feat: per-user heartbeats count metrics

services/user.go

@@ -56,6 +56,12 @@ func (srv *UserService) GetAll() ([]*models.User, error) {
 	return srv.repository.GetAll()
 }
 
+func (srv *UserService) GetActive() ([]*models.User, error) {
+	// a user is considered active if she has logged in to the web interface at least once within the last x days
+	minDate := time.Now().Add(-24 * time.Hour * time.Duration(srv.Config.App.InactiveDays))
+	return srv.repository.GetByLoggedInAfter(minDate)
+}
+
 func (srv *UserService) Count() (int64, error) {
 	return srv.repository.Count()
 }