#include <WiFi.h>
#include "time.h"

// Replace with your network credentials
const char* ssid = "Duwi Nofriyanti";

// NTP server to request time
const char* ntpServer = "pool.ntp.org";
const long gmtOffset_sec = 0;
const int daylightOffset_sec = 0;

void setup() {
  Serial.begin(115200);
  Serial.println("Initializing WiFi...");

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
  Serial.println("Setup done!");

  // Initialize NTP
  configTime(gmtOffset_sec, daylightOffset_sec, ntpServer);
}

void loop() {
  Serial.println("Scanning...");

  // WiFi.scanNetworks will return the number of networks found
  int n = WiFi.scanNetworks();
  Serial.println("Scan done!");

  if (n == 0) {
    Serial.println("No networks found.");
  } else {
    Serial.println();
    Serial.print(n);
    Serial.println(" networks found");

    for (int i = 0; i < n; ++i) {
      // Print SSID and RSSI for each network found
      Serial.print(i + 1);
      Serial.print(": ");
      Serial.print(WiFi.SSID(i));
      Serial.print(" (");
      Serial.print(WiFi.RSSI(i));
      Serial.print(")");
      Serial.println((WiFi.encryptionType(i) == WIFI_AUTH_OPEN) ? " " : "*");
      delay(10);
    }
  }

  // Get current time
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) {
    Serial.println("Failed to obtain time");
  } else {
    // Print GMT
    char timeStringBuff[50];
    strftime(timeStringBuff, sizeof(timeStringBuff), "%A, %B %d %Y %H:%M:%S", &timeinfo);
    Serial.print("Current time: ");
    Serial.println(timeStringBuff);

    // Print Unix epoch time
    time_t now = time(nullptr);
    Serial.print("Epoch time: ");
    Serial.println(now);
  }

  Serial.println("");
  // Wait a bit before scanning again
  delay(5000);
}