：交易本身算尾 或 本次平仓指定算尾(newCalcLast)
bool effectiveCalcLast = calcLast || newCalcLast;
foreach (var position in positions)
{
// 初始化持仓信息
var preEodPosition = eodPositions.FirstOrDefault(x => x.PositionId == position.id) ?? new eod_swap_position();
var positionClone = position.Clone();
DateTime? preDealDate = preEodPosition.id != 0 ? preEodPosition.ValueDate : null;
// 计算计息区间
int interestPeriod = position.interest_rest_days ?? 1;
// true=计息窗口为空（不计利息，利率与金额归零；典型触发=不算头首日/不算尾到期日回拨翻转，
// 判定只看日期窗口与事件类型无关；当日已结息日期相等时窗口非空，归零由下方 closeList 净额层处理）
bool interestWindowEmpty = InitInterestDate(unwindDate, preDealDate, td, tdClose, out DateTime startDate, out DateTime endDate);
// 获取利率（保证金/融资腿共用：SwapIntervalList 取当日适用固定利率 + 精度收口）
decimal rate = Math.Round(GetFixedRate(position, unwindDate), InterestCalculationPrecision, MidpointRounding.AwayFromZero); // 做精度调整 原数据有精度误差
// ── 边界隔离：保证金腿(5/6)在循环最外层路由，后续融资腿分支树不感知保证金概念 ──
// 有意跳过 GetFloatRate：CalcMarginInterest 纯固定利率(FundingLegRate.Fixed)且 FloatRate 恒 0，
// 浮动取价/回写对保证金无意义；即使脏数据填了 FloatRateUnderlyingCode 且缺价，也不应阻断保证金结算。
if (MarginModes.Contains(position.InterestMode))
{
positionClone.InterestDirection = MarginCalc.FlipDirection(position.InterestDirection);
// 保证金腿: 计息基数 = InterestPrincipalFix(保证金余额)，无融资腿差分公式与 orginPv 维度 hack
interests.Add(CalcMarginInterest(td, valueDate, endDate, positionClone, rate,
position.InterestPrincipalFix * closePrecent, position.InterestPrincipalFix,
closePrecent, annualDays, calcFirst, effectiveCalcLast, preEodPosition, eventType, add, settment, interestWindowEmpty));
continue;
}
// 计算名义本金（以下仅融资腿 1/2/9：走策略工厂）
var mode = (InterestModeEnum)position.InterestMode;
var r = FundingLegStrategyFactory.Get(mode)
.CalcNotional(position.InterestPrincipalFix, posiNotionalValue, closePrecent);
decimal closePrincipal = r.ClosePrincipal;
decimal posiPrincipal = r.PosiPrincipal;
decimal newClosePercent = r.ClosePercent;
// 根因位置：SwapEodPositionService.SaveAutoEodWithCloseInterestPosition 在平仓后收盘时传入
// “收盘后剩余本金 + closePercent=1”，与盘中“平仓前本金 + 实际关闭比例”不是同一语义。
// GetInterests 同时被盘中试算和 EOD 平仓后收盘调用：后者传入的
// posiNotionalValue 是收盘后的剩余本金，closePosiNotionalValue 才是本次实际平掉的本金。
// 例如平仓前 100、平掉 30、收盘后剩余 70 时，EOD 传入 posi=70、close=30、closePercent=1。
// 模式2(合约名义本金规模)的本次结息本金必须始终是实际平仓额，因此无条件覆盖，
// 否则会错误地用剩余 70 结算本次平掉的 30。模式9(标的期初全价)的部分平仓
// 仍保留既有的剩余/复利动态本金承接逻辑；仅最终全平时 posi=0，才覆盖以避免结息本金为 0。
if (mode == InterestModeEnum.合约名义本金规模
|| (mode == InterestModeEnum.标的期初全价
&& posiNotionalValue == 0m))
{
closePrincipal = closePosiNotionalValue;
}
decimal floatRate = GetFloatRate(position, preEodPosition, td.StartDate.Value, endDate, interestPeriod, interestWindowEmpty, positionClone, effectiveCalcLast);
// 根据场景计算利息
if (settment)
{
// 收盘归档场景，使用 CalcEodInterest
interests.Add(CalcEodInterest(td, valueDate, positionClone, rate, floatRate, closePrincipal, posiPrincipal, annualDays, calcFirst, calcLast, preEodPosition, eventType, add));
}
else
{
// 盘中互换场景，使用 CalcUnwindInterest
// 取历史已结利息（事件级，互换当时落库），供复利重算扣除（仅复利需要；单利基于日终快照自带状态）
var consumedInterest = position.InterestType == (int)InterestTypeEnum.复利
? GetConsumedInterest(td.id, position.id, endDate)
: 0m;
interests.Add(CalcUnwindInterest(td, valueDate, endDate, positionClone, rate, floatRate, posiPrincipal,
closePrincipal, newClosePercent, annualDays, preEodPosition, eventType, add, interestWindowEmpty, orginPv, calcFirst,
effectiveCalcLast, consumedInterest));
}
}
//当日有平仓或互换记录时，避免重复结算
if (closeList != null && closeList.Count > 0)
{
foreach (var item in interests)
{
var closeEvent = closeList.Where(x => x.PositionId == item.PositionId);
if (eventType == (int)SwapEventTypeEnum.互换 || eventType == (int)SwapEventTypeEnum.自动互换)
{
// 互换：该仓位当天有同类型的完成事件，直接归0
var swapCloseEvent = closeEvent.Where(x => x.EventType == eventType);
if (swapCloseEvent.Any())
{
item.InterestAmount = 0;
item.TdInterestAmount = 0;
item.InterestClosePnL = 0;
}
}
else if (!effectiveCalcLast)
{
// 平仓不算尾：扣除已结算的利息（算尾时利息已包含关闭日，无重叠）
var closePnl = closeEvent.Sum(s => s.InterestClosePnL);
var closeAmount = closeEvent.Sum(s => s.InterestAmount);
var closeTdAmount = closeEvent.Sum(s => s.TdInterestAmount);
item.InterestAmount = item.InterestAmount - closeAmount;
item.TdInterestAmount = item.TdInterestAmount - closeTdAmount;
item.InterestClosePnL = item.InterestClosePnL - closePnl;
}
}
}
return interests;
}
///
/// 平仓比例口径转换（解决"显示占期初 / 计算占剩余"双语义问题）。
/// 前端与事件列表展示用"占期初(original)"语义(A)；后端计息基数计算 / 费用递减 /
/// 全平判定均按"占剩余(remaining)"语义(B)消费。
/// A → B：B = A × 期初名义本金(NotionalValue) / 剩余名义本金(PosiNotionalValue)，并 cap 到 1。
/// B → A：A = B × 剩余名义本金 / 期初名义本金。
/// 分母为 0（无持仓等异常场景）时原样返回，避免除零。
///
public static decimal ToRemainingClosePercent(decimal originalClosePercent, decimal notionalValue, decimal posiNotionalValue)
=> ClosePercentMath.ToRemainingClosePercent(originalClosePercent, notionalValue, posiNotionalValue);
///
/// B(占剩余) → A(占期初)，用于落库 / 事件列表展示还原。见 ToRemainingClosePercent。
///
public static decimal ToOriginalClosePercent(decimal remainingClosePercent, decimal notionalValue, decimal posiNotionalValue)
=> ClosePercentMath.ToOriginalClosePercent(remainingClosePercent, notionalValue, posiNotionalValue);
///
/// 计算 InitUnwind 默认占期初(A)平仓比例 = PosiNotionalValue / NotionalValue。
///
public static decimal CalcDefaultInitClosePercent(decimal notionalValue, decimal posiNotionalValue)
=> ClosePercentMath.CalcDefaultInitClosePercent(notionalValue, posiNotionalValue);
///
/// 读取"上一收盘日"浮动腿的待实现分红（eod_swap_position.PosiDividendSum），
/// 用于平仓/互换预览页展示"浮动端平仓盈亏·分红(DividendIn)" 与 "待结算分红收益(DividendPending)"。
/// 方案C：替代前端 totalInterest × 期初持仓 的重算——后者会把登记日前已平仓、
/// 不享有该笔分红的部分重复计入（GLMS-20260105-0004 误显 -36,160）。
/// EOD 的 PosiDividendSum 已按"实际持仓递推 + 当日实现扣除"算出待实现分红，
/// 是单一可信源。
/// 复用 GetUnwindInterests(cs:624-626) 的"上一 EOD 日期"推导：取 eod_swap 中
/// ValueDate < dealDate 的最大日期，无则 dealDate.AddDays(-1)；再经
/// SwapEodPositionService.GetPreEodPositions 取该日持仓，匹配 PositionId。
/// 抽为 protected virtual：与 GetMaxIncomeValueDate 一致，便于测试替身覆写、
/// 也兼容无 EOD 的边界（返回 0，与历史 DividendIn=0 行为一致）。
///
/// 上一收盘日该浮动腿的待实现分红；无 EOD 记录返回 0
///
/// 【口径论证·勿改】为什么 DividendPending 也用本方法的全量值（非分摊、非硬0）：
/// 1. 字段语义直接对应：EOD PosiDividendSum 的 DisplayName="浮动端平仓盈亏·分红未实现"
/// (EodSwapPosition.cs:186)，递推式 PosiDividendSum=前日+当日新计-当日实现
/// (SwapEodPositionService.cs:1825)，即"扣过当日实现后、还挂在账上未来才结的存量"。
/// 前端列"待结算分红收益"(SwapflowList.js:561) 字面就是同一回事 → 直接取 PosiDividendSum。
/// 2. 是"存量"非"流量"：DividendPending 描述的是"账上还欠多少"（与本次平仓比例无关的总额），
/// 而 DividendIn 才是"本次动作落袋多少"。两者口径本就不同，各自正确。若把 DividendPending 改成
/// 按本次平仓比例分摊，会把"存量"误当"流量"，与列名"待结算"矛盾。
/// 3. 历史教训：方案C 初版曾把前端 DividendPending 硬编码 0（commit e3c473ba），因测试交易
/// PosiDividendSum 恰好=0（3/2 已全额互换）而测试通过、掩盖问题。但对 PosiDividendSum≠0 的部分
/// 平仓交易，硬0 会落库（SwapFlowEventService.cs:588 冲账取负写入 swap_flow_event.DividendPending）
/// 并在事件列表"待结算分红收益"列显示错误的 0 —— 这是确定的回归。故本方法返回值同时喂两栏，
/// 前端不得再覆盖。例外：互换页 DividendPending 保持 0（互换语义=全量结清，结清后待结算归0）。
///
protected virtual decimal GetPreEodDividendSum(int tradeId, long positionId, DateTime dealDate)
{
var preEod = GetPreEodPositionByDate(tradeId, positionId, dealDate);
var sum = preEod == null ? 0m : preEod.PosiDividendSum;
Logger.Info($"[分红-读取] GetPreEodDividendSum tradeId={tradeId} positionId={positionId} dealDate={dealDate:yyyy-MM-dd} 取EOD日期={(preEod?.ValueDate):yyyy-MM-dd} PosiDividendSum={sum}");
return sum;
}
///
