from machine import I2C, Pin, PWM
from time import sleep
import i2c_lcd

# Inisialisasi LCD I2C
i2c = I2C(0, sda=Pin(21), scl=Pin(22), freq=400000)
addr = i2c.scan()[0] if i2c.scan() else 0x27
lcd = i2c_lcd.I2cLcd(i2c, addr, 2, 16)

# Inisialisasi Buzzer
buzzer = PWM(Pin(18))
buzzer.duty(512)

# Nada (Hz)
notes = {
    '1': 261,  # C
    '2': 294,  # D
    '3': 329,  # E
    '4': 349,  # F
    '5': 392,  # G
    '6': 440,  # A
    '7': 494,  # B
    ' ': 0
}

# Lirik dan melodi per baris
lyrics = [
    "Happy Birthday"
    "to You",
    "Happy Birthday" 
    "to You",
    "Happy Birthday" 
    "dear Zakki",
    "Happy Birthday" 
    "to You"
]

melodies = [
    ['5','5','6','5','1','7'],            # Baris 1
    ['5','5','6','5','2','1'],            # Baris 2
    ['5','5','8','5','3','2','1'],        # Baris 3
    ['6','6','5','3','4','3']             # Baris 4
]

beats = [
    [4,4,2,2,2,4],
    [4,4,2,2,2,4],
    [4,4,2,2,2,2,4],
    [4,4,2,2,2,4]
]

def play_line(line, melody, beat):
    lcd.clear()
    lcd.putstr(line)
    for i, note in enumerate(melody):
        freq = notes.get(note, 0)
        dur = beat[i]
        if freq > 0:
            buzzer.freq(freq)
            buzzer.duty(512)
        else:
            buzzer.duty(0)
        sleep(0.4 * (4/dur))
        buzzer.duty(0)
        sleep(0.05)
    sleep(1)

# Main program
while True:
    for i in range(len(lyrics)):
        play_line(lyrics[i], melodies[i], beats[i])
    lcd.clear()
    lcd.putstr("Selesai :)")
    sleep(2)