eta_api/services/data/excel/mixed_table.go

package excel

import (
	"encoding/json"
	"errors"
	"eta/eta_api/models/data_manage"
	"eta/eta_api/models/data_manage/excel/request"
	"eta/eta_api/services/data"
	"eta/eta_api/utils"
	"fmt"
	"github.com/shopspring/decimal"
	"github.com/yidane/formula"
	"sort"
	"strconv"
	"strings"
	"time"
)

// BaseCalculate
// @Description: 指标数据计算请求
type BaseCalculate struct {
	DataList      []*data_manage.EdbDataList
	Frequency     string `description:"需要转换的频度"`
	Formula       interface{}
	Calendar      string `description:"公历/农历"`
	MoveType      int    `description:"移动方式:1:领先(默认),2:滞后"`
	MoveFrequency string `description:"移动频度"`
	FromFrequency string `description:"来源的频度"`
	Source        int    `description:"1：累计值转月；2：累计值转季；3：同比值；4：同差值；5：N数值移动平均数计算；6：环比值；7：环差值；8：升频；9：降频；10：时间移位；11：超季节性；12：年化；13：累计值；14：累计值年初至今；15：指数修匀；16：日均值"`
}

// Cell
// @Description: 单元格位置
type Cell struct {
	Column   int                           `description:"行"`
	Row      int                           `description:"列"`
	CellInfo request.MixedTableCellDataReq `description:"对应的单元格信息"`
}

// GetMixedTableCellData 获取混合表格数据
func GetMixedTableCellData(mixedTableReq request.MixedTableReq) (newMixedTableCellDataList [][]request.MixedTableCellDataReq, err error, errMsg string) {
	cellRelationConf := mixedTableReq.CellRelation
	config := mixedTableReq.Data

	// 单元格关系配置x信息
	cellRelationConfMap := make(map[string]request.CellRelationConf)
	cellRelationConfList := make([]request.CellRelationConf, 0)
	if cellRelationConf != `` {
		err = json.Unmarshal([]byte(cellRelationConf), &cellRelationConfList)
		if err != nil {
			return
		}

		for _, v := range cellRelationConfList {
			cellRelationConfMap[v.Key] = v
		}
	}

	// 找出所有的关联指标id
	config, edbInfoIdList, _, err, errMsg := handleConfig(config)
	if err != nil {
		return
	}

	// 查询所有关联的指标信息
	edbInfoList, err := data_manage.GetEdbInfoByIdList(edbInfoIdList)
	if err != nil {
		return
	}

	// 指标信息map
	edbInfoMap := make(map[int]*data_manage.EdbInfo)
	// 日度指标数据map
	edbDayDataListMap := make(map[int]map[string]float64)
	// 月度指标数据map
	edbMonthDataListMap := make(map[int]map[string]float64)
	// 日度指标数据map
	edbDataListMap := make(map[int][]*data_manage.EdbDataList)
	for _, edbInfo := range edbInfoList {
		edbInfoMap[edbInfo.EdbInfoId] = edbInfo

		dataList := make([]*data_manage.EdbDataList, 0)
		switch edbInfo.EdbInfoType {
		case 0:
			dataList, _ = data_manage.GetEdbDataList(edbInfo.Source, edbInfo.EdbInfoId, ``, ``)
		case 1:
			_, dataList, _, _, _, _ = data.GetPredictDataListByPredictEdbInfoId(edbInfo.EdbInfoId, ``, ``, false)
		default:
			err = errors.New(fmt.Sprint("获取失败,指标类型异常", edbInfo.EdbInfoType))
		}

		dateValMap := make(map[string]float64)
		monthValMap := make(map[string]float64)
		for _, tmpData := range dataList {
			// 日度数据
			dateValMap[tmpData.DataTime] = tmpData.Value
			// 月度数据（取该月份的第一个数据）
			yearMonth := strings.Join(strings.Split(tmpData.DataTime, "-")[0:2], "-")
			if _, ok := monthValMap[yearMonth]; !ok {
				monthValMap[yearMonth] = tmpData.Value
			}
		}
		edbDayDataListMap[edbInfo.EdbInfoId] = dateValMap
		edbMonthDataListMap[edbInfo.EdbInfoId] = monthValMap
		edbDataListMap[edbInfo.EdbInfoId] = dataList
	}

