fusenapi/server/product/internal/logic/getproductsteppricelogic.go

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package logic
import (
"context"
"encoding/json"
"errors"
"fmt"
"fusenapi/constants"
"fusenapi/model/gmodel"
"fusenapi/utils/auth"
"fusenapi/utils/basic"
"fusenapi/utils/format"
"gorm.io/gorm"
"fusenapi/server/product/internal/svc"
"fusenapi/server/product/internal/types"
"github.com/zeromicro/go-zero/core/logx"
)
type GetProductStepPriceLogic struct {
logx.Logger
ctx context.Context
svcCtx *svc.ServiceContext
}
func NewGetProductStepPriceLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetProductStepPriceLogic {
return &GetProductStepPriceLogic{
Logger: logx.WithContext(ctx),
ctx: ctx,
svcCtx: svcCtx,
}
}
// 处理进入前逻辑w,r
// func (l *GetProductStepPriceLogic) BeforeLogic(w http.ResponseWriter, r *http.Request) {
// }
func (l *GetProductStepPriceLogic) GetProductStepPrice(req *types.GetProductStepPriceReq, userinfo *auth.UserInfo) (resp *basic.Response) {
if req.ProductId <= 0 {
return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "err param:product id")
}
//获取产品信息(只是获取id)
_, err := l.svcCtx.AllModels.FsProduct.FindOne(l.ctx, req.ProductId, "id")
if err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "the product is not exists")
}
logx.Error(err)
return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product info")
}
//查询产品价格
modelPriceList, err := l.svcCtx.AllModels.FsProductModel3d.GetAllByProductIdTag(l.ctx, req.ProductId, constants.TAG_MODEL, "id,size_id,part_id,step_price,packed_unit")
if err != nil {
logx.Error(err)
return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get model price list")
}
fittingIds := make([]int64, 0, len(modelPriceList))
for _, v := range modelPriceList {
if *v.PartId > 0 {
fittingIds = append(fittingIds, *v.PartId)
}
}
//查询配件价格列表
fittingPriceList, err := l.svcCtx.AllModels.FsProductModel3d.GetAllByIdsTag(l.ctx, fittingIds, constants.TAG_PARTS, "id,price,packed_unit")
if err != nil {
logx.Error(err)
return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get fitting price list")
}
mapFitting := make(map[int64]gmodel.FsProductModel3d)
for _, v := range fittingPriceList {
mapFitting[v.Id] = v
}
//遍历处理模型价格
mapRsp := make(map[string]interface{})
for _, modelPriceInfo := range modelPriceList {
var stepPrice gmodel.StepPriceJsonStruct
if err = json.Unmarshal(*modelPriceInfo.StepPrice, &stepPrice); err != nil {
logx.Error(err)
return resp.SetStatusWithMessage(basic.CodeJsonErr, "failed to parse step price json")
}
rangeLen := len(stepPrice.PriceRange)
if rangeLen == 0 {
return resp.SetStatusWithMessage(basic.CodeServiceErr, fmt.Sprintf("step price is not set:%d", modelPriceInfo.Id))
}
//最小单价
minPrice := stepPrice.PriceRange[rangeLen-1].Price
//最大单价
maxPrice := stepPrice.PriceRange[0].Price
//购买数步进基数
stepPurchaseQuantity := *modelPriceInfo.PackedUnit
//购买数步进基数描述
stepPurchaseQuantityDescription := "主体装箱数为步进基数"
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//配件价格
fittingPrice := int64(0)
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if *modelPriceInfo.PartId > 0 {
fittingPriceInfo, ok := mapFitting[*modelPriceInfo.PartId]
if !ok {
return resp.SetStatusWithMessage(basic.CodeServiceErr, fmt.Sprintf("fitting price is not exists:%d", *modelPriceInfo.PartId))
}
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//最小/最大价格要加配件
fittingPrice = *fittingPriceInfo.Price
minPrice += fittingPrice
maxPrice += fittingPrice
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//如果配件装箱基数比主体大,则基数以配件为主
if *fittingPriceInfo.PackedUnit > stepPurchaseQuantity {
stepPurchaseQuantity = *fittingPriceInfo.PackedUnit
stepPurchaseQuantityDescription = "配件装箱数为步进基数"
}
}
stepRange := make([]interface{}, 0, rangeLen)
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for rIndex, rangeInfo := range stepPrice.PriceRange {
//最后一个
if rIndex+1 == rangeLen {
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begin := format.NumToStringWithThousandthPercentile(fmt.Sprintf("%d", rangeInfo.StartQuantity))
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stepRange = append(stepRange, map[string]interface{}{
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"start": rangeInfo.StartQuantity,
"end": rangeInfo.EndQuantity,
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"range_description": fmt.Sprintf(">=%s Units", begin),
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"item_price": format.CentitoDollar(rangeInfo.Price+fittingPrice, 3),
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})
break
}
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begin := format.NumToStringWithThousandthPercentile(fmt.Sprintf("%d", rangeInfo.StartQuantity))
end := format.NumToStringWithThousandthPercentile(fmt.Sprintf("%d", rangeInfo.EndQuantity))
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stepRange = append(stepRange, map[string]interface{}{
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"start": rangeInfo.StartQuantity,
"end": rangeInfo.EndQuantity,
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"range_description": fmt.Sprintf("%s-%s Units", begin, end),
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"item_price": format.CentitoDollar(rangeInfo.Price+fittingPrice, 3),
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})
}
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//计算起购数量的单价
_, minBuyUnitsQuantityPrice, err := l.svcCtx.Repositories.NewShoppingCart.CaculateStepPrice(stepPrice.MinBuyUnitsNum, stepPrice, fittingPrice)
if err != nil {
return resp.SetStatusWithMessage(basic.CodeServiceErr, "failed to get min buy quantity item price")
}
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mapRsp[fmt.Sprintf("_%d", *modelPriceInfo.SizeId)] = map[string]interface{}{
"step_purchase_quantity": stepPurchaseQuantity,
"step_purchase_quantity_description": stepPurchaseQuantityDescription,
"min_price": minPrice,
"max_price": maxPrice,
"step_range": stepRange,
"min_buy_units_quantity": stepPrice.MinBuyUnitsNum,
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"min_buy_units_quantity_total_price": format.CentitoDollarWithNoHalfAdjust(minBuyUnitsQuantityPrice*stepPrice.MinBuyUnitsNum, 2),
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"min_buy_units_quantity_item_price": format.CentitoDollar(minBuyUnitsQuantityPrice, 3),
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}
}
return resp.SetStatusWithMessage(basic.CodeOK, "success", mapRsp)
}
// 处理逻辑后 w,r 如:重定向, resp 必须重新处理
// func (l *GetProductStepPriceLogic) AfterLogic(w http.ResponseWriter, r *http.Request, resp *basic.Response) {
// // httpx.OkJsonCtx(r.Context(), w, resp)
// }