package api

import (
	"encoding/json"
	"errors"
	"fmt"
	"io/ioutil"
	"math"
	"net/http"
	"strconv"
	"strings"
	"time"

	"tmr-watch/http/handle/restful"
	"tmr-watch/pkg/app"
	"tmr-watch/pkg/e"
	"tmr-watch/pkg/logging"

	"github.com/Anderson-Lu/gofasion/gofasion"
	"github.com/Knetic/govaluate"
	"github.com/gin-gonic/gin"
	"github.com/xormplus/xorm"
)

//配方评估相关
type Nur struct {
	Avgmonthage float64 //月龄
	Bw          float64 //体重
	Dayw        float64 //日增重
	Fetal       float64 //胎次
	Avgdim      float64 //平均泌乳天数
	Dayspre     float64 //怀孕天数
	Product     float64 //产奶量
	Fat         float64 //乳脂率
	Pro         float64 //乳蛋白率
	Lactose     float64 //乳糖率
	Source      string  //来源
	Tem         float64 //温度
	Cowsum      float64 //牛头数
	Cowclass    string  //牲畜类别
	Cowclassid  string  //牲畜类别id
	Bigcowclass string  //牲畜大类
}

//栏舍配方中的配方评估
func GETNurJudge(c *gin.Context) {
	appG := app.Gin{C: c}
	dataByte, _ := ioutil.ReadAll(c.Request.Body)
	fsion := gofasion.NewFasion(string(dataByte))
	nurstr := fsion.Get("parammaps").Json()
	parammaps := make(map[string]interface{})
	nur := Nur{}
	_ = json.Unmarshal([]byte(nurstr), &nur)       //需要json 的类型相同
	_ = json.Unmarshal([]byte(nurstr), &parammaps) //需要json 的类型相同
	tx := restful.Engine.NewSession()
	err := tx.Begin()
	defer func() {
		switch {
		case err != nil:
			fmt.Println("__error:", err)
			if tx != nil {
				tx.Rollback()
			}
		default:
			if tx != nil {
				err = tx.Commit()
			}
		}
		if tx != nil {
			tx.Close()
		}
	}()
	//获取 tb_formula_d 表中对应牲畜类别及营养价值的公式
	formulas, _ := tx.SQL("select * from tb_formula_d where cowclass = ? "+
		"and if (?='',''='', nutrition=? ) ORDER BY nutrition", nur.Bigcowclass, nur.Source, nur.Source).Query().List()
	// 根据公式和栏舍生产性能的指标计算出奶牛需要
	resnur, err := CalNUR(formulas, &nur)
	if err != nil {
		logging.Error("GETNurJudge  err: ", err)
		msg := geterrmsg(err.Error())
		appG.Response(http.StatusOK, e.ERROR, msg)
	}
	// 计算出配方提供、tmr料、采食量
	resf, err := FeedproviderV2(parammaps, tx)

	reslist := make([]map[string]interface{}, 21)
	// 将数据转成前端需要的格式
	if len(resf) > 1 {
		for key, _ := range resf[0] {
			//println(key)
			str, sort := switchname(key)
			res := make(map[string]interface{}, 0)
			res["standard"] = str
			res["cowneed"] = resnur[key] // 奶牛需要
			res["ftpro"] = resf[0][key]  // 配方提供
			res["hprov"] = resf[1][key]  // tmr料
			res["sprov"] = resf[2][key]  //采食量
			reslist[sort] = res

		}
	}

	if err != nil {
		logging.Error("GETNurJudge  err: ", err)
		msg := geterrmsg(err.Error())
		appG.Response(http.StatusOK, e.ERROR, msg)
	} else {
		appG.Response(http.StatusOK, e.SUCCESS, reslist)
	}
}

//报表配方评估
func GETNurJudgeRport(c *gin.Context) {
	appG := app.Gin{C: c}
	dataByte, _ := ioutil.ReadAll(c.Request.Body)
	fsion := gofasion.NewFasion(string(dataByte))
	nurstr := fsion.Get("parammaps").Json()
	parammaps := make(map[string]interface{})
	_ = json.Unmarshal([]byte(nurstr), &parammaps)

	tx := restful.Engine.NewSession()
	err := tx.Begin()
	defer func() {
		switch {
		case err != nil:
			fmt.Println("__error:", err)
			if tx != nil {
				tx.Rollback()
			}
		default:
			if tx != nil {
				err = tx.Commit()
			}
		}
		if tx != nil {
			tx.Close()
		}
	}()

