const int btnPin = 9; // GPIO #3 - Push button on encoder
const int DT = A3;    // GPIO #4 - DT on encoder (Output B)
const int CLK = A2;   // GPIO #5 - CLK on encoder (Output A)

int encoderPos = 0;
int lastEncoderPos = 0;

int buttonState = HIGH;
int lastButtonState = HIGH;

unsigned long buttonPressTime = 0;
unsigned long buttonReleaseTime = 0;
unsigned long lastDebounceTime = 0;

int buttonLongPressThreshold = 1000; // 500 milliseconds for a long press
int doublePressThreshold = 500;     // 300 milliseconds for a double press

void setup() {
  Serial.begin(9600);
  pinMode(btnPin, INPUT_PULLUP);
  pinMode(DT, INPUT_PULLUP);
  pinMode(CLK, INPUT_PULLUP);
}

void loop() {
  int reading = digitalRead(btnPin);

  if (reading != lastButtonState) {
    lastDebounceTime = millis();
  }

  if ((millis() - lastDebounceTime) > 50) {
    if (reading != buttonState) {
      buttonState = reading;

      if (buttonState == LOW) {
        buttonPressTime = millis();
      } else {
        buttonReleaseTime = millis();
        unsigned long buttonPressDuration = buttonReleaseTime - buttonPressTime;

        if (buttonPressDuration < buttonLongPressThreshold) {
          if (buttonPressDuration < doublePressThreshold) {
            // Quick press
            Serial.println("Quick push");
          } else {
            // Slow press
            Serial.println("Slow push");
          }
        } else {
          // Long press
          Serial.println("Long push");
        }
      }
    }
  }

  lastButtonState = reading;

  int clkState = digitalRead(CLK);
  int dtState = digitalRead(DT);

  if (clkState != dtState) {
    if (clkState == HIGH) {
      encoderPos++;
    } else {
      encoderPos--;
    }

    if (encoderPos != lastEncoderPos) {
      Serial.println(encoderPos);
      lastEncoderPos = encoderPos;
    }
  }

  delay(50); // Adjust delay as needed
}