#if defined(ESP8266)
#include <ESP8266WiFi.h>
#elif defined(ESP32)
#include <WiFi.h>
#endif

#include <WiFiUdp.h>
#include <NTPClient.h>

#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""

#define SERIAL_DEBUG_BAUD 115200

#define LED 15
int status = WL_IDLE_STATUS;

// NTP client setup
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, "pool.ntp.org", 0, 60000); // GMT timezone, update every 60s

void InitWiFi() {
  Serial.println("Connecting to AP ...");
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.println(".");
  }
  Serial.println("Connected to AP");
}

void reconnect() {
  status = WiFi.status();
  if (status != WL_CONNECTED) {
    WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
    while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.println(".");
    }
    Serial.println("Connected to AP");
  }
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(SERIAL_DEBUG_BAUD);
  Serial.println();
  InitWiFi();
  pinMode(LED, OUTPUT);

  // Start NTP Client
  timeClient.begin();
}

void loop() {
  delay(1000);

  if (WiFi.status() != WL_CONNECTED) {
    reconnect();
  } 
  else {
    Serial.print("WiFi sudah terkoneksi dengan ");
    Serial.println(WIFI_SSID);
    Serial.print("IP: ");
    Serial.println(WiFi.localIP());
    
    // Update time from NTP server
    timeClient.update();
    
    // Print GMT time
    Serial.print("1. GMT Time: ");
    Serial.println(timeClient.getFormattedTime());

    // Print Epoch time
    Serial.print("2. Epoch Time: ");
    Serial.println(timeClient.getEpochTime());

    // Blink LED to indicate everything is working
    digitalWrite(LED, HIGH);
    delay(200);
    digitalWrite(LED, LOW);
  }
}