#include <Servo.h>  // Included as allowed package (not used in this example)

const int led1Pin = 2;    // PWM pin for led1
const int led2Pin = 3;    // PWM pin for led2
const int led3Pin = 4;    // PWM pin for led3

// RGB LED rgb1 pins
const int rgb1RedPin   = 5;  // red channel
const int rgb1GreenPin = 6;  // green channel
const int rgb1BluePin  = 7;  // blue channel

// RGB LED rgb2 pins
const int rgb2RedPin   = 8;  // red channel
const int rgb2GreenPin = 9;  // green channel
const int rgb2BluePin  = 10; // blue channel

// Potentiometer analog input pins
const int pot1Pin = A0;
const int pot2Pin = A1;

void setup() {
  // Setup LED output pins
  pinMode(led1Pin, OUTPUT);
  pinMode(led2Pin, OUTPUT);
  pinMode(led3Pin, OUTPUT);
  
  pinMode(rgb1RedPin, OUTPUT);
  pinMode(rgb1GreenPin, OUTPUT);
  pinMode(rgb1BluePin, OUTPUT);
  
  pinMode(rgb2RedPin, OUTPUT);
  pinMode(rgb2GreenPin, OUTPUT);
  pinMode(rgb2BluePin, OUTPUT);
  
  // No special initialization needed for analog inputs
}

void loop() {
  // Read potentiometer values (0-1023)
  int pot1Value = analogRead(pot1Pin);
  int pot2Value = analogRead(pot2Pin);
  
  // Map potentiometer values to LED brightness 0-255
  int led1Brightness = map(pot1Value, 0, 1023, 0, 255);
  int led2Brightness = map(pot2Value, 0, 1023, 0, 255);
  
  // Write PWM brightness values to led1 and led2
  analogWrite(led1Pin, led1Brightness);
  analogWrite(led2Pin, led2Brightness);
  
  // For led3, if both potentiometers are at maximum, turn on LED (full brightness), else off.
  if(pot1Value == 1023 && pot2Value == 1023) {
    analogWrite(led3Pin, 255);
  } else {
    analogWrite(led3Pin, 0);
  }
  
  // Set RGB LED color gradient.
  // The red component is controlled by pot1 and the green component by pot2.
  // Normally, blue is off, but if both potentiometers are at maximum, display white (all channels 255).
  int redValue   = map(pot1Value, 0, 1023, 0, 255);
  int greenValue = map(pot2Value, 0, 1023, 0, 255);
  int blueValue  = 0;
  
  // If both are at maximum, make blue = 255 so that the color becomes white.
  if(pot1Value == 1023 && pot2Value == 1023) {
    blueValue = 255;
  }
  
  // Write the same color to both rgb1 and rgb2
  analogWrite(rgb1RedPin, redValue);
  analogWrite(rgb1GreenPin, greenValue);
  analogWrite(rgb1BluePin, blueValue);
  
  analogWrite(rgb2RedPin, redValue);
  analogWrite(rgb2GreenPin, greenValue);
  analogWrite(rgb2BluePin, blueValue);
  
  // Loop continuously; a short delay can be added for stability
  delay(10);
}