exchange_go/services/binanceservice/futuresrest.go

package binanceservice

import (
	"context"
	"errors"
	"fmt"
	"go-admin/app/admin/models"
	DbModels "go-admin/app/admin/models"
	"go-admin/app/admin/service/dto"
	"go-admin/common/const/rediskey"
	"go-admin/common/global"
	"go-admin/common/helper"
	models2 "go-admin/models"
	"go-admin/pkg/utility"
	"go-admin/pkg/utility/snowflakehelper"
	"strconv"
	"strings"
	"time"

	"github.com/bytedance/sonic"
	"github.com/go-admin-team/go-admin-core/logger"
	"github.com/jinzhu/copier"
	"github.com/shopspring/decimal"
	"gorm.io/gorm"
)

/*
修改订单信息
*/
func ChangeFutureOrder(mapData map[string]interface{}) {
	// 检查订单号是否存在
	orderSn, ok := mapData["c"]
	originOrderSn := mapData["C"] //取消操作 代表原始订单号

	if !ok {
		logger.Error("合约订单回调失败,没有订单号")
		return
	}

	if originOrderSn != nil && originOrderSn != "" {
		orderSn = originOrderSn
	}

	// 获取数据库连接
	db := GetDBConnection()
	if db == nil {
		logger.Error("合约订单回调失败,无法获取数据库连接")
		return
	}

	// 获取 Redis 锁
	lock := helper.NewRedisLock(fmt.Sprintf(rediskey.FutCallBack, orderSn), 10, 5, 500*time.Millisecond)
	acquired, err := lock.AcquireWait(context.Background())
	if err != nil {
		logger.Error("合约订单回调失败,获取锁失败:", orderSn, " err:", err)
		return
	}
	if !acquired {
		logger.Error("合约订单回调失败,获取锁失败:", orderSn)
		return
	}
	defer lock.Release()

	// 查询订单
	preOrder, err := getPreOrder(db, orderSn)
	if err != nil {
		logger.Error("合约订单回调失败,查询订单失败:", orderSn, " err:", err)
		return
	}

	// 解析订单状态
	status, ok := mapData["X"].(string)
	if !ok {
		mapStr, _ := sonic.Marshal(&mapData)
		logger.Error("订单回调失败,没有状态:", string(mapStr))
		return
	}
	// 更新订单状态
	orderStatus, reason := parseOrderStatus(status, mapData)

	if orderStatus == 0 {
		logger.Error("订单回调失败,状态错误:", orderSn, " status:", status, " reason:", reason)
		return
	}

	if err := updateOrderStatus(db, preOrder, orderStatus, reason, true, mapData); err != nil {
		logger.Error("修改订单状态失败:", orderSn, " err:", err)
		return
	}

	handleFutOrderByType(db, preOrder, orderStatus)
}

// 合约回调
func handleFutOrderByType(db *gorm.DB, preOrder *DbModels.LinePreOrder, orderStatus int) {
	switch {
	//主单成交
	case preOrder.OrderType == 0 && orderStatus == 6:
		handleFutMainOrderFilled(db, preOrder)
	//止盈成交
	case preOrder.OrderType == 1 && orderStatus == 6:
		handleTakeProfit(db, preOrder)
	//减仓回调
	case preOrder.OrderType == 4 && orderStatus == 6:
		handleReduceFilled(db, preOrder)
	//止损成交
	case preOrder.OrderType == 2 && orderStatus == 6:
		handleStopLoss(db, preOrder)
	//平仓成交
	case preOrder.OrderType == 3 && orderStatus == 6:
		handleClosePosition(db, preOrder)
	}
}

// 减仓回调
func handleReduceFilled(db *gorm.DB, preOrder *DbModels.LinePreOrder) {
	apiUserInfo, _ := GetApiInfo(preOrder.ApiId)

	if apiUserInfo.Id == 0 {
		logger.Errorf("handleMainReduceFilled 获取api信息失败,订单号:%s", preOrder.OrderSn)
		return
	}

	tradeSet, err := GetTradeSet(preOrder.Symbol, 1)

	if err != nil {
		logger.Errorf("handleMainReduceFilled 获取交易对设置失败,订单号:%s", preOrder.OrderSn)
		return
	}

	price := utility.StrToDecimal(preOrder.Price)
	parentOrder, err := GetOrderById(db, preOrder.Pid)

