#include <LiquidCrystal_I2C_Hangul.h>
#include "RTClib.h"

LiquidCrystal_I2C_Hangul lcd(0x27, 20, 4);
RTC_DS1307 rtc;

int timbre = 2;
String tipo = " horario/ 8:00-4:00 ";
String reloj = "";
String fecha = "";

char daysOfTheWeek[7][12] = {"domingo", "lunes", "Martes", "miercoles", "jueves", "viernes", "sabado"};

// Horarios para diferentes tipos (4 columnas)
/*
const String Hor[12][4] = {
  {"7:50:0", "7:50:0", "7:50:0", "7:50:0"},
  {"8:00:0", "8:00:0", "8:00:0", "8:00:0"},
  {"8:50:0", "8:40:0", "8:30:0", "8:30:0"},
  {"9:40:0", "9:20:0", "9:00:0", "9:00:0"},
  {"10:20:0", "10:00:0", "9:30:0", "9:30:0"},
  {"10:50:0", "10:30:0", "10:00:0", "10:00:0"},
  {"11:40:0", "11:10:0", "10:30:0", "10:30:0"},
  {"12:30:0", "11:50:0", "11:00:0", "11:00:0"},
  {"13:30:0", "12:30:0", "11:30:0", "11:30:0"},
  {"14:15:0", "13:30:0", "12:00:0", "12:00:0"},
  {"15:00:0", "14:20:0", "12:30:0", "12:30:0"},
  {"15:45:0", "15:10:0", "13:00:0", "13:00:0"}
};
*/
int tipoHorario = 0; 

String formatoHora(int h, int m, int s) {
  char buffer[9];
  sprintf(buffer, "%d:%d:%d", h, m, s);
  return String(buffer);
}

void sonarTimbre() {
  digitalWrite(timbre, HIGH);
  delay(5000);
  digitalWrite(timbre, LOW);
}

void setup() {
  Serial.begin(115200);
  lcd.init();
  lcd.clear();

  pinMode(timbre, OUTPUT);

  if (!rtc.begin()) {
    Serial.println("RTC no conectada");
    Serial.flush();
    abort();
  }

  lcd.setCursor(0, 0);
  lcd.print("       IPJDG");
  lcd.setCursor(0, 1);
  lcd.print(tipo);
}

void loop() {
  DateTime now = rtc.now();

  
  reloj = formatoHora(now.hour(), now.minute(), now.second());
  fecha = String(daysOfTheWeek[now.dayOfTheWeek()]) + "  " +
          String(now.day()) + "/" + String(now.month()) + "/" + String(now.year());

  
  lcd.setCursor(0, 3);
  lcd.print("Hora: " + reloj + "   "); 
  lcd.setCursor(0, 2);
  lcd.print("Fecha: " + fecha);

  Serial.println("Hora actual: " + reloj);

  
  for (int i = 0; i < 12; i++) {
    if (reloj == Hor[i][tipoHorario]) {
      sonarTimbre();
      delay(1000); 
      break;
    }
  }

  delay(1000);
}