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

LiquidCrystal_I2C lcd(0x27, 16, 2);

#define NTP_SERVER     "pool.ntp.org"
#define UTC_OFFSET     0
#define UTC_OFFSET_DST 0

unsigned long previousMillis = 0;
const long interval = 5000;
bool showTime = true;

const int RECV_PIN = 15;  // IR Receiver pin
IRrecv irrecv(RECV_PIN);
decode_results results;

void spinner() {
  static int8_t counter = 0;
  const char* glyphs = "\xa1\xa5\xdb";
  lcd.setCursor(15, 1);
  lcd.print(glyphs[counter++]);
  if (counter == strlen(glyphs)) {
    counter = 0;
  }
}

void printLocalTime() {
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) {
    lcd.setCursor(0, 1);
    lcd.print("Connection Err");
    return;
  }

  lcd.setCursor(0, 0);
  char timeStr[9];
  snprintf(timeStr, sizeof(timeStr), "%02d:%02d:%02d", timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec);
  lcd.print(timeStr);

  lcd.setCursor(0, 1);
  char dateStr[17];
  snprintf(dateStr, sizeof(dateStr), "%02d/%02d/%04d", timeinfo.tm_mday, timeinfo.tm_mon + 1, timeinfo.tm_year + 1900);
  lcd.print(dateStr);
}

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

  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("HELLO ARYAN");

  delay(2000); // Show "HELLO ARYAN" for 2 seconds
  lcd.clear();

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

  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
    spinner();
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Online");
  lcd.setCursor(0, 1);
  lcd.print("Updating time...");

  configTime(UTC_OFFSET, UTC_OFFSET_DST, NTP_SERVER);

  irrecv.enableIRIn(); // Start the IR receiver
}

void loop() {
  if (irrecv.decode(&results)) {
    unsigned long key_value = results.value;
    irrecv.resume(); // Receive the next value
    
    lcd.clear();
    if (key_value >= 0xFFA25D) { // Example IR remote code for button 1
      lcd.setCursor(0, 0);
      lcd.print("Number: 1");
    } else if (key_value >= 0xFF629D) { // Example IR remote code for button 2
      lcd.setCursor(0, 0);
      lcd.print("Number: 2");
    }
    // Add more conditions for other numbers as needed
  } else {
    unsigned long currentMillis = millis();
  
    if (currentMillis - previousMillis >= interval) {
      previousMillis = currentMillis;
      lcd.clear();
      
      if (showTime) {
        printLocalTime();
      } else {
        lcd.setCursor(0, 0);
        lcd.print("HELLO ARYAN");
      }
  
      showTime = !showTime;
    }
  }
}