/// 取 dealDate 对应"上一收盘日"持仓的累计分红快照。
/// GLMS-20260105-0006：登记日当天手动平仓/互换时，当日 EOD 快照已含分红，应取到当日而非 T-1。
/// 故由 ValueDate 严格小于 dealDate 改为 小于等于：当日 EOD 存在则读当日，否则回退上一收盘日（原口径不变）。
///
protected virtual eod_swap_position GetPreEodPositionByDate(int tradeId, long positionId, DateTime dealDate)
{
var lastEod = QueryPreEodSwaps(tradeId)
.Where(x => x.ValueDate <= dealDate)
.OrderByDescending(o => o.ValueDate).FirstOrDefault();
var preEodDate = lastEod == null ? dealDate.AddDays(-1) : lastEod.ValueDate;
Logger.Info($"[分红-快照定位] GetPreEodPositionByDate tradeId={tradeId} positionId={positionId} dealDate={dealDate:yyyy-MM-dd} 取<=当日EOD, 命中日期={(lastEod?.ValueDate):yyyy-MM-dd}, 回退={lastEod == null}");
return QueryPreEodPosition(tradeId, positionId, preEodDate);
}
/// 可测性 seam：返回某交易的全部 eod_swap 行（不做日期过滤）。测试可 override 注入内存数据。
protected virtual IQueryable QueryPreEodSwaps(int tradeId)
=> DbContext.eod_swap.Where(x => x.SwapTradeId == tradeId);
/// 可测性 seam：取指定收盘日的持仓累计分红快照。测试可 override 注入内存数据。
protected virtual eod_swap_position QueryPreEodPosition(int tradeId, long positionId, DateTime valueDate)
=> new SwapEodPositionService(this)
.GetPreEodPositions(tradeId, valueDate)
.FirstOrDefault(x => x.PositionId == positionId);
///
/// 获取固定利率
///
private decimal GetFixedRate(swap_position position, DateTime startDate)
{
var swapIntervalToday = position.SwapIntervalList?.Where(x => x.Date <= startDate).OrderByDescending(o => o.Date).FirstOrDefault();
if (swapIntervalToday != null) return swapIntervalToday.Rate;
var nextInterval = position.SwapIntervalList?.Where(x => x.Date > startDate).OrderBy(o => o.Date).FirstOrDefault();
return nextInterval?.Rate ?? position.InterestRateDefault;
}
///
/// 重置日判定：自锚点日起每 period 天一遇，锚点当日即首个重置日（(日-锚点)%period==0）。
/// EQD-6968 取价依赖三判定之一。锚点口径注记：GetFloatRate 传交易起始日 td.StartDate，
/// 分段重放/当日归周期判定传 position.PosiStartDate——非初始持仓(部分平仓剩余仓)两锚点可能不同，
/// 本方法只收口公式、不统一锚点（统一属行为变更，需业务定调）。
/// SwapEodPositionService 的"持仓延续腿重置日再定盘"亦用本判定（td.StartDate 锚点）。
///
internal static bool IsResetDay(DateTime date, DateTime anchorDate, int period)
=> (date - anchorDate).Days % period == 0;
///
/// 获取浮动利率
///
private decimal GetFloatRate(swap_position position, eod_swap_position preEod, DateTime startDate, DateTime endDate, int period, bool interestWindowEmpty, swap_position positionClone, bool calcLast = true)
{
if (string.IsNullOrEmpty(position.FloatRateUnderlyingCode)) return position.FloatRate;
int days = (endDate - startDate).Days;
bool isResetDay = IsResetDay(endDate, startDate, period);
// 重置日恰为到期日(endDate)时，取价日=endDate；否则=startDate（原逻辑）。
DateTime rateDate = IndexFixerBase.GetFixingDate(
isResetDay ? endDate : startDate, position.interest_rule);
// 历史上有"取错重置日利率"的线上 bug，取价决策必须常驻落盘（SwapCalcTrace.Critical 无条件 Info）。
SwapCalcTrace.Critical(
$"FIX GetFloatRate p{position.id} [{startDate:yyyy-MM-dd}→{endDate:yyyy-MM-dd}] days={days} period={period} " +
$"重置日={isResetDay} rule={position.interest_rule} 取价日={rateDate:yyyy-MM-dd} calcLast={calcLast} " +
$"preEod={(preEod.id != 0 ? $"{preEod.ValueDate:yyyy-MM-dd}:{preEod.FloatRate:P6}" : "无")}");
if (preEod.id != 0 && !isResetDay)
{
SwapCalcTrace.Critical($"FIX GetFloatRate p{position.id} 非重置日→沿用昨日终FloatRate={preEod.FloatRate:P6}");
position.FloatRate = positionClone.FloatRate = preEod.FloatRate;
return preEod.FloatRate;
}
// EQD-6968 口径自洽化：不算尾(calcLast=false)时 endDate 当天不计息，其定盘一概不取
// （有价也不取）——事件/回写利率与金额同源（末段已消费利率），杜绝"上午/下午落库利率不同"。
// 剩余持仓的新周期利率由 SwapEodPositionService 的"重置日再定盘"显式获取，不靠此处顺带。
if (!interestWindowEmpty && !calcLast && isResetDay)
{
var keptNoFetch = preEod.id != 0 ? preEod.FloatRate : position.FloatRate;
SwapCalcTrace.Critical(
$"FIX GetFloatRate p{position.id} 不算尾重置日→不取尾日定盘，沿用已有利率={keptNoFetch:P6}(来源={(preEod.id != 0 ? "preEod.FloatRate" : "position.FloatRate")})");
return keptNoFetch;
}
if (IndexFixer.TryGetFixing(rateDate, position.FloatRateUnderlyingCode, out decimal rate))
{
SwapCalcTrace.Critical($"FIX GetFloatRate p{position.id} 重置日→取{rateDate:yyyy-MM-dd}定盘={rate:P6}");
position.FloatRate = positionClone.FloatRate = rate;
return position.FloatRate;
}
if (!interestWindowEmpty)
{
if (calcLast)
{
SwapCalcTrace.Critical($"FIX GetFloatRate p{position.id} {rateDate:yyyy-MM-dd}缺价且算尾→抛异常拦截");
throw new Exception($"获取不到{position.FloatRateUnderlyingCode}在{rateDate:yyyy年MM月dd日}的价格");
}
// 算头不算尾(calcLast=false)：endDate 当天不计息，其 FR007 利率不参与计息，
// 缺价时直接沿用已有利率，不回退取其他日期利率，不告警。
var kept = preEod.id != 0 ? preEod.FloatRate : position.FloatRate;
SwapCalcTrace.Critical(
$"FIX GetFloatRate p{position.id} {rateDate:yyyy-MM-dd}缺价且不算尾→沿用已有利率={kept:P6}(来源={(preEod.id != 0 ? "preEod.FloatRate" : "position.FloatRate")})");
return kept;
}
SwapCalcTrace.Critical($"FIX GetFloatRate p{position.id} 计息窗口为空→利率不参与，返回0");
return 0m;
}
///
/// 计算收盘利息（EOD）
///
private swap_flow_event CalcEodInterest(trade td, DateTime valueDate, swap_position position, decimal rate, decimal floatRate, decimal closePrincipal, decimal posiPrincipal, int annualDays, bool calcFirst, bool calcLast, eod_swap_position preEod, int eventType, bool add)
{
// 判断当日是否计息：首日不算头或到期日不算尾则不计息
bool calcToday = true;
if (calcFirst == false && valueDate == td.StartDate.Value) calcToday = false; // 首日不算头
if (calcLast == false && valueDate == td.ExerciseDate.Value) calcToday = false; // 到期日不算尾
if (valueDate < position.PosiStartDate)
{
calcToday = false;
}
// 初始化EOD持仓信息
if (preEod.id == 0)
{
preEod.FloatRate = floatRate;
preEod.TdInterestPrincipal = posiPrincipal;
preEod.PosiNotionalValue = posiPrincipal;
}
// 构建利息事件
var interest = new swap_flow_event
{
SwapTradeId = td.id,
SwapTradeNo = td.TradeNumber,
EventType = eventType,
EventReason = "交易",
EventDate = valueDate,
PositionId = position.id,
InterestDirection = position.InterestDirection,
InterestRate = rate,
InterestPrincipal = closePrincipal,
InterestSwapInterval = position.InterestSwapInterval,
InterestMode = position.InterestMode,
FloatRate = floatRate,
DataState = (int)SwapFlowDateStateEnum.完成,
ClientId = td.ClientId,
UnwindDate = valueDate
};
// 收盘场景使用 preEod.FloatRate（历史浮动利率），与 InitSwapDealInterest 收盘场景保持一致
decimal eodFloatRate = preEod.id != 0 ? preEod.FloatRate : floatRate;
decimal interestAmount = 0;
decimal tdInterestAmount = 0;
if (calcToday)
{
if (position.InterestType == (int)InterestTypeEnum.复利)
{
// 复利计算
CalcDailyCompoundInterestByEod(preEod, valueDate, td.StartDate.Value, position, closePrincipal, posiPrincipal, interest, annualDays, eodFloatRate, 1m, ref interestAmount, ref tdInterestAmount);
}
else
{
// 单利计算
CalcDailySimpleInterestByEod(preEod, valueDate, td.StartDate.Value, position, closePrincipal, posiPrincipal, interest, annualDays, eodFloatRate, 1m, ref interestAmount, ref tdInterestAmount);
}
}
// 四舍五入并赋值
interest.InterestAmount = Math.Round(interestAmount, InterestCalculationPrecision, MidpointRounding.AwayFromZero);
interest.TdInterestAmount = Math.Round(tdInterestAmount, InterestCalculationPrecision, MidpointRounding.AwayFromZero);
// 计算InterestClosePnL（方向：收取=1为正，支付=-1为负）
var interestRatio = DirectionRatio.ReceivePay(position.InterestDirection);
interest.InterestClosePnL = interest.InterestAmount * interestRatio;
if (add) UpdateDbOption(interest);
return interest;
}
///
/// 保证金腿（InterestMode 5/6）专属计息——替代 CalcEodInterest/CalcUnwindInterest 对保证金的处理。
///
/// 保证金是纯固定利率单利：浮动利率(FR007)/分段利率/复利对其均为死分支（前端无入口、
