#include <LiquidCrystal_I2C.h>
#include <RTClib.h>
#include <ESP32Servo.h>
#include "DHTesp.h"

LiquidCrystal_I2C lcd(0x27, 20, 4);
DHTesp dhtSensor;
RTC_DS1307 rtc;
Servo myservo1; 

char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};

unsigned long prevMillis = 0;
const long interval = 1000;

const int DHT_PIN = 15;

int a;

void setup () {
  Serial.begin(115200);
  
  lcd.init(); 
  lcd.backlight();

  dhtSensor.setup(DHT_PIN, DHTesp::DHT22); 

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

  myservo1.attach(4); 
  myservo1.write(0);
}

void print2digits(int number) {         //Testing on the number before displaying it
  if (number >= 0 && number < 10) {     //if it's 0<=x<10 we add a 0 before e.g: 4 -> 04
    lcd.print('0');
  }
  lcd.print(number);
}

void jam(){
  DateTime now = rtc.now();
  
  lcd.setCursor(0, 0);
           //0123456789012345 
  print2digits(now.day());
  lcd.print("/");
  print2digits(now.month());
  lcd.print("/");
  lcd.print(now.year());
  
  lcd.setCursor(11, 0);
           //0123456789012345      
  print2digits(now.hour());
  lcd.print(':');
  print2digits(now.minute());
  lcd.print(':');
  print2digits(now.second());

  if ((now.hour() == 9) && (now.minute() == 0) && (now.second() == 0)) {
      myservo1.write(90);
      delay(2000);
      myservo1.write(0);
    }
  else if ((now.hour() == 12) && (now.minute() == 0) && (now.second() == 0)) {
      myservo1.write(90);
      delay(2000);
      myservo1.write(0);
    }
  else if ((now.hour() == 12) && (now.minute() == 0) && (now.second() == 0)) {
      myservo1.write(90);
      delay(2000);
      myservo1.write(0);
    }
  else {
    myservo1.write(0);
  }

  String days = daysOfTheWeek[now.dayOfTheWeek()];

  if ( days == "Sunday" || days == "Monday" || days == "Friday" ){
    lcd.setCursor(6, 2);
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
  }

  else if ( days == "Tuesday" || days == "Thursday" || days == "Saturday"){
    lcd.setCursor(5, 2);
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
  }

  else if ( days == "Wednesday"){
    lcd.setCursor(4, 2);
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
  }
}

void dht(){
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();

  lcd.setCursor(0, 1);
           //0123456789012345 
  lcd.print("T:");
  lcd.print(data.temperature);
  lcd.println("*C");
  lcd.setCursor(11, 1);
           //0123456789012345 
  lcd.print("H:");
  lcd.print(data.humidity);
  lcd.println("%");
}

void loop () {
  /*unsigned long currentMillis = millis();
    if (currentMillis - prevMillis >= interval) {
      prevMillis = currentMillis;
      dht();
      jam();
      //delay(1000);
    }*/
    dht();
    jam();

    

  /*for(a=0;a<=180;a++){
    myservo.write(a);  
    delay(15);
  }
  delay(1000);
  for(a=180;a>=0;a--){ 
    myservo.write(a);
    delay(15);
  }
  delay(1000);*/ 
}