// === WOKWI DEMO KODU ===
// Bu kod sadece video çekimi içindir.
// Gerçek web server kodu BlueGrays uygulamasında /
// This is a demo code for video shooting only.
// Real web server code is in the BlueGrays app.

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <WiFi.h>

const char* WIFI_SSID = "Wokwi-GUEST";
const char* WIFI_PASS = "";

#define LED_PIN 5

bool ledState = false;
LiquidCrystal_I2C lcd(0x27, 16, 2);

// Demo zamanlamasi / Demo timing
unsigned long lastToggle = 0;
unsigned long nextDelay = 2500;

void updateLcd() {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("IP:");
  lcd.print(WiFi.localIP());
  lcd.setCursor(0, 1);
  lcd.print(ledState ? "LED: ACIK   " : "LED: KAPALI ");
}

void setup() {
  pinMode(LED_PIN, OUTPUT);
  digitalWrite(LED_PIN, LOW);

  Wire.begin(21, 22);
  lcd.init();
  lcd.backlight();

  // Splash 3sn
  lcd.setCursor(3, 0);
  lcd.print("BlueGrays");
  lcd.setCursor(2, 1);
  lcd.print("WebServer v1");
  delay(3000);
  lcd.clear();

  lcd.setCursor(0, 0);
  lcd.print("WiFi baglaniyor");
  lcd.setCursor(0, 1);
  lcd.print("Connecting...");

  WiFi.mode(WIFI_STA);
  WiFi.begin(WIFI_SSID, WIFI_PASS);
  while (WiFi.status() != WL_CONNECTED) delay(500);

  updateLcd();
  lastToggle = millis();
}

void loop() {
  // Kullanici buton bastiymis gibi LED'i otomatik toggle et
  // Auto toggle LED as if user pressed buttons
  if (millis() - lastToggle >= nextDelay) {
    lastToggle = millis();
    ledState = !ledState;
    digitalWrite(LED_PIN, ledState);
    updateLcd();
    // Rastgele 2-4 sn bekle (daha gercekci hissetsin)
    // Random 2-4s wait (more realistic feel)
    nextDelay = 2000 + random(2000);
  }
}