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

const char* sand = "false";

// Replace the next variables with your SSID/Password combination
const char* ssid = "Sde-Guest";
const char* password = "";


//MQTT USERNAME, PASSWORD AND TOPIC
const char* mqtt_username = "admin";
const char* mqtt_password = "ciscogang123";
const char* clientID = "Alarm";

// Add your MQTT Broker IP address, example:
const char* mqtt_server = "10.142.110.108";

WiFiClient espClient;
PubSubClient client(espClient);

void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
    Serial.println("Attempting MQTT connection...");
    // Attempt to connect
    if (client.connect(clientID, mqtt_username, mqtt_password)) {
      Serial.println("Connected");
      sand = "true";
      // ... and subscribe to topic
      client.subscribe("test");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      // Wait 5 seconds before retrying
      delay(5000);
    }
  }
}


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  setup_wifi();
  client.setServer(mqtt_server, 1883);
}

void setup_wifi() {
  delay(1000);
  // We start by connecting to a WiFi network
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);
  delay (5000);
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  client.subscribe("test");

}

void loop() {
  // put your main code here, to run repeatedly:
  if (sand == "true"){
      client.publish("test", "Hello from ESP");
    }
      client.publish("test", "Hello from ESP");


}