#define BLYNK_TEMPLATE_ID "TMPL3GUyEKUcO"
#define BLYNK_TEMPLATE_NAME "Smart bulb"
#define BLYNK_AUTH_TOKEN "_dhqS67biKgrCSNkBBW6T1lbEX-sVyFx"

#include <WiFi.h>
#include <BlynkSimpleEsp32.h>

// Pin Definitions
#define PIR_PIN 23           // PIR motion sensor OUT pin
#define LED_PIN 22           // LED control pin

// Wokwi WiFi Network Credentials
const char* ssid = "Wokwi-GUEST";   // Wokwi network SSID
const char* password = "";           // No password required for Wokwi

void setup() {
  Serial.begin(115200);
  
  // Connect to Wi-Fi
  Serial.print("Connecting to WiFi...");
  WiFi.begin(ssid, password);
  
  // Wait for connection
  unsigned long startTime = millis();
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
    
    // Check for timeout (10 seconds)
    if (millis() - startTime > 10000) {
      Serial.println("Failed to connect to WiFi");
      return; // Exit setup
    }
  }
  Serial.println("Connected to WiFi!");

  // Initialize Blynk
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, password);
  Serial.println("Connecting to Blynk...");
  
  // Wait for Blynk connection
  while (!Blynk.connect()) {
    Serial.print(".");
    delay(1000);
  }
  Serial.println("Connected to Blynk!");

  // Set pin modes
  pinMode(PIR_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
  digitalWrite(LED_PIN, LOW); // Turn off LED initially
}

void loop() {
  Blynk.run(); // Handle Blynk connection

  // Read PIR sensor value
  bool motionDetected = digitalRead(PIR_PIN);

  // Control LED based on motion detection
  if (motionDetected) {
    Serial.println("Motion Detected!");
    digitalWrite(LED_PIN, HIGH); // Turn on the LED
    Blynk.virtualWrite(V0, 1);   // Update Blynk app (V0)
  } else {
    Serial.println("No Motion");
    digitalWrite(LED_PIN, LOW);  // Turn off the LED
    Blynk.virtualWrite(V0, 0);   // Update Blynk app (V0)
  }

  delay(1000); // Avoid excessive reading
}

// Blynk control function for LED (Virtual Pin V1)
BLYNK_WRITE(V1) {
  int value = param.asInt();        // Get value from Blynk app
  digitalWrite(LED_PIN, value);     // Control LED from Blynk
  Blynk.virtualWrite(V0, value);    // Update LED status in Blynk app
}