	// 单元格实际绑定的信息map
	cellDataRelationMap := make(map[string]request.MixedTableCellDataReq, 0)

	// 处理指定指标的日期
	for k, row := range config {
		for i, cell := range row {
			// 单元格是日期类型，且是日导入指标日期（指标库的最新日期）
			if cell.DataType == request.DateDT && cell.DataTimeType == request.EdbDateDT {
				if edbInfo, ok := edbInfoMap[cell.EdbInfoId]; ok {
					cell.ShowValue = edbInfo.EndDate
					cell.DataTime = edbInfo.EndDate
					config[k][i] = cell
				}
			}
			row[i] = cell

			cellDataRelationMap[cell.Uid] = cell
		}
		config[k] = row
	}

	// 指标计算的结果map
	edbSourceDataMap := make(map[string]map[string]float64)

	// 单元格对应的key与他的值（只处理数据类型）
	cellKeyVal := make(map[string]float64)

	// 基础计算单元格的位置信息
	calculateCellMap := make(map[string]Cell)
	calculateChainList := make([]string, 0)

	// 处理单元格中的数据类型（除去基础计算，因为这个是依赖于其他）
	for k, row := range config {
		for i, cell := range row {
			switch cell.DataType {
			case request.EdbDT: // 指标类型
				if edbInfo, ok := edbInfoMap[cell.EdbInfoId]; ok {
					cell.ShowValue = edbInfo.EdbName
				}
			case request.InsertDataDT, request.PopInsertDataDT: // 数据类型
				if cell.DataTime == `` {
					// 指标的最新日期
					if dateValList, ok := edbDataListMap[cell.EdbInfoId]; ok {
						tmpLenData := len(dateValList)
						if tmpLenData > 0 {
							cellKeyVal[cell.Uid] = dateValList[tmpLenData-1].Value
							cell.ShowValue = utils.FormatTableDataShowValue(dateValList[tmpLenData-1].Value)
						}
					}
				} else {
					tmpDateList := strings.Split(cell.DataTime, "-")
					tmpDateValMap := make(map[string]float64)
					if len(tmpDateList) == 2 {
						//月度数据
						if dateValMap, ok := edbMonthDataListMap[cell.EdbInfoId]; ok {
							tmpDateValMap = dateValMap
						}
					} else {
						// 日度数据
						if dateValMap, ok := edbDayDataListMap[cell.EdbInfoId]; ok {
							tmpDateValMap = dateValMap
						}

					}
					if val, ok2 := tmpDateValMap[cell.DataTime]; ok2 {
						//cell.ShowValue = fmt.Sprint(val)
						cellKeyVal[cell.Uid] = val
						cell.ShowValue = utils.FormatTableDataShowValue(val)
					}
				}
			case request.CustomTextDT: //自定义文本
				if cell.Value == `` {
					continue
				}
				// 处理看下能否转成float，如果可以的话，说明这个也是可以参与计算的
				tmpDeci, tmpErr := decimal.NewFromString(cell.Value)
				if tmpErr == nil {
					tmpVal, _ := tmpDeci.Float64()
					cellKeyVal[cell.Uid] = tmpVal

					calculateCellMap[cell.Uid] = Cell{
						Column:   k,
						Row:      i,
						CellInfo: cell,
					}
				}

			case request.FormulateCalculateDataDT: // 公式计算（A+B这种）
				calculateCellMap[cell.Uid] = Cell{
					Column:   k,
					Row:      i,
					CellInfo: cell,
				}

				calculateChainList = append(calculateChainList, cell.Uid)

			case request.InsertEdbCalculateDataDT: // 插入指标系统计算公式生成的值
				// 日期
				var cellDateTime string
				// 日期关系配置不存在，则默认最新数据
				if relationConf, ok := cellRelationConfMap[cell.Uid]; ok {
					if relationConf.RelationDate.Key == `` {
						// 日期关系配置未绑定
						continue
					}
					// 配置
					relationCell, ok := cellDataRelationMap[relationConf.RelationDate.Key]
					if !ok {
						// 找不到对应日期的单元格
						continue
					}
					cellDateTime = relationCell.DataTime
				}

				var tmpDataMap map[string]float64

				key := utils.MD5(cell.Value)
				tmpDataMap, ok := edbSourceDataMap[key]
				if !ok {
					// 对应的配置值
					var tmpConfig request.CalculateConf
					err = json.Unmarshal([]byte(cell.Value), &tmpConfig)
					if err != nil {
						return
					}

