Refactor data service: rename streaming files, update gRPC service methods, and enhance stream management

services/data_service/internal/server/gprc_control_server.go

@@ -0,0 +1,69 @@
+package server
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/google/uuid"
+	pb "gitlab.michelsen.id/phillmichelsen/tessera/pkg/pb/data_service"
+	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/domain"
+	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/manager"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type GRPCControlServer struct {
+	pb.UnimplementedDataServiceControlServer
+	manager *manager.Manager
+}
+
+func NewGRPCControlServer(m *manager.Manager) *GRPCControlServer {
+	return &GRPCControlServer{
+		manager: m,
+	}
+}
+
+func (s *GRPCControlServer) StartStream(_ context.Context, _ *pb.StartStreamRequest) (*pb.StartStreamResponse, error) {
+	streamID, err := s.manager.StartStream()
+	if err != nil {
+		return nil, fmt.Errorf("failed to start stream: %w", err)
+	}
+
+	return &pb.StartStreamResponse{StreamUuid: streamID.String()}, nil
+}
+
+func (s *GRPCControlServer) ConfigureStream(_ context.Context, req *pb.ConfigureStreamRequest) (*pb.ConfigureStreamResponse, error) {
+	streamID, err := uuid.Parse(req.StreamUuid)
+	if err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "invalid stream_uuid %q: %v", req.StreamUuid, err)
+	}
+
+	// Transform identifiers from protobuf to domain format
+	var ids []domain.Identifier
+	for _, i := range req.Identifiers {
+		ids = append(ids, domain.Identifier{
+			Provider: i.Provider,
+			Subject:  i.Subject,
+		})
+	}
+
+	if err := s.manager.ConfigureStream(streamID, ids); err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "configure failed: %v", err)
+	}
+
+	return &pb.ConfigureStreamResponse{}, nil
+}
+
+func (s *GRPCControlServer) StopStream(_ context.Context, req *pb.StopStreamRequest) (*pb.StopStreamResponse, error) {
+	streamID, err := uuid.Parse(req.StreamUuid)
+	if err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "invalid stream_uuid %q: %v", req.StreamUuid, err)
+	}
+
+	err = s.manager.StopStream(streamID) // Should only error if the stream doesn't exist
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, "failed to stop stream: %v", err)
+	}
+
+	return &pb.StopStreamResponse{}, nil
+}