	if err != nil {
		logger.Errorf("handleMainReduceFilled 获取主单失败,订单号:%s", preOrder.OrderSn)
		return
	}
	parentPrice := utility.StrToDecimal(parentOrder.Price)
	num := utility.StrToDecimal(preOrder.Num)
	lossAmount := price.Sub(parentPrice).Abs().Mul(num)

	if !strings.HasSuffix(preOrder.Symbol, "USDT") {
		tradeSetU, err := GetTradeSet(utility.ReplaceSuffix(preOrder.Symbol, preOrder.QuoteSymbol, ""), 1)

		if err != nil {
			logger.Errorf("handleMainReduceFilled 获取币本位对应U交易对设置失败,订单号:%s", preOrder.OrderSn)
			return
		}

		lossAmount = lossAmount.Mul(utility.StrToDecimal(tradeSetU.LastPrice)).Truncate(2)
	}

	if err := db.Model(&parentOrder).Where("loss_amount=0", preOrder.Pid).Update("loss_amount", lossAmount).Error; err != nil {
		logger.Errorf("handleMainReduceFilled 更新亏损金额失败,订单号:%s", preOrder.OrderSn)
		return
	}

	orders := make([]models.LinePreOrder, 0)
	rate := utility.StringAsFloat(preOrder.Rate)
	ext := models.LinePreOrderExt{}
	//获取订单配置
	db.Model(&ext).Where("order_id =?", preOrder.Pid).First(&ext)

	// 不是100%减仓 就需要挂止盈止损
	if rate < 100 {
		totalNum, err := getFuturesPositionNum(apiUserInfo, preOrder, tradeSet)

		if err != nil {
			return
		}

		takeProfitOrder := models.LinePreOrder{}
		copier.Copy(&takeProfitOrder, &preOrder)
		takeProfitOrder.Id = 0
		takeProfitOrder.OrderSn = utility.Int64ToString(snowflakehelper.GetOrderId())
		takeProfitOrder.Status = 0
		takeProfitOrder.Price = price.Mul(decimal.NewFromInt(1).Add(ext.TakeProfitRatio)).Truncate(int32(tradeSet.PriceDigit)).String()
		takeProfitOrder.OrderType = 1
		takeProfitOrder.Rate = "100"
		takeProfitOrder.SignPrice = preOrder.Price
		takeProfitOrder.CreatedAt = time.Now()
		takeProfitOrder.BuyPrice = "0"
		takeProfitOrder.MainOrderType = "LIMIT"
		takeProfitOrder.Num = totalNum.String()
		orders = append(orders, takeProfitOrder)

		//有止损单
		if ext.ReduceStopLossRatio.Cmp(decimal.Zero) > 0 {
			var stoploss models.LinePreOrder

			copier.Copy(&stoploss, &preOrder)
			stoploss.Id = 0
			stoploss.OrderSn = utility.Int64ToString(snowflakehelper.GetOrderId())
			stoploss.Status = 0
			stoploss.CreatedAt = time.Now()
			stoploss.OrderType = 2
			stoploss.SignPrice = preOrder.Price
			stoploss.BuyPrice = "0"
			stoploss.Rate = "100"
			stoploss.MainOrderType = "LIMIT"
			stoploss.Num = totalNum.String()

			orders = append(orders, stoploss)
		}

		if err := db.Create(&orders).Error; err != nil {
			logger.Errorf("handleMainReduceFilled 创建止盈止损单失败:%v", err)
			return
		}

		futApi := FutRestApi{}
		for _, v := range orders {
			if v.OrderType == 1 {
				processFutTakeProfitOrder(db, futApi, v, totalNum)
			} else if v.OrderType == 2 {
				processFutStopLossOrder(db, v, utility.StrToDecimal(v.Price), totalNum)
			}
		}
	}

	//加仓待触发
	addPositionOrder := DbModels.LinePreOrder{}

	if err := db.Model(&addPositionOrder).Where("main_id =? AND order_category=3 AND status=0", preOrder.MainId).First(addPositionOrder).Error; err != nil {
		logger.Errorf("handleMainReduceFilled 获取加仓单失败,订单号:%s err:%v", preOrder.OrderSn, err)
		return
	}

	keyFutAddpositionKey := fmt.Sprintf(rediskey.FuturesAddPositionList, global.EXCHANGE_BINANCE)

	addPositionData := AddPositionList{
		MainId:     addPositionOrder.MainId,
		Pid:        addPositionOrder.Pid,
		Price:      utility.StrToDecimal(addPositionOrder.Price),
		ApiId:      addPositionOrder.ApiId,
		Symbol:     addPositionOrder.Symbol,
		Side:       addPositionOrder.Site,
		SymbolType: addPositionOrder.SymbolType,
	}

	addVal, err := sonic.MarshalString(addPositionData)

	if err != nil {
		logger.Errorf("handleMainReduceFilled 序列化加仓单失败,订单号:%s err:%v", preOrder.OrderSn, err)
		return
	}

	if err := helper.DefaultRedis.RPushList(keyFutAddpositionKey, addVal); err != nil {
		logger.Errorf("handleMainReduceFilled 添加加仓单失败,订单号:%s err:%v", preOrder.OrderSn, err)
	}
}

