from network import WLAN, STA_IF
from time import localtime, sleep_ms
from ntptime import settime
from machine import Pin, I2C
from ssd1306 import SSD1306_I2C

rede = WLAN(STA_IF)
rede.active(True)
if not rede.isconnected():
    rede.connect('Wokwi-GUEST','')
tentativas = 0
while not rede.isconnected() and tentativas <= 20:
   sleep_ms(200)
   tentativas += 1

ts = localtime()
print(ts)

try:
    if rede.isconnected():
        settime()
except OSError as e:
    print ("Deu ruim")
    print (e)
    
ts = localtime()
print(ts)


i2c = I2C(0, scl=Pin(9), sda=Pin(8), freq=400000)  # I2C no ESP32
oled_width = 128
oled_height = 64
oled = SSD1306_I2C(oled_width, oled_height, i2c)

def mostrarTimestamp():
    ts = localtime()
    oled.fill(0)  # Limpa o display

    m = f"{ts[3]:02d}:{ts[4]:02d}:{ts[5]:02d}"
    pos_x = (oled_width - len(m) * 6) // 2 # Cada caractere tem 6 pixels de largura
    oled.text(m, pos_x, 10)  # Escreve no display

    m = f"{ts[2]:02d}/{ts[1]:02d}/{ts[0]:04d}"
    pos_x = (oled_width - len(m) * 6) // 2 # Cada caractere tem 6 pixels de largura
    oled.text(m, pos_x, 20)  # Escreve no display
    oled.show() 


while True:
    mostrarTimestamp()
    sleep_ms(500)