#define redPin     13
#define greenPin   12
#define bluePin    11
#define colorBtn   6
#define durationBtn 7

bool colors[][3] = {
  {1,1,1}, {1,0,0}, {0,1,0}, {0,0,1},  // white, red, green, blue
  {0,1,1}, {1,1,0}, {1,0,1}, {0,0,0}   // cyan, yellow, magenta, black
};

char* colorNames[] = {
  "white", "red", "green", "blue",
  "cyan", "yellow", "magenta", "black"
};

int delays[] = {1000, 800, 600, 400, 200};

volatile int colorIndex = 0;
volatile int delayIndex = 0;

unsigned long lastColorPress = 0;
unsigned long lastDurationPress = 0;
const unsigned long debounceDelay = 200;

unsigned long previousMillis = 0;
bool ledState = false;

void setup() {
  Serial.begin(9600);

  // Set RGB pins as output
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);

  // Set button pins as input with pull-up
  pinMode(colorBtn, INPUT_PULLUP);
  pinMode(durationBtn, INPUT_PULLUP);

  // Attach interrupts
  attachInterrupt(digitalPinToInterrupt(colorBtn), changeColor, FALLING);
  attachInterrupt(digitalPinToInterrupt(durationBtn), changeDuration, FALLING);

  Serial.print("Color: ");
  Serial.println(colorNames[colorIndex]);
  Serial.print("Duration: ");
  Serial.print(delays[delayIndex]);
  Serial.println(" ms");
}

void loop() {
  unsigned long currentMillis = millis();

  if (currentMillis - previousMillis >= delays[delayIndex]) {
    previousMillis = currentMillis;
    ledState = !ledState;
    applyColor(ledState ? colorIndex : 7); // 7 = black (off)
  }
}

void applyColor(int index) {
  digitalWrite(redPin, colors[index][0]);
  digitalWrite(greenPin, colors[index][1]);
  digitalWrite(bluePin, colors[index][2]);
}

void changeColor() {
  unsigned long now = millis();
  if (now - lastColorPress > debounceDelay) {
    colorIndex = (colorIndex + 1) % 7; // skip black
    Serial.print("Color: ");
    Serial.println(colorNames[colorIndex]);
    lastColorPress = now;
  }
}

void changeDuration() {
  unsigned long now = millis();
  if (now - lastDurationPress > debounceDelay) {
    delayIndex = (delayIndex + 1) % 5;
    Serial.print("Duration: ");
    Serial.print(delays[delayIndex]);
    Serial.println(" ms");
    lastDurationPress = now;
  }
}