					tmpDataList, ok := edbDataListMap[tmpConfig.EdbInfoId]
					if !ok {
						continue
					}
					edbInfo, ok := edbInfoMap[tmpConfig.EdbInfoId]
					if !ok {
						continue
					}

					req2 := &BaseCalculate{
						DataList:      tmpDataList,
						Frequency:     tmpConfig.Frequency,
						Formula:       tmpConfig.Formula,
						Calendar:      tmpConfig.Calendar,
						MoveType:      tmpConfig.MoveType,
						MoveFrequency: tmpConfig.MoveFrequency,
						FromFrequency: edbInfo.Frequency,
						Source:        tmpConfig.Source,
					}

					// 调用指标库去更新
					reqJson, tmpErr := json.Marshal(req2)
					if tmpErr != nil {
						utils.FileLog.Error(fmt.Sprintf("计算失败1，配置信息;%s;错误原因：%s", cell.Value, tmpErr.Error()))
						err = tmpErr
						return
					}
					respItem, tmpErr := data.BaseCalculate(string(reqJson))
					if tmpErr != nil {
						utils.FileLog.Error(fmt.Sprintf("计算失败2，配置信息;%s;错误原因：%s", cell.Value, tmpErr.Error()))
						err = tmpErr
						return
					}
					if respItem.Ret != 200 {
						utils.FileLog.Error(fmt.Sprintf("计算失败3，配置信息;%s;原因：%s;错误原因：%s", cell.Value, respItem.Msg, respItem.ErrMsg))
						continue
					}

					tmpDataMap = respItem.Data.DataMap
					// 计算结果存一份，万一存在重复的计算方式，那么省的重新计算一下
					edbSourceDataMap[key] = tmpDataMap

					lenDataList := len(respItem.Data.DateList)
					if cellDateTime == `` && lenDataList > 0 {
						cellDateTime = respItem.Data.DateList[lenDataList-1]
					}
				}

				val := tmpDataMap[cellDateTime]
				cellKeyVal[cell.Uid] = val
				cell.ShowValue = utils.FormatTableDataShowValue(val)
			}

			row[i] = cell
		}
		config[k] = row
	}

	// 公式链计算
	if len(calculateChainList) > 0 {
		for _, cellKey := range calculateChainList {
			// 查找这个单元格的位置，直接map找了，而不是遍历整个单元格
			cellPosition, ok := calculateCellMap[cellKey]
			if !ok {
				utils.FileLog.Error("找不到单元格位置：", cellKey)
				continue
			}

			cell := config[cellPosition.Column][cellPosition.Row]
			if cell.DataType != request.FormulateCalculateDataDT { // 判断公式计算（A+B这种）类型，不是的话也过滤了
				continue
			}

			val, tmpErr, has := getCalculateValueByCell(calculateCellMap, cellKey, cellKeyVal)
			if tmpErr != nil {
				err = tmpErr
				return
			}
			if !has {
				continue
			}

			cellKeyVal[cell.Uid] = val
			cell.ShowValue = utils.FormatTableDataShowValue(val)
			config[cellPosition.Column][cellPosition.Row] = cell

		}
	}

	newMixedTableCellDataList = config

	return
}

// getCalculateValue 获取公式计算的结果
func getCalculateValueByCell(calculateCellMap map[string]Cell, key string, cellKeyValMap map[string]float64) (val float64, err error, has bool) {
	// 单元格的标签名
	val, ok := cellKeyValMap[key]
	if ok {
		has = true
		return
	}

	// 查找单元格数据
	cell, ok := calculateCellMap[key]
	if !ok {
		err = errors.New("查找单元格" + key + "的数据失败")
		return
	}

	colData := cell.CellInfo

	// 如果不是基础计算单元格,直接返回
	if colData.DataType != request.FormulateCalculateDataDT {
		return
	}

