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

const char* ssid = "ANLI";
const char* password = "Actua1455";

const char* mqtt_server = "broker.emqx.io";
const char* mqtt_Client = "FabAcademy_Colombia";
const char* mqtt_Topic_Pub = "FabAcademy/week11";

WiFiClient espClient;
PubSubClient client(espClient);


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

  client.setServer(mqtt_server, 1883);
}

void setup_wifi() {
  delay(10);
  // We start by connecting to a WiFi network
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}


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

void loop() {
  // put your main code here, to run repeatedly:

  if (!client.connected()) {
    reconnect();
  }
  client.loop();

  if (Serial.available()) {
    int angle = Serial.parseInt();
    Serial.println(angle);
    if (angle >= 0 && angle <= 180) {
      char buf[4];
      itoa(angle, buf, 10);
      client.publish(mqtt_Topic_Pub, buf);
    }
    Serial.read();  // clear newline
  }
}