#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "DHTesp.h"

const int DHT_PIN = 15;
#define SCREEN_WIDTH 128 // OLED width,  in pixels
#define SCREEN_HEIGHT 64 // OLED height, in pixels

// create an OLED display object connected to I2C
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
DHTesp dhtSensor;

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);

  // initialize OLED display with I2C address 0x3C
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("failed to start SSD1306 OLED"));
    for(;;);
  }

  pinMode(25, OUTPUT);
  pinMode(26, OUTPUT);
  pinMode(27, OUTPUT);

  delay(2000);         // wait two seconds for initializing
  display.clearDisplay(); // clear display

  display.setTextSize(1);         // set text size
  display.setTextColor(WHITE);    // set text color
  display.setCursor(0, 5);       // set position to display (x,y)
  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  delay(100);
}

void loop() {
  display.clearDisplay();
  display.setCursor(0, 5); 
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  display.println("Temp: " + String(data.temperature, 2) + "°C");
  display.println("Humidity: " + String(data.humidity, 1) + "%");
  display.display();

  digitalWrite(25,LOW);
  digitalWrite(26,LOW);
  digitalWrite(27,LOW);

  if(data.temperature >= 22){
  digitalWrite(25,HIGH);
  }
  else{
    digitalWrite(25,LOW);
  }

  if(data.temperature <= 18){
  digitalWrite(26,HIGH);
  }
  else{
    digitalWrite(26,LOW);
  }

  if(data.humidity < 40 and (> 50)){
  digitalWrite(27,HIGH);
  }
  else{
    digitalWrite(27,LOW);
  }
  delay(2000); // Wait for a new reading from the sensor (DHT22 has ~0.5Hz sample rate)

  
  
  digitalWrite(27,HIGH);
}