	//CulNurReportCow("getbmdetaillist",parammaps,tx)
	res, err := CulNurReportFT(parammaps, tx)

	if err != nil {
		logging.Error("GETNurJudgeRport  err: ", err)
		//appG.Response(http.StatusOK, e.ERROR, err.Error())
		msg := geterrmsg(err.Error())
		appG.Response(http.StatusOK, e.ERROR, msg)
	} else {
		appG.Response(http.StatusOK, e.SUCCESS, res)
	}
}

//奶牛需要
func CulNurReportCow(sqlname string, parammaps map[string]interface{}, tx *xorm.Session) (map[string]interface{}, error) {

	var nur Nur
	sql, p := restful.GetSqlByNameDBT(sqlname, tx)
	s_params := make([]interface{}, 0)
	paramslist := strings.Split(p, ",")
	if len(paramslist) > 0 && p != "" {
		for _, value := range paramslist {
			s_params = append(s_params, parammaps[strings.Trim(value, " ")])
		}
	}
	res, err := tx.SQL(sql, s_params...).Query().List()

	if len(res) > 0 {
		resstr, _ := json.Marshal(res[0])
		err = json.Unmarshal(resstr, &nur)
		if err != nil {
			return nil, err
		}
	}
	formulas, _ := tx.SQL("select * from tb_formula_d where cowclass = ? and if (?='',''='', nutrition=? ) ORDER BY nutrition", nur.Bigcowclass, nur.Source, nur.Source).Query().List()

	resnur, err := CalNUR(formulas, &nur)
	if err != nil {
		return nil, err
	}
	return resnur, err

}

func CulNurReportFT(parammaps map[string]interface{}, tx *xorm.Session) (res []map[string]interface{}, err error) {
	// 获取该配方日期范围内的所有栏舍
	//barids, err := tx.SQL("SELECT trim(fp.barid) barid,fp.ccount,DATE_FORMAT(fp.date, '%Y-%m-%d')date,fp.barname FROM feedpdate fp WHERE fp.pastureid = ? AND  fp.date BETWEEN ? AND ? AND  fp.`ftid` = ? GROUP BY fp.`barid` order by fp.barid",
	//	parammaps["pastureid"], parammaps["startTime"], parammaps["stopTime"], parammaps["ftid"]).Query().List()

	barids, err := tx.SQL(`		SELECT TRIM(fp.barid) barid,IFNULL((SELECT bm.cowsum FROM barmilk bm WHERE pastureid = fp.pastureid AND barid = fp.barid AND productdate <= ? ORDER BY productdate LIMIT 1),fp.ccount) ccount,DATE_FORMAT(fp.date, '%Y-%m-%d')date,
		fp.barname FROM feedpdate fp 
		WHERE fp.pastureid = ? AND  fp.date BETWEEN ? AND ? AND  fp.ftid = ? GROUP BY fp.barid ORDER BY fp.barid`,
		parammaps["stopTime"], parammaps["pastureid"], parammaps["startTime"], parammaps["stopTime"], parammaps["ftid"]).Query().List()
	if err != nil {
		return nil, err
	}
	bartem := ""

	// 获取日期，以及日期范围校验
	dates := make([]string, 0)
	startTime, err := time.Parse("2006-01-02", parammaps["startTime"].(string))
	if err != nil {
		return nil, err
	}
	stopTime, err := time.Parse("2006-01-02", parammaps["stopTime"].(string))

	if err != nil {
		return nil, err
	}
	if stopTime.Sub(startTime) > 31*24*time.Hour {
		return nil, errors.New("日期范围过大")
	}
	for stopTime.Sub(startTime) >= 0 {
		dates = append(dates, startTime.Format("2006-01-02"))
		startTime = startTime.Add(24 * time.Hour)
	}
	parammaps["date"] = parammaps["stopTime"]
	for key, value := range barids { // 遍历栏舍
		if key == 0 {
			bartem = value["barid"].(string)
			parammaps["barid"] = value["barid"]
		}
		if bartem != value["barid"].(string) || key == len(barids)-1 || key == 0 {

			parammaps["barid"] = value["barid"]
			barres, err := FeedproviderV3(parammaps, dates, tx)
			if err != nil {
				return nil, err
			}
			//
			resnur, err := CulNurReportCow("getbmdetaillist", parammaps, tx)
			if err != nil {
				return nil, err
			}
			restem := make(map[string]interface{}, 0)

			for k, _ := range barres[0] {
				//println("wwwwwww",k)
				restem["barid"] = value["barid"].(string)
				restem["barname"] = value["barname"].(string)
				restem["ccount"] = value["ccount"].(int64)
				restem[k+"-nur"] = resnur[k]
				restem[k+"-FT"] = barres[0][k]
				restem[k+"-H"] = barres[1][k]
				restem[k+"-S"] = barres[2][k]
			}

			res = append(res, restem)
			if err != nil {
				return nil, err
			}
			bartem = value["barid"].(string)
			dates = make([]string, 0)
			parammaps["barid"] = value["barid"]
		}
		dates = append(dates, value["date"].(string))
	}
	return res, err
}

