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

RTC_DS1307 rtc;
const int ledMerah = 3;
const int ledBiru = 4;
const int ledKuning = 5;

void setup()
{

Serial.begin(9600);
Wire.begin();
rtc.begin();
pinMode (ledMerah, OUTPUT);
pinMode (ledBiru, OUTPUT);
pinMode (ledKuning, OUTPUT);

//pengaturan coundown 1 menit
setCountdownTimerHour1 (60);
setCountdownTimerMinute (3);

}

void loop()
{
  static DateTime countdownEndHour;
  static bool timerSetHour = false;

  static DateTime countdownEndMinute;
  static bool timerSetMinute = false;

  if (!timerSetHour)
  {
    countdownEndHour = rtc.now() + TimeSpan (0,0,1,0);
    timerSetHour = true;
    
  }

  DateTime now = rtc.now();

  if (now < countdownEndHour ) 
  {
    TimeSpan remaining = countdownEndHour - now;
     Serial.print ("Time Remaining : ");
    Serial.print (remaining.hours(), DEC);
    Serial.print (" hour ");
    Serial.print (remaining.minutes(), DEC);
    Serial.print(" minutes, ");
    Serial.print(remaining.seconds(),DEC);
    Serial.println(" seconds");
  }

  else {
    Serial.println (" Jam Sudah selesai");

    if (!timerSetMinute)
    {
      countdownEndMinute = rtc.now() + TimeSpan (0,0,3,0);
      timerSetMinute = true;
    }

    if (now < countdownEndMinute)
    {  
    TimeSpan remaining = countdownEndMinute - now;
    Serial.print ("Time Remaining : ");
    Serial.print (remaining.minutes(), DEC);
    Serial.print(" minutes, ");
    Serial.print(remaining.seconds(),DEC);
    Serial.println(" seconds");
    }

     else {
    Serial.println ("  Menit Sudah selesai");
  }
  }

  delay(1000);
}



void setCountdownTimerHour1 (int second)
{
  DateTime now = rtc.now();
  DateTime countdownEndHour = now + TimeSpan (0,0,0, second);
}

void setCountdownTimerMinute (int minute)
{
  DateTime now = rtc.now();
  DateTime countdownEndMinute = now + TimeSpan (0,0,0, minute);
}