	// 如果是计算单元格

	tagList := make([]utils.CellPosition, 0)
	// 计算单元格relationCellList
	var relationCellList []request.RelationCell
	if colData.Extra == `` {
		err = errors.New(colData.Uid + "没有绑定关系")
		return
	}

	for _, relation := range relationCellList {
		//relationCellTagName := strings.ToUpper(relation.Tag) + relation.Row
		tmpVal, tmpErr, _ := getCalculateValueByCell(calculateCellMap, relation.Key, cellKeyValMap)
		if tmpErr != nil {
			err = tmpErr
			return
		}
		cellKeyValMap[relation.Key] = tmpVal

		rowInt, tmpErr := strconv.Atoi(relation.Row)
		if tmpErr != nil {
			err = tmpErr
			return
		}

		tagList = append(tagList, utils.CellPosition{
			Tag:   relation.Tag,
			Row:   rowInt,
			Value: tmpVal,
		})
	}

	// 计算
	val, _, err = calculateByCellList(strings.ToUpper(colData.Value), tagList)
	if err != nil {
		return
	}
	// 重新赋值
	has = true
	cellKeyValMap[key] = val

	return
}

// handleConfig
// @Description: 处理混合表格配置
// @author: Roc
// @datetime2023-10-27 13:24:53
// @param configList [][]request.MixedTableCellDataReq
// @return newConfig [][]request.MixedTableCellDataReq
// @return edbInfoIdList []int
// @return dataEdbInfoIdList []int
// @return err error
// @return errMsg string
func handleConfig(configList [][]request.MixedTableCellDataReq) (newConfig [][]request.MixedTableCellDataReq, edbInfoIdList []int, dataEdbInfoIdList []int, err error, errMsg string) {
	edbInfoIdList = make([]int, 0)
	dataEdbInfoIdList = make([]int, 0)

	for ck, rowList := range configList {
		for rk, cell := range rowList {
			switch cell.DataType {
			case request.EdbDT: // 指标信息
				edbInfoIdList = append(edbInfoIdList, cell.EdbInfoId)
			case request.InsertDataDT, request.PopInsertDataDT: // 插值、弹框插值
				dataEdbInfoIdList = append(dataEdbInfoIdList, cell.EdbInfoId)
			case request.InsertEdbCalculateDataDT: // 插入指标计算公式生成的值
				var config request.CalculateConf
				err = json.Unmarshal([]byte(cell.Value), &config)
				if err != nil {
					return
				}
				edbInfoIdList = append(edbInfoIdList, config.EdbInfoId)
				dataEdbInfoIdList = append(dataEdbInfoIdList, cell.EdbInfoId)

			case request.DateDT: // 日期类型
				if cell.DataTimeType == request.EdbDateDT {
					var config request.EdbDateConf
					err = json.Unmarshal([]byte(cell.Value), &config)
					if err != nil {
						return
					}
					edbInfoIdList = append(edbInfoIdList, config.EdbInfoId)
				} else {
					date, tmpErr, tmpErrMsg := handleDate(cell.DataTimeType, cell.Value)
					if tmpErr != nil {
						err = tmpErr
						errMsg = tmpErrMsg
						return
					}
					rowList[rk].DataTime = date
					rowList[rk].ShowValue = date
				}
			}
		}
		configList[ck] = rowList
	}

	newConfig = configList

	return
}

// HandleDate
// @Description: 日期处理
// @author: Roc
// @datetime2023-10-27 09:37:02
// @param dataTimeType int
// @param val string
// @return date string
// @return err error
// @return errMsg string
func HandleDate(dataTimeType int, val string) (date string, err error, errMsg string) {
	return handleDate(dataTimeType, val)
}

// handleDate
// @Description: 日期处理
// @author: Roc
// @datetime2023-10-27 09:36:49
// @param dataTimeType int
// @param val string
// @return date string
// @return err error
// @return errMsg string
func handleDate(dataTimeType int, val string) (date string, err error, errMsg string) {
	if val == `` {
		errMsg = "错误的日期数据"
		err = errors.New(errMsg)
		return
	}
	switch dataTimeType {
	case request.CustomDateT: //手动输入日期
		date = val
	case request.SystemDateT: // 系统日期
		date, err, errMsg = handleSystemDateT(val)
	case request.EdbDateDT: // 导入指标日期（指标库的最新日期）
	default:
		errMsg = "错误的日期类型"
		err = errors.New(errMsg)
		return
	}

