package MqttService

import (
	"errors"
	"strings"
)

func PinNameFromTopic(topic string) (string,error) {
	topicComponents := strings.Split(topic, "/")
	if len(topicComponents) >= 2 {
		gpioCh := topicComponents[len(topicComponents)-2]
		return gpioCh, nil

	} else {
		return "", errors.New("invalid topic")
	}
}