#include <Adafruit_NeoPixel.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

#define LED_PIN 6
#define LED_COUNT 24
#define BUTTON_UP 2
#define BUTTON_DOWN 3
#define PHOTO_PIN A0
#define SLIDER_PIN 4

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);
LiquidCrystal_I2C lcd(0x27, 16, 2);

int mode = 1;
int modesCount = 3;
int lastButtonStateUp = HIGH;
int lastButtonStateDown = HIGH;
bool energySaving = false;
bool ledsOn = true;
int lightThreshold = 500;

// Прототипы функций
void updateDisplay();
void checkButtons();
void checkEnergySaving();
void randomPattern();
void clearMatrix();

void setup() {
  pinMode(BUTTON_UP, INPUT_PULLUP);
  pinMode(BUTTON_DOWN, INPUT_PULLUP);
  pinMode(SLIDER_PIN, INPUT_PULLUP);
  pinMode(PHOTO_PIN, INPUT);
  
  strip.begin();
  strip.show();
  strip.setBrightness(50);
  
  lcd.init();
  lcd.backlight();
  updateDisplay();
  randomSeed(analogRead(A5)); // Инициализация генератора случайных чисел
}

void loop() {
  checkButtons();
  checkEnergySaving();
  
  if(ledsOn) {
    switch(mode) {
      case 1: randomPattern(); break;
      case 2: randomPattern(); break;
      case 3: randomPattern(); break;
    }
    delay(500); // Задержка между сменой изображений
  } else {
    clearMatrix();
  }
}

void updateDisplay() {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Mode: ");
  lcd.print(mode);
  
  lcd.setCursor(0, 1);
  lcd.print("Random Patterns");
}

void checkButtons() {
  int currentStateUp = digitalRead(BUTTON_UP);
  int currentStateDown = digitalRead(BUTTON_DOWN);
  
  if(currentStateUp == LOW && lastButtonStateUp == HIGH) {
    mode = (mode % modesCount) + 1;
    updateDisplay();
    delay(200);
  }
  
  if(currentStateDown == LOW && lastButtonStateDown == HIGH) {
    mode = (mode == 1) ? modesCount : mode - 1;
    updateDisplay();
    delay(200);
  }
  
  lastButtonStateUp = currentStateUp;
  lastButtonStateDown = currentStateDown;
}

void checkEnergySaving() {
  energySaving = !digitalRead(SLIDER_PIN);
  
  if(energySaving) {
    int lightLevel = analogRead(PHOTO_PIN);
    ledsOn = (lightLevel < lightThreshold);
  } else {
    ledsOn = true;
  }
}

void randomPattern() {
  clearMatrix();
  
  // Генерируем случайное изображение
  for(int i = 0; i < LED_COUNT; i++) {
    if(random(0, 2) == 1) { // 50% вероятность включения светодиода
      strip.setPixelColor(i, strip.Color(
        random(0, 256),  // Красный
        random(0, 256),  // Зеленый
        random(0, 256)   // Синий
      ));
    }
  }
  strip.show();
}

void clearMatrix() {
  for(int i = 0; i < LED_COUNT; i++) {
    strip.setPixelColor(i, strip.Color(0, 0, 0));
  }
  strip.show();
}