// Define LED pins for Row 1 and Row 2
const int ledRow1[] = {2, 3, 4, 5, 6, 7, 8};
const int ledRow2[] = {9, 10, 11, 12, 13, A0, A1};

// Define button pins
const int buttonRow1 = A2;
const int buttonRow2 = A3;

// Define toggle switch pins
const int toggleSwitch1 = A4;
const int toggleSwitch2 = A5;
const int toggleSwitch3 = A6;

// Variables to track the current LED position
int currentLedRow1 = 0;
int currentLedRow2 = 0;

void setup() {
  // Initialize LED pins as outputs
  for (int i = 0; i < 7; i++) {
    pinMode(ledRow1[i], OUTPUT);
    pinMode(ledRow2[i], OUTPUT);
  }
  
  // Initialize button pins as inputs with pullup resistors
  pinMode(buttonRow1, INPUT_PULLUP);
  pinMode(buttonRow2, INPUT_PULLUP);

  // Initialize toggle switch pins as inputs
  pinMode(toggleSwitch1, INPUT);
  pinMode(toggleSwitch2, INPUT);
  pinMode(toggleSwitch3, INPUT);
  Serial.begin(9600);

  // Initialize LEDs
  updateLeds();
}

void loop() {
  // Check button for Row 1
  if (digitalRead(buttonRow1) == LOW) {
    delay(200); // Debounce delay
    currentLedRow1 = (currentLedRow1 + 1) % 7;
    updateLeds();
    while(digitalRead(buttonRow1) == LOW); // Wait for button release
  }
  
  // Check button for Row 2
  if (digitalRead(buttonRow2) == LOW) {
    delay(200); // Debounce delay
    
    if (digitalRead(toggleSwitch1) == HIGH) {
      // State 1: No movement
    } 
    else if (digitalRead(toggleSwitch2) == HIGH) {
      // State 2: Move by one LED
      currentLedRow2 = (currentLedRow2 + 1) % 7;
    } 
    else if (digitalRead(toggleSwitch3) == HIGH) {
      // State 3: Move two LEDs ahead
      currentLedRow2 = (currentLedRow2 + 2) % 7;
    }
    
    updateLeds();
    while(digitalRead(buttonRow2) == LOW); // Wait for button release
  }
}

void updateLeds() {
  // Turn off all LEDs for both rows
  for (int i = 0; i < 7; i++) {
    digitalWrite(ledRow1[i], LOW);
    digitalWrite(ledRow2[i], LOW);
  }

  // Turn on the current LED for each row
  digitalWrite(ledRow1[currentLedRow1], HIGH);
  digitalWrite(ledRow2[currentLedRow2], HIGH);

  Serial.println(currentLedRow1);

}