// Define pins for LEDs
const int led1Pin = 8;
const int led2Pin = 9;

// Define pins for buttons
const int btn1Pin = 2;
const int btn2Pin = 3;
const int btn3Pin = 4;

// Variables to store LED states
bool led1State = false;
bool led2State = false;

// Variables for debouncing
unsigned long lastDebounceTime1 = 0;
unsigned long lastDebounceTime2 = 0;
unsigned long lastDebounceTime3 = 0;
unsigned long debounceDelay = 50; // 50 ms debounce time

// Variables to handle the 2-second stable state for each LED and reset
unsigned long lastLed1ToggleTime = 0;
unsigned long lastLed2ToggleTime = 0;
unsigned long lastResetTime = 0;
unsigned long stableStateDelay = 2000; // 2 seconds

// Previous button states
int lastBtn1State = HIGH;
int lastBtn2State = HIGH;
int lastBtn3State = HIGH;

void setup() {
  // Initialize LED pins as outputs
  pinMode(led1Pin, OUTPUT);
  pinMode(led2Pin, OUTPUT);
  
  // Initialize button pins as inputs with pull-up resistors
  pinMode(btn1Pin, INPUT_PULLUP);
  pinMode(btn2Pin, INPUT_PULLUP);
  pinMode(btn3Pin, INPUT_PULLUP);
  
  // Initially, both LEDs are off
  digitalWrite(led1Pin, LOW);
  digitalWrite(led2Pin, LOW);
}

void loop() {
  // Read the current state of the buttons
  int btn1State = digitalRead(btn1Pin);
  int btn2State = digitalRead(btn2Pin);
  int btn3State = digitalRead(btn3Pin);
  
  // Debouncing and action for Button 1
  if (btn1State != lastBtn1State) {
    lastDebounceTime1 = millis();
  }
  
  if ((millis() - lastDebounceTime1) > debounceDelay) {
    if (btn1State == LOW && lastBtn1State == HIGH) { // Button pressed (LOW due to INPUT_PULLUP)
      // Only toggle if enough time has passed since the last toggle of LED 1
      // and enough time has passed since the last reset
      if (millis() - lastLed1ToggleTime > stableStateDelay && millis() - lastResetTime > stableStateDelay) {
        led1State = !led1State;
        digitalWrite(led1Pin, led1State);
        lastLed1ToggleTime = millis();
      }
    }
  }
  
  // Debouncing and action for Button 2
  if (btn2State != lastBtn2State) {
    lastDebounceTime2 = millis();
  }
  
  if ((millis() - lastDebounceTime2) > debounceDelay) {
    if (btn2State == LOW && lastBtn2State == HIGH) { // Button pressed
      // Only toggle if enough time has passed since the last toggle of LED 2
      // and enough time has passed since the last reset
      if (millis() - lastLed2ToggleTime > stableStateDelay && millis() - lastResetTime > stableStateDelay) {
        led2State = !led2State;
        digitalWrite(led2Pin, led2State);
        lastLed2ToggleTime = millis();
      }
    }
  }
  
  // Debouncing and action for Button 3
  if (btn3State != lastBtn3State) {
    lastDebounceTime3 = millis();
  }
  
  if ((millis() - lastDebounceTime3) > debounceDelay) {
    if (btn3State == LOW && lastBtn3State == HIGH) { // Button pressed
      // Reset both LEDs to off (regardless of their stable state)
      led1State = false;
      led2State = false;
      digitalWrite(led1Pin, LOW);
      digitalWrite(led2Pin, LOW);
      lastResetTime = millis();
    }
  }
  
  // Update the last button states
  lastBtn1State = btn1State;
  lastBtn2State = btn2State;
  lastBtn3State = btn3State;
}