Refactor main

Convert components to Singletons
Restructure main package
Reduce dependencies

internal/taskManager/ldapSyncService.go

@@ -0,0 +1,36 @@
+// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
+// All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+package taskManager
+
+import (
+	"time"
+
+	"github.com/ClusterCockpit/cc-backend/internal/auth"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/go-co-op/gocron/v2"
+)
+
+func RegisterLdapSyncService(ds string) {
+	interval, err := parseDuration(ds)
+	if err != nil {
+		log.Warnf("Could not parse duration for sync interval: %v",
+			ds)
+		return
+	}
+
+	auth := auth.GetAuthInstance()
+
+	log.Info("Register LDAP sync service")
+	s.NewJob(gocron.DurationJob(interval),
+		gocron.NewTask(
+			func() {
+				t := time.Now()
+				log.Printf("ldap sync started at %s", t.Format(time.RFC3339))
+				if err := auth.LdapAuth.Sync(); err != nil {
+					log.Errorf("ldap sync failed: %s", err.Error())
+				}
+				log.Print("ldap sync done")
+			}))
+}