	return
}

// handleSystemDateT
// @Description: 处理导入系统日期
// @author: Roc
// @datetime2023-10-27 09:36:21
// @param confStr string
// @return date string
// @return err error
// @return errMsg string
func handleSystemDateT(confStr string) (date string, err error, errMsg string) {
	var config request.SystemDateConf
	err = json.Unmarshal([]byte(confStr), &config)
	if err != nil {
		return
	}
	switch config.Source {
	case request.SystemCurrDateT:
		date = time.Now().Format(utils.FormatDate)
	case request.SystemCalculateDateT:
		date, err, errMsg = handleSystemCalculateDateT(config.CalculateNum, config.CalculateFrequency)
	case request.SystemFrequencyDateT: // 处理系统日期相关的指定频率（所在周/旬/月/季/半年/年的最后/最早一天）
		date, err, errMsg = handleSystemAppointDateT(config.Day, config.Frequency)
	default:
		errMsg = "错误的日期日期导入方式"
		err = errors.New(fmt.Sprint("错误的日期日期导入方式:", config.Source))
		return
	}

	return
}

// handleSystemCalculateDateT
// @Description: 处理系统日期计算后的日期
// @author: Roc
// @datetime2023-10-27 09:31:22
// @param num int
// @param frequency string
// @return date string
// @return err error
// @return errMsg string
func handleSystemCalculateDateT(num int, frequency string) (date string, err error, errMsg string) {
	if err != nil {
		return
	}
	currDate := time.Now()
	switch frequency {
	case "", "日":
		date = currDate.AddDate(0, 0, num).Format(utils.FormatDate)
	default:
		errMsg = "错误的日期频度：" + frequency
		err = errors.New(errMsg)
		return
	}

	return
}

// handleSystemAppointDateT
// @Description: 处理系统日期相关的指定频率（所在周/旬/月/季/半年/年的最后/最早一天）
// @author: Roc
// @datetime2023-10-27 09:31:35
// @param Frequency string
// @param Day string
// @return date string
// @return err error
// @return errMsg string
func handleSystemAppointDateT(appointDay, frequency string) (date string, err error, errMsg string) {
	currDate := time.Now()
	switch frequency {
	case "本周":
		day := int(currDate.Weekday())
		if day == 0 { // 周日
			day = 7
		}
		num := 0
		switch appointDay {
		case "周一":
			num = 1
		case "周二":
			num = 2
		case "周三":
			num = 3
		case "周四":
			num = 4
		case "周五":
			num = 5
		case "周六":
			num = 6
		case "周日":
			num = 7
		}
		day = num - day
		date = currDate.AddDate(0, 0, day).Format(utils.FormatDate)
	case "本旬":
		day := currDate.Day()
		var tmpDate time.Time
		switch appointDay {
		case "第一天":
			if day <= 10 {
				tmpDate = time.Date(currDate.Year(), currDate.Month(), 1, 0, 0, 0, 0, currDate.Location())
			} else if day <= 20 {
				tmpDate = time.Date(currDate.Year(), currDate.Month(), 11, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), currDate.Month(), 21, 0, 0, 0, 0, currDate.Location())
			}
		case "最后一天":
			if day <= 10 {
				tmpDate = time.Date(currDate.Year(), currDate.Month(), 10, 0, 0, 0, 0, currDate.Location())
			} else if day <= 20 {
				tmpDate = time.Date(currDate.Year(), currDate.Month(), 20, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), currDate.Month()+1, 1, 0, 0, 0, 0, currDate.Location()).AddDate(0, 0, -1)
			}
		}
		date = tmpDate.Format(utils.FormatDate)
	case "本月":
		var tmpDate time.Time
		switch appointDay {
		case "第一天":
			tmpDate = time.Date(currDate.Year(), currDate.Month(), 1, 0, 0, 0, 0, currDate.Location())
		case "最后一天":
			tmpDate = time.Date(currDate.Year(), currDate.Month()+1, 1, 0, 0, 0, 0, currDate.Location()).AddDate(0, 0, -1)
		}
		date = tmpDate.Format(utils.FormatDate)
	case "本季":
		month := currDate.Month()
		var tmpDate time.Time
		switch appointDay {
		case "第一天":
			if month <= 3 {
				tmpDate = time.Date(currDate.Year(), 1, 1, 0, 0, 0, 0, currDate.Location())
			} else if month <= 6 {
				tmpDate = time.Date(currDate.Year(), 4, 1, 0, 0, 0, 0, currDate.Location())
			} else if month <= 9 {
				tmpDate = time.Date(currDate.Year(), 7, 1, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), 10, 1, 0, 0, 0, 0, currDate.Location())
			}
		case "最后一天":
			if month <= 3 {
				tmpDate = time.Date(currDate.Year(), 3, 31, 0, 0, 0, 0, currDate.Location())
			} else if month <= 6 {
				tmpDate = time.Date(currDate.Year(), 6, 30, 0, 0, 0, 0, currDate.Location())
			} else if month <= 9 {
				tmpDate = time.Date(currDate.Year(), 9, 30, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, currDate.Location())
			}
		}
		date = tmpDate.Format(utils.FormatDate)
	case "本半年":
		month := currDate.Month()
		var tmpDate time.Time
		switch appointDay {
		case "第一天":
			if month <= 6 {
				tmpDate = time.Date(currDate.Year(), 1, 1, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), 7, 1, 0, 0, 0, 0, currDate.Location())
			}
		case "最后一天":
			if month <= 6 {
				tmpDate = time.Date(currDate.Year(), 6, 30, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, currDate.Location())
			}
		}
		date = tmpDate.Format(utils.FormatDate)
	case "本年":
		var tmpDate time.Time
		switch appointDay {
		case "第一天":
			tmpDate = time.Date(currDate.Year(), 1, 1, 0, 0, 0, 0, currDate.Location())
		case "最后一天":
			tmpDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, currDate.Location())
		}
		date = tmpDate.Format(utils.FormatDate)
	default:
		errMsg = "错误的日期频度：" + frequency
		err = errors.New(errMsg)
		return
	}

