refactor: reorganize modules and add Linux build tooling

module/ec/mall/internal/logic/ads/fetch.go

@@ -0,0 +1,50 @@
+package ads
+
+import (
+	"context"
+
+	"bsm/full/module/ec/mall/internal/impl"
+	"bsm/full/module/ec/mall/internal/models"
+	pb "bsm/full/module/ec/mall/pb"
+	"git.apinb.com/bsm-sdk/core/errcode"
+	"git.apinb.com/bsm-sdk/core/printer"
+)
+
+// 广告列表
+func Fetch(ctx context.Context, in *pb.FetchRequest) (reply *pb.AdsListReply, err error) {
+	if in.GetStoreIdentity() == "" {
+		return nil, errcode.ErrInvalidArgument
+	}
+
+	var (
+		cnt      int64 = 0
+		pageNo   int64 = in.GetPageNo()
+		pageSize int64 = in.GetPageSize()
+		offset   int64 = (pageNo - 1) * pageSize
+		params         = map[string]string{
+			"store_identity": in.GetStoreIdentity(),
+		}
+	)
+
+	// vlidate request page_no,page_size.
+	if pageNo < 1 {
+		pageNo = 1
+		offset = 0
+	}
+	if pageSize < 50 {
+		pageSize = 50
+		offset = (pageNo - 1) * pageSize
+	}
+
+	var data []*models.MallAds
+	if err := impl.DBService.Model(&models.MallAds{}).Where(params).Order("created_at desc").Count(&cnt).Offset(int(offset)).
+		Limit(int(pageSize)).Find(&data).Error; err != nil {
+		printer.Error(err.Error())
+		return nil, errcode.ErrDB
+	}
+
+	return &pb.AdsListReply{
+		Count: cnt,
+		Data:  ref(data),
+	}, nil
+}