submissions: limit active submissions to 20

pkg/service/submissions.go

@@ -9,6 +9,10 @@ import (
 	"git.itzana.me/strafesnet/maps-service/pkg/model"
 )
 
+var(
+	ActiveSubmissionsLimit = 20
+)
+
 // POST /submissions
 func (svc *Service) CreateSubmission(ctx context.Context, request *api.SubmissionCreate) (*api.ID, error) {
 	userInfo, ok := ctx.Value("UserInfo").(UserInfo)
@@ -21,6 +25,21 @@ func (svc *Service) CreateSubmission(ctx context.Context, request *api.Submissio
 		return nil, err
 	}
 
+	filter := datastore.Optional()
+	filter.Add("submitter", int64(userId))
+	filter.Add("status_id", []model.Status{model.StatusChangesRequested, model.StatusSubmitted, model.StatusUnderConstruction})
+	active_submissions, err := svc.DB.Submissions().List(ctx, filter, model.Page{
+		Number: 1,
+		Size:   int32(ActiveSubmissionsLimit),
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	if ActiveSubmissionsLimit <= len(active_submissions) {
+		return nil, ErrPermissionDenied
+	}
+
 	submission, err := svc.DB.Submissions().Create(ctx, model.Submission{
 		ID:            0,
 		DisplayName:   request.DisplayName,