132 lines
4.3 KiB
Go
132 lines
4.3 KiB
Go
package logic
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import (
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"errors"
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"fmt"
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"fusenapi/model/gmodel"
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"fusenapi/utils/auth"
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"fusenapi/utils/basic"
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"fusenapi/utils/format"
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"fusenapi/utils/step_price"
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"gorm.io/gorm"
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"sort"
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"strings"
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"context"
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"fusenapi/server/product/internal/svc"
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"fusenapi/server/product/internal/types"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type GetPriceByPidLogic struct {
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logx.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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func NewGetPriceByPidLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetPriceByPidLogic {
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return &GetPriceByPidLogic{
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Logger: logx.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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func (l *GetPriceByPidLogic) GetPriceByPid(req *types.GetPriceByPidReq, userinfo *auth.UserInfo) (resp *basic.Response) {
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req.Pid = strings.Trim(req.Pid, " ")
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if req.Pid == "" {
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return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "err param:pid is empty")
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}
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//获取产品信息(只是获取id)
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productInfo, err := l.svcCtx.AllModels.FsProduct.FindOneBySn(l.ctx, req.Pid, "id")
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "the product is not exists")
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}
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logx.Error(err)
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return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product info")
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}
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//查询产品价格
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priceList, err := l.svcCtx.AllModels.FsProductPrice.GetPriceListByProductIds(l.ctx, []int64{productInfo.Id})
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if err != nil {
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logx.Error(err)
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return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get price list")
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}
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if len(priceList) == 0 {
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return resp.SetStatusWithMessage(basic.CodeOK, "success:price list is empty")
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}
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//处理价格信息
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mapRsp := make(map[string]*types.GetPriceByPidRsp)
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for _, priceInfo := range priceList {
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stepNumSlice, err := format.StrSlicToIntSlice(strings.Split(*priceInfo.StepNum, ","))
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if err != nil {
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return resp.SetStatusWithMessage(basic.CodeServiceErr, fmt.Sprintf("failed to parse step num,price_id=%d", priceInfo.Id))
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}
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stepPriceSlice, err := format.StrSlicToIntSlice(strings.Split(*priceInfo.StepPrice, ","))
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if err != nil {
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return resp.SetStatusWithMessage(basic.CodeServiceErr, fmt.Sprintf("failed to parse step price,id = %d", priceInfo.Id))
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}
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lenStepNum := len(stepNumSlice)
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itemList := make([]types.PriceItem, 0, 10)
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for *priceInfo.MinBuyNum < (int64(stepNumSlice[lenStepNum-1]) + 5) {
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itemList = append(itemList, types.PriceItem{
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Num: *priceInfo.MinBuyNum,
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TotalNum: (*priceInfo.MinBuyNum) * (*priceInfo.EachBoxNum),
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Price: step_price.GetCentStepPrice(int(*priceInfo.MinBuyNum), stepNumSlice, stepPriceSlice),
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})
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*priceInfo.MinBuyNum++
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}
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//组装阶梯数量范围价格
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stepListRsp := l.dealWithStepRange(stepNumSlice, stepPriceSlice, priceInfo)
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//排序(必须放在其他逻辑之后)
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sort.Ints(stepPriceSlice)
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minPrice := float64(stepPriceSlice[0]) / 100
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maxPrice := float64(stepPriceSlice[len(stepPriceSlice)-1]) / 100
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mapKey := l.getSizePriceMapKey(*priceInfo.SizeId)
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mapRsp[mapKey] = &types.GetPriceByPidRsp{
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Items: itemList,
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MinPrice: minPrice,
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MaxPrice: maxPrice,
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StepPrice: stepListRsp,
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}
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}
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return resp.SetStatusWithMessage(basic.CodeOK, "success", mapRsp)
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}
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// 组装阶梯价格范围
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func (l *GetPriceByPidLogic) dealWithStepRange(stepNumSlice, stepPriceSlice []int, priceInfo gmodel.FsProductPrice) []types.StepPrice {
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lenStepNum := len(stepNumSlice)
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lenStepPrice := len(stepPriceSlice)
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stepListRsp := make([]types.StepPrice, 0, lenStepNum)
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for numKey, stepNum := range stepNumSlice {
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//先取最后一个
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tmpPrice := float64(stepPriceSlice[lenStepPrice-1]) / 100
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//如果同下标下面有价格
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if numKey < lenStepPrice {
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tmpPrice = float64(stepPriceSlice[numKey]) / 100
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}
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num := int64(stepNum) * (*priceInfo.EachBoxNum)
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rangeNum := types.RangeNum{}
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if numKey < lenStepNum-1 { //前面的
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nextNum := int64(stepNumSlice[numKey+1]) * (*priceInfo.EachBoxNum)
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rangeNum.Begin = num
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rangeNum.End = nextNum - 1
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} else { //最后一个
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rangeNum.Begin = num
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rangeNum.End = -1
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}
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stepListRsp = append(stepListRsp, types.StepPrice{
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RangeNum: rangeNum,
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Price: tmpPrice,
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})
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}
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return stepListRsp
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}
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// 获取mapKey
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func (l *GetPriceByPidLogic) getSizePriceMapKey(sizeId int64) string {
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return fmt.Sprintf("_%d", sizeId)
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}
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