#include <Arduino.h>

// Define the pin numbers for the rotary encoder and button
const int ENCODER_CLK_PIN = 16;  // Connect the CLK pin here
const int ENCODER_DT_PIN = 17;   // Connect the DT pin here
const int BUTTON_PIN = 18;       // Connect the button pin here

// Variables to track the encoder's state
int lastClkState = LOW;
int currentPosition = 0;
unsigned long lastDebounceTime = 0;
const unsigned long debounceDelay = 50;  // Adjust debounce delay as necessary

void setup() {
  Serial.begin(115200);  // Initialize serial communication

  // Set up the pins as input
  pinMode(ENCODER_CLK_PIN, INPUT);
  pinMode(ENCODER_DT_PIN, INPUT);
  pinMode(BUTTON_PIN, INPUT_PULLUP);  // Use internal pull-up resistor

  // Read the initial state of the CLK pin
  lastClkState = digitalRead(ENCODER_CLK_PIN);
  
  Serial.println("Encoder Test Initialized");
}

void loop() {
  // Read the current state of the CLK pin
  int currentClkState = digitalRead(ENCODER_CLK_PIN);

  // Detect changes in the CLK state
  if (currentClkState != lastClkState) {
    // Determine the direction
    int dtState = digitalRead(ENCODER_DT_PIN);
    if (dtState != currentClkState) {
      currentPosition++;  // Clockwise
      Serial.println("Rotated Clockwise");
    } else {
      currentPosition--;  // Counterclockwise
      Serial.println("Rotated Counterclockwise");
    }
    
    // Output the current position
    Serial.print("Current Position: ");
    Serial.println(currentPosition);
  }

  // Update the last CLK state
  lastClkState = currentClkState;

  // Handle button press with debounce
  int buttonState = digitalRead(BUTTON_PIN);
  if (buttonState == LOW && (millis() - lastDebounceTime) > debounceDelay) {
    lastDebounceTime = millis();  // Reset debounce timer
    Serial.println("Button Pressed!");
  }

  delay(5);  // Small delay to stabilize reading
}