#include <LiquidCrystal.h>
LiquidCrystal lcd(12,11,10,9,8,7);
int modo = 0;
int col = 5;
boolean cursor = true;
boolean unidad = false;
boolean minutoD = false;
boolean minutoU = false;
boolean vez = true;
const int pinBuzzer = 13;
//                                  //
#include <Wire.h>
#include <RTClib.h>
RTC_DS1307 rtc;
int num = 0;
int num1 = 0;
int num2 = 0;
int num3 = 0;
//                                 //
#include <IRremote.h>
#define IR_PIN 2
IRrecv sensor(IR_PIN); /*Sensor es un objeto tipo IRrecv, siempre que se le quiera
llamar, debe ser de esa manera*/

void setup() {
lcd.begin(16,2);
sensor.enableIRIn();
Wire.begin();
rtc.begin();
  if (! rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
    // following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(__DATE__, __TIME__));}
}

void loop() {
DateTime now = rtc.now();
String HoraA = String(now.hour()) + ":" + String(now.minute())+ ":" + String(now.second());
String Horaa = String(now.hour()) + ":" + String(now.minute());
String FechaA = String(now.day()) + "/" + String(now.month()) + "/" + String(now.year());
String HoraAl = String(num1) + String(num);
String Alarma = String(HoraAl) + ":" + String((num2 * 10)+ num3);
if (HoraAl >= "18"){
  HoraAl = String(((num1 * 10) + num)-12);
} //Verificar si la hora del reloj está en formato de 12 o de 24 horas//
else {
  HoraAl = String((num1 * 10) + num);
}

if (Alarma == Horaa) {
  lcd.noBlink();
  lcd.noCursor();
  lcd.clear();
  lcd.setCursor(3,0);
  lcd.print("DESPIERTA");
  modo = 0;
  tone(pinBuzzer,440);
  delay(100);

}

else {
  if(sensor.decode()) {
   switch (sensor.decodedIRData.command) {
     case 226:
      modo = ++modo;
      vez = true;
      break;

     case 194:
      modo = --modo;
      lcd.noCursor();
      break;

     case 162: 
      lcd.noDisplay();
      break;
   }
}
  sensor.resume();  
  switch (modo) {
    case 0: 
    lcd.noBlink();
    lcd.clear();
    lcd.setCursor(2,0);
    lcd.print("Hora Actual:");
    lcd.setCursor(4,1);
    lcd.print(HoraA);
    delay(2000);
    lcd.clear();
    lcd.setCursor(2,0);
    lcd.print("Fecha Actual:");
    lcd.setCursor(4,1);
    lcd.print(FechaA);
    delay(2000);
    break;


    case 1:
    if (num1 == 2) {
      if (num >= 5) {
        num = 4;
        num2 = 0;
        num3 = 0;
      }
    }
    if (vez == true) {
     lcd.clear();
     lcd.setCursor(1,0);
     lcd.print("Pon la alarma:");
     vez = false;}
     else {
    
    String Horas = String(num1) + String(num);
    String Minutos = String(num2) + String(num3);
    lcd.noCursor();
    lcd.noBlink();
    lcd.setCursor(5,1);
    lcd.print(Horas + ":" + Minutos);
    lcd.setCursor(col,1);
    lcd.cursor();
    lcd.blink();
    delay(500);
    if (cursor == true) {
      switch (sensor.decodedIRData.command) {
        case 144:
         sensor.resume();
         col = 6;
         cursor = false;
         unidad = true;

         break;

        case 104:
         num1 = 0;
         break;

        case 48:
         num1 = 1;
         break;

        case 24:
         num1 = 2;
         break;

        case 168:
         lcd.noBlink();
         lcd.noCursor();
         break;

        case 152:
         col = 8;
         cursor = false;
         minutoD = true;
         break;
         }
    }
  else {
    if (unidad == true) {
      switch (sensor.decodedIRData.command) {
        case 224:
         col = 5;
         cursor = true;
         unidad = false;
         break;
        
        case 104:
         num = 0;
         break;

        case 48:
         num = 1;
         break;

        case 24:
         num = 2;
         break;

        case 122:
         num = 3;
         break;

        case 16:
         num = 4;
         break;

        case 56:
         num = 5;
         break;

        case 90:
         num = 6;
         break;

        case 66:
         num = 7;
         break;

        case 74:
         num = 8;
         break;

        case 82:
         num = 9;
         break;

        case 152:
         col = 8;
         unidad = false;
         minutoD = true;
         break;

         }
    }
    else {
          if (minutoD == true) {
      switch (sensor.decodedIRData.command) {
        case 144:
         col = 9;
         minutoU = true;
         minutoD = false;
         break;
        
        case 104:
         num2 = 0;
         break;

        case 48:
         num2 = 1;
         break;

        case 24:
         num2 = 2;
         break;

        case 122:
         num2 = 3;
         break;

        case 16:
         num2 = 4;
         break;

        case 56:
         num2 = 5;
         break;

        case 2:
         col = 5;
         minutoD = false;
         cursor = true;
         break;

         }
    }
    else {
      if (minutoU == true){
        switch (sensor.decodedIRData.command) {
        case 224:
         col = 8;
         minutoD = true;
         minutoU = false;
         break;
        
        case 104:
         num3 = 0;
         break;

        case 48:
         num3 = 1;
         break;

        case 24:
         num3 = 2;
         break;

        case 122:
         num3 = 3;
         break;

        case 16:
         num3 = 4;
         break;

        case 56:
         num3 = 5;
         break;

        case 90:
         num3 = 6;
         break;

        case 66:
         num3 = 7;
         break;

        case 74:
         num3 = 8;
         break;

        case 82:
         num3 = 9;
         break;

        case 2:
         col = 5;
         minutoU = false;
         cursor = true;
         break;

         }
      }
    }

    }
  }
}
  break;
}

}
}