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

// Inisialisasi LCD dengan alamat I2C 0x27, ukuran 16x2
LiquidCrystal_I2C lcd(0x27, 16, 2);

// Struktur data lirik
struct Lyric {
  const char* text;
  unsigned long startDelay;  // delay awal sebelum mulai baris (ms)
  unsigned int speed;        // kecepatan ketik per karakter (ms)
};

Lyric lyrics[] = {
  {"Come on over in my direction", 0, 70},
  {"So thankful for that, it's such a blessin', yeah", 2800, 80},
  {"Turn every situation into Heaven, yeah", 5600, 90},
  {"Oh, you are", 8500, 70},
  {"My sunrise on the darkest day", 10200, 80},
  {"Got me feelin' some kind of way", 13000, 90},
  {"Make me wanna savor every moment slowly, slowly", 16200, 120}
};

int totalLyrics = sizeof(lyrics) / sizeof(lyrics[0]);
unsigned long startTime;
int currentLine = 0;
int charIndex = 0;
bool finished = false;

void setup() {
  lcd.init();       // inisialisasi LCD I2C
  lcd.backlight();  // nyalakan lampu latar
  lcd.clear();
  lcd.print("Simulasi Despacito");
  delay(2000);
  lcd.clear();
  startTime = millis();
}

void loop() {
  if (finished) return;

  unsigned long now = millis();

  if (currentLine < totalLyrics) {
    Lyric line = lyrics[currentLine];

    // Tunggu sampai waktu startDelay tercapai
    if (now - startTime >= line.startDelay) {
      // Tampilkan per karakter
      if (charIndex < strlen(line.text)) {
        lcd.print(line.text[charIndex]);
        charIndex++;
        delay(line.speed);
      } else {
        // Ganti ke baris berikutnya setelah selesai
        delay(1000); // jeda antar baris
        lcd.clear();
        charIndex = 0;
        currentLine++;
      }
    }
  } else {
    // Semua lirik selesai
    lcd.clear();
    lcd.print("Akhir lirik!");
    finished = true;
  }
}