package logic import ( "errors" "fusenapi/model/gmodel" "fusenapi/utils/auth" "fusenapi/utils/basic" "fusenapi/utils/format" "fusenapi/utils/image" "gorm.io/gorm" "sort" "strings" "context" "fusenapi/server/product/internal/svc" "fusenapi/server/product/internal/types" "github.com/zeromicro/go-zero/core/logx" ) type GetRecommandProductListLogic struct { logx.Logger ctx context.Context svcCtx *svc.ServiceContext } func NewGetRecommandProductListLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetRecommandProductListLogic { return &GetRecommandProductListLogic{ Logger: logx.WithContext(ctx), ctx: ctx, svcCtx: svcCtx, } } func (l *GetRecommandProductListLogic) GetRecommandProductList(req *types.GetRecommandProductListReq, userinfo *auth.UserInfo) (resp *basic.Response) { req.Num = 4 //写死4个 if req.Size > 0 { req.Size = image.GetCurrentSize(req.Size) } productInfo, err := l.svcCtx.AllModels.FsProduct.FindOneBySn(l.ctx, req.Sn) if err != nil { if errors.Is(err, gorm.ErrRecordNotFound) { return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "detail`s product is not found") } logx.Error(err) return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get detail product info") } var ( recommendProductList []gmodel.FsProduct ) if productInfo.RecommendProduct != nil && *productInfo.RecommendProduct != "" { recommendProductIds, err := format.StrSlicToInt64Slice(strings.Split(*productInfo.RecommendProduct, ",")) if err != nil { logx.Error(err) return resp.SetStatusWithMessage(basic.CodeServiceErr, "failed to split recommend product ids") } recommendProductList, err = l.svcCtx.AllModels.FsProduct.GetProductListByIds(l.ctx, recommendProductIds, "") if err != nil { logx.Error(err) return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get recommend product list") } } //需要填充时需要忽略的id ignoreProductIds := make([]int64, 0, len(recommendProductList)) productIds := make([]int64, 0, len(recommendProductList)) //在合并之前记住推荐的产品 mapRecommend := make(map[int64]struct{}) for _, v := range recommendProductList { ignoreProductIds = append(ignoreProductIds, v.Id) productIds = append(productIds, v.Id) mapRecommend[v.Id] = struct{}{} } //小于请求的数量则需要从产品表中随机填补上(不包含上面的产品) lenRecommendProduct := len(recommendProductList) if lenRecommendProduct < int(req.Num) { appendNum := int(req.Num) - lenRecommendProduct productList, err := l.svcCtx.AllModels.FsProduct.GetIgnoreRandomProductList(l.ctx, appendNum, ignoreProductIds) if err != nil { logx.Error(err) return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product list") } //合并列表 for _, v := range productList { productIds = append(productIds, v.Id) recommendProductList = append(recommendProductList, v) } } //查询产品价格 priceList, err := l.svcCtx.AllModels.FsProductPrice.GetPriceListByProductIds(l.ctx, productIds) if err != nil { logx.Error(err) return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product price list") } mapProductMinPrice := make(map[int64]int64) for _, v := range priceList { if v.StepPrice == nil || *v.StepPrice == "" { continue } stepPriceSlice, err := format.StrSlicToIntSlice(strings.Split(*v.StepPrice, ",")) if err != nil { logx.Error(err) return resp.SetStatusWithMessage(basic.CodeServiceErr, "failed to parse step price") } //正序排序 sort.Ints(stepPriceSlice) if min, ok := mapProductMinPrice[*v.ProductId]; ok { if min > int64(stepPriceSlice[0]) { mapProductMinPrice[*v.ProductId] = int64(stepPriceSlice[0]) } } else { mapProductMinPrice[*v.ProductId] = int64(stepPriceSlice[0]) } } //获取用户信息(不用判断存在) /*user, err := l.svcCtx.AllModels.FsUser.FindUserById(l.ctx, userinfo.UserId) if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) { logx.Error(err) return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get user") }*/ //获取产品标签相关属性 productTagPropList, err := l.svcCtx.AllModels.FsProductTagProp.GetTagPropByProductIdsWithProductTag(l.ctx, productIds) if err != nil { logx.Error(err) return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product tag property") } mapTagProp := make(map[int64][]types.CoverDefaultItem) for _, v := range productTagPropList { mapTagProp[*v.ProductId] = append(mapTagProp[*v.ProductId], types.CoverDefaultItem{ Tag: v.Title, Cover: *v.Cover, }) } list := make([]types.GetRecommandProductListRsp, 0, len(recommendProductList)) for _, v := range recommendProductList { /*r := image.ThousandFaceImageFormatReq{ Size: int(req.Size), IsThousandFace: 0, Cover: *v.Cover, CoverImg: *v.CoverImg, CoverDefault: *v.Cover, ProductId: v.Id, UserId: userinfo.UserId, } if user.Id != 0 { r.IsThousandFace = int(*user.IsThousandFace) } //千人前面处理 image.ThousandFaceImageFormat(&r)*/ isRecommend := int64(0) if _, ok := mapRecommend[v.Id]; ok { isRecommend = 1 } minPrice := int64(0) if minVal, ok := mapProductMinPrice[v.Id]; ok { minPrice = minVal } item := types.GetRecommandProductListRsp{ Id: v.Id, Sn: *v.Sn, Title: *v.Title, TitleCn: *v.TitleCn, Cover: *productInfo.Cover, CoverImg: *productInfo.CoverImg, CoverDefault: []types.CoverDefaultItem{}, Intro: *v.Intro, IsRecommend: isRecommend, MinPrice: minPrice, } if _, ok := mapTagProp[productInfo.Id]; ok { item.CoverDefault = mapTagProp[productInfo.Id] } list = append(list, item) } return resp.SetStatusWithMessage(basic.CodeOK, "success", list) }