//排序
func switchname(str string) (string, int) {
	tstr := ""
	sort := 0
	switch str {
	case "dry":
		tstr = "干物质（kg）"
		sort = 0
	case "nm":
		tstr = "产奶净能（MJ）"
		sort = 1
	case "nuint":
		tstr = "奶牛能量单位(NND)"
		sort = 2
	case "cp":
		tstr = "粗蛋白（g）"
		sort = 3
	case "ca":
		tstr = " 钙（g）"
		sort = 4
	case "p":
		tstr = "磷（g）"
		sort = 5
	case "nmd":
		tstr = "产奶净能（MCal/DM）"
		sort = 6
	case "cpd":
		tstr = "粗蛋白(%DM)"
		sort = 7
	case "fat":
		tstr = "脂肪"
		sort = 8
	case "starch":
		tstr = "淀粉"
		sort = 9
	case "ndf":
		tstr = "NDF（%DM）"
		sort = 10
	case "cndf":
		tstr = "粗料中的NDF（%DM）"
		sort = 11
	case "adf":
		tstr = "ADF（%DM）"
		sort = 12
	case "cad":
		tstr = " 钙(%DM)"
		sort = 13
	case "pd":
		tstr = "磷(%DM)"
		sort = 14
	case "trans35f":
		tstr = "(3.5)饲料转化效率（kg/DM）"
		sort = 15
	case "trans4f":
		tstr = "(4.0)饲料转化效率（kg/DM）"
		sort = 16
	case "jcrate":
		tstr = "精粗比"
		sort = 17
	case "uprice":
		tstr = "日粮成本(元)"
		sort = 18
	case "upriced":
		tstr = "干物质成本（元/公斤）"
		sort = 19
	case "kprice":
		tstr = "公斤奶成本(元)	"
		sort = 20
	default:
		tstr = str
		sort = 21
	}
	return tstr, sort
}

// 计算出配方提供、tmr料、采食量
func FeedproviderV2(parammaps map[string]interface{}, tx *xorm.Session) ([]map[string]float64, error) {
	startTime, err := time.Parse("2006-01-02", parammaps["startTime"].(string))
	if err != nil {
		return nil, err
	}
	stopTime, err := time.Parse("2006-01-02", parammaps["stopTime"].(string))

	if err != nil {
		return nil, err
	}
	if stopTime.Sub(startTime) > 31*24*time.Hour {
		return nil, errors.New("日期范围过大")
	}
	dates := make([]string, 0)
	for stopTime.Sub(startTime) >= 0 {
		dates = append(dates, startTime.Format("2006-01-02"))
		startTime = startTime.Add(24 * time.Hour)
	}
	resall, err := FeedproviderV3(parammaps, dates, tx)
	return resall, err
}

func FeedproviderV3(parammaps map[string]interface{}, dates []string, tx *xorm.Session) ([]map[string]float64, error) {

	res := make(map[string]float64, 0)
	resH := make(map[string]float64, 0)
	resS := make(map[string]float64, 0)
	i := 0

	for _, date := range dates {
		i++
		//println(date)
		parammaps["date"] = date
		restem, err := Feedprovider(parammaps, tx)
		if err != nil {
			return nil, err
		}
		restemSH, err := SHprovider(parammaps, tx)
		if err != nil {
			return nil, err
		}
		var h, s float64
		if len(restemSH) > 1 {
			switch restemSH[0]["actualweightminus"].(type) {
			case string:
				h, _ = strconv.ParseFloat(restemSH[0]["actualweightminus"].(string), 64)
			}
			switch restemSH[1]["actualweightminus"].(type) {
			case string:
				s, _ = strconv.ParseFloat(restemSH[1]["actualweightminus"].(string), 64)
			}
		}
		if len(restem) > 0 {
			b, _ := strconv.ParseFloat(restem[0]["jcrate"].(string), 64)
			res["jcrate"] = res["jcrate"] + b

