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

#define DHTPIN 13
#define DHTTYPE DHT22
#define Buzzer 4
const int servoPin = 18;

LiquidCrystal_I2C lcd(0x27, 20, 4);
DHT dht(DHTPIN, DHTTYPE);
Servo servo;
RTC_DS3231 RTC;

float Temp, Humi;
int pos = 0;

void setup() {
  Serial.begin(115200);
  dht.begin();
  RTC.begin();
  lcd.init();
  lcd.backlight();
  servo.attach(servoPin);
  pinMode(Buzzer, OUTPUT);
}

void loop() {

  DateTime now = RTC.now();

  if (now.hour() == 11 && now.minute() == 49 ) {
    for(pos = 0; pos <=180; pos++){
      servo.write(pos);
      delay(10);
    }
  }else if (now.hour() == 11 && now.minute() == 50 ) {
    pos = 0;
    servo.write(pos);
  }else if (now.hour() == 16 && now.minute() == 00 ) {
    for(pos = 0; pos <=180; pos++){
      servo.write(pos);
      delay(10);
    }
  }else if (now.hour() == 17 && now.minute() == 00 ) {
    pos = 0;
    servo.write(pos);
  }

  if((Temp >= 25 && Temp <= 35)&&(Humi >= 60 && Humi <= 80)){
    lcd.clear();
    lcd_display(0, 0, "TEMPERATURE:");
    lcd_display_float(13, 0, Temp);
    lcd_display(19, 0, "C");
    lcd_display(0, 1,"HUMIDITY:");
    lcd_display_float(13, 1, Humi);
    lcd_display(19, 1, "%");
  }else if((Temp < 25)&&(Humi >= 60 && Humi <= 80)){
    lcd.clear();
    lcd_display(0, 0, "WARNING!!!");
    lcd_display(0, 1, "NOT ENOUGH TEMP");
    digitalWrite(Buzzer, HIGH);
    delay(500);
    digitalWrite(Buzzer, LOW);
    delay(500);
  }else if((Temp > 35)&&(Humi >= 60 && Humi <= 80)){
    lcd.clear();
    lcd_display(0, 0, "WARNING!!!");
    lcd_display(0, 1, "TOO MUCH TEMP");
    digitalWrite(Buzzer, HIGH);
    delay(500);
    digitalWrite(Buzzer, LOW);
    delay(500);
  }else if((Temp >= 25 && Temp <= 35)&&(Humi < 60)){
    lcd.clear();
    lcd_display(0, 0, "WARNING!!!");
    lcd_display(0, 1, "NOT ENOUGH HUMI");
    digitalWrite(Buzzer, HIGH);
    delay(500);
    digitalWrite(Buzzer, LOW);
    delay(500);
    for(pos = 0; pos <=180; pos++){
      servo.write(pos);
      delay(10);
    }
  }else if((Temp >= 25 && Temp <= 35)&&(Humi > 80)){
    lcd.clear();
    lcd_display(0, 0, "WARNING!!!");
    lcd_display(0, 1, "TOO MUCH HUMI");
    digitalWrite(Buzzer, HIGH);
    delay(500);
    digitalWrite(Buzzer, LOW);
    delay(500);
  }else if((Temp < 25)&&(Humi < 60)){
    lcd.clear();
    lcd_display(0, 0, "WARNING!!!");
    lcd_display(0, 1, "NOT ENOUGH HUMI&TEMP");
    digitalWrite(Buzzer, HIGH);
    delay(500);
    digitalWrite(Buzzer, LOW);
    delay(500);
    for(pos = 0; pos <=180; pos++){
      servo.write(pos);
      delay(10);
    }
  }else if((Temp > 35)&&(Humi > 80)){
    lcd.clear();
    lcd_display(0, 0, "WARNING!!!");
    lcd_display(0, 1, "TOO MUCH HUMI&TEMP");
    digitalWrite(Buzzer, HIGH);
    delay(500);
    digitalWrite(Buzzer, LOW);
    delay(500);
  }else if((Temp < 25)&&(Humi > 80)){
    lcd.clear();
    lcd_display(0, 0, "WARNING!!!");
    lcd_display(0, 1, "NOT ENOUGH TEMP");
    lcd_display(0, 2, "TOO MUCH HUMI");
    digitalWrite(Buzzer, HIGH);
    delay(500);
    digitalWrite(Buzzer, LOW);
    delay(500);
  }else if((Temp > 35)&&(Humi < 60)){
    lcd.clear();
    lcd_display(0, 0, "WARNING!!!");
    lcd_display(0, 1, "TOO MUCH TEMP");
    lcd_display(0, 2, "NOT ENOUGH HUMI");
    digitalWrite(Buzzer, HIGH);
    delay(500);
    digitalWrite(Buzzer, LOW);
    delay(500);
    for(pos = 0; pos <=180; pos++){
      servo.write(pos);
      delay(10);
    }
  }
  temp_and_humidity();
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.print(now.second(), DEC);
  Serial.println();
  delay(2000);
}

void temp_and_humidity(){
  Temp = dht.readTemperature();
  Humi = dht.readHumidity();
}

void lcd_display(int x, int y, String t){
  lcd.setCursor(x,y);
  lcd.print(t);
}

void lcd_display_float(int x, int y, float t){
  lcd.setCursor(x,y);
  lcd.print(String(t));
}