#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
#include <Arduino.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include "RTClib.h"
#include "HX711.h"

LiquidCrystal_I2C lcd(0x27,16,2);
RTC_DS1307 rtc;

// #define ONE_WIRE_BUS 2

// Create a new instance of the oneWire class to communicate with any OneWire device:
OneWire oneWire(11);
// Pass the oneWire reference to DallasTemperature library:
DallasTemperature sensors(&oneWire);
HX711 scale;

// HX711 circuit wiring
const int LOADCELL_DOUT_PIN = 2;
const int LOADCELL_SCK_PIN = 3;

void setup()
{
  Serial.begin(9600);

  // Setup RTC
  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
    abort();
  }

  pinMode(A0, INPUT);
  lcd.init();
  lcd.backlight();
  
  // Start up the library:
  sensors.begin();
  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
  scale.set_scale(-459.542);
  //scale.set_scale(-471.497);                      // this value is obtained by calibrating the scale with known weights; see the README for details
  scale.tare();
}

void loop()
{
  lcd.clear();
  lcd.print("DAYLIGHT: ");
  lcd.setCursor (0, 1);
  DateTime now = rtc.now();
  int hour = now.hour();
  String timecheck;
  if (6 < hour && hour < 18){
    timecheck = "SUNRISE";
  } else{
    timecheck = "SUNSET";
  }
  lcd.print(timecheck);
  delay(2000);
  lcd.clear();

  int16_t i = analogRead(A0);
  String msg = i < 300 ? "WET SOIL" : i > 400 ? "DRY SOIL" : "OK";
  lcd.clear();
  lcd.print("MOISTURE: ");
  lcd.setCursor (0, 1);
  lcd.print(msg);
  delay(2000);
  lcd.clear();

  lcd.print("TEMPERATURE: ");
  lcd.setCursor (0, 1);
  // Fetch the temperature in degrees Celsius for device index:
  float tempC = sensors.getTempCByIndex(0); // the index 0 refers to the first device
  // Print the temperature in Celsius in the Serial Monitor:
  // Serial.print("Temperature: ");
  lcd.print(tempC);
  lcd.print(" C");
  delay(2000);
  lcd.clear();

  // Print Rain Status
  lcd.print("RAIN: ");
  lcd.setCursor (0, 1);
  // Serial.print("Day Status: ");
  if (scale.get_units(10) > 0.04){
    lcd.print("RAINY");
  }else{
    lcd.print("NONE");
  }
  delay(2000);
  lcd.clear();
}