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

WiFiClient espClient;
PubSubClient mqttClient(espClient);

void setup() {
  Serial.begin(115200);
  setupWifi();
  setupMqtt();
}

void loop() {
  if (!mqttClient.connected()) {
    connectToBroker();
  }
  mqttClient.loop();


  // here we are publishing to a topic
  mqttClient.publish("PRL TEMP", "25.24");
  delay(1000);
}

void setupWifi() {
  WiFi.begin("Wokvi-GUEST", "");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
}

void setupMqtt() {
  mqttClient.setServer("test.mosquitto.org", 1883);
}

void connectToBroker() {
  while (!mqttClient.connected()) {
    Serial.print("Attempting MQTT connection...");
    if (mqttClient.connect("ESP32_BOARD_RANDOM-ADDRESS")) {
      Serial.println("connected");
    } else {
      Serial.println("failed");
      Serial.println(mqttClient.state());
    }
  }
}