			resH["jcrate"] = resH["jcrate"] + h*b
			resS["jcrate"] = resS["jcrate"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["cpd"].(string), 64)
			res["cpd"] = res["cpd"] + b

			resH["cpd"] = resH["cpd"] + h*b
			resS["cpd"] = resS["cpd"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["adf"].(string), 64)
			res["adf"] = res["adf"] + b

			resH["adf"] = resH["adf"] + h*b
			resS["adf"] = resS["adf"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["ca"].(string), 64)
			res["ca"] = res["ca"] + b

			resH["ca"] = resH["ca"] + h*b
			resS["ca"] = resS["ca"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["cad"].(string), 64)
			res["cad"] = res["cad"] + b

			resH["cad"] = resH["cad"] + h*b
			resS["cad"] = resS["cad"] + s*b

			//b,_ =strconv.ParseFloat(restem[0]["cdry"].(string),64)
			//res["cdry"] =  res["cdry"]+b
			//
			//resH["cdry"] = resH["cdry"]+ h*b
			//resS["cdry"] = resS["cdry"]+ s*b

			b, _ = strconv.ParseFloat(restem[0]["cndf"].(string), 64)
			res["cndf"] = res["cndf"] + b

			resH["cndf"] = resH["cndf"] + h*b
			resS["cndf"] = resS["cndf"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["cp"].(string), 64)
			res["cp"] = res["cp"] + b

			resH["cp"] = resH["cp"] + h*b
			resS["cp"] = resS["cp"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["dry"].(string), 64)
			res["dry"] = res["dry"] + b

			resH["dry"] = resH["dry"] + h*b
			resS["dry"] = resS["dry"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["fat"].(string), 64)
			res["fat"] = res["fat"] + b

			resH["fat"] = resH["fat"] + h*b
			resS["fat"] = resS["fat"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["kprice"].(string), 64)
			res["kprice"] = res["kprice"] + b

			resH["kprice"] = resH["kprice"] + h*b
			resS["kprice"] = resS["kprice"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["nm"].(string), 64)
			res["nm"] = res["nm"] + b

			resH["nm"] = resH["nm"] + h*b
			resS["nm"] = resS["nm"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["ndf"].(string), 64)
			res["ndf"] = res["ndf"] + b

			resH["ndf"] = resH["ndf"] + h*b
			resS["ndf"] = resS["ndf"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["nm"].(string), 64)
			res["nm"] = res["nm"] + b

			resH["nm"] = resH["nm"] + h*b
			resS["nm"] = resS["nm"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["nmd"].(string), 64)
			res["nmd"] = res["nmd"] + b

			resH["nmd"] = resH["nmd"] + h*b
			resS["nmd"] = resS["nmd"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["nuint"].(string), 64)
			res["nuint"] = res["nuint"] + b

			resH["nuint"] = resH["nuint"] + h*b
			resS["nuint"] = resS["nuint"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["p"].(string), 64)
			res["p"] = res["p"] + b

			resH["p"] = resH["p"] + h*b
			resS["p"] = resS["p"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["pd"].(string), 64)
			res["pd"] = res["pd"] + b

			resH["pd"] = resH["pd"] + h*b
			resS["pd"] = resS["pd"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["starch"].(string), 64)
			res["starch"] = res["starch"] + b

			resH["starch"] = resH["starch"] + h*b
			resS["starch"] = resS["starch"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["trans4f"].(string), 64)
			res["trans4f"] = res["trans4f"] + b

			resH["trans4f"] = resH["trans4f"] + h*b
			resS["trans4f"] = resS["trans4f"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["trans35f"].(string), 64)
			res["trans35f"] = res["trans35f"] + b

			resH["trans35f"] = resH["trans35f"] + h*b
			resS["trans35f"] = resS["trans35f"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["uprice"].(string), 64)
			res["uprice"] = res["uprice"] + b

			resH["uprice"] = resH["uprice"] + h*b
			resS["uprice"] = resS["uprice"] + s*b

			b, _ = strconv.ParseFloat(restem[0]["upriced"].(string), 64)
			res["upriced"] = res["upriced"] + b

			resH["upriced"] = resH["upriced"] + h*b
			resS["upriced"] = resS["upriced"] + s*b

