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

#define BUZZ 19
#define LED0 LED_BUILTIN  // GPIO8 on C3
#define SWR0 1

volatile boolean sw_flag = false;

#define          DevID        "ESP32C3-Slave1"

const   char*    WiFiSSID   = "Wokwi-GUEST";
const   char*    password   = "";
const   char*    mqttServer = "broker.hivemq.com";
const   uint16_t mqttPort   = 1883;
const   char*    mqttID     = DevID;
const   char*    DoorRL     = "teste-sw/DoorBell/DoorRL";
const   char*    BellSW     = "teste-sw/DoorBell/BellSW";

WiFiClient tcpSocket;
PubSubClient broker(tcpSocket);

void setup() {
  Serial.begin(9600);

  Serial.print("Connecting");
  WiFi.begin(WiFiSSID, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("\nConnected to WIFI: " + String(WiFiSSID));
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  broker.setServer(mqttServer, mqttPort);
  broker.setCallback(mqttCallback); //
  
  pinMode(BUZZ, OUTPUT);
  pinMode(LED0, OUTPUT);
  pinMode(SWR0, INPUT_PULLUP);

  digitalWrite(BUZZ, LOW);
  digitalWrite(LED0, LOW);

  attachInterrupt(digitalPinToInterrupt(SWR0), ISRflag0, RISING);
}

void loop() {
  if (!broker.connected())
    reconnect();
  broker.loop();
  mqttHandle();
}