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"""Shelly Gen2 BLE support."""
from __future__ import annotations
import logging
from binascii import a2b_base64
from typing import Any
from bluetooth_data_tools import parse_advertisement_data_tuple
BLEGAPAdvertisementTupleType = tuple[
str | None, list[str], dict[str, bytes], dict[int, bytes], int | None
]
LOGGER = logging.getLogger(__name__)
def parse_ble_scan_result_event(
data: list[Any],
) -> list[tuple[str, int, BLEGAPAdvertisementTupleType]]:
"""Parse BLE scan result event."""
version: int = data[0]
if version == 1:
return _parse_v1(data)
if version == 2: # noqa: PLR2004
return _parse_v2(data[1])
raise ValueError(f"Unsupported BLE scan result version: {version}")
def _parse_v1(adv: list[Any]) -> list[tuple[str, int, BLEGAPAdvertisementTupleType]]:
"""Convert v1 format to a list of ble tuples."""
_, address, rssi, advertisement_data_b64, scan_response_b64 = adv
return [
(
address.upper(),
rssi,
parse_advertisement_data_tuple(
(
a2b_base64(advertisement_data_b64.encode("ascii")),
a2b_base64(scan_response_b64.encode("ascii")),
)
),
)
]
def _parse_v2(
advs: list[list[Any]],
) -> list[tuple[str, int, BLEGAPAdvertisementTupleType]]:
"""Convert v2 format to a list of ble tuples."""
return [
(
address.upper(),
rssi,
parse_advertisement_data_tuple(
(
a2b_base64(advertisement_data_b64.encode("ascii")),
a2b_base64(scan_response_b64.encode("ascii")),
)
),
)
for address, rssi, advertisement_data_b64, scan_response_b64 in advs
]
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