#include <JeeLib.h>
    //#include <Narcoleptic.h>
    #include "Wire.h"

    ISR(WDT_vect) { Sleepy::watchdogEvent(); }
    /// Karta SD ////
    #include <SD.h>
    #define KARTAPIN 6
    File myFile;

    /// Czujnik wilgotności i temperatury powietrza ////
    #include <dht.h>
    dht DHT22;
    #define DHT22PIN 7

    /// Czujnik światła ///
    #include <BH1750.h>
    BH1750 czujnikSwiatla;

    /// Czujnik wilgotności gleby ///
    int sensor_A0 = A0;    // podłączenie od A0 na czujniku do A0 na Arduino
    int sensor_D0 = 2;     // podłączenie od D0 na czujniku do pinu 2 na Arduino
    int wartosc_A0;

    /// sonda temperatury ///
    #include <OneWire.h>
    #include <DallasTemperature.h>
    #define sondaPIN 16
    float tmp=0;
    OneWire oneWire(sondaPIN);
    DallasTemperature sensors(&oneWire);


    /// RTC ///
    #define DS3231_I2C_ADDRESS 0x68
    byte second, minute, hour, dayOfWeek,dayOfMonth, month, year;

    char combinedArray[13];
    byte lastday=99;
    //////////////////////////////////////////////////////////////////////////////////
    void setup()
    {
           //Serial.begin(9600);
           Wire.begin();
           czujnikSwiatla.begin();
           sensors.begin();

           pinMode(KARTAPIN, OUTPUT);
           pinMode(10, INPUT);

           if (!SD.begin(KARTAPIN))
           {
                Serial.print("Error SD");
                return;
           }

          delay(3000);
    }

    void loop()
    {

            readDS3231time(&second, &minute, &hour,&dayOfWeek, &dayOfMonth, &month, &year);
           char msc[3];
           char dzien[3];
           char rok[5];

           snprintf(msc, 3, "%d", month); //char
           snprintf(dzien, 3, "%d", dayOfMonth);
           snprintf(rok, 5, "%d", year);


             combinedArray[0]=dzien[0];
             combinedArray[1]=dzien[1];

           combinedArray[2]='_';

           if(month<10)
           {
             combinedArray[3]='0';
             combinedArray[4]=msc[0];
           }
           else
           {
             combinedArray[3]=msc[0];
             combinedArray[4]=msc[1];
           }

           combinedArray[5]='_';
           combinedArray[6]=rok[0];
           combinedArray[7]=rok[1];
           combinedArray[8]='.';
           combinedArray[9]='c';
           combinedArray[10]='s';
           combinedArray[11]='v';

            myFile = SD.open(combinedArray,FILE_WRITE);
            if(dayOfWeek!=lastday)
            myFile.println("data;godzina;wilgotnosc powietrza [%];temperatura powietrza [C];wilgotnosc gleby [%];wartosc A0;temperatura gleby [C];natezenie swiatla [lux]");
            lastday=dayOfWeek;
            data();
            delay(10);
            czujDHT22();
            czujWILGOT();
            sondaTEM();
            czujSWIATLA();
            myFile.close();
            for(int i=0;i<30;i++){Sleepy::loseSomeTime(60000);}

    }


    //////////////////////////////// RTC////////////////////////////////////////
    String readDS3231time(byte *second,
    byte *minute,
    byte *hour,
    byte *dayOfWeek,
    byte *dayOfMonth,
    byte *month,
    byte *year)
    {
          Wire.beginTransmission(DS3231_I2C_ADDRESS);
          Wire.write(0); // set DS3231 register pointer to 00h
          Wire.endTransmission();
          Wire.requestFrom(DS3231_I2C_ADDRESS, 7);
          // request seven bytes of data from DS3231 starting from register 00h
          *second = bcdToDec(Wire.read() & 0x7f);
          *minute = bcdToDec(Wire.read());
          *hour = bcdToDec(Wire.read() & 0x3f);
          *dayOfWeek = bcdToDec(Wire.read());
          *dayOfMonth = bcdToDec(Wire.read());
          *month = bcdToDec(Wire.read());
          *year = bcdToDec(Wire.read());
    }


