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

#define BSW1 9  // Bell Switch 1
#define BSW2 7  // Bell Switch 2
#define BSW3 6  // Bell Switch 3
#define BSW4 4  // Bell Switch 4

#define DRL0 1  // Door Relay 0
#define LED0 LED_BUILTIN  // GPIO8 on C3

volatile uint8_t sw_flag = 0;

#define          DevID        "ESP32C3-MasterSW"

const   char*    WiFiSSID   = "Wokwi-GUEST";
const   char*    password   = "";
const   char*    mqttServer = "broker.hivemq.com";
const   uint16_t mqttPort   = 1883;
//const char*    mqttUser   = "MQTT_USER";
//const char*    mqttPw     = "MQTT_PW";
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(BSW1, INPUT_PULLUP);
  pinMode(BSW2, INPUT_PULLUP);
  pinMode(BSW3, INPUT_PULLUP);
  pinMode(BSW4, INPUT_PULLUP);
  
  pinMode(DRL0, OUTPUT);
  pinMode(LED0, OUTPUT);

  digitalWrite(DRL0, LOW);
  digitalWrite(LED0, LOW);

  attachInterrupt(digitalPinToInterrupt(BSW1), ISRflag1, RISING);
  attachInterrupt(digitalPinToInterrupt(BSW2), ISRflag2, RISING);
  attachInterrupt(digitalPinToInterrupt(BSW3), ISRflag3, RISING);
  attachInterrupt(digitalPinToInterrupt(BSW4), ISRflag4, RISING);
}

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

  /*
  flagCall(0);
  flagCall(1);
  flagCall(2);
  flagCall(3);
  */
}