from machine import Pin, PWM
import time

# --- HARDWARE SETUP ---
door_button = Pin(15, Pin.IN, Pin.PULL_UP)
report_button = Pin(18, Pin.IN, Pin.PULL_UP)

led = Pin(2, Pin.OUT)

buzzer = PWM(Pin(4))
buzzer.freq(1000)
buzzer.duty(0)

print("=== MicroPython Door Intrusion Monitor ===")
print("Press Door Button = OPEN/CLOSE")
print("Press Report Button = Generate Report")

door_state = "CLOSED"
open_timestamp = 0

total_open_time = 0
open_count = 0

THRESHOLD_TIME = 0   # seconds

while True:

    door_pressed = (door_button.value() == 0)
    report_pressed = (report_button.value() == 0)

    # -------- DOOR OPEN --------
    if door_pressed and door_state == "CLOSED":
        door_state = "OPEN"
        open_timestamp = time.time()
        open_count += 1

        led.value(1)

        print("🔴 LED ON")
        print("Door Opened")

    # -------- DOOR CLOSE --------
    elif not door_pressed and door_state == "OPEN":
        door_state = "CLOSED"

        duration = time.time() - open_timestamp
        total_open_time += duration

        led.value(0)
        buzzer.duty(0)   # STOP buzzer immediately

        print("🟢 LED OFF | 🔕 Buzzer OFF")
        print("Door Closed")
        print("Duration:", round(duration,2), "seconds")

    # -------- THRESHOLD ALERT --------
    if door_state == "OPEN":
        duration = time.time() - open_timestamp

        if duration > THRESHOLD_TIME:
            buzzer.duty(512)

    # -------- REPORT --------
    if report_pressed:
        print("\n===== REPORT =====")
        print("Total Opens:", open_count)
        print("Total Open Time:", round(total_open_time,2), "seconds")

        if open_count > 0:
            print("Average Open Time:", round(total_open_time / open_count,2))

        print("==================\n")

        time.sleep(1)

    time.sleep(0.05)