#include "DHT.h"
#include "buzzer.h"

#define DHTPIN 2     
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321

#define SPEAKER_PIN 10

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 20, 4);

DHT dht(DHTPIN, DHTTYPE);

const int merah = 13;
const int kuning = 12;
const int biru = 11;

String statusB;

void setup() {
  // Serial.begin(115200);
  // Serial.println(F("DHT22 example!"));
  lcd.init();
  lcd.backlight();
  lcd.setCursor(1, 0);
  lcd.print("Hello, Wokwi!");

  pinMode(SPEAKER_PIN, OUTPUT);

  pinMode(merah, OUTPUT);
  pinMode(kuning, OUTPUT);
  pinMode(biru, OUTPUT);

  dht.begin();
}

void loop() {
  // int chk = DHT_read22(DHT22_PIN);
  float temperature = dht.readTemperature();

  String statusA = "Suhu: " + String(temperature) + " Celcius";

  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print(statusA);

  lcd.print("Temp: "); 
  lcd.print(temperature);
  lcd.println("Celcius");

  lcd.setCursor(0,1);
  if (temperature < 29) {
    statusB = "Suhu Rendah";
    digitalWrite(biru, HIGH);
    digitalWrite(kuning, LOW);
    digitalWrite(merah, LOW);
    noTone(SPEAKER_PIN);
  } else if (temperature < 35) {
    statusB = "Suhu Cukup";
    digitalWrite(biru, LOW);
    digitalWrite(kuning, HIGH);
    digitalWrite(merah, LOW);
    noTone(SPEAKER_PIN);
  } else {
    statusB = "Suhu Panas";
    digitalWrite(biru, LOW);
    digitalWrite(kuning, LOW);
    digitalWrite(merah, HIGH);
    tone(SPEAKER_PIN, NOTE_A6);
  }
  lcd.setCursor(autoCenter(statusB), 1);
  lcd.print(statusB);

  delay(2000);
}

int autoCenter(String text) {
int length = text.length();

// return floor((16 - length) / 2);
return (16 - length) / 2;

}