class ConnectionFunctions{
struct staticMQTT {
    static var mqttClient: CocoaMQTT!
}
func configureMQTT() {
    let clientID = "Tablet"
    let host = "192.168.2.106"
    let port = UInt16(1883)
    staticMQTT.mqttClient = CocoaMQTT(clientID: clientID, host: host, port: port)
    staticMQTT.mqttClient.username = ""
    staticMQTT.mqttClient.password = ""
    staticMQTT.mqttClient.keepAlive = 60
    staticMQTT.mqttClient.delegate = self
}
func sendMessage(topic:String, message:String){
    staticMQTT.mqttClient.publish(topic, withString: message)
}

class MainViewController: UIViewController {

//MQTT Setup
var mqttfuncs=ConnectionFunctions()

override func viewDidLoad() {
    super.viewDidLoad()
    mqttfuncs.configureMQTT()
}
    @IBAction func ConnectingButton(_ sender: UIButton) {
    ConnectionFunctions.staticMQTT.mqttClient.connect()
}
@IBAction func Test(_ sender: UIButton) {
    mqttfuncs.sendMessage(topic: "Test", message: "main")
    mqttfuncs.receiveMessage(topic: "Test2")
}

class ComponentDataController: UIViewController {
let mqttfuncs = ConnectionFunctions()
    @IBAction func TestSending(_ sender: UIButton) {
    mqttfuncs.sendMessage(topic: "Test", message: "component")
}