#include <Arduino.h>
#include <U8glib.h>

U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NONE | U8G_I2C_OPT_DEV_0);

// Mendefinisikan nada-nada
#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978

// ... (daftar nada-nada dari kode sebelumnya)

// Melodi "Happy Birthday"
int melody[] = {
  NOTE_G4, NOTE_G4, NOTE_A4, NOTE_G4, NOTE_C5, NOTE_B4,
  NOTE_G4, NOTE_G4, NOTE_A4, NOTE_G4, NOTE_D5, NOTE_C5,
  NOTE_G4, NOTE_G4, NOTE_G5, NOTE_E5, NOTE_C5, NOTE_B4, NOTE_A4,
  NOTE_F5, NOTE_F5, NOTE_E5, NOTE_C5, NOTE_D5, NOTE_C5
};

// Durasi setiap nota (dalam milidetik)
int noteDurations[] = {
  4, 4, 4, 4, 4, 4,
  4, 4, 4, 4, 4, 4,
  4, 4, 4, 4, 4, 4, 4,
  4, 4, 4, 4, 4, 4
};

#include <Arduino.h>
#include <U8glib.h>

// ... (Definisi nada-nada dan melodi seperti sebelumnya)

bool isPlaying = false;
unsigned long previousMillis = 0;
unsigned long interval = 1000;

// Status tampilan: 0 untuk "Happy Birthday", 1 untuk pesan berikutnya
int displayStatus = 0;

void playHappyBirthdayAndDisplay() {
  static int melodyIndex = 0;
  static unsigned long melodyStartTime = 0;
  static unsigned long melodyDuration = 0;
  
  unsigned long currentMillis = millis();

  // Memeriksa apakah waktu tampilan OLED telah lewat interval yang ditentukan
  if (currentMillis - previousMillis >= interval) {
    // Menampilkan "Happy Birthday" atau pesan berikutnya di layar OLED
    u8g.firstPage();
    do {
      u8g.setFont(u8g_font_unifont);
      u8g.setPrintPos(20, 30);

      if (displayStatus == 0) {
        u8g.print("Happy !");
      } else if (displayStatus == 1) {
        u8g.print("Pesan Lainnya");
      }
    } while (u8g.nextPage());

    previousMillis = currentMillis;
  }

  // Memeriksa apakah melodi "Happy Birthday" sudah selesai
  if (isPlaying) {
    // Memeriksa apakah melodi telah selesai
    if (currentMillis - melodyStartTime >= melodyDuration) {
      noTone(8);
      isPlaying = false; // Menandai bahwa melodi telah selesai
    }
  } else {
    // Jika melodi belum dimainkan, mainkan melodi "Happy Birthday"
    tone(8, melody[melodyIndex], 1000 / noteDurations[melodyIndex]);
    melodyStartTime = currentMillis;
    melodyDuration = 1000 / noteDurations[melodyIndex]; // Durasi note saat ini
    melodyIndex = (melodyIndex + 1) % (sizeof(melody) / sizeof(melody[0])); // Index note berikutnya
    isPlaying = true;
  }
}

void setup() {
  pinMode(8, OUTPUT); // Inisialisasi buzzer di pin 8
  u8g.begin(); // Inisialisasi komunikasi dengan OLED
}

void loop() {
  // Memainkan melodi "Happy Birthday" dan menampilkan tulisan secara bersamaan
  playHappyBirthdayAndDisplay();

  // Menunggu beberapa saat setelah "Happy Birthday!" sebelum menampilkan pesan berikutnya
  if (millis() - previousMillis >= 5000 && displayStatus == 0) {
    displayStatus = 1;
    previousMillis = millis();
  }
}