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

#define DHTPIN 4
#define DHTTYPE DHT22

const char* ssid = "Wokwi-GUEST";
const char* password = "";

String firebaseUrl = "https://teste-42ac5-default-rtdb.firebaseio.com/sensor.json";

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  Serial.println("Initializing WiFi...");

  dht.begin();

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(500);
  }

  Serial.println("\nWiFi conectado!");
  Serial.print("IP: ");
  Serial.println(WiFi.localIP());
}

void loop() {

  float temperatura = dht.readTemperature();
  float umidade = dht.readHumidity();

  // Verifica se houve erro na leitura
  if (isnan(temperatura) || isnan(umidade)) {
    Serial.println("Erro de leitura do DHT22");
    delay(2000);
    return;
  }

  Serial.print("Temperatura: ");
  Serial.print(temperatura);
  Serial.println(" °C");

  Serial.print("Umidade: ");
  Serial.print(umidade);
  Serial.println(" %");

  // Monta o JSON
  String json = "{";
  json += "\"temperatura\":";
  json += temperatura;
  json += ",";
  json += "\"umidade\":";
  json += umidade;
  json += "}";

  // Envia para o Firebase
  HTTPClient http;

  http.begin(firebaseUrl);
  http.addHeader("Content-Type", "application/json");

  int httpResponseCode = http.PUT(json);

  Serial.print("HTTP Response: ");
  Serial.println(httpResponseCode);

  if (httpResponseCode > 0) {
    Serial.println(http.getString());
  } else {
    Serial.print("Erro HTTP: ");
    Serial.println(httpResponseCode);
  }

  http.end();

  delay(5000);
}