// 获取币安合约持仓
func getFuturesPositionNum(apiUserInfo DbModels.LineApiUser, preOrder *DbModels.LinePreOrder, tradeSet models2.TradeSet) (decimal.Decimal, error) {
	futApi := FutRestApi{}
	positions, err := futApi.GetPositionV3(&apiUserInfo, preOrder.Symbol)
	var num decimal.Decimal

	if err != nil {
		logger.Errorf("handleMainReduceFilled 获取持仓信息失败,交易对:%s ,订单号:%s", preOrder.Symbol, preOrder.OrderSn)
		return num, err
	}

	for _, item := range positions {
		if item.Symbol == preOrder.Symbol {
			positionAmt := utility.StrToDecimal(item.PositionAmt)

			//多
			if positionAmt.Cmp(decimal.Zero) > 0 && preOrder.Site == "SELL" {
				num = positionAmt.Abs().Truncate(int32(tradeSet.AmountDigit))
				break
			} else if positionAmt.Cmp(decimal.Zero) < 0 && preOrder.Site == "BUY" {
				//空
				num = positionAmt.Abs().Truncate(int32(tradeSet.AmountDigit))
				break
			}
		}
	}

	if num.Cmp(decimal.Zero) <= 0 {
		logger.Errorf("handleMainReduceFilled 获取持仓数量为0,交易对:%s ,订单号:%s", preOrder.Symbol, preOrder.OrderSn)
		return num, errors.New("获取持仓数量为0")
	}
	return num, nil
}

// 平仓单成交
func handleClosePosition(db *gorm.DB, preOrder *DbModels.LinePreOrder) {
	removeFutLossAndAddPosition(preOrder)
	ids := []int{preOrder.Pid, preOrder.MainId}
	//主单止盈成交
	if err := db.Model(&DbModels.LinePreOrder{}).Where("id IN ?", ids).Update("status", 9).Error; err != nil {
		logger.Errorf("平仓单成功 修改主单状态失败 订单号：%s:", err)
	}
}

// 止损单成交
func handleStopLoss(db *gorm.DB, preOrder *DbModels.LinePreOrder) {
	removeFutLossAndAddPosition(preOrder)
	ids := []int{preOrder.Pid, preOrder.MainId}
	//主单止损成交
	if err := db.Model(&DbModels.LinePreOrder{}).Where("id IN ?", ids).Update("status", 9).Error; err != nil {
		logger.Errorf("止损单成功 修改主单状态失败 订单号：%s:", err)
	}
}

// 止盈单成交
func handleTakeProfit(db *gorm.DB, preOrder *DbModels.LinePreOrder) {
	removeFutLossAndAddPosition(preOrder)

	ids := []int{preOrder.Pid, preOrder.MainId}
	//主单止盈成交
	if err := db.Model(&DbModels.LinePreOrder{}).Where("id IN ?", ids).Update("status", 9).Error; err != nil {
		logger.Errorf("主单止盈成功修改主单状态失败 订单号：%s:", err)
	}
}

// 清除合约缓存
func removeFutLossAndAddPosition(preOrder *DbModels.LinePreOrder) {
	stoplossKey := fmt.Sprintf(rediskey.FuturesStopLossList, global.EXCHANGE_BINANCE)
	stoplossVal, _ := helper.DefaultRedis.GetAllList(stoplossKey)
	addPositionKey := fmt.Sprintf(rediskey.FuturesAddPositionList, global.EXCHANGE_BINANCE)
	addPositionVal, _ := helper.DefaultRedis.GetAllList(addPositionKey)
	reduceKey := fmt.Sprintf(rediskey.FuturesReduceList, global.EXCHANGE_BINANCE)
	reduceVal, _ := helper.DefaultRedis.GetAllList(reduceKey)
	stoploss := dto.StopLossRedisList{}
	addPosition := AddPositionList{}
	reduce := ReduceListItem{}

