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

#define SCREEN_WIDTH 128 // Lebar layar OLED
#define SCREEN_HEIGHT 64 // Tinggi layar OLED
#define OLED_RESET -1

// Definisi pin buzzer
#define BUZZER_PIN 23

// Inisialisasi objek OLED
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

// Durasi dan frekuensi untuk setiap nada lagu "Happy Birthday"
const int durations[] = {400, 400, 800, 400, 400, 800, 400, 400, 400, 400, 400, 800, 400, 400, 800, 400, 400, 800, 400, 400, 800, 400, 400, 400, 400, 800};
const int notes[] = {262, 262, 294, 262, 349, 330, 262, 262, 294, 262, 392, 349, 262, 262, 523, 440, 349, 330, 294, 466, 466, 440, 349, 392, 349};
const char *lyrics[] = {
  "Happy",
  "birthday",
  "to you,",
  "Happy",
  "birthday",
  "to you,",
  "Happy",
  "birthday",
  "dear Ovi,",
  "Happy",
  "birthday",
  "to you!"
};

void playTone(int tone, int duration) {
  ledcWriteTone(0, tone); // Mengatur frekuensi nada
  delay(duration);
  ledcWriteTone(0, 0); // Mematikan nada
  delay(50); // Waktu jeda antara nada
}

void setup() {
  // Konfigurasi buzzer
  ledcSetup(0, 2000, 8);
  ledcAttachPin(BUZZER_PIN, 0);

  // Inisialisasi komunikasi I2C untuk layar OLED
  Wire.begin(12, 14); // GPIO 21 = SDA, GPIO 22 = SCL

  // Inisialisasi layar OLED
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }

  // Tampilkan lirik awal pada layar OLED
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(0, 0);
  display.println("Happy Birthday Ovi!");
  display.display();
}

void loop() {
  // Memainkan lagu "Happy Birthday" dan menampilkan liriknya
  for (int i = 0; i < sizeof(notes) / sizeof(notes[0]); i++) {
    display.clearDisplay();
    display.setTextSize(1);
    display.setTextColor(SSD1306_WHITE);
    display.setCursor(0, 0);
    display.println("17 years old Ovi");
    
    // Menampilkan lirik sesuai instrumen
    if (i < sizeof(lyrics) / sizeof(lyrics[0])) {
      display.setCursor(0, 10);
      display.print(lyrics[i]);
    }
    
    display.display();
    
    playTone(notes[i], durations[i]);
  }
  delay(5000); // Jeda antara pemutaran lagu
}