const int numAttempts = 4;
//const int correctCombination[4] = {3, 2, 5, 1};
const int correctCombination[4] = {1, 1, 1, 1};

// Variables for storing the current combination and number of attempts
int currentCombination[4];
int attempts = 0;

// Pin numbers for the components
const int potentiometerPin = A0;
const int redLedPin = 13;
const int greenLedPin = 12;
const int buzzerPin = 2;
const int buttonPin = 8;

int potentiometerValue = 0;

void setup() {
  // Initialize the serial port
  Serial.begin(9600);
  
  // Set the pin modes for the components
  pinMode(redLedPin, OUTPUT);
  pinMode(greenLedPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
  pinMode(buttonPin, INPUT);
}

void loop() {
  // Read the value of the potentiometer
  potentiometerValue = analogRead(potentiometerPin);
  Serial.println(potentiometerValue);
  // Calculate the current number based on the potentiometer value
  int currentNumber = potentiometerValue/102;
  
  // Print the current number to the serial port
  Serial.println(currentNumber);
  
  // Wait for the button to be pressed
  if (digitalRead(buttonPin) == LOW) {
    delay(500);
    // Serial.println(potentiometerValue);
    // Serial.println(currentNumber);
  
  
  // Store the current number in the combination array
  currentCombination[attempts] = currentNumber;
  
  // Increment the number of attempts
  attempts++;
    Serial.println(potentiometerValue);
    Serial.println(currentNumber);
  }
  // If all 4 numbers have been entered, check the combination
  if (attempts == 4) {
    Serial.println(potentiometerValue);
    Serial.println(currentNumber);
    // Check if the combination is correct
    bool correct = true;
    for (int i = 0; i < 4; i++) {
      if (currentCombination[i] != correctCombination[i]) {
        correct = false;
        break;
      }
    }
    
    // If the combination is correct, blink the green LED and reset the attempts
    if (currentNumber == correctCombination) {
      digitalWrite(greenLedPin, HIGH);
      delay(10);
      digitalWrite(greenLedPin, LOW);
      attempts = 0;
    }
    // If the combination is incorrect, add 1 to the number of attempts and light the red LED
    if (correct = false) {
      attempts++;
      digitalWrite(redLedPin, HIGH);
      delay(1000);
      digitalWrite(redLedPin, LOW);
    }
    
    // If the combination has been entered incorrectly 4 times, ring the buzzer and reset the attempts
    if (attempts >= numAttempts) {
      digitalWrite(buzzerPin, HIGH);
      delay(20);
      digitalWrite(buzzerPin, LOW);
      attempts = 0;
    }
  }
}