//# Professor Cristiano Teixeira
//# Mudanças do original Sob Licença Apache 2.0
// Para testar isolado sem o outro projeto
// Abra o site:
// 1. http://www.hivemq.com/demos/websocket-client/
// 2. Click em "Connect"
// 3. No campo Publish, deixe o Topic como "Aula_SEI_2026"
// 4. Escreva alguma mensagem, por exemplo: {"Botao" : True} 
// 5. click em "Publish"


#include <WiFi.h>
#include <PubSubClient.h>
#include "DHTesp.h"
#include "HX711.h"
// WiFi
const char* ssid = "Wokwi-GUEST";
const char* password = "";
// MQTT
const char* mqtt_server = "broker.hivemq.com";

WiFiClient espClient;
PubSubClient client(espClient);
// DHT22
#define DHT_PIN 15
DHTesp dht;
// PIR
#define PIR_PIN 13
// HX
HX711 scale;
// Potenciometro
#define POT 17

// MQTT Reconnect
void reconnect() {
  while (!client.connected()) {
    Serial.print("Conectando ao MQTT...");
    if (client.connect("ESP32Client")) {
      Serial.println("Conectado com Sucesso");
    } else {
      Serial.println("Desconectado");
      delay(2000);
    }
  }
}

void setup() {
  Serial.begin(115200);
  // DHT22
  dht.setup(DHT_PIN, DHTesp::DHT22);
  // PIR
  pinMode(PIR_PIN, INPUT);
  //HX Mudar as portas
   scale.begin(19, 18);
  // WiFi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi conectado!");
  // MQTT
  client.setServer(mqtt_server, 1883);
}

void loop() {

  // MQTT reconect
  if (!client.connected()) {
    reconnect();
  }
  client.loop();
  // Faço todas as leituras
  TempAndHumidity data = dht.getTempAndHumidity();
  String temp = String(data.temperature, 2);
  String hum = String(data.humidity, 1);
  String massa = String(scale.get_units()/409.6);
  bool motion = digitalRead(PIR_PIN);
  String move = String(motion);
  String potenc = String(analogRead(POT));

 
  
  Serial.println("Temperatura : " + temp + "C");
  client.publish("/SEI2026/temp", temp.c_str());
  Serial.println("Umidade : " + hum);
  client.publish("/SEI2026/hum", hum.c_str());
  Serial.println("Presenca: "+ move);
  client.publish("/SEI2026/presenca", move.c_str());
  Serial.println("Massa: "+ massa);
  client.publish("/SEI2026/massa", massa.c_str());
  Serial.println("Potenciometro: "+ potenc);
  client.publish("/SEI2026/potencia", potenc.c_str());

  delay(3000);
}