#include <WiFi.h>
#include <Firebase.h>

// WiFi details
#define SSID "Wokwi-GUEST"
#define PASSWORD ""

#define REFERENCE_URL "https://led-with-app-default-rtdb.firebaseio.com"  // Your Firebase project reference url

Firebase firebase(REFERENCE_URL);

int previousState = -1;

// Use GPIO 4–9 in Wokwi
#define LED_PIN1 1
#define LED_PIN2 2
#define LED_PIN3 3
#define LED_PIN4 4
#define LED_PIN5 5
#define LED_PIN6 6

void setup() {
  Serial.begin(9600);

  pinMode(LED_PIN1, OUTPUT);
  pinMode(LED_PIN2, OUTPUT);
  pinMode(LED_PIN3, OUTPUT);
  pinMode(LED_PIN4, OUTPUT);
  pinMode(LED_PIN5, OUTPUT);
  pinMode(LED_PIN6, OUTPUT);

  WiFi.mode(WIFI_STA);
  WiFi.disconnect();
  delay(1000);

  // Connect to WiFi
  Serial.println();
  Serial.println();
  Serial.print("Connecting to: ");
  Serial.println(SSID);
  //WiFi.begin(SSID, PASSWORD);
  WiFi.begin("Wokwi-GUEST", "", 6);

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

  Serial.println("");
  Serial.println("WiFi Connected");

  // Print the IP address
  Serial.print("IP Address: ");
  Serial.print("http://");
  Serial.print(WiFi.localIP());
  Serial.println("/");
}

void loop() {
int ledstate = firebase.getInt("Response/input");
 if (ledstate != previousState) {
      previousState = ledstate;
  Serial.print("Received Int:");
  Serial.println(ledstate);

    // Reset all
    digitalWrite(LED_PIN1, LOW);
    digitalWrite(LED_PIN2, LOW);
    digitalWrite(LED_PIN3, LOW);
    digitalWrite(LED_PIN4, LOW);
    digitalWrite(LED_PIN5, LOW);
    digitalWrite(LED_PIN6, LOW);

    // Set desired pin HIGH
    switch (ledstate) {
      case 0: digitalWrite(LED_PIN6, HIGH); break;
      case 1: digitalWrite(LED_PIN1, HIGH); break;
      case 2: digitalWrite(LED_PIN2, HIGH); break;
      case 3: digitalWrite(LED_PIN3, HIGH); break;
      case 4: digitalWrite(LED_PIN4, HIGH); break;
      case 5: digitalWrite(LED_PIN5, HIGH); break;
      default: break;
    }
  }
}