#include <SevSeg.h>

SevSeg sevseg;

const int photoResistorPin = A0;
const int potentiometerPin = A1;
const int buttonPin1 = 2;
const int buttonPin2 = 3;
const int buzzerPin = 4;
const int rgbRedPin = 9;
const int rgbGreenPin = 10;
const int rgbBluePin = 11;

int displayMode = 0; // 0 - Light level, 1 - Potentiometer level
bool buzzerState = false;

void setup() {
  pinMode(photoResistorPin, INPUT);
  pinMode(potentiometerPin, INPUT);
  pinMode(buttonPin1, INPUT_PULLUP);
  pinMode(buttonPin2, INPUT_PULLUP);
  pinMode(buzzerPin, OUTPUT);
  pinMode(rgbRedPin, OUTPUT);
  pinMode(rgbGreenPin, OUTPUT);
  pinMode(rgbBluePin, OUTPUT);

  byte numDigits = 4;
  byte digitPins[] = {5, 6, 7, 8};
  byte segmentPins[] = {9, 10, 11, 12, 13, A2, A3, A4};
  bool resistorsOnSegments = false;
  byte hardwareConfig = COMMON_ANODE;
  bool updateWithDelays = false;
  bool leadingZeros = false;
  bool disableDecPoint = false;
  
  sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments, updateWithDelays, leadingZeros, disableDecPoint);
  sevseg.setBrightness(90); // Initial brightness
}

void loop() {
  int lightLevel = analogRead(photoResistorPin);
  int potLevel = analogRead(potentiometerPin);
  int brightness = map(potLevel, 0, 1023, 0, 100);
   if (digitalRead(buttonPin1) == LOW) {
    displayMode = (displayMode + 1) % 2;
    delay(200); // Debounce delay
  }

  if (digitalRead(buttonPin2) == LOW) {
    buzzerState = !buzzerState;
    delay(200); // Debounce delay
  }



  // RGB LED control based on light level
  int redValue = map(lightLevel, 0, 1023, 0, 255);
  int greenValue = 255 - redValue;
  int blueValue = map(lightLevel, 0, 1023, 255, 0);
  
  analogWrite(rgbRedPin, redValue);
  analogWrite(rgbGreenPin, greenValue);
  analogWrite(rgbBluePin, blueValue);

  // Buzzer control
  if (buzzerState) {
    if (lightLevel > 800 || potLevel > 900 || potLevel < 100) {
      digitalWrite(buzzerPin, HIGH);
      tone(buzzerPin, 300, 300);
    } else {
      tone(buzzerPin, 400, 300);
      digitalWrite(buzzerPin, LOW);

    }
  } else {
    tone(buzzerPin, 500, 300);
    digitalWrite(buzzerPin, LOW);
  }

 static unsigned long timer = millis();
  static int deciSeconds = 0;

  if (millis() - timer >= 100) {
    timer += 100;
    deciSeconds++;

    if (deciSeconds == 10000) {
      deciSeconds=0;
    }
    sevseg.setNumber(deciSeconds, 1);
  }

  sevseg.refreshDisplay(); 
}