// Include required libraries
#include "WiFi.h"
#include "AdafruitIO_WiFi.h"
#include "DHT.h"

// DHT setup
#define DHTPIN 4         // GPIO pin where DHT22 data pin is connected
#define DHTTYPE DHT22    // Define the DHT type (DHT22)
DHT dht(DHTPIN, DHTTYPE);

// WiFi and Adafruit IO settings
#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASS ""
#define IO_USERNAME "aanand0001"
#define IO_KEY "aio_ebvp34C4Nfv8OcgoWcYuAPXheGkt"

// Adafruit IO Setup
AdafruitIO_WiFi io(IO_USERNAME, IO_KEY, WIFI_SSID, WIFI_PASS);

// Adafruit IO Feeds
AdafruitIO_Feed *temperature = io.feed("Temperature");
AdafruitIO_Feed *humidity = io.feed("Humidity");

void setup() {
  // Start the serial communication
  Serial.begin(115200);

  // Start the DHT sensor
  dht.begin();

  // Connect to WiFi and Adafruit IO
  Serial.print("Connecting to Adafruit IO");
  io.connect();

  // Wait for connection to Adafruit IO
  while (io.status() < AIO_CONNECTED) {
    Serial.print(".");
    delay(500);
  }

  Serial.println("Connected to Adafruit IO!");

  // Set up the Adafruit IO connection handler
  io.run();
}

void loop() {
  // Read temperature and humidity from DHT22
  float h = dht.readHumidity();
  float t = dht.readTemperature(); // Celsius

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

  // Print values to serial monitor
  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.println(" *C");

  // Send data to Adafruit IO
  temperature->save(t);
  humidity->save(h);

  // Wait 30 seconds before next reading
  delay(30000);
}