#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);

#include <WiFi.h>
#include <MQTT.h>

const char ssid[] = "Wokwi-GUEST";
const char pass[] = "";

WiFiClient net;
MQTTClient client;

void connect() {
  Serial.print("checking wifi...");
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(1000);
  }

  Serial.print("\nconnecting...");
  while (!client.connect("arduino", "public", "public")) {
    Serial.print(".");
    delay(1000);
  }

  Serial.println("\nconnected!");

  client.subscribe("koalawan45/led1");
  client.subscribe("koalawan45/led2");
}

void messageReceived(String &topic, String &payload) {
  Serial.println(topic + ": " + payload);

  if(topic == "koalawan45/led1"){
    if(payload == "1"){
      digitalWrite(32, HIGH);
    }else if(payload == "0"){
      digitalWrite(32, LOW);
    }
  }

  if(topic == "koalawan45/led2"){
    if(payload == "1"){
      digitalWrite(33, HIGH);
    }else if(payload == "0"){
      digitalWrite(33, LOW);
    }
  }
}

void setup ()
{
  Serial.begin(115200);

  // start wifi and mqtt
  WiFi.begin(ssid, pass);
  client.begin("public.cloud.shiftr.io", net);
  client.onMessage(messageReceived);

  connect();

  LCD.init();
  LCD.backlight();
  LCD.setCursor(2, 0);
  LCD.print("WORKSHOP IoT");
  LCD.setCursor(2, 1);
  LCD.print("NOCTURNAILED");
  pinMode(32, OUTPUT);
  pinMode(33, OUTPUT);
  pinMode(12, INPUT);
} 
void loop ()
 {
  client.loop();
  delay(10);

  // check if connected
  if (!client.connected()) {
    connect();
  }
  
  // digitalWrite(32, HIGH);
  // delay(1000);
  // digitalWrite(32, LOW);
  // delay(1000);
  // if (digitalRead(12) == 1)
  // {
  //   digitalWrite(33, HIGH);
  // }
  // else{
  //   digitalWrite(33, LOW);
  // }
 }