#include <AccelStepper.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
const int directionPin = 8;
const int stepPin = 9;
const int buttonPin1 = 2; // Start/Stop button
const int buttonPin2 = 3; // Toggle direction button
const int numberOfSteps = 360;
const int pulseWidthMicros = 20;
const int millisBetweenSteps = 10;
const int potentiometerPin = A3;

bool clockwise = true; // Variable to track the direction of the stepper motor
bool motorRunning = false; // Variable to track if the motor is currently running

AccelStepper stepper(1, stepPin, directionPin); // Using interface 1 (step/direction) and assigning pins
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup() {
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
  pinMode(3, INPUT);
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(buttonPin1, INPUT); // Internal pull-up resistor enabled for button 1 pin
  pinMode(buttonPin2, INPUT); // Internal pull-up resistor enabled for button 2 pin
  pinMode(potentiometerPin, INPUT);

  stepper.setMaxSpeed(1); // Set the maximum speed in steps per second
  stepper.setAcceleration(1); // Set the acceleration in steps per second per second
}

void loop() {
  
  int a = map(analogRead(potentiometerPin),0,1023,0,100);
  stepper.setMaxSpeed(a); // Set the maximum speed in steps per second
  stepper.setAcceleration(a); // Set the acceleration in steps per second per second
  Serial.println(analogRead(potentiometerPin));
  if(digitalRead(3)) digitalWrite(LED_BUILTIN, HIGH);
  else digitalWrite(LED_BUILTIN, LOW);
  if(digitalRead(2)) digitalWrite(5, HIGH);
  else digitalWrite(5, LOW);
  // Toggle direction button
  // Serial.println(digitalRead(buttonPin1));
  // if(clockwise) Serial.println("Clockwise");
  // else Serial.println("Anticlockwise");
  if (digitalRead(buttonPin2) == HIGH) {
    // Toggle the direction of the stepper motor
    clockwise = !clockwise;
  }

  // Start/Stop button
  if (digitalRead(buttonPin1) == HIGH) {
    if (!motorRunning) {
      // Start the motor movement in the selected direction
      if (clockwise) {
        stepper.moveTo(1); // Move the motor a fixed number of steps in one direction
      } else {
        stepper.moveTo(-1); // Move the motor a fixed number of steps in the opposite direction
      }
      stepper.run(); // Start the motor movement
      motorRunning = true; // Set motorRunning to true
    } else {
      // Stop the motor movement
      stepper.stop(); // Immediately stop the motor
      stepper.setCurrentPosition(0); // Reset the current position to zero
      motorRunning = false; // Set motorRunning to false
    }
  }
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Rotation Direction:");
  lcd.setCursor(0, 1);
  lcd.print(directionPin);

  delay(1000);
}