//Library
#include <RTClib.h>
#include <Wire.h>
#include <SD.h>
#include <SPI.h>

RTC_DS3231 rtc;
char dataHari[7][12] = {"Minggu", "Senin", "Selasa", "Rabu", "Kamis", "Jumat", "Sabtu"};
String hari;
int tanggal, bulan, tahun, jam, menit, detik;
float suhu;
int switchreed = 2; //Reed switch DO pin connected to pin 2 of Arduino
int switchAmount;
float rainIntensity;
int s, step;
const int chipSelect = 10; //SD card CS pin connected to pin 10 of Arduino

void setup() 
{
  Serial.begin(9600);
  Wire.begin();
  Initialize_SDcard();
  Initialize_RTC();
  pinMode(switchreed, INPUT); //Inisialisasi Reed Switch
  delay(200);
  attachInterrupt(digitalPinToInterrupt(switchreed), switchCount, FALLING);
  s = 0;
  step = 0;
}

void switchCount()
{
 switchAmount++;
 step = 1;
}

void loop() {
  first:
  if (step == 0)
 {
  s = s + 1;
  delay(1);
  goto first;
 }
   
  if (step == 1)
 {
  rainIntensity = 29.6 * switchAmount;
  Serial.print("Intensitas : ");
  Serial.print(rainIntensity);
  Serial.println(" Milimeter");
  Serial.print("Time : ");;
  Serial.print(s);
  Serial.println(" Microsecond");
  step = 2;
 }
  if (step == 2)
 {
  s = 0;
  step = 0;
 }
  DateTime now = rtc.now();
  hari    = dataHari[now.dayOfTheWeek()];
  tanggal = now.day(), DEC;
  bulan   = now.month(), DEC;
  tahun   = now.year(), DEC;
  jam     = now.hour(), DEC;
  menit   = now.minute(), DEC;
  detik   = now.second(), DEC;
  suhu    = rtc.getTemperature();
  Write_SDcard();
  delay(1000);
}

void Initialize_RTC()
{
   // Initialize the rtc object
  rtc.begin();
  //Atur Waktu
  rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  //  rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
}

void Initialize_SDcard()
{
  // see if the card is present and can be initialized:
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    // don't do anything more:
    return;
  }

   // open the file. note that only one file can be open at a time,
  // so you have to close this one before opening another.
  File dataFile = SD.open("LoggerCD.txt", FILE_WRITE);
  // if the file is available, write to it:
  if (dataFile) {
    dataFile.println("Date,Time,Intensitas"); //Write the first row of the excel file
    dataFile.close();
  }
}
void Write_SDcard()
{
    // open the file. note that only one file can be open at a time,
  // so you have to close this one before opening another.
  File dataFile = SD.open("LoggerCD.txt", FILE_WRITE);

  // if the file is available, write to it:
  if (dataFile) {
    dataFile.print(tanggal); //Store date on SD card
    dataFile.print(","); //Move to next column using a ","

    dataFile.print(jam); //Store date on SD card
    dataFile.print(","); //Move to next column using a ","

    dataFile.print(rainIntensity); //Store date on SD card
    dataFile.print(","); //Move to next column using a ","

    dataFile.println(); //End of Row move to next row
    dataFile.close(); //Close the file
  }
  else
  Serial.println("OOPS!! SD card writing failed");

}