if err != nil {
				return nil, err
			}
			targets = append(targets, t)
		}

	case config.NotifyMQTTSubSys:
		mqttTargets, err := GetNotifyMQTT(cfg[config.NotifyMQTTSubSys], transport.TLSClientConfig.RootCAs)
		if err != nil {
			return nil, err
		}
		for id, args := range mqttTargets {
			if !args.Enable {
				continue
			}
			args.RootCAs = transport.TLSClientConfig.RootCAs

		}
	}

	return nil
}

// MQTTTarget - MQTT target.
type MQTTTarget struct {
	initOnce once.Init

	id         event.TargetID
	args       MQTTArgs
	client     mqtt.Client
	store      store.Store[event.Event]
	quitCh     chan struct{}
	loggerOnce logger.LogOnce
}

// ID - returns target ID.
func (target *MQTTTarget) ID() event.TargetID {
	return target.id
}