"""

Detection callback w/ scanner

--------------

Example showing what is returned using the callback upon detection functionality

Updated on 2020-10-11 by bernstern <bernie@allthenticate.net>

"""

import argparse

import asyncio

import logging

from bleak import BleakScanner

from bleak.backends.device import BLEDevice

from bleak.backends.scanner import AdvertisementData

logger = logging.getLogger(__name__)

class Args(argparse.Namespace):

macos_use_bdaddr: bool

services: list[str]

debug: bool

def simple_callback(device: BLEDevice, advertisement_data: AdvertisementData):

logger.info(

"addr: %s, name: %s, %r", device.address, device.name, advertisement_data

)

async def main(args: Args):

scanner = BleakScanner(

simple_callback, args.services, cb={"use_bdaddr": args.macos_use_bdaddr}

)

while True:

logger.info("(re)starting scanner")

async with scanner:

await asyncio.sleep(5.0)

if __name__ == "__main__":

parser = argparse.ArgumentParser()

parser.add_argument(

"--macos-use-bdaddr",

action="store_true",

help="when true use Bluetooth address instead of UUID on macOS",

)

parser.add_argument(

"--services",

metavar="<uuid>",

nargs="*",

help="UUIDs of one or more services to filter for",

)

parser.add_argument(

"-d",

"--debug",

action="store_true",

help="sets the logging level to debug",

)

args = parser.parse_args(namespace=Args())

log_level = logging.DEBUG if args.debug else logging.INFO

logging.basicConfig(

level=log_level,

format="%(asctime)-15s %(name)-8s %(levelname)s: %(message)s",

)

asyncio.run(main(args))