Add gRPC server implementation and database integration for marketplace and products

internal/marketplace/adapter_grpc.go

@@ -0,0 +1,46 @@
+package marketplace
+
+import (
+	"context"
+	"github.com/jackc/pgx/v5"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	pb "sipro-mps/api/generated/v1/marketplace"
+)
+
+// AdapterGRPC implements the gRPC server for the Marketplace service.
+type AdapterGRPC struct {
+	pb.UnimplementedMarketplaceServiceServer
+	repo Repository
+}
+
+func NewAdapterGRPC(repo Repository) *AdapterGRPC {
+	return &AdapterGRPC{
+		repo: repo,
+	}
+}
+func RegisterAdapterGRPC(server *grpc.Server) (*Repository, error) {
+	conn, err := pgx.Connect(context.Background(), "postgresql://postgres:GjitkeYf%5Beq@/sipro?host=/run/postgresql")
+	if err != nil {
+		return nil, err
+	}
+	repo := NewDBRepository(conn)
+	adapter := NewAdapterGRPC(repo)
+	pb.RegisterMarketplaceServiceServer(server, adapter)
+	return &repo, nil
+}
+
+func (g *AdapterGRPC) GetMarketplaceById(ctx context.Context, r *pb.GetMarketplaceByIdRequest) (*pb.Marketplace, error) {
+	mp, err := g.repo.GetMarketplaceByID(ctx, int(r.MarketplaceId))
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, "failed to get marketplace by ID: %v", err)
+	}
+
+	return &pb.Marketplace{
+		Id:              uint64(uint32(mp.ID)),
+		BaseMarketplace: uint32(int32(mp.BaseMarketplace)),
+		AuthData:        mp.AuthData,
+		WarehouseId:     mp.WarehouseID,
+	}, nil
+}