#include <BLEDevice.h>

BLERemoteDevice* detectedDevice;

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

  // Set the callback function for BLE scans
  BLEDevice::setScanCallback(callback);

  // Start scanning for BLE devices
  BLEDevice::startScanning();
}

void loop() {
  // Handle Bluetooth events in the background
  BLEDevice::poll();

  // Print information about the detected device (if any)
  if (detectedDevice) {
    String address = detectedDevice->getAddress();
    String name = detectedDevice->getName();

    Serial.print("Address: ");
    Serial.println(address);
    Serial.print("Name: ");
    if (name.isEmpty()) {
      Serial.println("<No Name>");
    } else {
      Serial.println(name);
    }
    Serial.println("---");

    // You can optionally clear the detected device for subsequent scans
    detectedDevice = nullptr;
  }
}

// Callback function for BLE scans
void callback(BLEScanResults results) {
  if (results.advertisedDevice) {
    BLEAdvertisingData advData = results.advertisedDevice.getAdvertisingData();

    // You can filter devices based on specific criteria here (e.g., name, service UUIDs)
    // This example simply stores the first detected device

    if (!detectedDevice) {
      detectedDevice = &results.advertisedDevice;
    }
  }
}