/// 确认书不含、FundingLegRate.Build 对空 FloatRateUnderlyingCode 恒返回 Fixed）。故本方法直接用
/// SimpleInterestAccrual 纯函数计息，本金取保证金余额：
/// EOD = 昨日终本金 preEod.TdInterestPrincipal（与旧 CalcDailySimpleInterestByEod 同源，无差分）
/// 盘中 = accrualBasis（preEod.TdInterestPrincipal + posiPrincipal - orginPv）
/// 盘中保留差分是必要的：posiPrincipal 是否经 ResolveInterestLegPositions 对齐到实时剩余是路径相关的
/// （生产对齐 / 诊断测试用原始腿），单一本金变量无法覆盖两种状态，差分经 orginPv 自适应。orginPv 在
/// 本方法内部按保证金维度计算（PreviousBalance），消除原 InitSwapDealInterest 的外部维度 hack
/// （融资腿 orginPv=浮动端名义本金）。保留累计语义（priorAccrued + 增量），满足下游字段契约。
///
///
/// 前提（由前端保证金表单 + SwapTradeService 构造保证）：
/// 1. InterestType=单利。本方法恒走 SimpleInterestAccrual 单利，不查 InterestType；
/// 若库内 InterestMode=5/6 且 InterestType=复利(脏数据)，会与旧 CalcEodInterest 复利分支不一致。
/// 2. rate 由 GetFixedRate 提供（SwapDealService.cs:866）——从 SwapIntervalList 取 Date ≤ unwindDate 最近段的 Rate，
/// 空表/单段时返回 InterestRateDefault。SwapIntervalList 是"互换观察日排期"（阶梯利率表 + 结息日历，非 FR007 浮动——
/// 浮动由 FloatRateUnderlyingCode + interest_rest_days 独立驱动）；保证金前端亦开放"设置观察日"分段录入。
/// 盘中用该 rate 覆盖全程，与旧 CalcDailySimpleInterest 完全一致（BuildSegmentRates 的 spread 同样是 GetFixedRate 单一值全程，
/// 不按 SwapIntervalList 切段）——SwapIntervalList 阶梯利率在盘中半路变更的精细处理是既有未覆盖口径，非本次引入；
/// EOD 路径因每日重取 GetFixedRate(valueDate) 故能正确反映阶梯。
/// 契约与副作用：
/// 3. position.InterestDirection 须已由调用方翻转（GetInterests:742 FlipDirection）；本方法不翻转。
/// 4. preEod 在 id==0 时被就地修改（设 TdInterestPrincipal/PosiNotionalValue/FloatRate），与旧 CalcEodInterest 一致。
/// 定位：SwapCalcTrace 落盘 AccrueEod/AccrualPeriod 的 notional/days/rate/accrued；盘中 accrualBasis 可从 trace 的 notional 反推。
///
/// true=收盘归档(EOD)，false=盘中平仓/互换。
/// 计息窗口为空（仅盘中生效，true 时利息归零，同 InitSwapDealInterest；典型场景=互换当日已结息）。
public swap_flow_event CalcMarginInterest(
trade td, DateTime valueDate, DateTime endDate, swap_position position, decimal rate,
decimal closePrincipal, decimal posiPrincipal, decimal closePercent,
int annualDays, bool calcFirst, bool calcLast,
eod_swap_position preEod, int eventType, bool add, bool settment, bool interestWindowEmpty)
{
// 当日是否计息（算头算尾）——同 CalcEodInterest
bool calcToday = true;
if (!calcFirst && valueDate == td.StartDate.Value) calcToday = false;
if (!calcLast && valueDate == td.ExerciseDate.Value) calcToday = false;
if (valueDate < position.PosiStartDate) calcToday = false;
// 首日初始化 preEod——同 CalcEodInterest
if (preEod.id == 0)
{
preEod.FloatRate = 0m;
preEod.TdInterestPrincipal = posiPrincipal;
preEod.PosiNotionalValue = posiPrincipal;
}
// 字段映射（保证金 FloatRate 恒 0；方向 position.InterestDirection 已由 GetInterests 翻转）
var interest = new swap_flow_event
{
SwapTradeId = td.id,
SwapTradeNo = td.TradeNumber,
EventType = eventType,
EventReason = "交易",
EventDate = valueDate,
PositionId = position.id,
InterestDirection = position.InterestDirection,
InterestRate = rate,
InterestPrincipal = closePrincipal,
InterestSwapInterval = position.InterestSwapInterval,
InterestMode = position.InterestMode,
FloatRate = 0m,
DataState = (int)SwapFlowDateStateEnum.完成,
ClientId = td.ClientId,
UnwindDate = settment ? valueDate : endDate
};
// 计息窗口为空：利息归零（同 InitSwapDealInterest；典型场景=互换事件）
if (interestWindowEmpty && !settment)
{
interest.InterestAmount = 0m;
interest.TdInterestAmount = 0m;
interest.InterestClosePnL = 0m;
if (add) UpdateDbOption(interest);
return interest;
}
decimal interestAmount = 0m;
decimal tdInterestAmount = 0m;
var legRate = FundingLegRate.Fixed(rate); // 保证金纯固定（无浮动）
if (calcToday)
{
if (settment)
{
// EOD：单日增量，累计 = 昨日累计 + 今日增量；notional = 昨日终本金（无差分）
var policy = AccrualPolicy.BuildEod(position, annualDays, isCompound: false);
var r = SimpleInterestAccrual.AccrueEod(
priorAccrued: preEod.InterestProfitSum,
priorNotional: preEod.TdInterestPrincipal,
unwindFraction: 1m,
rate: legRate, policy: policy, eodDate: valueDate);
interestAmount = r.Accrued;
tdInterestAmount = r.AccruedToday;
}
else
{
// 盘中：accrualBasis 自适应"实时剩余本金"——posiPrincipal 已对齐(ResolveInterestLegPositions)
// 时 = posiPrincipal；未对齐的原始腿经 orginPv(=PreviousBalance 昨日终) 修正回昨日终剩余。
// 单一本金变量无法覆盖两种 position 状态，故保留差分（与 EOD 直接用 preEod.TdInterestPrincipal 不同）。
// orginPv 在此内部按保证金维度计算，消除原 InitSwapDealInterest 的外部维度 hack。
var orginPv = MarginCalc.PreviousBalance(preEod, posiPrincipal);
var accrualBasis = preEod.TdInterestPrincipal + posiPrincipal - orginPv;
var segmentRates = new List<(DateTime, decimal)> { (position.PosiStartDate, rate) };
var r = SimpleInterestAccrual.AccruePeriod(
priorAccrued: preEod.InterestProfitSum * closePercent,
notional: accrualBasis,
unwindFraction: closePercent,
segmentRates: segmentRates,
startDate: position.PosiStartDate,
endDate: endDate,
priorValueDate: preEod.ValueDate,
boundary: AccrualBoundary.Of(calcFirst, calcLast),
annualDays: annualDays,
isAnnualized: position.IsAnnualized);
interestAmount = r.Accrued;
tdInterestAmount = r.AccruedToday;
interest.InterestPrincipal = accrualBasis * closePercent; // 同 CalcDailySimpleInterest:1304
}
}
interest.InterestAmount = Math.Round(interestAmount, InterestCalculationPrecision, MidpointRounding.AwayFromZero);
interest.TdInterestAmount = Math.Round(tdInterestAmount, InterestCalculationPrecision, MidpointRounding.AwayFromZero);
var interestRatio = DirectionRatio.ReceivePay(position.InterestDirection);
interest.InterestClosePnL = interest.InterestAmount * interestRatio;
if (add) UpdateDbOption(interest);
return interest;
}
///
/// 计算盘中利息（平仓/互换）
///
private swap_flow_event CalcUnwindInterest(trade td, DateTime valueDate, DateTime endDate, swap_position position, decimal rate, decimal floatRate, decimal posiPrincipal, decimal closePrincipal, decimal closePercent, int annualDays, eod_swap_position preEod, int eventType, bool add, bool interestWindowEmpty, decimal orginPv, bool calcFirst, bool calcLast, decimal consumedInterest = 0m)
{
if (preEod.id == 0)
{
preEod.FloatRate = floatRate;
preEod.TdInterestPrincipal = posiPrincipal;
preEod.PosiNotionalValue = posiPrincipal;
// priorValueDate 恒取 开始日-1：首个重置日(=开始日)的定盘覆盖 [开始日,下一重置日) 全部计息日
//（不算头时 7/7 起的计息日仍属首段），必须落在取价窗内。原实现仅算头回拨一天，
// 不算头时 fetchAfter=开始日 会跳过首重置日取价、首段误用种子利率
//（历史上靠 GetFloatRate 尾日取价回填种子掩盖；EQD-6968 自洽化后暴露并根治）。
// "不算头少计一天"由计息边界 IncludeStart=false 承担，与此处无关。
preEod.ValueDate = td.StartDate.Value.AddDays(-1);
}
return InitSwapDealInterest(td, valueDate, endDate, rate, position, add, interestWindowEmpty, posiPrincipal,
closePrincipal, closePercent, annualDays, eventType, preEod,
orginPv, calcFirst, calcLast, consumedInterest);
}
///
/// 写入保证金的资金记录：应付预付金(SwapMarginAmount)和预付金返息(SwapMarginRebatePnl)。
/// 依赖实例方法 AddClientCash/AddClientCashInCashOut，暂留此处。
///
private void RecordMarginCashFlow(trade td, UnwindData unwindData)
=> RecordMarginCashFlow(td, unwindData.ValueDate,
unwindData.SwapMarginAmount, unwindData.SwapMarginRebatePnl,
AddClientCashInCashOut);
///
/// 写入保证金资金记录的通用重载，接受资金写入委托。
/// AddClientCash(virtual,测试可stub) 和 AddClientCashInCashOut(非virtual,直接写库)
/// 都可通过此重载统一。
///
private void RecordMarginCashFlow(trade td, DateTime valueDate,
decimal marginAmount, decimal marginRebate,
Func writeCash)
{
if (marginAmount != 0)
writeCash(td, Convert.ToDouble(marginAmount), ClientCashInCashOut.系统操作_应付预付金, valueDate);
if (marginRebate != 0)
writeCash(td, Convert.ToDouble(-marginRebate), ClientCashInCashOut.系统操作_预付金返息, valueDate);
}
///
/// 初始化利息腿信息
///
/// 交易编码
/// 计息开始日期
/// 计息结束日期
/// 计息年化利率
