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235 lines
6.6 KiB
235 lines
6.6 KiB
/**
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* 计算佣金
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* 2020/05/22
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*/
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package ordercalc
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import (
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"errors"
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"strings"
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"git.tetele.net/tgo/helper"
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)
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/**
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* 计算某一商品对分销商的分销价
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* @param business 分销商信息
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* @param productSpecialPrice 分销特殊价格
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* @param distributionPrice 基础分销价
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* @param percentage 分销比例
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* @param productPrice 商品销售价
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* 2020/05/22
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* gz
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*/
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func DistributionPrice(business map[string]string, productSpecialPrice []map[string]string, distributionPrice interface{}, percentAge interface{}, productPrice interface{}) (float64, error) {
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product_price := helper.ToString(productPrice)
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if len(business) < 1 {
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return 0, errors.New("参数错误")
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}
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_, idExist := business["Id"]
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_, levelIdExist := business["LevelId"]
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if !idExist || !levelIdExist {
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return 0, errors.New("分销商参数错误")
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}
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distribution_price := helper.ToString(distributionPrice)
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distribution_price_float, err := helper.ToFloat64(distributionPrice)
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if err != nil {
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return 0, err
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}
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percent_age := helper.ToString(percentAge)
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if len(productSpecialPrice) < 1 && percent_age == "" {
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return distribution_price_float, nil //没有特殊价格，没有分销比例，返回原分销价
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}
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var formula string //分销价计算公式
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var is_special_price bool = false //是否使用特殊价格方式，因特殊价格中可能只能会员价，记录以供再次判断
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var ok bool
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if len(productSpecialPrice) > 0 { //特殊价格方式
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is_special_price = true //有一条特殊价格，则是使用特殊价
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for _, item := range productSpecialPrice {
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if _, ok = item["BusinessId"]; ok {
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if item["BusinessId"] != "0" && item["BusinessId"] == business["Id"] {
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formula = item["DistributionPrice"]
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break
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}
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}
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if _, ok = item["BusinessLevelId"]; ok {
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if item["BusinessLevelId"] != "0" && item["BusinessLevelId"] == business["LevelId"] {
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formula = item["DistributionPrice"]
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}
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}
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}
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}
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var price []string
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var result float64 = 0 //最终分销价
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if is_special_price {
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if formula != "" {
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formula = strings.Replace(formula, "#distribution_price#", distribution_price, 1)
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} else {
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formula = distribution_price
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}
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//计算表达式
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switch {
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case strings.Contains(formula, "+"):
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price = strings.Split(formula, "+")
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result = helper.FloatAdd(price[0], price[1])
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case strings.Contains(formula, "-"):
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price = strings.Split(formula, "-")
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result = helper.FloatSub(price[0], price[1])
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case strings.Contains(formula, "*"):
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price = strings.Split(formula, "*")
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result = helper.FloatMul(price[0], price[1], 2)
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case strings.Contains(formula, "/"):
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price = strings.Split(formula, "/")
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result = helper.FloatQuo(price[0], price[1], 2)
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default:
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//使用固定价格或者使用基础分销价
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if formula != "" {
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result, _ = helper.ToFloat64(formula)
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} else {
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result = distribution_price_float
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}
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}
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} else {
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//使用分销比例
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if product_price == "" {
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return 0, errors.New("商品价格错误")
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}
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price = strings.Split(percent_age, ":")
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totalCommission := helper.FloatSub(productPrice, distributionPrice) //总佣金
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if totalCommission <= 0 {
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return helper.ToFloat64(productPrice) //总佣金为负，返回商品原价
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}
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if _, ok = business["Grade"]; ok {
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level_count := len(price) //分销级数
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var totalPercent, cent, commission float64 //总分配份数,分销比例,获得的佣金
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switch level_count {
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case 3:
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totalPercent = helper.FloatAdd(price[0], price[1], price[2])
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if totalPercent <= 0 {
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result = distribution_price_float //佣金分配比例为0，返回基础分销价
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} else {
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switch business["Grade"] {
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case "1":
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//一级分销商得到所有佣金
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cent = 1 //分销比例
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case "2":
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//二级分销商得到所有佣金
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cent = helper.FloatQuo(helper.FloatAdd(price[0], price[1]), totalPercent) //分销比例
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case "0", "3":
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//三级或无级别分销商得到所有佣金
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cent = helper.FloatQuo(price[0], totalPercent) //分销比例
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}
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commission = helper.FloatMul(totalCommission, cent, 2)
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result = helper.FloatSub(productPrice, commission) //分销价＝商品价－佣金
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}
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case 2:
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totalPercent = helper.FloatAdd(price[0], price[1])
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if totalPercent <= 0 {
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result = distribution_price_float //佣金分配比例为0，返回基础分销价
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} else {
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switch business["Grade"] {
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case "1":
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//一级分销商得到所有佣金
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cent = 1 //分销比例
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case "0", "2":
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//二级或无级别分销商得到所有佣金
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cent = helper.FloatQuo(price[0], totalPercent) //分销比例
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}
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commission = helper.FloatMul(totalCommission, cent, 2)
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result = helper.FloatSub(productPrice, commission) //分销价＝商品价－佣金
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}
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case 1:
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//只有一级
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result = distribution_price_float
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}
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} else {
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return 0, errors.New("分销商参数错误，没有分销级别")
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}
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}
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if result < 0 {
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result, _ = helper.ToFloat64(productPrice)
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}
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return result, nil
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}
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/**
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* 计算某一商品的VIP价
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* @param productSpecialPrice 特殊价格
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* @param productPrice 商品销售价
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* 2020/06/05
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* gz
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*/
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func VipPrice(productSpecialPrice []map[string]string, productPrice interface{}) (float64, error) {
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product_price := helper.ToString(productPrice)
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product_price_float, _ := helper.ToFloat64(productPrice)
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if len(productSpecialPrice) < 1 {
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return product_price_float, nil //没有特殊价格，返回原价
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}
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var formula string //VIP价计算公式
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var ok bool
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for _, item := range productSpecialPrice {
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if _, ok = item["RetailPrice"]; ok {
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if item["RetailPrice"] != "" {
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formula = item["RetailPrice"]
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break
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}
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}
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}
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if formula != "" {
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formula = strings.Replace(formula, "#retail_price#", product_price, 1)
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} else {
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formula = product_price
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}
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//计算表达式
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var price []string
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var result float64 = 0 //最终VIP价
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switch {
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case strings.Contains(formula, "+"):
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price = strings.Split(formula, "+")
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result = helper.FloatAdd(price[0], price[1])
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case strings.Contains(formula, "-"):
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price = strings.Split(formula, "-")
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result = helper.FloatSub(price[0], price[1])
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case strings.Contains(formula, "*"):
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price = strings.Split(formula, "*")
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result = helper.FloatMul(price[0], price[1], 2)
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case strings.Contains(formula, "/"):
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price = strings.Split(formula, "/")
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result = helper.FloatQuo(price[0], price[1], 2)
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default:
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result = product_price_float
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}
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if result < 0 || result > product_price_float {
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result = product_price_float
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}
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return result, nil
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}
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