		}
	}

	for key, _ := range res {
		resf, _ := strconv.ParseFloat(fmt.Sprintf("%.3f", res[key]/float64(i)), 64)
		resHf, _ := strconv.ParseFloat(fmt.Sprintf("%.3f", resH[key]/float64(i)), 64)
		resSf, _ := strconv.ParseFloat(fmt.Sprintf("%.3f", resS[key]/float64(i)), 64)
		res[key] = resf
		resH[key] = resHf
		resS[key] = resSf
	}
	resAll := make([]map[string]float64, 0)
	resAll = append(resAll, res, resH, resS)
	return resAll, nil
}

func Feedprovider(parammaps map[string]interface{}, tx *xorm.Session) ([]map[string]interface{}, error) {
	sql, p := restful.GetSqlByNameDBT(parammaps["name"].(string), tx)
	s_params := make([]interface{}, 0)
	paramslist := strings.Split(p, ",")
	if len(paramslist) > 0 && p != "" {
		for _, value := range paramslist {
			s_params = append(s_params, parammaps[strings.Trim(value, " ")])
		}
	}
	res, err := tx.SQL(sql, s_params...).Query().List()

	return res, err

}

func SHprovider(parammaps map[string]interface{}, tx *xorm.Session) ([]map[string]interface{}, error) {
	sql, p := restful.GetSqlByNameDBT(parammaps["name1"].(string), tx)
	//println(parammaps["name1"].(string),sql)
	s_params := make([]interface{}, 0)
	paramslist := strings.Split(p, ",")
	if len(paramslist) > 0 && p != "" {
		for _, value := range paramslist {
			s_params = append(s_params, parammaps[strings.Trim(value, " ")])
		}
	}
	res, err := tx.SQL(sql, s_params...).Query().List()

	return res, err

}

//根据公式和栏舍生产性能的指标计算出奶牛需要
func CalNUR(formulas []map[string]interface{}, nur *Nur) (map[string]interface{}, error) {

	resmap := make(map[string]float64)
	resmapstr := make(map[string]string)
	resAll := make(map[string]interface{})

	for _, formula := range formulas {
		if formula["type"].(int64) == 0 {
			resmapstr[formula["note"].(string)] = formula["formula"].(string)
			continue
		}
		res, err := PraseFormula(formula["formula"].(string), nur)
		if err != nil {
			logging.Error("PraseFormula err", err.Error(), formula["nutrition"].(string))
			//println("PraseFormula err", err.Error(), formula["nutrition"].(string))
		}
		switch res.(type) {
		case string:
			resmapstr[formula["note"].(string)] = res.(string)
		case float64, int, float32, int64, int32, int16, int8:
			var rest float64
			switch res.(type) {
			case float64:
				rest = res.(float64)
			case int:
				rest = float64(res.(int))
			case int64:
				rest = float64(res.(int64))
			case int32:
				rest = float64(res.(int32))
			case int16:
				rest = float64(res.(int16))
			case int8:
				rest = float64(res.(int8))
			}

			switch formula["nutrition"].(string) {
			case "ADF %DM":
				resmap["adf"] = resmap["adf"] + rest
			case "NDF %DM":
				resmap["ndf"] = resmap["ndf"] + rest
			case "NFC %DM":
				resmap["nfc"] = resmap["nfc"] + rest
			//case "小肠可消化粗蛋白":
			//	resmap["cprotedm"] = resmap["cprotedm"] + rest
			case "干物质":
				resmap["dry"] = resmap["dry"] + rest
			case "淀粉":
				resmap["starch"] = resmap["starch"] + rest
			case "磷":
				resmap["p"] = resmap["p"] + rest
			case "粗料中的NDF %DM":
				resmap["cndf"] = resmap["cndf"] + rest
			case "粗料比例":
				resmap["jcrate"] = resmap["jcrate"] + rest
			case "粗蛋白":
				resmap["cp"] = resmap["cp"] + rest
			case "能量":
				resmap["nm"] = resmap["nm"] + rest
			case "脂肪":
				resmap["fat"] = resmap["fat"] + rest
			case "钙":
				resmap["ca"] = resmap["ca"] + rest
			case "饲料转化效率，标准乳/干物质":
				resmap["trans4f"] = resmap["trans4f"] + rest
			case "饲料转化效率，标准乳/干物质3.5":
				resmap["trans35f"] = resmap["trans35f"] + rest
			}

		default:
			fmt.Printf("===============%T \n", res)
		}
	}
	if resmap["dry"] == 0 { //粗蛋白%dm = 粗蛋白/干物质
		resmap["cpd"] = 0
		resmap["cad"] = 0
		resmap["pd"] = 0
		resmap["nuint"] = 0
		resmap["nmd"] = 0

