from machine import Pin
from time import sleep

PIR_PIN = 34
RED_LED_PIN = 12
GREEN_LED_PIN = 14
BUZZER_PIN = 16

SEGMENT_PINS = [23, 22, 21, 19, 18, 5, 17]

pir = Pin(PIR_PIN, Pin.IN)

red_led = Pin(RED_LED_PIN, Pin.OUT)
green_led = Pin(GREEN_LED_PIN, Pin.OUT)
buzzer = Pin(BUZZER_PIN, Pin.OUT)

segments = [Pin(pin, Pin.OUT) for pin in SEGMENT_PINS]

alert = False


def show_s():
    pattern = [0, 1, 0, 0, 1, 0, 0]

    for i in range(7):
        segments[i].value(pattern[i])


def show_a():
    pattern = [0, 0, 0, 1, 0, 0, 0]

    for i in range(7):
        segments[i].value(pattern[i])


def safe():
    show_s()
    green_led.value(1)
    red_led.value(0)
    buzzer.value(0)
    print("Safe")


def alarm():
    show_a()
    green_led.value(0)
    red_led.value(1)
    buzzer.value(1)
    print("Alert")


def motion(pin):
    global alert

    if pin.value() == 1:
        alert = True
    else:
        alert = False


safe()

pir.irq(
    trigger=Pin.IRQ_RISING | Pin.IRQ_FALLING,
    handler=motion
)

while True:
    if alert:
        alarm()
    else:
        safe()

    sleep(0.1)