	//止损缓存
	for _, v := range stoplossVal {
		sonic.Unmarshal([]byte(v), &stoploss)
		if stoploss.MainId == preOrder.MainId {
			_, err := helper.DefaultRedis.LRem(stoplossKey, v)

			if err != nil {
				logger.Errorf("订单回调失败, 回调订单号：%s 删除止损缓存失败:%v", preOrder.OrderSn, err)
			}
		}
	}

	//加仓缓存
	for _, v := range addPositionVal {
		sonic.Unmarshal([]byte(v), &addPosition)
		if addPosition.MainId == preOrder.MainId {
			_, err := helper.DefaultRedis.LRem(addPositionKey, v)

			if err != nil {
				logger.Errorf("订单回调失败, 回调订单号：%s 删除加仓缓存失败:%v", preOrder.OrderSn, err)
			}
		}
	}

	//减仓缓存
	for _, v := range reduceVal {
		sonic.Unmarshal([]byte(v), &reduce)
		if reduce.MainId == preOrder.MainId {
			_, err := helper.DefaultRedis.LRem(reduceKey, v)

			if err != nil {
				logger.Errorf("订单回调失败, 回调订单号：%s 删除减仓缓存失败:%v", preOrder.OrderSn, err)
			}
		}
	}
}

// 主单成交 处理止盈止损订单
// preOrder 主单
func handleFutMainOrderFilled(db *gorm.DB, preOrder *models.LinePreOrder) {
	orders := []models.LinePreOrder{}
	tradeSet, _ := GetTradeSet(preOrder.Symbol, 0)

	if tradeSet.Coin == "" {
		logger.Error("获取交易对失败")
		return
	}

	if tradeSet.Coin == "" {
		logger.Errorf("获取交易对配置失败, 回调订单号：%s", preOrder.OrderSn)
		return
	}

	//预生成加仓单
	shouldReturn := createFutPreAddPosition(preOrder, db, tradeSet)
	if shouldReturn {
		return
	}

	if err := db.Model(&DbModels.LinePreOrder{}).
		Where("pid = ? AND order_type > 0 AND status = '0' ", preOrder.Id).
		Find(&orders).Error; err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
		logger.Error("订单回调查询止盈止损单失败:", err)
		return
	} else if len(orders) == 0 && preOrder.OrderCategory == 3 {
		orders, err = makeFuturesTakeAndReduce(preOrder, db, tradeSet, orders)
		if err != nil {
			return
		}
	}

	futApi := FutRestApi{}
	num, _ := decimal.NewFromString(preOrder.Num)

	for i, order := range orders {
		if i >= 2 { // 最多处理 2 个订单
			break
		}
		price := utility.StrToDecimal(order.Price).Truncate(int32(tradeSet.PriceDigit))
		num = num.Truncate(int32(tradeSet.AmountDigit))
		order.Price = price.String()

		if err := db.Model(&order).Update("num", num).Error; err != nil {
			logger.Errorf("修改止盈止损数量失败 订单号:%s err:%v", order.OrderSn, err)
		}

		switch order.OrderType {
		case 1: // 止盈
			processFutTakeProfitOrder(db, futApi, order, num)
		case 2: // 止损
			processFutStopLossOrder(db, order, price, num)
		case 4: //减仓
			processFutReduceOrder(order, price, num)
		}
	}
}

// 生成加仓单
func createFutPreAddPosition(preOrder *DbModels.LinePreOrder, db *gorm.DB, tradeSet models2.TradeSet) bool {
	//主单类型
	if preOrder.OrderCategory == 1 {
		orderExts, err := GetOrderExts(db, preOrder.Id)

		if err != nil {
			logger.Errorf("预生成加仓单失败, 回调订单号：%s 获取主单拓展配置失败:%v", preOrder.OrderSn, err)
			return true
		}

		price := utility.StrToDecimal(preOrder.Price)
		for _, v := range orderExts {
			if v.OrderId == 0 {
				var data DbModels.LinePreOrder

				copier.Copy(&data, &v)

				data.Id = 0
				data.Pid = preOrder.Id
				data.OrderSn = utility.Int64ToString(snowflakehelper.GetOrderId())
				data.MainId = preOrder.Id
				data.CreatedAt = time.Now()
				data.MainOrderType = v.AddPositionOrderType
				data.Status = 0
				data.OrderCategory = 3
				var percentage decimal.Decimal

