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

int sw1 = 12;int sw2 = 13;int pot = 34;
const char *ssid = "Wokwi-GUEST";
const char *password = "";
const char *mqtt_broker = "broker.hivemq.com";
const char *topic = "Testpun";
const int mqtt_port = 1883;
WiFiClient espClient;
PubSubClient client(espClient);

void setup() {
  Serial.begin(115200);
  pinMode(sw1, INPUT_PULLUP);
  pinMode(sw2, INPUT_PULLUP);
  pinMode(pot, INPUT);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.println("Connecting to WiFi..");
  }
  Serial.println("Connected to the WiFi network");

  client.setServer(mqtt_broker, mqtt_port);
  client.setCallback(callback);

  while (!client.connected()) {
    String client_id = "esp8266-client-";
    client_id += String(WiFi.macAddress());
    Serial.printf("The client %s connects to mosquitto mqtt broker\n", client_id.c_str());
    if (client.connect(client_id.c_str())) {
      Serial.println("Public emqx mqtt broker connected");
    } else {
      Serial.print("failed with state ");
      Serial.print(client.state());
      delay(2000);
    }}
  client.publish(topic, "อุปกรณ์เชื่อมต่อเเล้ว");
  client.subscribe(topic);
}
void callback(char *topic, byte *payload, unsigned int length) {
  Serial.print("Message arrived in topic: ");
  Serial.println(topic);
  Serial.print("Message:");

  for (int i = 0; i < length; i++) {
    Serial.print((char)payload[i]);
  }
  Serial.println();
  Serial.println(" - - - - - - - - - - - -");
}

void loop() {
  client.loop();
   delay(200);
  int x = digitalRead(sw1);
  int y = digitalRead(sw2);
  Serial.println(x);
  Serial.println(y);
  Serial.println();
  int VR_Value = analogRead(pot);
  client.publish(topic, String(VR_Value).c_str());
  delay(1000);
  if (x == 1) {
    client.publish(topic, "HELLO");
  }
  if (y == 1) {
    client.publish(topic, "JUPITER");
  }}