from machine import Pin, SoftI2C, PWM
import ssd1306
import network
import ntptime
import utime

WIFI_SSID = 'Wokwi-GUEST'
WIFI_PASS = ''

a_h = 17
a_m = 31
a_d = 10

timezone = 2

buzzer = PWM(Pin(14))
buzzer.duty(0)

i2c = SoftI2C(sda=Pin(21), scl=Pin(22))
oled = ssd1306.SSD1306_I2C(128, 64, i2c)

def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(WIFI_SSID, WIFI_PASS)
    oled.fill(0)
    oled.text('WiFi...', 0, 0)
    oled.show()
    while not wlan.isconnected():
        utime.sleep(0.5)

def sync_time():
    oled.fill(0)
    oled.text("Sync time...", 0, 0)
    oled.show()
    ntptime.settime()

def beep(seconds):
    end = utime.time() + seconds
    while utime.time() < end:
        buzzer.freq(2000)
        buzzer.duty(512)
        utime.sleep(0.2)
        buzzer.duty(0)
        utime.sleep(0.2)

connect_wifi()
sync_time()

alarm_triggered = False

while True:
    t = utime.localtime(utime.time() + timezone * 3600)
    h, m, s = t[3], t[4], t[5]

    oled.fill(0)
    oled.text("CLOCK", 40, 0)
    oled.text("{:02d}:{:02d}:{:02d}".format(h, m, s), 25, 25)
    oled.text("Alarm {:02d}:{:02d}".format(a_h, a_m), 10, 50)
    oled.show()

    if h == a_h and m == a_m and not alarm_triggered:
        beep(a_d)
        alarm_triggered = True

    if m != a_m:
        alarm_triggered = False

    utime.sleep(1)