from machine import Pin
from time import sleep
from LCD import CharLCD

bfA = Pin(25, Pin.IN, Pin.PULL_DOWN) #Seguir A
btA = Pin(27, Pin.IN, Pin.PULL_DOWN) #Retroceder A
bfB = Pin(14, Pin.IN, Pin.PULL_DOWN) #Seguir B
btB = Pin(12, Pin.IN, Pin.PULL_DOWN) #Retroceder B

PlA = 0 #Placar A
PlB = 0 #Placar B

botao_ultimo = None

lcd = CharLCD(rs=23, en=21, d4=19, d5=18, d6=5, d7=17, cols=16, rows=2)
lcd.message('Ligado', 2)
sleep(2)

def checar_botao():
    if bfA.value() == 1:
        sleep(0.05)
        if bfA.value() == 1:
            while bfA.value() == 1:
                sleep(0.01)
            return "BFA"
    elif btA.value() == 1:
        sleep(0.05)
        if btA.value() == 1:
            while btA.value() == 1:
                sleep(0.01)
            return "BTA"
    elif bfB.value() == 1:
        sleep(0.05)
        if bfB.value() == 1:
            while bfB.value() == 1:
                sleep(0.01)
            return "BFB"
    elif btB.value() == 1:
        sleep(0.05)
        if btB.value() == 1:
            while btB.value() == 1:
                sleep(0.01)
            return "BTB"
    else:
        return None

def atualizar_display():
    lcd.set_line(0)
    lcd.message(f"{PlA} A x B {PlB}", 2)

lcd.clear()
atualizar_display()

while True:
    botao = checar_botao()
    if botao != botao_ultimo and botao is not None:
        print(botao)
        if botao == "BFA":
            PlA += 1
        elif botao == "BTA":
            if PlA > 0:
                PlA = PlA - 1
        elif botao == "BFB":
            PlB += 1
        elif botao == "BTB":
            if PlB > 0:
                PlB = PlB - 1
        atualizar_display()
    botao_ultimo = botao