/// 利息腿
/// 是否新增
/// 计息窗口为空（InitInterestDate 判定：true=本次不计利息，利率与金额归零；典型场景=互换当日已结息）
/// 上一日终归档
/// 当日适用名义本金
/// 当日平仓名义本金
/// 年化天数
///
private swap_flow_event InitSwapDealInterest(trade td,
DateTime valueDate,
DateTime endDate,
decimal rate,
swap_position position,
bool add,
bool interestWindowEmpty,
decimal posiNotionalValue,
decimal closePosiNotionalValue,
decimal closePrecent,
int annualDays,
int eventType,
eod_swap_position preEodPosition,
decimal orginPv,
bool calcFirst,
bool calcLast,
decimal consumedInterest = 0m
)
{
decimal interestProfitSum = preEodPosition.InterestProfitSum;
swap_flow_event interest = new swap_flow_event();
interest.SwapTradeId = td.id;
interest.SwapTradeNo = td.TradeNumber;
interest.EventType = eventType;
interest.EventReason = "交易";
interest.EventDate = valueDate;
interest.PositionId = position.id;
interest.InterestDirection = position.InterestDirection;
interest.InterestRate = rate;
interest.InterestPrincipal = closePosiNotionalValue;
interest.InterestSwapInterval = position.InterestSwapInterval;
interest.InterestMode = position.InterestMode;
interest.FloatRate = position.FloatRate;
interest.DataState = (int)SwapFlowDateStateEnum.完成;
interest.ClientId = td.ClientId;
interest.UnwindDate = endDate;
// 保证金腿已走 CalcMarginInterest（不经过本方法），orginPv 维度重映射不再需要；
// orginPv 此处仅对融资腿生效（差分公式 accrualBasis = TdInterestPrincipal + posiPrincipal - orginPv）。
if (interestWindowEmpty)
{
interest.InterestAmount = 0; // 利息金额
interest.TdInterestAmount = 0; // 当日新增利息
interest.InterestAmount = 0;
interest.InterestClosePnL = 0; // 利息端平仓盈亏
}
else
{
decimal InterestAmount = 0;
decimal TdInterestAmount = 0;
var interestRatio = DirectionRatio.ReceivePay(position.InterestDirection);
var floateRate = preEodPosition.FloatRate;
if (position.InterestType == (int)InterestTypeEnum.复利)
{
var daysFromPreEod = preEodPosition.id != 0
? (endDate - preEodPosition.ValueDate).Days
: 0;
// 不算尾 + 当日即新周期首日 + 未到重置日 ==> 说明这一天应归入下一个计息周期 当天无需单独计息
if (!calcLast && daysFromPreEod == 1
&& !IsResetDay(endDate, position.PosiStartDate, position.interest_rest_days ?? 1))
{
interest.InterestPrincipal = preEodPosition.TdInterestPrincipal * closePrecent; // 计息基数
interest.FloatRate = preEodPosition.FloatRate;
InterestAmount = preEodPosition.InterestIncomeSum * closePrecent; // 利息金额 = 待实现 * 平仓比例
TdInterestAmount = preEodPosition.InterestIncomeSum; // 当日新增利息
interest.InterestAmount = Math.Round(InterestAmount, InterestCalculationPrecision, MidpointRounding.AwayFromZero);
interest.TdInterestAmount = Math.Round(TdInterestAmount, InterestCalculationPrecision, MidpointRounding.AwayFromZero);
interest.InterestClosePnL = interest.InterestAmount * interestRatio; // 利息端平仓盈亏 = 利息金额 * 方向
return interest;
}
// remainingPercent 只用于把上一日待实现分配给本次计算对应的本金。
// 按照利息腿的实际 计息基数 重新计算一个历史待实现利息的 平仓比例。不替代全局的平仓比例
// 部分平仓计算关闭 30% 时取 30%；最终全平剩余仓位时取 100%。
var remainingPercent = preEodPosition.TdInterestPrincipal > 0m
? closePosiNotionalValue / preEodPosition.TdInterestPrincipal
: 1m;
remainingPercent = Math.Max(0m, Math.Min(1m, remainingPercent));
// resetCarryInterest 是重置日并入复利本金的历史待实现，不是当天新增利息。
// 把上日尚未实现的的利息 按本次平掉的这部分计息基数分给本次平仓 并在重置日并入计息基数
// 它只在当前 endDate 恰好为重置日时使用，避免把同一笔历史利息重复资本化。
var resetCarryInterest = preEodPosition.InterestIncomeSum * remainingPercent;
CalcDailyCompoundInterest(endDate, position, closePosiNotionalValue, interest, annualDays,
floateRate, closePrecent, calcFirst, calcLast, ref InterestAmount, ref TdInterestAmount,
consumedInterest, resetCarryInterest);
if (preEodPosition.id != 0 && closePrecent == 1m)
{
// 【全平专属分支触发标记】（快速定位）：设计意图=真全平(尾差一次带走)与观察日恒1全额结息。
// 普通部分平仓经 EOD 恒1惯例也会进入本分支（重算中间值不进结算现金流）；本行日志用于监控进入者分布。
Logger.Info($"[利息-全平专属分支] tradeId={td.id} posiId={position.id} valueDate={valueDate:yyyy-MM-dd} " +
$"closePrecent={closePrecent} preEod.InterestIncomeSum={preEodPosition.InterestIncomeSum}");
// 最终全平只重放上一日终之后的新增利息；历史部分平仓的两位结算尾差已在日终待实现中。
// InterestAmount 是本次最终应结金额；TdInterestAmount 是不按关闭比例缩放的参考累计值。
// 二者在全平时都以上一日 InterestIncomeSum 为起点，保证之前攒下的尾差最后一次带走。
var interestAtEnd = new swap_flow_event { InterestRate = rate };
decimal amountAtEnd = 0m;
decimal tdAmountAtEnd = 0m;
// InitInterestDate 在最终日不算尾时会先把 endDate 回拨一天；
// 历史差分的 amountAtEnd 需补回该日，但计算器仍使用交易 calcLast，
// 并将重放日期限制在合约到期日，避免提前全平或超期重复计息。
// 如果算尾 重放日 = 正常到期日
// 不算尾 且未超过到期日 重放日 = endDate+1 (补齐不算尾那天漏计的利息)
// 加1天超过到期日 截断到到期日
var replayEndDate = endDate;
if (!calcLast && endDate < valueDate)
{
replayEndDate = endDate.AddDays(1);
if (replayEndDate > td.ExerciseDate.Value)
{
replayEndDate = td.ExerciseDate.Value;
}
}
// 计算截至本次平仓日的累计利息 amountAtEnd
CalcDailyCompoundInterest(replayEndDate, position, closePosiNotionalValue,
interestAtEnd, annualDays, floateRate, closePrecent,
calcFirst, calcLast, ref amountAtEnd, ref tdAmountAtEnd, consumedInterest, exclusionStart: endDate);
var interestAtPreviousEod = new swap_flow_event { InterestRate = rate };
decimal amountAtPreviousEod = 0m;
decimal tdAmountAtPreviousEod = 0m;
// 最终日重放仍遵守交易的 calcLast；上一日终是历史截点而非合约尾日，
// 因此此处按闭区间包含上一日终当天，避免算头不算尾时重复加入该日利息。
// 计算截至上一日终累积的利息 amountAtPreviousEod
CalcDailyCompoundInterest(preEodPosition.ValueDate, position, closePosiNotionalValue,
interestAtPreviousEod, annualDays, floateRate, closePrecent,
calcFirst, true, ref amountAtPreviousEod, ref tdAmountAtPreviousEod, consumedInterest);
// 例如 0004：5/18 待实现 -118631.261797，加 5/19 新增约 -4648.912760，
// 得到最终应结 -123280.174557，按金额两位落为 Excel BN 的 -123280.17。
// 上一日终已保存的待实现利息 + 截至平仓日累计利息 - 截至上一日终累计利息
// 这样只带走“上一日终以后新增的利息”，同时保留历史部分平仓时因两位金额结算留下的尾差，最终全平一次性结清。
InterestAmount = preEodPosition.InterestIncomeSum + amountAtEnd - amountAtPreviousEod;
TdInterestAmount = preEodPosition.InterestIncomeSum + tdAmountAtEnd - tdAmountAtPreviousEod;
}
}
else
{
CalcDailySimpleInterest(preEodPosition, endDate, position, posiNotionalValue, interest, annualDays, floateRate, closePrecent, orginPv, calcFirst, calcLast, ref InterestAmount, ref TdInterestAmount);
}
interest.InterestAmount = Math.Round(InterestAmount, InterestCalculationPrecision, MidpointRounding.AwayFromZero);
interest.TdInterestAmount = Math.Round(TdInterestAmount, InterestCalculationPrecision, MidpointRounding.AwayFromZero);
interest.InterestClosePnL = interest.InterestAmount * interestRatio;
}
if (add)
{
UpdateDbOption(interest);
}
return interest;
}
///
/// 按 interest_rule 取 FR007 定盘价。无浮动标的时返回 fallback；取不到抛异常。
/// EOD 单日取率 + BuildSegmentRates 多日取率共用此方法，FR007 定盘逻辑收口到一处。
///
private decimal ResolveFloatRate(swap_position position, DateTime date, decimal fallback)
{
if (string.IsNullOrEmpty(position.FloatRateUnderlyingCode)) return fallback;
var fixingDate = IndexFixerBase.GetFixingDate(date, position.interest_rule);
if (IndexFixer.TryGetFixing(fixingDate, position.FloatRateUnderlyingCode, out decimal fixing))
{
if (fixing != 0m)
{
SwapCalcTrace.Critical(
$"FIX Resolve p{position.id} {date:yyyy-MM-dd}(取价日={fixingDate:yyyy-MM-dd} rule={position.interest_rule})→定盘={fixing:P6}");
return fixing;
}
SwapCalcTrace.Critical(
$"FIX Resolve p{position.id} {date:yyyy-MM-dd}(取价日={fixingDate:yyyy-MM-dd})→定盘=0视为缺价，沿用fallback={fallback:P6}");
return fallback;
}
SwapCalcTrace.Critical(
$"FIX Resolve p{position.id} {date:yyyy-MM-dd}(取价日={fixingDate:yyyy-MM-dd} rule={position.interest_rule})→缺价，抛异常");
throw new Exception($"获取不到{position.FloatRateUnderlyingCode}在{fixingDate:yyyy年MM月dd日}的价格");
