import time
import machine 
from machine import SoftI2C, Pin, PWM,ADC
from i2c_lcd import I2cLcd
import utime

i2c = SoftI2C(scl=Pin(22), sda=Pin(21), freq=400000)
pwm=PWM(Pin(32),freq=50)
devices = i2c.scan()
adc = ADC(Pin(ldr_sensor_pin))
adc.width(ADC.WIDTH_10BIT)
adc.atten(ADC.ATTN_11DB)
pir_sensor = Pin(16, Pin.IN)

led_verte= Pin(14,Pin.OUT)
led_rouge=Pin(25,Pin.OUT)

for device in devices:
    print("I2C addr: "+hex(device))
    lcd = I2cLcd(i2c, device, 2, 16)

# map entre bouttons et caractères
matrix_keys = [['1', '2', '3', 'A'],
               ['4', '5', '6', 'B'],
               ['7', '8', '9', 'C'],
               ['*', '0', '#', 'D']]

keypad_rows = [19,18,5,17]
keypad_columns = [16,4,0,2]

col_pins = []
row_pins = []

# input de l'utilisateur
guess = []

secret_pin = ['5','2','A','D','1','6']

led = Pin(15, Pin.OUT, Pin.PULL_UP)

for x in range(0,4):
    row_pins.append(Pin(keypad_rows[x], Pin.OUT))
    row_pins[x].value(1)
    col_pins.append(Pin(keypad_columns[x], Pin.IN, Pin.PULL_DOWN))
    col_pins[x].value(0)
    

    
def scankeys():
    lcd.move_to(0, 1)  
    lcd.putstr("code : " + "".join(guess)) 

    for row in range(4):
        for col in range(4):
            row_pins[row].on()
            key_press = None
            
            if col_pins[col].value() == 1:
                print("code:", matrix_keys[row][col])
                key_press = matrix_keys[row][col]
                while col_pins[col].value() == 1:
                    utime.sleep(0.01)  
                utime.sleep(0.1)  
                guess.append(key_press)

            if len(guess) == 6:
                checkPin(guess)
                for _ in range(6):
                    guess.pop()

        row_pins[row].off()


    
#check le code
def checkPin(guess):
             
    if guess == secret_pin:
        lcd.clear()
        lcd.move_to(0,0)
        lcd.putstr("code correct")
        led_verte.on()
        utime.sleep(2)
        lcd.clear()
        lcd.move_to(0,0)
        lcd.putstr("ouverture de la")
        lcd.move_to(0,1)
        lcd.putstr("porte")
        pwm.duty(120)
        utime.sleep(3)
        led_verte.off()
        lcd.clear()
        lcd.putstr("fermeture...")
        utime.sleep(3)
        pwm.duty(75)
        utime.sleep(3)
        lcd.clear()
        
        
    else:
        lcd.clear()
        lcd.putstr("code incorrect")  
        led_rouge.on()
        utime.sleep(3)
        led_rouge.off() 
        lcd.clear()  
        
            
while True:
    
    scankeys()