#include <WiFi.h>
#include <DHT.h>
#include <HTTPClient.h>

#define DHTPIN 23     
#define DHTTYPE DHT22 

DHT dht(DHTPIN, DHTTYPE);

const char* server = "http://api.thingspeak.com/update"; 
const char* apiKey = "XWHIWMKC1QMKJ7YV"; 
void setup() {
  Serial.begin(115200);
  dht.begin();
  WiFi.begin("Wokwi-GUEST", "", 6);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
}

void loop() {
  float h = dht.readHumidity();
  float t = dht.readTemperature(); 

  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }


  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.println(" *C");


  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    String url = String(server) + "?api_key=" + apiKey + "&field1=" + String(t) + "&field2=" + String(h);
    
    http.begin(url);
    int httpResponseCode = http.GET();
    
    if (httpResponseCode > 0) {
      String response = http.getString();
      Serial.println(httpResponseCode);
      Serial.println(response);
    } else {
      Serial.print("Error on sending GET: ");
      Serial.println(httpResponseCode);
    }
    
    http.end();
  }


  delay(20000);
}