#include <Wire.h>
#include <Adafruit_NeoPixel.h>
#include <RTClib.h>
#include <LiquidCrystal_I2C.h>
#include <DHT22.h>

#define BUTTON       14
#define PIN_NEOP     23
#define NUM_PIX      8
#define DHT_PIN      19

#define RTC_ADDRESS  0x68  // Dirección del RTC DS3231
#define LCD_ADDRESS  0x27  // Dirección del LCD I2C

Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_PIX, PIN_NEOP, NEO_GRB + NEO_KHZ800);
RTC_DS3231 rtc;
LiquidCrystal_I2C lcd(LCD_ADDRESS, 16, 2);
DHT22 dht(DHT_PIN);

int buttonState = HIGH;
int lastButtonState = HIGH;
unsigned long lastDebounceTime = 0;
unsigned long debounceDelay = 50;

int brightness = 255;
int buttonPressCount = 0;

void setup() {
  pinMode(BUTTON, INPUT_PULLUP);
  strip.begin();
  strip.show();
  Wire.begin(); // SDA en D2, SCL en D1
  rtc.begin();
  lcd.begin(16, 2);

  //setDateTime(2023, 12, 21, 22, 49, 0);  // Establece la fecha y hora a 1 de enero de 2023 a las 12:00:00

}

void loop() {
  updateNeopixel();
  updateRTC();
}

void updateNeopixel() {
  int reading = digitalRead(BUTTON);

  if (reading != lastButtonState) {
    lastDebounceTime = millis();
  }

  if ((millis() - lastDebounceTime) > debounceDelay) {
    if (reading != buttonState) {
      buttonState = reading;

      if (buttonState == LOW) {
        buttonPressCount++;

        if (buttonPressCount == 1) {
          brightness -= 85;
        } else if (buttonPressCount == 2) {
          brightness -= 85;
        } else if (buttonPressCount == 3) {
          brightness -= 85;
        } else if (buttonPressCount == 4) {
          brightness = 0;
          buttonPressCount = 0;  // Reinicia el contador al apagar la tira
        }

        if (brightness < 0) {
          brightness = 255;
        }

        for (int i = 0; i < strip.numPixels(); i++) {
          strip.setPixelColor(i, strip.Color(brightness, brightness, brightness));
        }

        strip.show();
      }
    }
  }

  lastButtonState = reading;
}

void updateRTC() {
  static unsigned long lastUpdateTime = 0;
  unsigned long currentTime = millis();

  // Actualizar cada segundo
  if (currentTime - lastUpdateTime >= 1000) {
    lastUpdateTime = currentTime;

    DateTime now = rtc.now();
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("F:");
    lcd.print(now.day(), DEC);
    lcd.print('/');
    lcd.print(now.month(), DEC);
    lcd.print('/');
    lcd.print(now.year(), DEC);

    lcd.setCursor(0, 1);
    lcd.print("H:");
    lcd.print(now.hour(), DEC);
    lcd.print(':');
    lcd.print(now.minute(), DEC);
    lcd.print(':');
    lcd.print(now.second(), DEC);
  }
}

void setDateTime(int year, int month, int day, int hour, int minute, int second) {
  DateTime dt(year, month, day, hour, minute, second);
  rtc.adjust(dt);
}