#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET     -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

// Gambar kue ulang tahun (32x32 pixel)
const unsigned char cake [] PROGMEM = {
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x18,0x00,0x18,0x00,0x00,0x00,0x00,
  0x00,0x24,0x00,0x24,0x00,0x00,0x00,0x00,
  0x00,0x42,0x00,0x42,0x00,0x00,0x00,0x00,
  0x00,0x81,0x00,0x81,0x00,0x00,0x00,0x00,
  0x7E,0xFF,0x7E,0xFF,0x7E,0x00,0x00,0x00,
  0x42,0xA5,0x42,0xA5,0x42,0x00,0x00,0x00,
  0x81,0x99,0x81,0x99,0x81,0x00,0x00,0x00,
  0x7E,0xFF,0x7E,0xFF,0x7E,0x00,0x00,0x00,
  0x00,0x7E,0x00,0x7E,0x00,0x00,0x00,0x00,
  0x00,0x42,0x00,0x42,0x00,0x00,0x00,0x00,
  0x00,0x3C,0x00,0x3C,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};

// Gambar love (32x32 pixel)
const unsigned char love [] PROGMEM = {
  0x00,0x00,0x06,0x60,0x1F,0xF8,0x3F,0xFC,
  0x7F,0xFE,0x7F,0xFE,0xFF,0xFF,0xFF,0xFF,
  0xFF,0xFF,0xFF,0xFF,0x7F,0xFE,0x3F,0xFC,
  0x1F,0xF8,0x0F,0xF0,0x07,0xE0,0x03,0xC0,
  0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};

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

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("OLED gagal ditemukan"));
    for(;;);
  }

  display.clearDisplay();

  // Tulis ucapan
  display.setTextSize(1);             // Ukuran huruf
  display.setTextColor(WHITE);
  display.setCursor(10, 0);           // Posisi teks
  display.println("Happy Birthday,");
  display.setCursor(24, 10);
  display.println("Mauliddin!");

  // Gambar kue di kiri bawah
  display.drawBitmap(0, 28, cake, 32, 32, WHITE);

  // Gambar love di kanan bawah
  display.drawBitmap(96, 28, love, 32, 32, WHITE);

  display.display(); // Tampilkan semua
}

void loop() {
  // Kosong karena hanya tampil statis
}