#include <WiFi.h>
#include <PubSubClient.h>
#include "DHT.h"

#define DHTPIN 27
#define DHTTYPE DHT22

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

WiFiClient espClient;
PubSubClient client(espClient);
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  dht.begin();

  // Conectar ao Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }
  Serial.println("\nWi-Fi conectado");

  // Configurar broker MQTT
  client.setServer(mqtt_server, 1883);
  while (!client.connected()) {
    if (client.connect("ESP32Client")) {
      Serial.println("Conectado ao broker MQTT!");
    } else {
      Serial.print("Falha na conexão. Código de erro: ");
      Serial.println(client.state());
      delay(2000);
    }
  }
}

void loop() {
  static unsigned long lastPublish = 0;

  if (millis() - lastPublish > 5000) {
    float temp = dht.readTemperature();
    if (!isnan(temp)) {
      String message = String(temp);
      client.publish("Evandro/dashboard/sensor/temperature", message.c_str());
      Serial.println("Temperatura publicada: " + message);
    } else {
      Serial.println("Falha na leitura do sensor!");
    }
    lastPublish = millis();
  }

  client.loop();
}