Revert "Session log: close unfinished sessions on startup (#10246)"

This reverts commit e22564dfe2.

core/session/db.go

@@ -12,6 +12,11 @@ type DB struct {
 	name string
 }
 
+type Database interface {
+	New(startEnergy float64) *Session
+	Persist(session interface{})
+}
+
 // NewStore creates a session store
 func NewStore(name string, db *gorm.DB) (*DB, error) {
 	err := db.AutoMigrate(new(Session))
@@ -52,31 +57,3 @@ func (s *DB) Sessions() (Sessions, error) {
 	tx := s.db.Find(&res)
 	return res, tx.Error
 }
-
-func (s *DB) ClosePendingSessionsInHistory(chargeMeterTotal float64) error {
-	var res Sessions
-	if tx := s.db.Find(&res, map[string]interface{}{"finished": "0001-01-01 00:00:00+00:00", "Loadpoint": s.name}); tx.Error != nil {
-		return tx.Error
-	}
-
-	for _, session := range res {
-		var nextSession Session
-
-		var tx *gorm.DB
-		if tx = s.db.Limit(1).Order("ID").Find(&nextSession, "ID > ? AND Loadpoint = ?", session.ID, s.name); tx.Error != nil {
-			return tx.Error
-		}
-
-		if tx.RowsAffected == 0 {
-			// no successor, this is the most recent session and it is open
-			session.MeterStop = &chargeMeterTotal
-		} else {
-			session.MeterStop = nextSession.MeterStart
-		}
-
-		session.ChargedEnergy = *session.MeterStop - *session.MeterStart
-		s.Persist(session)
-	}
-
-	return nil
-}