}
///
/// 按重置周期切分利率段，每段记录 all-in 利率(spread+fixing)。返回 (分段列表, 末段浮动利率)。
/// fetchAfterDate: 仅该日期之后的重置日才取 FR007（单利传 ValueDate，复利传 null 全程取）。
/// exclusionStart: 排除区间起点——该日期起(含)的重置日视为"排除日"(不算尾的不计息边界日)，
/// 一概不取价；缺省=endDate。仅不算尾(calcLast=false)生效；算尾所有重置日照常强制取价。
///
private (List<(DateTime StartDate, decimal Rate)> Segments, decimal LastFloat) BuildSegmentRates(
DateTime startDate, DateTime endDate, int interestPeriod,
swap_position position, decimal spread, decimal initialFloat,
DateTime? fetchAfterDate, bool calcLast = true, DateTime? exclusionStart = null)
{
var rates = new List<(DateTime, decimal)>();
var calcDays = (endDate - startDate).Days;
decimal currentFloat = initialFloat;
SwapCalcTrace.Critical(
$"FIX Segments p{position.id} [{startDate:yyyy-MM-dd}→{endDate:yyyy-MM-dd}] period={interestPeriod} " +
$"fetchAfter={(fetchAfterDate?.ToString("yyyy-MM-dd") ?? "全程")} calcLast={calcLast} " +
$"排除起点={(exclusionStart?.ToString("yyyy-MM-dd") ?? (calcLast ? "无" : endDate.ToString("yyyy-MM-dd")))} seed={initialFloat:P6} spread={spread:P6}");
for (int i = 0; i <= calcDays; i += interestPeriod)
{
var resetDate = startDate.AddDays(i);
bool needFetch = (fetchAfterDate == null || resetDate > fetchAfterDate.Value);
// 算头不算尾(calcLast=false)时，endDate 当天不计息，其重置日利率不参与计息——
// 排除日(EQD-6968 自洽化)一概不取价(有价也不取)，currentFloat 保持末段已消费利率：
// 事件/快照回写的浮动利率与金额同源、与平仓时刻无关。剩余持仓的新周期利率由
// SwapEodPositionService 的"重置日再定盘"显式获取，不靠排除日顺带。算尾照常强制取价。
bool isExcludedEnd = !calcLast && resetDate >= (exclusionStart ?? endDate);
if (needFetch && !isExcludedEnd)
{
currentFloat = ResolveFloatRate(position, resetDate, currentFloat);
}
else if (needFetch && isExcludedEnd)
{
SwapCalcTrace.Critical(
$"FIX Segment p{position.id} {resetDate:yyyy-MM-dd} 排除日(不计息)→不取价，沿用末段={currentFloat:P6}");
}
rates.Add((resetDate, spread + currentFloat));
}
return (rates, currentFloat);
}
///
/// 计算复利 盘中
///
/// 上一互换日
/// 结算日期
/// 浮动标的
/// 计息基数
/// 固定利率
/// 是否年化
/// 年化天数
///
public void CalcDailyCompoundInterest(DateTime endDate, swap_position position, decimal principal, swap_flow_event flowEvent,
int annualDays, decimal floateRate, decimal closePercent, bool calcFirst, bool calcLast,
ref decimal InterestAmount, ref decimal TdInterestAmount, decimal consumedInterest = 0m, decimal resetCarryInterest = 0m, DateTime? exclusionStart = null)
{
var startDate = position.PosiStartDate;
int interestPeriod = position.interest_rest_days ?? 1;
// 分段取率：复利全程重放，每个重置日(含 startDate)取 FR007（fetchAfterDate=null）。
// calcLast 透传，与下方 AccruePeriod 的边界同源，避免两处漂移；
// exclusionStart 仅重放补计不算尾漏计利息时非 null(=真实平仓日)，锚定尾日跳过取价起点。
var (segmentRates, currentFloat) = BuildSegmentRates(
startDate, endDate, interestPeriod, position, flowEvent.InterestRate, floateRate,
fetchAfterDate: null, calcLast: calcLast, exclusionStart: exclusionStart);
// 纯函数复利计息：分段重置日并本金 + resetCarryInterest + 扣 consumedInterest
var interestTrace = new AccrualTrace();
var result = CompoundInterestAccrual.AccruePeriod(
notional: principal,
segmentRates: segmentRates,
startDate: startDate,
endDate: endDate,
boundary: AccrualBoundary.Of(calcFirst, calcLast),
annualDays: annualDays,
isAnnualized: position.IsAnnualized,
resetCarryInterest: resetCarryInterest,
realizedInterest: consumedInterest,
unwindFraction: closePercent,
finalBasis: out var finalBasis,
trace: interestTrace);
SwapCalcTrace.Write(interestTrace);
// flowEvent 副作用：FloatRate=末段浮动利率；InterestPrincipal=复利终期本金(最后一次并本金后的基数)。
flowEvent.FloatRate = currentFloat;
flowEvent.InterestPrincipal = finalBasis;
InterestAmount = result.Accrued;
TdInterestAmount = result.AccruedToday;
}
///
/// 计算单利 盘中（按重置天数分段，每段使用对应浮动利率）
///
public void CalcDailySimpleInterest(eod_swap_position preEodPosition, DateTime endDate, swap_position position, decimal posiPrincipal, swap_flow_event flowEvent, int annualDays, decimal floateRate, decimal closePercent, decimal orginPv, bool calcFirst, bool calcLast, ref decimal InterestAmount, ref decimal TdInterestAmount, decimal consumedInterest = 0m, DateTime? exclusionStart = null)
{
var startDate = position.PosiStartDate;
int interestPeriod = position.interest_rest_days ?? 1;
// orginPv 是路径相关参考本金（资金腿=上一日终浮动端名义本金）。保证金腿已走 CalcMarginInterest，不经此方法。
// 单利差分：accrualBasis 全程恒定 = 昨日终滚动基数 + 当日名义本金 - 参考本金。
var accrualBasis = preEodPosition.TdInterestPrincipal + posiPrincipal - orginPv;
// 分段取率：仅 ValueDate 之后的重置日才取 FR007（fetchAfterDate=ValueDate）。
// calcLast 透传，与下方 AccruePeriod 的边界同源，避免两处漂移。
var (segmentRates, currentFloat) = BuildSegmentRates(
startDate, endDate, interestPeriod, position, flowEvent.InterestRate, floateRate,
fetchAfterDate: preEodPosition.ValueDate, calcLast: calcLast, exclusionStart: exclusionStart);
// 纯函数计息：Accrued=缩放累计(InterestAmount)，AccruedToday=未缩放累计(TdInterestAmount)
var interestTrace = new AccrualTrace();
var result = SimpleInterestAccrual.AccruePeriod(
priorAccrued: preEodPosition.InterestProfitSum * closePercent,
notional: accrualBasis,
unwindFraction: closePercent,
segmentRates: segmentRates,
startDate: startDate,
endDate: endDate,
priorValueDate: preEodPosition.ValueDate,
boundary: AccrualBoundary.Of(calcFirst, calcLast),
annualDays: annualDays,
isAnnualized: position.IsAnnualized,
trace: interestTrace);
SwapCalcTrace.Write(interestTrace);
// flowEvent 副作用（下游 EOD 用 InterestPrincipal 播种次日 TdInterestPrincipal）
flowEvent.InterestPrincipal = accrualBasis * closePercent;
flowEvent.FloatRate = currentFloat;
InterestAmount = result.Accrued;
TdInterestAmount = result.AccruedToday;
}
///
/// 计算复利 收盘
///
/// 上一互换日
/// 结算日期
/// 开仓日
/// 浮动标的
/// 计息基数
/// 固定利率
/// 是否年化
/// 年化天数
///
public void CalcDailyCompoundInterestByEod(eod_swap_position preEodPosition, DateTime endDate, DateTime tradeDate, swap_position position, decimal principal, decimal posiPrincipal, swap_flow_event flowEvent, int annualDays, decimal floateRate, decimal closePercent, ref decimal InterestAmount, ref decimal TdInterestAmount)
{
int interestPeriod = position.interest_rest_days ?? 1;
var isResetDay = (endDate - tradeDate).Days % interestPeriod == 0;
// 重置日按 interest_rule 重新定盘浮动利率（GLMS-JIATT-20260805 根因——
// 重置日=平仓日必须用新利率，否则沿用旧周期利率并污染后续 EOD）。非重置日沿用 floateRate。
var effectiveFloat = isResetDay ? ResolveFloatRate(position, endDate, floateRate) : floateRate;
flowEvent.FloatRate = effectiveFloat;
// remainingFraction：重置日把上一日终待实现利息按本次平仓基数分摊（EOD 全量为 1）。
var remainingFraction = posiPrincipal > 0m
? Math.Max(0m, Math.Min(1m, principal / posiPrincipal))
: 1m;
// 纯数学下沉至 CompoundInterestAccrual.AccrueEod（DDD 命名 + 末位生产精度 12 舍入）。
var legRate = FundingLegRate.Build(position, flowEvent.InterestRate, effectiveFloat);
var accrualPolicy = AccrualPolicy.BuildEod(position, annualDays, isCompound: true);
// 完整计息 trace：前后日期/基数/利率/重置标志全过程，经 SwapCalcTrace 常驻落盘（关键路径日志）。
var interestTrace = new AccrualTrace();
var result = CompoundInterestAccrual.AccrueEod(
priorAccrued: preEodPosition.InterestProfitSum,
priorNotional: preEodPosition.TdInterestPrincipal,
notional: posiPrincipal,
unwindFraction: closePercent,
rate: legRate,
policy: accrualPolicy,
isResetDay: isResetDay,
remainingFraction: remainingFraction,
eodDate: endDate,
trace: interestTrace);
SwapCalcTrace.Write(interestTrace);
// flowEvent.InterestPrincipal：当日计息基数(已按平仓比例缩放)——下游 EOD 用它播种次日 TdInterestPrincipal。
