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" //配件价格 fittingPrice := int64(0) 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)) } //最小/最大价格要加配件 fittingPrice = *fittingPriceInfo.Price minPrice += fittingPrice maxPrice += fittingPrice //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) for rIndex, rangeInfo := range stepPrice.PriceRange { //最后一个 if rIndex+1 == rangeLen { begin := format.NumToStringWithThousandthPercentile(fmt.Sprintf("%d", rangeInfo.StartQuantity)) stepRange = append(stepRange, map[string]interface{}{ "start": rangeInfo.StartQuantity, "end": rangeInfo.EndQuantity, "range_description": fmt.Sprintf(">=%s Units", begin), "item_price": format.CentitoDollar(rangeInfo.Price+fittingPrice, 3), }) break } begin := format.NumToStringWithThousandthPercentile(fmt.Sprintf("%d", rangeInfo.StartQuantity)) end := format.NumToStringWithThousandthPercentile(fmt.Sprintf("%d", rangeInfo.EndQuantity)) stepRange = append(stepRange, map[string]interface{}{ "start": rangeInfo.StartQuantity, "end": rangeInfo.EndQuantity, "range_description": fmt.Sprintf("%s-%s Units", begin, end), "item_price": format.CentitoDollar(rangeInfo.Price+fittingPrice, 3), }) } //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") } 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, "min_buy_units_quantity_total_price": format.CentitoDollarWithNoHalfAdjust(minBuyUnitsQuantityPrice*stepPrice.MinBuyUnitsNum, 2), "min_buy_units_quantity_item_price": format.CentitoDollar(minBuyUnitsQuantityPrice, 3), } } 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) // }