				if data.Site == "BUY" {
					percentage = decimal.NewFromInt(1).Add(v.AddPositionPriceRatio.Div(decimal.NewFromInt(100)))
				} else {
					percentage = decimal.NewFromInt(1).Sub(v.AddPositionPriceRatio.Div(decimal.NewFromInt(100)))
				}
				data.Price = price.Mul(percentage).Truncate(int32(tradeSet.PriceDigit)).String()

				err := db.Transaction(func(tx *gorm.DB) error {
					if err2 := tx.Create(&data).Error; err2 != nil {
						return err2
					}

					v.OrderId = data.Id
					if err2 := tx.Model(&v).Update("order_id", data.Id).Error; err2 != nil {
						return err2
					}

					return nil
				})

				if err != nil {
					logger.Errorf("预生成加仓单失败, 回调订单号：%s 预生成加仓单失败:%v", preOrder.OrderSn, err)
					return true
				}
			}
		}
	}

	return false
}

// 构建合约止盈、减仓单
func makeFuturesTakeAndReduce(preOrder *DbModels.LinePreOrder, db *gorm.DB, tradeSet models2.TradeSet, orders []DbModels.LinePreOrder) ([]DbModels.LinePreOrder, error) {
	ext := models.LinePreOrderExt{}
	apiInfo, err := GetApiInfo(preOrder.ApiId)
	price := utility.StrToDecimal(preOrder.Price)

	if apiInfo.Id == 0 {
		logger.Error("订单回调查询apiuserinfo失败 err:", err)
		return nil, errors.New("订单回调查询apiuserinfo失败")
	}

	if err := db.Model(&ext).Where("order_id = ?", preOrder.Id).First(&ext).Error; err != nil {
		logger.Error("订单回调查询止盈止损单扩展表失败:", err)
		return nil, errors.New("订单回调查询止盈止损单扩展表失败")
	}

	totalLossAmountU, _ := GetTotalLossAmount(db, preOrder.MainId)
	num, err := getFuturesPositionNum(apiInfo, preOrder, tradeSet)

	if err != nil {
		logger.Error("订单回调查询持仓数量失败:", err)
		return nil, errors.New("订单回调查询持仓数量失败")
	}

	//止盈单
	if ext.TakeProfitRatio.Cmp(decimal.Zero) > 0 {
		profitOrder := models.LinePreOrder{}
		copier.Copy(&profitOrder, preOrder)
		var rate decimal.Decimal

		profitOrder.OrderSn = strconv.FormatInt(snowflakehelper.GetOrderId(), 10)
		profitOrder.Pid = preOrder.Id
		profitOrder.OrderType = 1
		profitOrder.Status = 0
		profitOrder.MainId = ext.MainOrderId
		profitOrder.Num = num.String()

		//止盈需要累加之前的亏损
		if totalLossAmountU.Cmp(decimal.Zero) > 0 {
			rate = totalLossAmountU.Div(num).Div(price).Sub(decimal.NewFromInt(1)).Abs().Add(ext.TakeProfitRatio).Truncate(2)
		} else {
			rate = ext.TakeProfitRatio
		}

		profitOrder.Rate = rate.String()

		orders = append(orders, profitOrder)
	}

	//减仓单
	if ext.ReducePriceRatio.Cmp(decimal.Zero) > 0 {
		stopOrder := models.LinePreOrder{}
		copier.Copy(&stopOrder, preOrder)

		stopOrder.OrderSn = strconv.FormatInt(snowflakehelper.GetOrderId(), 10)
		stopOrder.Pid = preOrder.Id
		stopOrder.MainId = ext.MainOrderId
		stopOrder.OrderType = 4
		stopOrder.Status = 0
		stopOrder.Rate = ext.ReducePriceRatio.String()
		stopOrder.Num = num.String()

		if ext.ReduceNumRatio.Cmp(decimal.Zero) > 0 {
			stopOrder.Num = num.Mul(ext.ReduceNumRatio.Div(decimal.NewFromInt(100))).Truncate(int32(tradeSet.AmountDigit)).String()
		} else {
			stopOrder.Num = num.String()
		}