// 复用 CompoundEodBasis 单一真相源（与 CompoundInterestAccrual.AccrueEod 内部同一公式，见其 EodBasis 调用）。
flowEvent.InterestPrincipal = CompoundInterestAccrual.EodBasis(
isResetDay, posiPrincipal, preEodPosition.InterestProfitSum, remainingFraction,
preEodPosition.TdInterestPrincipal) * closePercent;
InterestAmount = result.Accrued;
TdInterestAmount = result.AccruedToday;
}
///
/// 计算单利 收盘（按重置天数分段，每段使用对应浮动利率）
///
public void CalcDailySimpleInterestByEod(eod_swap_position preEodPosition, DateTime endDate, DateTime tradeDate, swap_position position, decimal principal, decimal posiPrincipal, swap_flow_event flowEvent, int annualDays, decimal floateRate, decimal closePercent, ref decimal InterestAmount, ref decimal TdInterestAmount)
{
// 首次操作（preEod.id == 0）：计息基数按存量本金初始化——保留旧行为（含对 preEod 的就地修正）。
if (preEodPosition.id == 0)
{
preEodPosition.TdInterestPrincipal = posiPrincipal;
}
// 取率：重置日按 interest_rule 重新定盘浮动利率（GLMS-JIATT-20260805 根因——
// 重置日=平仓日必须用新利率，否则沿用旧周期利率并污染后续 EOD）。
int interestPeriod = position.interest_rest_days ?? 1;
var isResetDay = (endDate - tradeDate).Days % interestPeriod == 0;
var effectiveFloat = isResetDay ? ResolveFloatRate(position, endDate, floateRate) : floateRate;
flowEvent.FloatRate = effectiveFloat;
// 纯数学下沉至 SimpleInterestAccrual（末位生产精度 12 舍入）。
var legRate = FundingLegRate.Build(position, flowEvent.InterestRate, effectiveFloat);
var accrualPolicy = AccrualPolicy.BuildEod(position, annualDays, isCompound: false);
// 完整计息 trace：收集器由适配器创建，随后经 SwapCalcTrace 常驻落盘（关键路径日志，无条件）。
var interestTrace = new AccrualTrace();
var result = SimpleInterestAccrual.AccrueEod(
priorAccrued: preEodPosition.InterestProfitSum,
priorNotional: preEodPosition.TdInterestPrincipal,
unwindFraction: closePercent,
rate: legRate,
policy: accrualPolicy,
eodDate: endDate,
trace: interestTrace);
InterestAmount = result.Accrued;
TdInterestAmount = result.AccruedToday;
SwapCalcTrace.Write(interestTrace);
}
///
/// 单标的平仓
///
///
///
public void SwapUnwind(UnwindData unwindData)
{
var td = FindTrade(unwindData.SwapTradeId);
if (td == null)
{
throw new ServiceException("未找到交易信息");
}
UnwindNormalizer.NormalizeEventUnwindDate(unwindData);
UnwindNormalizer.NormalizeNotionalValues(unwindData);
NormalizeManualSettlementAmounts(unwindData, (int)SwapEventTypeEnum.平仓, "系统操作_平仓");
//CheckLastEod(unwindData.ValueDate, td.StartDate.Value, unwindData.SwapTradeId); //去掉平仓收盘限制
// 前端按"占期初(original)"语义传 ClosePercent(A)；后端全链路按"占剩余(remaining)"语义(B)消费。
// 入口统一转换为 B，落库展示用的 A 由 SaveSwapDealInternal 还原。
unwindData.ClosePercent = ToRemainingClosePercent(unwindData.ClosePercent, unwindData.NotionalValue, unwindData.PosiNotionalValue);
if (UnwindNormalizer.NormalizeFullCloseRequest(unwindData))
{
UnwindNormalizer.RecalculateNormalizedUnwindAmounts(unwindData);
}
ValidateFrontendPnL(unwindData, isIncome: false); // 只读校验告警，不阻断交易
bool cofirm = false;
ExecuteInTransaction(() =>
{
int clientCashId = AddClientCash(td, Convert.ToDouble(-unwindData.SwapRealizedPnL), ClientCashInCashOut.系统操作_平仓费, unwindData.ValueDate);
RecordMarginCashFlow(td, unwindData.ValueDate, unwindData.SwapMarginAmount, 0m, AddClientCash);
DealFloatPosition(unwindData);
var flowList = new List(unwindData.FlowEvents);
var eventId = SaveSwapDeal(unwindData, (int)SwapEventTypeEnum.平仓, clientCashId, "系统操作_平仓");
var remainingStockEqvNotional = Math.Round(td.StockEqvNotional - Convert.ToDouble(unwindData.CloseNotionalValue), ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
var remainingTradeAmount = td.TradeAmount - Convert.ToDouble(unwindData.CloseQty);
var isFullClose = UnwindNormalizer.IsFullCloseAfterDeduction(unwindData, remainingStockEqvNotional, remainingTradeAmount);
if (isFullClose)
{
td.TradeStatus = "已平仓";
td.StockEqvNotional = 0;
td.TradeAmount = 0;
CallSaveSwapTradeClientCash(td, unwindData.ValueDate);
}
else
{
td.HasPartialUnWind = 1;
td.StockEqvNotional = remainingStockEqvNotional;
td.TradeAmount = remainingTradeAmount;
}
td.Notional = td.TradeAmount;
td.UnWindDate = unwindData.UnwindDate;
SaveAllChanges();
cofirm = true;
});
if (cofirm)
{
TriggerRealtimeSwapPosition();
}
}
///
/// 自动全平仓
///
///
///
///
public void AuotoSwapUnwind(int tradeid, decimal unwindPrice, decimal unwindPriceFee, decimal unwindNetFee, decimal unwindNet, DateTime valueDate, decimal unwindQty, decimal closeFee)
{
unwindPriceFee = decimal.Parse(unwindPriceFee.ToString("F10"));
var td = DbContext.trade.Find(tradeid);
var positions = DbContext.swap_position.ActiveByTrade(td.id);
List eventTypes = new List() { (int)SwapEventTypeEnum.平仓, (int)SwapEventTypeEnum.互换 };
var dealDate = valueDate;
var tradeExtend = DbContext.trade_extend.FirstOrDefault(x => x.TradeId == td.id);
td.trade_extend = tradeExtend;
var position = positions.Where(x => !string.IsNullOrEmpty(x.UnderlyingCode) && !x.IsInitial).FirstOrDefault();
var storagePriceRound = ConsGlobal.InstrumentType.IsBond(position?.UnderlyingInstrumentType)
? ConsGlobal.PriceRound
: ConsGlobal.SwapDeliveryPriceRound;
unwindPrice = Math.Round(unwindPrice, storagePriceRound, MidpointRounding.AwayFromZero);
var preDealDate = GetPreDealDate(td.id, dealDate, eventTypes);
swap_flow_event floatEvent = new swap_flow_event();
UnwindData unwindData = new UnwindData();
unwindData.CloseType = 2;
unwindData.StartDate = td.TradeDate.Value;
if (preDealDate.HasValue)
{
unwindData.StartDate = preDealDate.Value;
}
unwindData.ValueDate = dealDate;
unwindData.UnwindDate = QdpCalendarHelper.GetNonHoliday(dealDate.AddDays(1));
floatEvent.EventDate = dealDate;
floatEvent.UnwindDate = unwindData.UnwindDate;
floatEvent.PayDate = QdpCalendarHelper.GetNonHoliday(unwindData.UnwindDate.Value.AddDays(td.trade_extend.ExtendObj.SettlementRules));
unwindData.PayDate = floatEvent.PayDate;
floatEvent.SwapTradeId = td.id;
floatEvent.SwapTradeNo = td.TradeNumber;
unwindData.SwapTradeId = td.id;
unwindData.StructureType = td.StructureType;
unwindData.NotionalValue = Convert.ToDecimal(td.OriginalStockEqvNotional ?? 0);
unwindData.NotionalQty = positions.Where(x => x.IsInitial).Sum(s => s.PosiQuantity);
unwindData.PosiNotionalValue = position != null ? position.PosiNotionalValue : Convert.ToDecimal(td.StockEqvNotional);
unwindData.PositionQty = Convert.ToDecimal(td.TradeAmount);
var unwindPercent = unwindData.PositionQty == 0 ? 0 : unwindQty / unwindData.PositionQty;
unwindData.AnnualDays = tradeExtend == null ? 365 : tradeExtend.ExtendObj.AnnualDays;
unwindData.CloseMethod = unwindQty == unwindData.PositionQty ? (int)CloseMethodEnum.全部平仓 : (int)CloseMethodEnum.部分平仓;
unwindData.ClosePercent = unwindData.PositionQty == 0 ? 0 : unwindPercent;
unwindData.CloseNotionalValue = position == null ? 0 : unwindQty * position.PosiGrossPrice * position.ContractSize;
unwindData.CloseNotionalValue = unwindPercent >= 1 ? unwindData.PosiNotionalValue : Math.Round(unwindData.CloseNotionalValue, ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
unwindData.CloseQty = unwindQty;
if (position != null)
{
decimal floatRatio = position.PosiDirection == 1 ? 1m : -1m;
decimal longRatio = position.PositionType == 1 ? 1m : -1m;
floatEvent.PositionId = position.PositionId;
floatEvent.EventType = (int)SwapFlowEventTypeEnum.平仓;
floatEvent.EventReason = "交易";
floatEvent.DividendIn = 0;
floatEvent.UnderlyingCode = position.UnderlyingCode;
floatEvent.UnderlyingInstrumentType = position.UnderlyingInstrumentType;