	return
}

// calculateByCellList
// @Description: 根据单元格来进行公式计算
// @author: Roc
// @datetime2023-11-14 16:17:38
// @param calculateFormula string
// @param tagList []utils.CellPosition
// @return calVal string
// @return errMsg string
// @return err error
func calculateByCellList(calculateFormula string, tagList []utils.CellPosition) (calVal float64, errMsg string, err error) {
	if calculateFormula == "" {
		errMsg = "公式异常"
		err = errors.New(errMsg)
		return
	}

	calculateFormula = strings.TrimPrefix(calculateFormula, "=")
	calculateFormula = strings.Replace(calculateFormula, "（", "(", -1)
	calculateFormula = strings.Replace(calculateFormula, "）", ")", -1)
	calculateFormula = strings.Replace(calculateFormula, "，", ",", -1)
	calculateFormula = strings.Replace(calculateFormula, "。", ".", -1)
	calculateFormula = strings.Replace(calculateFormula, "%", "*0.01", -1)

	rowList := make([]int, 0)
	rowListMap := make(map[int][]utils.CellPosition)
	for _, v := range tagList {
		tmpRowList, ok := rowListMap[v.Row]
		if !ok {
			rowList = append(rowList, v.Row)
			tmpRowList = make([]utils.CellPosition, 0)
		}
		tmpRowList = append(tmpRowList, v)
		rowListMap[v.Row] = tmpRowList
	}

	sort.Ints(rowList)

	list := make([]utils.CellPosition, 0)
	for _, row := range rowList {
		list = append(list, rowListMap[row]...)
	}

	formulaFormStr := utils.ReplaceFormulaByCellList(list, calculateFormula)
	//计算公式异常，那么就移除该指标
	if formulaFormStr == `` {
		errMsg = "公式异常"
		err = errors.New(errMsg)
		return
	}

	expression := formula.NewExpression(formulaFormStr)
	calResult, err := expression.Evaluate()
	if err != nil {
		errMsg = "计算失败"
		err = errors.New("计算失败：Err:" + err.Error() + ";formulaStr:" + formulaFormStr)
		// 分母为0的报错
		if strings.Contains(err.Error(), "divide by zero") {
			errMsg = "分母不能为0"
			err = errors.New("分母不能为空，计算公式：" + formulaFormStr)
		}
		return
	}
	// 如果计算结果是NAN，那么就提示报错
	if calResult.IsNan() {
		errMsg = "计算失败"
		err = errors.New("计算失败：计算结果是:NAN;formulaStr:" + formulaFormStr)
		return
	}
	calVal, err = calResult.Float64()
	if err != nil {
		return
	}

	// 转Decimal然后四舍五入
	calVal, _ = decimal.NewFromFloat(calVal).Round(4).Float64()

	return
}