sumbissions: return correct http error code

pkg/service_internal/service_internal.go

@@ -2,8 +2,10 @@ package service_internal
 
 import (
 	"context"
-	internal "git.itzana.me/strafesnet/maps-service/pkg/internal"
+	"errors"
+
 	"git.itzana.me/strafesnet/maps-service/pkg/datastore"
+	internal "git.itzana.me/strafesnet/maps-service/pkg/internal"
 	"github.com/nats-io/nats.go"
 )
 
@@ -15,6 +17,9 @@ type Service struct {
 // yay duplicate code
 func (svc *Service) NewError(ctx context.Context, err error) *internal.ErrorStatusCode {
 	status := 500
+	if errors.Is(err, datastore.ErrNotExist) {
+		status = 404
+	}
 	return &internal.ErrorStatusCode{
 		StatusCode: status,
 		Response: internal.Error{