		orders = append(orders, stopOrder)
	}

	for index := range orders {
		orderRate := utility.StrToDecimal(orders[index].Rate)
		if strings.ToUpper(preOrder.Site) == "BUY" {
			orders[index].Site = "SELL"
			orders[index].Price = utility.StrToDecimal(preOrder.Price).Mul(decimal.NewFromInt(1).Sub(orderRate.Div(decimal.NewFromInt(100)))).Truncate(int32(tradeSet.PriceDigit)).String()
		} else {
			orders[index].Site = "BUY"
			orders[index].Price = utility.StrToDecimal(preOrder.Price).Mul(decimal.NewFromInt(1).Add(orderRate.Div(decimal.NewFromInt(100)))).Truncate(int32(tradeSet.PriceDigit)).String()
		}
	}

	if len(orders) > 0 {
		if err := db.Create(&orders).Error; err != nil {
			logger.Error("主单回调，创建止盈、减仓单失败")
			return orders, errors.New("主单回调，创建止盈、减仓单失败")
		}
	}
	return orders, nil
}

// 减仓单
func processFutReduceOrder(order DbModels.LinePreOrder, price, num decimal.Decimal) {
	key := fmt.Sprintf(rediskey.FuturesReduceList, global.EXCHANGE_BINANCE)
	item := ReduceListItem{
		Id:      order.Id,
		ApiId:   order.ApiId,
		Pid:     order.Pid,
		MainId:  order.MainId,
		Price:   price,
		Num:     num,
		Side:    order.Site,
		Symbol:  order.Symbol,
		OrderSn: order.OrderSn,
	}

	itemVal, err := sonic.MarshalString(&item)

	if err != nil {
		logger.Errorf("序列化失败 err:%v", err)
		return
	}

	if err := helper.DefaultRedis.RPushList(key, itemVal); err != nil {
		logger.Errorf("减仓单写入缓存失败 err:%v", err)
		return
	}
}

// 处理止盈订单
func processFutTakeProfitOrder(db *gorm.DB, futApi FutRestApi, order models.LinePreOrder, num decimal.Decimal) {
	price, _ := decimal.NewFromString(order.Price)

	params := FutOrderPlace{
		ApiId:            order.ApiId,
		Symbol:           order.Symbol,
		Side:             order.Site,
		Price:            price,
		Quantity:         num,
		OrderType:        "TAKE_PROFIT",
		StopPrice:        price,
		NewClientOrderId: order.OrderSn,
	}

	err := futApi.OrderPlace(db, params)

	if err != nil {
		for x := 0; x < 5; x++ {
			if strings.Contains(err.Error(), "LOT_SIZE") {
				break
			}

			err = futApi.OrderPlace(db, params)

			if err == nil {
				break
			}

			time.Sleep(time.Millisecond * 250)
		}
	}

	if err != nil {
		logger.Error("合约止盈下单失败:", order.OrderSn, " err:", err)
		if err := db.Model(&DbModels.LinePreOrder{}).Where("id = ?", order.Id).
			Updates(map[string]interface{}{"status": "2", "desc": err.Error(), "num": params.Quantity}).Error; err != nil {
			logger.Error("合约止盈下单失败,更新状态失败:", order.OrderSn, " err:", err)
		}
	} else {
		if err := db.Model(&DbModels.LinePreOrder{}).Where("id = ? and status =0", order.Id).
			Updates(map[string]interface{}{"status": "1", "num": num.String()}).Error; err != nil {
			logger.Error("合约止盈下单成功,更新状态失败:", order.OrderSn, " err:", err)
		}
	}
}

// 处理止损订单
// order 止损单
func processFutStopLossOrder(db *gorm.DB, order models.LinePreOrder, price, num decimal.Decimal) error {
	params := FutOrderPlace{
		ApiId:            order.ApiId,
		Symbol:           order.Symbol,
		Side:             order.Site,
		Price:            price,
		Quantity:         num,
		OrderType:        "STOP",
		StopPrice:        price,
		NewClientOrderId: order.OrderSn,
	}
	futApi := FutRestApi{}
	var err error

	for x := 1; x < 4; x++ {
		err = futApi.OrderPlace(db, params)

		if err == nil {
			break
		}

		time.Sleep(time.Millisecond * 200)
	}

	if err != nil {
		if err2 := db.Model(&order).Updates(map[string]interface{}{"status": 2, "desc": err.Error()}).Error; err2 != nil {
			logger.Error("合约止损下单失败,更新状态失败:", order.OrderSn, " err:", err2)
		}
	} else {
		if err := db.Model(&order).Where("status =0").
			Updates(map[string]interface{}{"status": "1"}).Error; err != nil {
			logger.Error("合约止损下单成功,更新状态失败:", order.OrderSn, " err:", err)
		}
	}

	return nil
}