floatEvent.CloseFee = 0;
floatEvent.BeforeCloseFee = position.PosiTradingFee + position.PosiTradingFeePending;
floatEvent.PayDirection = position.PosiDirection;
floatEvent.PosiGrossPrice = position.PosiGrossPrice;
floatEvent.PosiNetPrice = position.PosiNetPrice;
floatEvent.PositionType = position.PositionType;
floatEvent.Quantity = unwindData.CloseQty;
floatEvent.PositionQty = unwindData.PositionQty - unwindData.CloseQty;
floatEvent.ContractSize = position.ContractSize;
floatEvent.DataState = (int)SwapFlowDateStateEnum.完成;
floatEvent.InterestMode = position.InterestMode;
floatEvent.TradingAmountAvg = unwindPrice;
floatEvent.TradingAmountFeeAvg = unwindPriceFee;
floatEvent.TradingAmountNetFeeAvg = unwindNetFee;
floatEvent.TradingAmountNetAvg = unwindNet;
floatEvent.TradingFeePending = position.PosiTradingFeePending * unwindData.ClosePercent;
floatEvent.TradingFeePending = Math.Round(floatEvent.TradingFeePending, ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
floatEvent.TradingFee = closeFee;
floatEvent.MarkClosePnl = (unwindPrice - position.PosiGrossPrice) * unwindQty * floatRatio * longRatio;
//MarkClosePnl 纯盯市不要计算交易费用和分红
floatEvent.MarkClosePnl = Math.Round(floatEvent.MarkClosePnl, ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
floatEvent.TradingAmount = unwindPrice * floatEvent.Quantity * floatEvent.ContractSize;
floatEvent.TradingAmount = Math.Round(floatEvent.TradingAmount, ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
floatEvent.OptLog = "流水自动";
floatEvent.ClientId = td.ClientId;
floatEvent.SetOpt(UserInfo);
EnrichDividendIn(floatEvent, unwindQty, td);
}
unwindData.FlowEvents.Add(floatEvent);
var interestPositions = GetUnwindInterests(unwindData.ValueDate, unwindData.UnwindDate.Value, td.id, unwindPercent, (int)SwapEventTypeEnum.平仓);
interestPositions.ForEach(item =>
{
item.OptLog = "流水自动";
});
foreach (var item in interestPositions)
{
item.TdInterestAmount = Math.Round(item.TdInterestAmount, ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
item.InterestAmount = Math.Round(item.InterestAmount, ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
item.InterestClosePnL = Math.Round(item.InterestClosePnL, ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
}
unwindData.FlowEvents.AddRange(interestPositions);
CalcCloseAmount(unwindData);
DealUnwind(unwindData, td);
}
private void EnrichDividendIn(swap_flow_event flowEvent, decimal unwindQty, trade td)
{
if (flowEvent.UnwindDate == null)
{
throw new ArgumentNullException("平仓日期缺失");
}
var date = flowEvent.EventDate;
BondPaymentService servie = new BondPaymentService(UserInfo);
var payments = servie.GetBondPayments(flowEvent.UnderlyingCode, td.StartDate.Value, date);
int shortRatio = DirectionRatio.LongShort(flowEvent.PositionType);
int directionRatio = DirectionRatio.ReceivePay(flowEvent.PayDirection);
// + 付息日>上日日终且小于等于平仓日期的分红数据
var dividendIn = servie.CalcPayment(payments, unwindQty, shortRatio, directionRatio);
var um = DataCacheProvider.GetUnderlyingDataSource().GetData(flowEvent.UnderlyingCode);
decimal tax = um.ValueAddedTax ?? 0;
dividendIn = DividendCalc.AfterTaxRaw(dividendIn, tax);
flowEvent.DividendIn = Math.Round(dividendIn, 2, MidpointRounding.AwayFromZero);
}
public decimal GetUnderlyingTax(string code)
{
var data = DataCacheProvider.GetUnderlyingDataSource().GetData(code);
if (data == null)
{
return 0;
}
return data.ValueAddedTax ?? 0;
}
private void DealUnwind(UnwindData unwindData, trade td, string actionMsg = "系统操作_自动平仓")
{
int clientCashId = AddClientCashInCashOut(td, Convert.ToDouble(-unwindData.SwapRealizedPnL), ClientCashInCashOut.系统操作_平仓费, unwindData.ValueDate);
RecordMarginCashFlow(td, unwindData.ValueDate, unwindData.SwapMarginAmount, 0m, AddClientCashInCashOut);
var flowList = new List(unwindData.FlowEvents);
var eventId = SaveSwapDeal(unwindData, (int)SwapEventTypeEnum.平仓, clientCashId, actionMsg);
if (unwindData.CloseMethod == (int)CloseMethodEnum.全部平仓)
{
td.TradeStatus = "已平仓";
td.trade_extend = DbContext.trade_extend.FirstOrDefault(x => x.TradeId == td.id);
if (td.trade_extend != null && !td.trade_extend.ExtendObj.NeedOpenFee)
{
new ClientCashInCashOutService(this).SaveSwapTradeClientCash(td, td.TradePrice ?? 0, unwindData.ValueDate, 0);
}
}
else
{
td.HasPartialUnWind = 1;
}
td.UnWindDate = unwindData.UnwindDate;
td.StockEqvNotional = Math.Round(td.StockEqvNotional - Convert.ToDouble(unwindData.CloseNotionalValue), ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
td.TradeAmount -= Convert.ToDouble(unwindData.CloseQty);
td.Notional = td.TradeAmount;
td.OptDate = DateTime.Now;
td.OptId = UserId;
td.OptName = UserName;
DbContext.SaveChanges();
}
///
/// 计算平仓总额
///
///
private void CalcCloseAmount(UnwindData unwindData)
{
var floatPosition = unwindData.FlowEvents.FirstOrDefault(x => !string.IsNullOrEmpty(x.UnderlyingCode));
var interestList = unwindData.FlowEvents.Where(x => string.IsNullOrEmpty(x.UnderlyingCode));
decimal floatRatio = floatPosition.PayDirection == 1 ? 1m : -1m;
var pnl = floatPosition.FloatPnlSum;
unwindData.SwapCloseAmount = pnl;
unwindData.SwapRealizedPnL = pnl;
unwindData.SwapMarginRebatePnl = 0;
unwindData.SwapMarginAmount = 0;
if (interestList != null)
{
MarginCalc.AccumulateSettlement(interestList.ToList(), unwindData);
interestList.ForEach(x =>
{
unwindData.SwapRealizedPnL += x.InterestClosePnL;
unwindData.SwapCloseAmount += x.InterestClosePnL;
});
}
unwindData.SwapCloseAmount = Math.Round(unwindData.SwapCloseAmount, 2, MidpointRounding.AwayFromZero);
unwindData.SwapRealizedPnL = Math.Round(unwindData.SwapRealizedPnL, 2, MidpointRounding.AwayFromZero);
}
///
/// 互换
///
///
///
public void SwapIncome(UnwindData unwindData)
{
var td = FindTrade(unwindData.SwapTradeId);
if (td == null)
{
throw new ServiceException("未找到交易信息");
}
UnwindNormalizer.NormalizeEventUnwindDate(unwindData);
ValidateIncomeValueDate(unwindData, td);
NormalizeManualSettlementAmounts(unwindData, (int)SwapEventTypeEnum.互换, "系统操作_互换");
//CheckLastEod(unwindData.ValueDate, td.StartDate.Value, unwindData.SwapTradeId); //去掉平仓收盘限制
ValidateFrontendPnL(unwindData, isIncome: true); // 只读校验告警，不阻断交易
ExecuteInTransaction(() =>
{
int clientCashId = AddClientCash(td, Convert.ToDouble(-unwindData.SwapRealizedPnL), ClientCashInCashOut.系统操作_互换, unwindData.ValueDate);
RecordMarginCashFlow(td, unwindData.ValueDate, 0m, unwindData.SwapMarginRebatePnl, AddClientCash);
foreach (var item in unwindData.FlowEvents)
{
item.OptLog = "手工操作";
}
SaveSwapDeal(unwindData, (int)SwapEventTypeEnum.互换, clientCashId, "系统操作_互换");
if (td.ExerciseDate <= unwindData.ValueDate)
{
td.Notional = 0;
td.StockEqvNotional = 0;
td.TradeStatus = "已到期";
}
td.UnWindDate = unwindData.UnwindDate;
SaveAllChanges();
});
}
///
/// 互换/平仓审核通过
///
///
///
///
public void ApproveSwapTrade(trade td, int eventType)
{
var swapEvent = FindSwapEvent(td.id, eventType);
if (swapEvent == null)
{
throw new Exception("该笔交易状态为平仓待复核，未找到相关记录，请检查该笔交易是否有效");
}
swapEvent.unwindData = JsonConvert.DeserializeObject(swapEvent.EventData);
UnwindNormalizer.NormalizeEventUnwindDate(swapEvent.unwindData);
UnwindNormalizer.NormalizeNotionalValues(swapEvent.unwindData);
// Stored events keep display ratio A; approval calculations consume remaining ratio B.
