fix:修复创建现金池问题

@@ -57,6 +57,7 @@ func (cashPoolService *CashPoolService) CreateCashPool(createCashPoolCommand *co
 		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, "无效的公司id")
 	}
 
+	// 获取平台素币兑换情况
 	var employeeDao *dao.EmployeeDao
 	if value, err := factory.CreateEmployeeDao(map[string]interface{}{
 		"transactionContext": transactionContext,
@@ -74,28 +75,10 @@ func (cashPoolService *CashPoolService) CreateCashPool(createCashPoolCommand *co
 		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, "无效的公司")
 	}
 
-	systemExchangedSuMoney := systemSuMoneyStatistics["systemExchangedSuMoney"].(float64)
-	systemUnExchangeSuMoney := systemSuMoneyStatistics["systemUnExchangeSuMoney"].(float64)
-
-	systemCashStatistics, err := employeeDao.CalculateSystemCash(createCashPoolCommand.CompanyId)
-	if err != nil {
-		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
-	}
-	if systemCashStatistics == nil {
-		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, "无效的公司")
-	}
-
-	systemExchangedCash := systemCashStatistics["systemExchangedCash"].(float64)
-	systemUnExchangeCash := systemCashStatistics["systemUnExchangeCash"].(float64)
-
-	// 计算系统平均兑换汇率
-	var rate float64
-	if systemExchangedSuMoney == 0 {
-		rate = 0
-	} else {
-		rate, _ = strconv.ParseFloat(fmt.Sprintf("%.2f", systemExchangedCash / systemExchangedSuMoney), 64)   // 平均兑换汇率
-	}
+	systemExchangedSuMoney := systemSuMoneyStatistics["systemExchangedSuMoney"].(float64)   // 平台已兑换素币
+	systemUnExchangeSuMoney := systemSuMoneyStatistics["systemUnExchangeSuMoney"].(float64)   // 平台未兑换素币
 
+	// 判断当前是否有现金池
 	var cashPoolRepository domain.CashPoolRepository
 	if value, err  := factory.CreateCashPoolRepository(map[string] interface{} {
 		"transactionContext": transactionContext,
@@ -105,18 +88,49 @@ func (cashPoolService *CashPoolService) CreateCashPool(createCashPoolCommand *co
 		cashPoolRepository = value
 	}
 
+	countCashPools, _, err := cashPoolRepository.Find(tool_funs.SimpleStructToMap(createCashPoolCommand));
+	if err != nil {
+		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
+	}
+
 	// 新建现金池
 	newCashPool := &domain.CashPool{
 		CompanyId: createCashPoolCommand.CompanyId,
 		Cash: createCashPoolCommand.Cash,
-		ExchangedCash: systemExchangedCash,
-		UnExchangeCash: createCashPoolCommand.Cash + systemUnExchangeCash,
+		ExchangedCash: 0,
+		UnExchangeCash: 0,
 		ExchangedSuMoney: systemExchangedSuMoney,
 		UnExchangeSuMoney: systemUnExchangeSuMoney,
-		Rate: rate,
+		Rate: 0,
 		CreateTime: time.Now(),
 	}
 
+	if countCashPools == 0 {    // 现金池为空时处理
+		newCashPool.ExchangedCash = 0.0
+		newCashPool.UnExchangeCash = createCashPoolCommand.Cash
+	} else {
+		systemCashStatistics, err := employeeDao.CalculateSystemCash(createCashPoolCommand.CompanyId)
+		if err != nil {
+			return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
+		}
+		if systemCashStatistics == nil {
+			return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, "无效的公司")
+		}
+
+		newCashPool.ExchangedCash = systemCashStatistics["systemExchangedCash"].(float64)
+		newCashPool.UnExchangeCash = systemCashStatistics["systemUnExchangeCash"].(float64) + createCashPoolCommand.Cash
+
+		// 计算系统平均兑换汇率
+		var rate float64
+		if systemExchangedSuMoney == 0 {
+			rate = 0
+		} else {
+			rate, _ = strconv.ParseFloat(fmt.Sprintf("%.2f", newCashPool.ExchangedCash / systemExchangedSuMoney), 64)   // 平均兑换汇率
+		}
+
+		newCashPool.Rate = rate
+	}
+
 	if cashPool, err := cashPoolRepository.Save(newCashPool); err != nil {
 		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
 	} else {