#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPLwkKM8699"
#define BLYNK_DEVICE_NAME "Monitoring Suhu Dan Kelembaban Warehouse"
#define BLYNK_AUTH_TOKEN "GWz9MI3XWNi1m4anjbMokHbuWLPC8ose"
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "DHTesp.h"
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
#include <Fonts/FreeSerif9pt7b.h>
#define SCREEN_WIDTH 128 
#define SCREEN_HEIGHT 64 
#define OLED_RESET -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

const int DHT_PIN = 15;
DHTesp dhtSensor;

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

BlynkTimer timer;

void sendSensor()
{
 TempAndHumidity  data = dhtSensor.getTempAndHumidity();
 Serial.println("Temp: " + String(data.temperature, 0) + "°C");
 Serial.println("Humidity: " + String(data.humidity, 1) + "%");
 Serial.println("---");
 Blynk.virtualWrite(V0, data.temperature); //mengirimkan data ke Virtual pin di Blynk Cloud
 Blynk.virtualWrite(V1, data.humidity); //mengirimkan data ke Virtual pin di Blynk Cloud

if (data.temperature > 25){
    Blynk.logEvent("alert", "Suhu terlalu panas");
}
}

void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  timer.setInterval(2000L, sendSensor);

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { 
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); 
  }
  display.clearDisplay();
  display.setTextSize(2);             
  display.setTextColor(WHITE);        
  display.setCursor(0,0);             
  display.println("IOT");
  display.setTextSize(2);             
  display.setTextColor(WHITE); 
  display.println("MASTER");
  display.setTextSize(2);      
  display.setTextColor(WHITE);
  display.print("CLASS");
  display.display();
  delay(5000);
}

void loop()
{
  Blynk.run();
  timer.run();
  float h = dhtSensor.getHumidity();
  float t = dhtSensor.getTemperature();
  
  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(0,0);     
  display.setTextColor(WHITE);
  display.println("TEMPERATURE:");
  display.setTextSize(2);  
  display.setTextColor(WHITE);
  display.print(t);
  display.println(" 'C");
  display.setTextSize(1);
  display.println("HUMIDITY:");
  display.setTextSize(2);  
  display.setTextColor(WHITE);
  display.print(h);
  display.display();
  delay(500);
}