swapEvent.unwindData.ClosePercent = ToRemainingClosePercent(
swapEvent.unwindData.ClosePercent,
swapEvent.unwindData.NotionalValue,
swapEvent.unwindData.PosiNotionalValue);
var flowList = FindFlowEventsByEventId(swapEvent.id);
foreach (var item in flowList)
{
item.EventDate = swapEvent.unwindData.ValueDate;
item.UnwindDate = swapEvent.unwindData.UnwindDate;
}
swapEvent.unwindData.FlowEvents = flowList;
if (eventType == (int)SwapEventTypeEnum.平仓)
{
if (UnwindNormalizer.NormalizeFullCloseRequest(swapEvent.unwindData))
{
UnwindNormalizer.RecalculateNormalizedUnwindAmounts(swapEvent.unwindData);
}
}
if (eventType == (int)SwapEventTypeEnum.互换)
{
ValidateIncomeValueDate(swapEvent.unwindData, td);
}
if (eventType == (int)SwapEventTypeEnum.平仓)
{
foreach (var item in flowList.Where(x => x.PositionType > 0))
{
item.Quantity = swapEvent.unwindData.CloseQty;
item.PositionQty = swapEvent.unwindData.ClosePercent == 1
? 0
: swapEvent.unwindData.PositionQty - swapEvent.unwindData.CloseQty;
}
}
string action = eventType == (int)SwapEventTypeEnum.互换 ? ClientCashInCashOut.系统操作_互换 : ClientCashInCashOut.系统操作_平仓费;
int clientCashId = AddClientCash(td, Convert.ToDouble(-swapEvent.unwindData.SwapRealizedPnL), action, swapEvent.unwindData.ValueDate);
if (eventType == (int)SwapEventTypeEnum.平仓)
{
RecordMarginCashFlow(td, swapEvent.unwindData.ValueDate, swapEvent.unwindData.SwapMarginAmount, 0m, AddClientCash);
}
swapEvent.ClientCashId = clientCashId;
td.UnWindDate = swapEvent.unwindData.UnwindDate;
if (eventType != (int)SwapEventTypeEnum.互换)
{
var remainingStockEqvNotional = Math.Round(td.StockEqvNotional - Convert.ToDouble(swapEvent.unwindData.CloseNotionalValue), ConsGlobal.MoneyRound, MidpointRounding.AwayFromZero);
var remainingTradeAmount = td.TradeAmount - Convert.ToDouble(swapEvent.unwindData.CloseQty);
var isFullClose = UnwindNormalizer.IsFullCloseAfterDeduction(swapEvent.unwindData, remainingStockEqvNotional, remainingTradeAmount);
if (isFullClose)
{
td.TradeStatus = "已平仓";
td.StockEqvNotional = 0;
td.TradeAmount = 0;
CallSaveSwapTradeClientCash(td, swapEvent.unwindData.ValueDate);
}
else
{
td.TradeStatus = ConsTrade.确认成交;
td.HasPartialUnWind = 1;
td.StockEqvNotional = remainingStockEqvNotional;
td.TradeAmount = remainingTradeAmount;
}
}
else if (swapEvent.unwindData.CloseMethod == (int)CloseMethodEnum.全部平仓)
{
td.TradeStatus = "已平仓";
CallSaveSwapTradeClientCash(td, swapEvent.unwindData.ValueDate);
}
else
{
td.TradeStatus = ConsTrade.确认成交;
td.HasPartialUnWind = 1;
}
td.Notional = td.TradeAmount;
UpdateInitalPosition(flowList, swapEvent.unwindData, eventType);
SaveAllChanges();
}
///
/// 互换/平仓提交审核
///
///
///
///
public void ApplySwapTrade(UnwindData unwindData, int eventType)
{
var td = FindTrade(unwindData.SwapTradeId);
if (td == null)
{
throw new ServiceException("未找到交易信息");
}
UnwindNormalizer.NormalizeEventUnwindDate(unwindData);
if (eventType == (int)SwapEventTypeEnum.互换)
{
ValidateIncomeValueDate(unwindData, td);
}
unwindData.SwapRealizedPnL = unwindData.SwapCloseAmount;
NormalizeManualSettlementAmounts(unwindData, eventType, eventType == (int)SwapEventTypeEnum.互换 ? "系统操作_互换" : "系统操作_平仓");
// 前端按"占期初(original)"语义传 ClosePercent(A)；后端全链路按"占剩余(remaining)"语义(B)消费。
// 入口统一转换为 B，落库展示用的 A 由 SaveSwapDealInternal 还原。
// 与 SwapUnwind(L1270) 保持一致——缺少此转换会导致 SaveSwapDealInternal 的 B→A 还原出错
// （例如第二次部分平仓 50%(A) → 错误还原为 0.325 而非 0.50）。
unwindData.ClosePercent = ToRemainingClosePercent(unwindData.ClosePercent, unwindData.NotionalValue, unwindData.PosiNotionalValue);
if (eventType == (int)SwapEventTypeEnum.平仓)
{
if (UnwindNormalizer.NormalizeFullCloseRequest(unwindData))
{
UnwindNormalizer.RecalculateNormalizedUnwindAmounts(unwindData);
}
}
string action = eventType == (int)SwapEventTypeEnum.互换 ? ClientCashInCashOut.系统操作_互换 : ClientCashInCashOut.系统操作_平仓费;
ExecuteInTransaction(() =>
{
CloseReCheckSetTrade(unwindData.SwapTradeId, eventType == (int)SwapEventTypeEnum.互换, true);
SaveSwapDeal(unwindData, eventType, 0, action, true);
SaveAllChanges();
// 需求①：若触发条件判定无需审批（CloseReCheck_SetTrade 已将 ProcessOrderId 设为审批通过），
// 在 swap_event 记录创建完成后再执行审批通过流程。
td = FindTrade(unwindData.SwapTradeId);
if (td.ProcessOrderId == ProcessTradeLog.审批通过)
{
new TradeOpenService(this).UpdateTradeProcessLog(new TradeOpenReqModel
{
tradeId = td.id,
status = "pass",
comments = "触发条件未满足，自动跳过审批",
notNeedOperationHistory = false
});
}
});
}
private void ValidateIncomeValueDate(UnwindData unwindData, trade td)
{
var maxIncomeValueDate = GetMaxIncomeValueDate(td).Date;
if (unwindData.ValueDate.Date > maxIncomeValueDate)
{
throw new ServiceException($"手动互换结算日期不能晚于当前交易结束日期T-1：{maxIncomeValueDate:yyyy-MM-dd}");
}
}
///
/// 保存平仓/互换事件
///
///
///
private long SaveSwapDealInternal(UnwindData unwindData, int eventType, int clientCashId, string eventResason = "", bool approve = false)
{
var td = DbContext.trade.Find(unwindData.SwapTradeId);
if (td == null)
{
throw new ServiceException("未找到交易信息");
}
var flowList = new List(unwindData.FlowEvents);
UnwindNormalizer.NormalizeSettledInterestAmounts(flowList, eventType, eventResason);
unwindData.FlowEvents.Clear();
// 落库展示用"占期初(original)"语义(A)；计算链（费用递减/全平判定）用"占剩余(remaining)"语义(B)。
// 序列化前把 ClosePercent 还原为 A，序列化后立即还原回 B 供后续使用。
var storedClosePercent = ToOriginalClosePercent(unwindData.ClosePercent, unwindData.NotionalValue, unwindData.PosiNotionalValue);
var incomingClosePercent = unwindData.ClosePercent;
unwindData.ClosePercent = storedClosePercent;
string data = JsonConvert.SerializeObject(unwindData);
unwindData.ClosePercent = incomingClosePercent;
var swapEvent = new SwapEventService(this).AddSwapEventDate(unwindData.ValueDate, unwindData.SwapTradeId, eventType, data, clientCashId, true, eventResason);//将平仓、互换总额存入事件
foreach (var item in flowList)
{
if (item.PositionType > 0 && eventType == (int)SwapEventTypeEnum.平仓)
{
item.Quantity = unwindData.CloseQty;
item.PositionQty = unwindData.ClosePercent == 1 ? 0 : unwindData.PositionQty - unwindData.CloseQty;
}
item.PayDate = unwindData.PayDate;
item.UnwindDate = unwindData.UnwindDate;
item.EventDate = unwindData.ValueDate;
FillSwapFlowEvent(item, unwindData, td, eventType, swapEvent.id);
DbContext.swap_flow_event.Add(item);
}
if (!approve)
{
UpdateInitalPosition(flowList, unwindData, eventType);
}
DbContext.SaveChanges();
var savedFlowEvents = DbContext.swap_flow_event.Where(x => x.EventId == swapEvent.id).ToList();
foreach (var item in savedFlowEvents)
{
FillSwapFlowEvent(item, unwindData, td, eventType, swapEvent.id);
}
DbContext.SaveChanges();
return swapEvent.id;
}
private void FillSwapFlowEvent(swap_flow_event item, UnwindData unwindData, trade td, int eventType, long eventId)
{
item.EventId = eventId;
item.SwapTradeId = unwindData.SwapTradeId;
item.SwapTradeNo = td.TradeNumber;
item.EventType = eventType;
item.EventReason = string.IsNullOrWhiteSpace(item.EventReason) ? "交易" : item.EventReason;
UpdateDbOption(item);
}
///
/// 计算平仓数据
///
///
private void DealFloatPosition(UnwindData unwindData)
{
foreach (var item in unwindData.FlowEvents)
{
item.OptLog = "手工操作";
if (item.PositionType > 0 && item.EventType == (int)SwapEventTypeEnum.平仓)
{
decimal shortRatio = item.PositionType == (int)PositionTypeFlag.Long ? -1m : 1m;
item.TradingAmountFeeAvg = item.TradingAmountAvg + item.TradingFeePending / unwindData.CloseQty * shortRatio;
item.TradingAmountNetFeeAvg = item.TradingAmountNetAvg + item.TradingFeePending / unwindData.CloseQty * shortRatio;
item.TradingAmount = item.TradingAmountAvg * unwindData.CloseQty;
}
}
}
///
/// 单标的互换更新实时持仓信息
///
///
private void UpdateInitalPosition(List flowList, UnwindData unwindData, int eventType)
{
var positions = DbContext.swap_position.Where(x => !x.IsInitial && x.SwapTradeId == unwindData.SwapTradeId && !x.Invalid);
foreach (var position in positions)
{
if (!string.IsNullOrEmpty(position.UnderlyingCode))
{
// 收益结算（互换）不改变持仓数量和名义本金，只更新费用
if (eventType == (int)SwapEventTypeEnum.互换)
{
position.PosiTradingFee -= position.PosiTradingFee * unwindData.ClosePercent;
position.PosiTradingFeePending -= position.PosiTradingFeePending * unwindData.ClosePercent;
}
else
{
// 平仓时才扣减持仓
var remainingPositionQty = position.PosiQuantity - unwindData.CloseQty;
var remainingPositionNotional = Math.Round(
position.PosiNotionalValue - unwindData.CloseNotionalValue,
ConsGlobal.MoneyRound,
MidpointRounding.AwayFromZero);
position.PosiQuantity = unwindData.ClosePercent == 1
? 0
: remainingPositionQty;
position.PosiNotionalValue = unwindData.ClosePercent == 1
? 0
: remainingPositionNotional;
position.PosiTradingFee -= position.PosiTradingFee * unwindData.ClosePercent;
position.PosiTradingFeePending -= position.PosiTradingFeePending * unwindData.ClosePercent;
}
}
else
{
var interest = flowList.FirstOrDefault(x => x.PositionId == position.PositionId);
if (interest != null)
{
position.InterestAmount += interest.InterestAmount;
position.InterestFeePending += interest.InterestFee;
if (MarginModes.Contains(interest.InterestMode) && eventType == (int)SwapEventTypeEnum.平仓)
{
var remainingInterestPrincipal = Math.Round(
position.InterestPrincipalFix - interest.InterestPrincipal,
ConsGlobal.MoneyRound,
MidpointRounding.AwayFromZero);
position.InterestPrincipalFix = unwindData.ClosePercent == 1
? 0
: remainingInterestPrincipal;
}
}
}
}
}
}
}