#define Led 24
#define Interruptor 34
#define Buzzer 2

#include <WiFi.h>
#include <PubSubClient.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqtt_server = "test.mosquitto.org";


WiFiClient WOKWI_client;
PubSubClient client(WOKWI_client);


void setup() {

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
 
  Serial.begin(115200);
  Serial.println("Led + Interruptor - Funcionamento");
  pinMode(Led, OUTPUT);
  pinMode(Interruptor, INPUT);
  pinMode(Buzzer, OUTPUT);
  client.setServer(mqtt_server, 1883);

}

void reconnect() {
 
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
   
    if (client.connect("WOKWI_client")) {
      Serial.println("connected");
     
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      // Wait 5 seconds before retrying
      delay(100);
    }
  }
}

void Conectado_Wifi(){
  if (WiFi.status())
  digitalWrite(2, HIGH);
  else
  digitalWrite(2, LOW);
}
void Conectado_Mosquito(){
  if (client.connected())
  digitalWrite(15, HIGH);
  else
  digitalWrite(15, LOW);
}

void loop() {
  reconnect();
  Conectado_Wifi();
  Conectado_Mosquito();
  
  if(digitalRead(Interruptor)){
    digitalWrite(Led, HIGH);
    tone(Buzzer,800);
    client.publish("TOPICO_PROVA_LIGA", "A máquina está ligada!");

    digitalWrite(Buzzer, HIGH);

  }else{
    client.publish("TOPICO_PROVA_DESLIGA", "A máquina está desligada!");
    tone(Buzzer,0);

    digitalWrite(Led, LOW);
    digitalWrite(Buzzer, LOW);

  }
  
  delay(100); 


}