	} else {
		resmap["cpd"] = resmap["cp"] / resmap["dry"] / 10
		resmap["cad"] = resmap["ca"] / resmap["dry"] / 10
		resmap["pd"] = resmap["p"] / resmap["dry"] / 10
		resmap["nuint"] = resmap["nm"] / 3.138
		resmap["nmd"] = resmap["nm"] * 0.2389 / resmap["dry"]
	}
	for key, value := range resmap {
		va, _ := strconv.ParseFloat(fmt.Sprintf("%.3f", value), 64)
		resAll[key] = va
	}
	for key, value := range resmapstr {
		//println(key, value)
		resAll[key] = value
	}
	resAll["uprice"] = ""
	resAll["upriced"] = ""
	resAll["kprice"] = ""
	return resAll, nil

}

//解析计算公式
func PraseFormula(formula string, nur *Nur) (interface{}, error) {
	str := formula
	str = strings.ReplaceAll(str, "日增重", strconv.FormatFloat(nur.Dayw, 'f', -1, 64))
	//str = strings.ReplaceAll(str, "体重",  nur.Bw)
	str = strings.ReplaceAll(str, "怀孕天数", strconv.FormatFloat(nur.Dayspre, 'f', -1, 64))
	str = strings.ReplaceAll(str, "产量", strconv.FormatFloat(nur.Product, 'f', -1, 64))

	str = strings.ReplaceAll(str, "乳脂率", strconv.FormatFloat(nur.Fat, 'f', -1, 64))
	str = strings.ReplaceAll(str, "乳蛋白率", strconv.FormatFloat(nur.Pro, 'f', -1, 64))
	str = strings.ReplaceAll(str, "乳糖率", strconv.FormatFloat(nur.Lactose, 'f', -1, 64))
	str = strings.ReplaceAll(str, "标准乳", strconv.FormatFloat(0.35*nur.Product+15*nur.Fat/100*nur.Product, 'f', -1, 64)) // 3.5乳脂率
	//str = strings.ReplaceAll(str, "标准乳", strconv.FormatFloat(0.35*nur.Product+18.57*nur.Fat/100*nur.Product, 'f', -1, 64))
	//println("标准乳--",strconv.FormatFloat(0.4*nur.Product+15*nur.Fat/100*nur.Product, 'f', -1, 64))
	str = strings.ReplaceAll(str, "泌乳天数", strconv.FormatFloat(nur.Avgdim, 'f', -1, 64))
	str = strings.ReplaceAll(str, "月龄", strconv.FormatFloat(nur.Avgmonthage, 'f', -1, 64))
	str = strings.ReplaceAll(str, "温度", strconv.FormatFloat(nur.Tem, 'f', -1, 64))
	str = strings.ReplaceAll(str, "胎次", strconv.FormatFloat(nur.Fetal, 'f', -1, 64))
	str = strings.ReplaceAll(str, "体重", strconv.FormatFloat(nur.Bw, 'f', -1, 64))

	str = strings.ReplaceAll(str, "Math.pow", "Mathpow")
	str = strings.ReplaceAll(str, "Math.round", "Mathround")
	str = strings.ReplaceAll(str, "Math.log", "Mathlog")
	str = strings.ReplaceAll(str, "Math.exp", "Mathexp")

	//str := "(体重>200?4.2/0.55*Math.pow(体重,0.75):3.5/0.55*Math.pow(体重,0.75))"
	functions := map[string]govaluate.ExpressionFunction{
		"strlen": func(args ...interface{}) (interface{}, error) {
			length := len(args[0].(string))
			return (float64)(length), nil
		},
		"Mathpow": func(args ...interface{}) (interface{}, error) {
			c := math.Pow(args[0].(float64), args[1].(float64))
			return (float64)(c), nil
		},
		"Mathround": func(args ...interface{}) (interface{}, error) {
			c := math.Round(args[0].(float64))
			return (float64)(c), nil
		},
		"Mathlog": func(args ...interface{}) (interface{}, error) {
			c := math.Log(args[0].(float64))
			return (float64)(c), nil
		},
		"Mathexp": func(args ...interface{}) (interface{}, error) {
			c := math.Exp(args[0].(float64))
			return (float64)(c), nil
		},
	}

	expression, err := govaluate.NewEvaluableExpressionWithFunctions(str, functions)
	if err != nil {
		return 0, err
	}
	//fmt.Printf("== %+v\n", str)
	result, err := expression.Evaluate(nil)
	//fmt.Printf("== %+v\n", result)
	if err != nil || result == nil {
		return 0, err
	}
	return result, err
}