/**
   ESP32 + DHT22 Example for Wokwi
   
   https://wokwi.com/arduino/projects/322410731508073042
*/

#define button A4       //Push button on D3
#define redLED 10       //red LED on D34
#define blueLED 9      //green LED on D6
#define yellowLED 8     //yellow LED on D7

//-------------------------------------------------------
int state = 0;          //integer to hold current state
int old = 0;            //integer to hold last state
int buttonPoll = 0;     //integrer to hold button state
//-------------------------------------------------------

void setup(){
  Serial.begin(115200);
  
  pinMode(button, INPUT);        //button set as input
  pinMode(redLED, OUTPUT);        //LEDs set as outputs
  pinMode(blueLED, OUTPUT);
  pinMode(yellowLED, OUTPUT);

  digitalWrite(redLED, LOW);      //set initial state as off
  digitalWrite(blueLED, LOW);    //set initial state as off
  digitalWrite(yellowLED, LOW);   //set initial state as off
}

void loop(){
  
    buttonPoll = digitalRead(button);
  if(buttonPoll == 1){
    delay(50);
    buttonPoll = digitalRead(button);
    if(buttonPoll == 0){
      state = old + 1;
      Serial.println("button pushed");
      delay(1000);
    }
  }
  else{
    delay(100);
  }
  switch(state){
    case 1:
      Serial.println("Case 1");
      old = state;
      break;
    
    case 2:
      Serial.println("Case 2");
      old = state;
      break;

    case 3:
      Serial.println("Case 3");
      old = state;
      break;

    default:
      Serial.println("Default");
      old = 0;
      break;
  }
}