86 lines
2.3 KiB
Go
86 lines
2.3 KiB
Go
package logic
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import (
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"context"
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"strconv"
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"lone-services/pkg/modelbase"
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"lone-services/pkg/utils"
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"lone-services/pkg/validate"
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product "lone-services/rpc/product/pb"
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"lone-services/services/product/internal/dao"
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"lone-services/services/product/internal/model"
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"lone-services/services/product/internal/svc"
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"lone-services/services/product/validator"
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"github.com/zeromicro/go-zero/core/logx"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"google.golang.org/protobuf/types/known/emptypb"
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)
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type NumberLogic struct {
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ctx context.Context
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svcCtx *svc.ServiceContext
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logx.Logger
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}
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func NewNumberLogic(ctx context.Context, svcCtx *svc.ServiceContext) *NumberLogic {
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return &NumberLogic{
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ctx: ctx,
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svcCtx: svcCtx,
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Logger: logx.WithContext(ctx),
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}
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}
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// Number 服务间增减库存：type=1 增加，type=2 减少
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func (l *NumberLogic) Number(in *product.NumberReq) (*emptypb.Empty, error) {
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var req validator.ProductNumberValidator
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if msg := validate.ValidateFromProto(in, &req); msg != utils.StringEmpty {
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return nil, status.Error(codes.InvalidArgument, msg)
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}
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if err := changeProductNumber(l.Logger, model.ProductModel{}.Init(), req.Id, req.Type, req.Number); err != nil {
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return nil, err
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}
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return &emptypb.Empty{}, nil
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}
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func changeProductNumber(logger logx.Logger, m model.ProductModel, id int64, typ uint32, number uint32) error {
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var info dao.NumberInfo
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w := modelbase.Params{
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Eq: map[string]string{"id": strconv.FormatInt(id, 10)},
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}
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if err := m.GetOne(w, &info); err != nil {
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logger.Errorf("product number get: %v", err)
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return status.Error(codes.Internal, utils.Fail.Msg)
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}
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if info.Id < 1 {
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return status.Error(codes.NotFound, utils.ErrorNotFund.Msg)
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}
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var (
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rows int64
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err error
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)
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switch typ {
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case dao.NumberTypeAdd:
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rows, err = m.IncrNumber(id, number)
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case dao.NumberTypeSub:
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rows, err = m.DecrNumber(id, number)
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default:
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return status.Error(codes.InvalidArgument, utils.ErrorParams.Msg)
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}
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if err != nil {
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logger.Errorf("product number change: %v", err)
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return status.Error(codes.Internal, utils.Fail.Msg)
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}
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if rows < 1 {
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if typ == dao.NumberTypeSub {
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return status.Error(codes.FailedPrecondition, utils.ErrorStockNotEnough.Msg)
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}
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return status.Error(codes.Internal, utils.Fail.Msg)
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}
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return nil
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}
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