#define BLYNK_TEMPLATE_ID "TMPL20eDU4lWz"
#define BLYNK_TEMPLATE_NAME "devises 2"
#define BLYNK_AUTH_TOKEN "5ViRLreFL2ewIEnLrZ6ISIHl5OWzu6Ni"

bool fetch_blynk_state = true;  //true or false
#include <WiFi.h>
#include <BlynkSimpleEsp32.h>

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

#define LED_PIN 4
#define BUTTON_PIN 0    // LED switch pin connected to digital pin 26

bool ledState = LOW;
bool buttonPressed = false;
unsigned long lastDebounceTime = 0;

unsigned long debounceDelay = 10;

// Variables for relay and motor control

#define wifiLed   2   //D2
int wifiFlag = 0;

WidgetLCD lcd(V0);
char auth[] = BLYNK_AUTH_TOKEN;
BlynkTimer timer;

void checkButton() {
  int reading = digitalRead(BUTTON_PIN);

  if (reading == LOW && !buttonPressed) {
    buttonPressed = true;
    ledState = !ledState;
    digitalWrite(LED_PIN, ledState);
    Blynk.virtualWrite(V1, ledState);
    lastDebounceTime = millis();
  }

  if (reading == HIGH && buttonPressed && (millis() - lastDebounceTime > debounceDelay)) {
    buttonPressed = false;
  }
}

BLYNK_WRITE(V1) {
  ledState = param.asInt();
  digitalWrite(LED_PIN, ledState);
}

void checkBlynkStatus()
{ // called every 3 seconds by SimpleTimer
 
  bool isconnected = Blynk.connected();
  if (isconnected == false)
  {
    wifiFlag = 1;
    Serial.println("Blynk Not Connected");
    digitalWrite(wifiLed, LOW);
  }
  if (isconnected == true)
  {
    wifiFlag = 0;
    if (!fetch_blynk_state)
    {
Blynk.virtualWrite(LED_PIN,ledState);
    }
    digitalWrite(wifiLed, HIGH);
    Serial.println("Blynk Connected");
  }
}
 
BLYNK_CONNECTED()
{
  // Request the latest state from the server
  if (fetch_blynk_state)
  {
    Blynk.syncVirtual(BUTTON_PIN);
  }
}

void setup() {

  Serial.begin(115200);

  pinMode(LED_PIN, OUTPUT);
  pinMode(BUTTON_PIN, INPUT_PULLUP);
  pinMode(wifiLed, OUTPUT);

  WiFi.begin(ssid, pass);
  timer.setInterval(2000L, checkBlynkStatus); // check if Blynk server is connected every 2 seconds
  Blynk.config(auth);


      timer.setInterval(15L, checkButton);
      timer.setInterval(10L, updateLCD);         // Update LCD every 2 seconds
      }

void loop() {
  Blynk.run();
  timer.run();
}
void updateLCD() {
      if (ledState) {
    lcd.print(0, 0,"LED  ON");
  } else {
    lcd.print(0, 0,"LED OFF");
  }
}