const uint8_t redPin = 10;     // Red pin (Anode)
const uint8_t greenPin = 11;   // Green pin (Anode)
const uint8_t bluePin = 12;    // Blue pin (Anode)
const uint8_t buttonPin = 13; // Button pin

const int ledPins[] = {2, 3, 4, 5}; // Define the LED pins
const int switchPins[] = {6, 7, 8, 9}; // Define the switch pins
int currentLED = 0; // Variable to track the current LED
int currentDealer = 0;  // Initialize the current dealer
int currentPlayer = 0;  // Initialize the current player
int cardsPlayed = 1;   // Initialize the cards played

bool isButtonPressed = false;
bool oldBtnState = false;
int mode = 0;

void checkButton()  {
  int btnState = digitalRead(buttonPin);
  if (btnState != oldBtnState)  {
    oldBtnState = btnState;
    if (btnState == LOW)  {
      isButtonPressed = true;
      Serial.println("Button pressed");
    } else  {
      Serial.println("Button released");
    }
    delay(500);
  }
}

void setup() {
  for (int i = 0; i < 4; i++) {
    pinMode(ledPins[i], OUTPUT); // Set LED pins as output
    pinMode(switchPins[i], INPUT_PULLUP); // Set switch pins as input with pull-up resistors
  }
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP); // Enable internal pull-up resistor
  Serial.begin(9600); // Initialize Serial Monitor
}

void loop() {
  while (true) { // Outer loop to repeat the entire sequence
    checkButton();
    if (isButtonPressed)  {
      mode++;
      if (mode > 3) mode = 0;
      isButtonPressed = false;
    }

    // DEALER LOOP
    while (currentDealer <= 3) {
      // Print current dealer's color
      switch (currentDealer) {
        case 0:
          digitalWrite(redPin, HIGH);
          digitalWrite(greenPin, LOW);
          digitalWrite(bluePin, LOW);
          break;
        case 1:
          digitalWrite(redPin, LOW);
          digitalWrite(greenPin, LOW);
          digitalWrite(bluePin, HIGH);
          break;
        case 2:
          digitalWrite(redPin, 150);
          digitalWrite(greenPin, 150);
          digitalWrite(bluePin, LOW);
          break;
        case 3:
          digitalWrite(redPin, LOW);
          digitalWrite(greenPin, HIGH);
          digitalWrite(bluePin, LOW);
          break;
        default:
          break;
      }

      // Set currentPlayer to currentDealer + 1
      currentPlayer = currentDealer + 1;

      // currentPlayer Loop
      while (cardsPlayed <= 12) {
        for (int i = 0; i < 2; i++) { // Flash all LEDs 2 times
          for (int j = 0; j < 4; j++) {
            // Light current player's LED
            lightLED(j);
            // Wait for current player button input
            waitForButtonPress(j);
            // Turn off the LED
            turnOffLED(j);
            // Increment currentPlayer and cardsPlayed
            currentPlayer++;
            cardsPlayed++;
            Serial.println("cardsPlayed: " + String(cardsPlayed)); // Print cardsPlayed to the Serial Monitor
          }
        }
      }

      // Increment currentDealer and reset currentPlayer and cardsPlayed
      currentDealer++;
      currentPlayer = 0;
      cardsPlayed = 1;
    }
  }
}

void lightLED(int ledIndex) {
  digitalWrite(ledPins[ledIndex], HIGH); // Turn on the LED
  currentLED = ledIndex; // Update the current LED
}

void turnOffLED(int ledIndex) {
  digitalWrite(ledPins[ledIndex], LOW); // Turn off the LED
}

void waitForButtonPress(int switchIndex) {
  while (digitalRead(switchPins[switchIndex]) == HIGH) {
    // Wait for the button to be pressed
  }
  while (digitalRead(switchPins[switchIndex]) == LOW) {
    // Wait for the button to be released
  }
}