feat: Add reprocess command

internal/app/app.go

@@ -22,6 +22,7 @@ import (
 	transporthttp "gis/internal/transport/http"
 
 	"github.com/go-playground/validator/v10"
+	"github.com/google/uuid"
 	"github.com/jackc/pgx/v5/pgxpool"
 )
 
@@ -171,6 +172,12 @@ func (a *App) ExampleConsumer() *rabbitmq.Consumer {
 // Publisher returns the RabbitMQ publisher.
 func (a *App) Publisher() *rabbitmq.Publisher { return a.publisher }
 
+// ReprocessDataset re-enqueues the processing job for the dataset with the given
+// id, restarting its asynchronous pipeline.
+func (a *App) ReprocessDataset(ctx context.Context, id uuid.UUID) (domain.Dataset, error) {
+	return a.datasets.Reprocess(ctx, id)
+}
+
 // Close releases all resources in reverse order of acquisition.
 func (a *App) Close() {
 	if a.rabbit != nil {

internal/cli/reprocess.go

@@ -0,0 +1,44 @@
+package cli
+
+import (
+	"fmt"
+
+	"gis/internal/app"
+
+	"github.com/google/uuid"
+	"github.com/spf13/cobra"
+)
+
+var reprocessCmd = &cobra.Command{
+	Use:   "reprocess <dataset-id>",
+	Short: "Re-enqueue the processing job for an uploaded dataset",
+	Long: "Re-publish the RabbitMQ message that drives an uploaded dataset's\n" +
+		"asynchronous processing, selecting the right step from its file type\n" +
+		"(vector_with_kato -> parse, vector -> properties, raster -> cog).\n\n" +
+		"Example:\n" +
+		"  gis reprocess 06818b2b-1fc5-47d9-a764-db2d4cb3df75",
+	Args: cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		id, err := uuid.Parse(args[0])
+		if err != nil {
+			return fmt.Errorf("invalid dataset id %q: %w", args[0], err)
+		}
+
+		ctx, cancel := signalContext()
+		defer cancel()
+
+		application, err := app.New(ctx)
+		if err != nil {
+			return err
+		}
+		defer application.Close()
+
+		dataset, err := application.ReprocessDataset(ctx, id)
+		if err != nil {
+			return err
+		}
+		application.Log.Info("re-enqueued dataset processing",
+			"dataset_id", dataset.ID, "file_type", dataset.FileType, "status", dataset.Status)
+		return nil
+	},
+}

internal/cli/root.go

@@ -28,7 +28,7 @@ func Execute() {
 }
 
 func init() {
-	rootCmd.AddCommand(serveCmd, workerCmd, migrateCmd)
+	rootCmd.AddCommand(serveCmd, workerCmd, migrateCmd, reprocessCmd)
 }
 
 // signalContext returns a context cancelled on SIGINT or SIGTERM.

internal/service/dataset.go

@@ -211,18 +211,40 @@ func (s *DatasetService) Upload(ctx context.Context, in UploadInput) (domain.Dat
 
 	// Kick off the appropriate async job per file type. If enqueueing fails the
 	// row exists, so record the failure rather than leaving it stuck.
-	var enqueueErr error
-	switch in.FileType {
-	case domain.FileTypeVectorWithKato:
-		enqueueErr = s.jobs.EnqueueParse(ctx, dataset.ID)
-	case domain.FileTypeVector:
-		enqueueErr = s.jobs.EnqueueProperties(ctx, dataset.ID)
-	case domain.FileTypeRaster:
-		enqueueErr = s.jobs.EnqueueConvert(ctx, dataset.ID)
+	if err := s.enqueueProcessing(ctx, dataset); err != nil {
+		_ = s.repo.MarkParseFailed(ctx, dataset.ID, "failed to enqueue processing: "+err.Error())
+		return domain.Dataset{}, fmt.Errorf("enqueue processing: %w", err)
 	}
-	if enqueueErr != nil {
-		_ = s.repo.MarkParseFailed(ctx, dataset.ID, "failed to enqueue processing: "+enqueueErr.Error())
-		return domain.Dataset{}, fmt.Errorf("enqueue processing: %w", enqueueErr)
+	return dataset, nil
+}
+
+// enqueueProcessing schedules the appropriate async job for a dataset based on
+// its file type: vector_with_kato is parsed for column selection, plain vector
+// has its attribute table extracted into properties, and raster is converted to
+// a COG.
+func (s *DatasetService) enqueueProcessing(ctx context.Context, d domain.Dataset) error {
+	switch d.FileType {
+	case domain.FileTypeVectorWithKato:
+		return s.jobs.EnqueueParse(ctx, d.ID)
+	case domain.FileTypeVector:
+		return s.jobs.EnqueueProperties(ctx, d.ID)
+	case domain.FileTypeRaster:
+		return s.jobs.EnqueueConvert(ctx, d.ID)
+	default:
+		return fmt.Errorf("%w: unknown file_type %q", domain.ErrValidation, d.FileType)
+	}
+}
+
+// Reprocess re-enqueues the processing job for an existing dataset, restarting
+// its asynchronous pipeline from the step appropriate to its file type. Useful
+// for retrying after a transient failure or a worker that was behind the schema.
+func (s *DatasetService) Reprocess(ctx context.Context, id uuid.UUID) (domain.Dataset, error) {
+	dataset, err := s.repo.GetByID(ctx, id)
+	if err != nil {
+		return domain.Dataset{}, err
+	}
+	if err := s.enqueueProcessing(ctx, dataset); err != nil {
+		return domain.Dataset{}, fmt.Errorf("enqueue processing: %w", err)
 	}
 	return dataset, nil
 }