const int ROTARY_ENCODER_CLK = 2;
const int ROTARY_ENCODER_DT = 3;
const int ROTARY_ENCODER_SW = 4;

int state = HIGH;

void setup() {
  pinMode(ROTARY_ENCODER_CLK, INPUT);
  pinMode(ROTARY_ENCODER_DT, INPUT);
  pinMode(ROTARY_ENCODER_SW, INPUT);

  Serial.begin(115200);
  Serial.println("DEBUG BUTTONBOX - SETUP");
}


void loop() {
  int clk = digitalRead(ROTARY_ENCODER_CLK);
  int dt = digitalRead(ROTARY_ENCODER_DT);
  int sw = digitalRead(ROTARY_ENCODER_SW);
  Serial.print("CLK: ");
  Serial.print(clk);
  Serial.print("; DT: ");
  Serial.print(dt);
  Serial.print("; SW: ");
  Serial.print(sw);
  if (state != clk) {
    state = clk;
    if (clk == LOW && dt == HIGH) {
      Serial.print("; CLOCKWISE");
    } else if (clk == LOW && dt == LOW) {
      Serial.print("; COUNTERCLOCKWISE");
    }
  }
  Serial.println();
}


//const int ROTARY_ENCODER_CLK = 4;
//const int ROTARY_ENCODER_DT = 3;

//int ROTARY_ENCODER_STATE = HIGH;


//void pollRotaryEncoder();


//void setup() {
//  pinMode(ROTARY_ENCODER_CLK, INPUT);
//  pinMode(ROTARY_ENCODER_DT, INPUT);

//  Serial.begin(115200);
//  Serial.println("DEBUG BUTTONBOX - SETUP");
//}


//void loop() {
//  while (true) {
//    pollRotaryEncoder();
//  }
//}


//void pollRotaryEncoder() {
//  int newState = digitalRead(ROTARY_ENCODER_CLK);
//  if (newState != ROTARY_ENCODER_STATE) {
//    ROTARY_ENCODER_STATE = newState;
//    int dtValue = digitalRead(ROTARY_ENCODER_DT);
//    if (newState == LOW && dtValue == HIGH) {
//      Serial.println("EVENT ROTARYENCODER CLOCKWISE");
//    } else if (newState == LOW && dtValue == LOW) {
//      Serial.println("EVENT ROTARYENCODER COUNTERCLOCKWISE");
//    }
//  }
//}