chore(auth): refactor removing empty openid teams to cron job

pkg/modules/auth/openid/cron.go

@@ -0,0 +1,68 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-present Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public Licensee as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public Licensee for more details.
+//
+// You should have received a copy of the GNU Affero General Public Licensee
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package openid
+
+import (
+	"code.vikunja.io/api/pkg/log"
+	"code.vikunja.io/api/pkg/models"
+	"xorm.io/builder"
+	"xorm.io/xorm"
+
+	"code.vikunja.io/api/pkg/cron"
+	"code.vikunja.io/api/pkg/db"
+)
+
+func RemoveEmptySSOTeams(s *xorm.Session) (err error) {
+	teams := []*models.Team{}
+	err = s.
+		Where(
+			builder.NotIn("id", builder.Expr("select team_members.team_id from team_members")),
+			builder.Or(builder.Neq{"oidc_id": ""}, builder.NotNull{"oidc_id"}),
+		).
+		Find(&teams)
+	if err != nil {
+		return err
+	}
+
+	teamIDs := make([]int64, 0, len(teams))
+	for _, team := range teams {
+		teamIDs = append(teamIDs, team.ID)
+	}
+
+	log.Debugf("Deleting empty teams: %v", teamIDs)
+
+	_, err = s.In("id", teamIDs).Delete(&models.Team{})
+	return err
+}
+
+func RegisterEmptyOpenIDTeamCleanupCron() {
+	const logPrefix = "[Empty openid Team Cleanup Cron] "
+
+	err := cron.Schedule("* * * * *", func() {
+		s := db.NewSession()
+		defer s.Close()
+
+		err := RemoveEmptySSOTeams(s)
+		if err != nil {
+			log.Errorf(logPrefix+"Error removing empty openid team: %s", err)
+			return
+		}
+	})
+	if err != nil {
+		log.Fatalf("Could not empty openid teams cleanup cron: %s", err)
+	}
+}