-- Define the side of the door and the correct password
local doorSide = "left"
local correctPassword = "testing"

-- Variable to track if the door was opened by the computer
local doorOpenedByComputer = false

-- Function to check the door state
local function isDoorOpen()
    return redstone.getInput(doorSide)
end

-- Function to unlock the door
local function unlockDoor()
    redstone.setOutput(doorSide, true)
    doorOpenedByComputer = true  -- Mark that the computer is opening the door
    sleep(2)  -- Keep the door unlocked for 2 seconds
    redstone.setOutput(doorSide, false)
    doorOpenedByComputer = false  -- Reset after closing the door
end

-- Main program loop
while true do
    -- Prompt for the password
    term.clear()
    term.setCursorPos(1, 1)
    print("Enter password to unlock the door:")
    local inputPassword = read("*")  -- Hide input for security

    -- Check if the password is correct
    if inputPassword == correctPassword then
        unlockDoor()
        print("Door unlocked!")
        sleep(3)  -- Wait before clearing the message
    else
        print("Incorrect password!")
        sleep(3)
    end

    -- Check for unauthorized door openings
    if isDoorOpen() and not doorOpenedByComputer then
        term.clear()
        term.setCursorPos(1, 1)
        print("ALERT: Unauthorized door opening detected!")
        sleep(5)  -- Keep the alert message for 5 seconds
    end

    sleep(0.5)  -- Short delay to avoid excessive CPU usage
end