#include "RTClib.h"
#include <LiquidCrystal_I2C.h>
#include <Servo.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 16
#define LCD_LINES   2

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

RTC_DS1307 rtc;

Servo m; // create servo object to control a serv

int hss = 7;
int uv = 8;

int pos = 0;
int r = 4;
int g = 3;
int b = 2;
int watering = 0;
int count = 1;

void setup () {
  Serial.begin(115200);

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

  // Init
  lcd.init();
  lcd.backlight();

  m.attach(10);

  pinMode(uv, OUTPUT);      // declare LED as output
  pinMode(hss, INPUT);     // declare sensor as input
  pinMode(r, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(b, OUTPUT);
}

void loop () {
  DateTime now = rtc.now();

  if(now.minute()%10 == 0 && now.second() == 0){
    digitalWrite(uv, HIGH);
  }
  else if(now.minute()%10 != 0){
    digitalWrite(uv, LOW);
  }

  if(digitalRead(hss) == HIGH){
    watering = 1;
    if(pos == 0){
      m.write(180);
      delay(500);
      pos = 180;
    }
    else if(pos == 180){
      m.write(0);
      delay(500);
      pos = 0;
    }
  }
  else if(digitalRead(hss) == LOW){
    watering = 0;
    m.write(0);
  }

  if(watering == 1){
    lcd.clear();
    digitalWrite(r, LOW);
    digitalWrite(b, HIGH);
    digitalWrite(g, HIGH);
    lcd.setCursor(0,0);
    if(count == 1){
      lcd.print("Watering.  ");
      count = 2;
    }
    else if(count == 2){
      lcd.print("Watering.. ");
      count = 3;
    }
    else if(count == 3){
      lcd.print("Watering...");
      count = 1;
    }
  }
  else if(watering == 0){
    lcd.setCursor(0,0);
    lcd.print("Current time: ");
    lcd.setCursor(0,1);
    lcd.print(now.hour(), DEC);
    lcd.print(':');
    lcd.print(now.minute(), DEC);
    lcd.print(':');
    lcd.print(now.second(), DEC);
    digitalWrite(r, LOW);
    digitalWrite(b, LOW);
    digitalWrite(g, LOW);
    count = 1;
  }

  delay(1000);
}