from machine import Pin, I2C, ADC, PWM
import utime
import math

# --- Donanım Tanımları ---
i2c = I2C(0, scl=Pin(1), sda=Pin(0))  # RTC DS1307 için I2C
rtc_address = 0x68

led = Pin(3, Pin.OUT)
buzzer = PWM(Pin(4))  # PWM kullanarak ses çıkarabiliriz
button = Pin(2, Pin.IN, Pin.PULL_UP)
pot = ADC(Pin(26))

alarm_hour = 0
alarm_minute = 0
alarm_active = False
alarm_triggered = False

# Mario müziği için notalar ve frekanslar
NOTES = [
     392, 392, 392, 311, 466, 392, 311, 466, 392,
    587, 587, 587, 622, 466, 369, 311, 466, 392,
    392, 392, 392, 311, 466, 392, 311, 466, 392,
    784, 392, 392, 784, 740, 698, 659, 622, 659,
    415, 554, 523, 493, 466, 440, 466,
    392, 466, 440, 466, 392, 392, 392, 392
]

DURATIONS = [
    300, 300, 300, 150, 150, 300, 150, 150, 600,
    300, 300, 300, 150, 150, 300, 150, 150, 600,
    300, 300, 300, 150, 150, 300, 150, 150, 600,
    150, 300, 150, 150, 150, 150, 150, 150, 300,
    150, 150, 150, 150, 150, 150, 300,
    150, 150, 150, 150, 150, 150, 150, 600
]

# --- Yardımcı Fonksiyonlar ---
def bcd2dec(bcd):
    return (bcd // 16) * 10 + (bcd % 16)

def read_time():
    try:
        data = i2c.readfrom_mem(rtc_address, 0x00, 7)
        second = bcd2dec(data[0] & 0x7F)
        minute = bcd2dec(data[1])
        hour = bcd2dec(data[2])
        weekday = bcd2dec(data[3])
        day = bcd2dec(data[4])
        month = bcd2dec(data[5])
        year = bcd2dec(data[6]) + 2000
        return (year, month, day, weekday, hour, minute, second, 0)
    except Exception as e:
        print("RTC okunamadı:", e)
        return (2000, 1, 1, 0, 0, 0, 0, 0)

def read_alarm_from_pot():
    global alarm_hour, alarm_minute
    val = pot.read_u16()
    total_minutes = int((val / 65535) * 1439)  # 24*60-1 = 1439
    alarm_hour = total_minutes // 60
    alarm_minute = total_minutes % 60

def check_alarm(now):
    global alarm_active, alarm_triggered
    year, month, day, weekday, hour, minute, second, _ = now
    if hour == alarm_hour and minute == alarm_minute and second == 0:
        if not alarm_triggered:  # Alarm yeni tetiklendi
            alarm_active = True
            alarm_triggered = True
    elif alarm_triggered and (hour != alarm_hour or minute != alarm_minute):
        alarm_triggered = False  # Alarm zamanı geçti, resetle

def play_song():
    for i in range(len(NOTES)):
        if not alarm_active:  # Alarm durdurulduysa çalmayı kes
            break
        if NOTES[i] == 0:
            buzzer.duty_u16(0)  # Sesi kapat
        else:
            buzzer.freq(NOTES[i])
            buzzer.duty_u16(32767)  # %50 duty cycle
        utime.sleep_ms(DURATIONS[i])
    buzzer.duty_u16(0)  # Sesi kapat

def trigger_alarm():
    global alarm_active
    led.on()
    play_song()  # Mario müziğini çal
    
    # Eğer alarm hala aktifse (butona basılmadıysa) tekrar çal
    if alarm_active:
        utime.sleep(0.1)
        trigger_alarm()

def stop_alarm(pin):
    global alarm_active
    alarm_active = False
    led.off()
    buzzer.duty_u16(0)  # Sesi kapat

button.irq(trigger=Pin.IRQ_FALLING, handler=stop_alarm)

# --- E-Paper Display Fonksiyonları ---
def update_display(now, alarm_set, alarm_status):
    # Bu fonksiyon e-paper display güncellemesi yapacak
    # Wokwi'de print ile simüle ediyoruz
    year, month, day, weekday, hour, minute, second, _ = now
    print("\n" + "="*20)
    print(f"Şu anki zaman: {hour:02}:{minute:02}:{second:02}")
    print(f"Alarm Zamanı: {alarm_set[0]:02}:{alarm_set[1]:02}")
    print(f"Durum: {alarm_status}")
    print("="*20 + "\n")

# --- Ana Döngü ---
while True:
    now = read_time()
    read_alarm_from_pot()
    check_alarm(now)
    
    # Display güncelleme
    if alarm_active:
        update_display(now, (alarm_hour, alarm_minute), "ALARM ÇALIYOR!")
    else:
        if alarm_triggered:
            update_display(now, (alarm_hour, alarm_minute), "Alarm Durduruldu")
        else:
            update_display(now, (alarm_hour, alarm_minute), "Beklemede")

    if alarm_active:
        trigger_alarm()

    utime.sleep(0.1)  # Daha hassas kontrol için bekleme süresini kısalttık