#include <WiFi.h>

void setup() {
  Serial.begin(115200);
  delay(1000); // Wait a bit for the Serial Monitor to initialize

  Serial.println("Scanning for Wi-Fi networks...");

  // Start Wi-Fi in station mode
  WiFi.mode(WIFI_STA);
  WiFi.disconnect(); // Disconnect from any previous connection

  // Scan for networks
  int networks = WiFi.scanNetworks();

  if (networks == 0) {
    Serial.println("No networks found");
  } else {
    Serial.printf("%d networks found:\n\n", networks);

    for (int i = 0; i < networks; ++i) {
      // Print SSID, RSSI (signal strength), and encryption type
      Serial.printf("%d: %s, Signal Strength: %d dBm, Encryption: %s\n",
                    i + 1, WiFi.SSID(i).c_str(), WiFi.RSSI(i),
                    encryptionType(WiFi.encryptionType(i)));
    }
  }
}

void loop() {
  // Nothing needed in the loop
  delay(10000); // Scan every 10 seconds
}

// Helper function to convert encryption type to a string
String encryptionType(wifi_auth_mode_t type) {
  switch (type) {
    case WIFI_AUTH_OPEN:
      return "Open";
    case WIFI_AUTH_WEP:
      return "WEP";
    case WIFI_AUTH_WPA_PSK:
      return "WPA/PSK";
    case WIFI_AUTH_WPA2_PSK:
      return "WPA2/PSK";
    case WIFI_AUTH_WPA_WPA2_PSK:
      return "WPA/WPA2/PSK";
    case WIFI_AUTH_WPA2_ENTERPRISE:
      return "WPA2/Enterprise";
    case WIFI_AUTH_WPA3_PSK:
      return "WPA3/PSK";
    default:
      return "Unknown";
  }
}