    void data()
    {
        myFile.print(year, DEC);
        myFile.print("/");
        if(month<10)  myFile.print("0");
        myFile.print(month, DEC);
        myFile.print("/");
        myFile.print(dayOfMonth, DEC);
        myFile.print("  ");
        myFile.print(";");

        myFile.print(hour, DEC);
        myFile.print(":");

        myFile.print(minute, DEC);
        myFile.print(":");

        myFile.print(second, DEC);
        myFile.print(" ");

        myFile.print(";");
    }

    byte decToBcd(byte val)
    {
          return( (val/10*16) + (val%10) );
    }
    byte bcdToDec(byte val)
    {
          return( (val/16*10) + (val%16) );
    }

    void setDS3231time(byte second, byte minute, byte hour, byte dayOfWeek , byte
    dayOfMonth, byte month, byte year)
    {
      // sets time and date data to DS3231
          Wire.beginTransmission(DS3231_I2C_ADDRESS);
          Wire.write(0); // set next input to start at the seconds register
          Wire.write(decToBcd(second)); // set seconds
          Wire.write(decToBcd(minute)); // set minutes
          Wire.write(decToBcd(hour)); // set hours
          Wire.write(decToBcd(dayOfWeek)); // set day of week (1=Sunday, 7=Saturday)
          Wire.write(decToBcd(dayOfMonth)); // set date (1 to 31)
          Wire.write(decToBcd(month)); // set month
          Wire.write(decToBcd(year)); // set year (0 to 99)
          Wire.endTransmission();
    }

    ////////////////////////// Czujnik wilgotności i temperatury powietrza //////////////////////////////////
    void czujDHT22()
    {
        int chk = DHT22.read(DHT22PIN);         //sprawdzenie stanu sensora, a następnie wyświetlenie komunikatu na monitorze szeregowym
        switch (chk)
        {
            case DHTLIB_OK:
                break;
            case DHTLIB_ERROR_CHECKSUM:
            myFile.println(" ");
                myFile.println("Błąd sumy kontrolnej");
                myFile.println(" ");
                break;
            case DHTLIB_ERROR_TIMEOUT:
            myFile.println(" ");
                myFile.println("Koniec czasu oczekiwania - brak odpowiedzi");
                myFile.println(" ");
                break;
            default:
            myFile.println(" ");
                myFile.println("Nieznany błąd");
                myFile.println(" ");
                break;
        }
         myFile.print((float)DHT22.humidity, 2);
         myFile.print(";");

         myFile.print((float)DHT22.temperature, 2);
         myFile.print(";");
    }

    ////////////////////////////// Czujnik wilgotności gleby /////////////////////////
    void czujWILGOT()
    {
         wartosc_A0 = analogRead(sensor_A0);      // pobranie wartości z A0
         int sensorConstrainl=constrain(wartosc_A0,300 ,1022);
         int soill = map(sensorConstrainl,300 ,1022,100,0);
         myFile.print(soill);
         myFile.print(";");

         myFile.print(wartosc_A0);
         myFile.print(";");
    }

    /////////////////////////////// Sonda temeratury /////////////////////////

    void sondaTEM()
    {
           tmp =(sensors.getTempCByIndex(0));
           myFile.print(tmp);
           sensors.requestTemperatures(); // Send the command to get temperature

           myFile.print(";");
    }

    ///////////////////////////////// Czujnik natezenia swiatla ///////////////////////////////
    void czujSWIATLA()
    {
          uint16_t lux = czujnikSwiatla.readLightLevel();    //odczytanie wartości z czujnika
          myFile.println(lux);

    }