|
| 1 | +"""Discover switchbot devices.""" |
| 2 | + |
| 3 | +from __future__ import annotations |
| 4 | + |
| 5 | +import asyncio |
| 6 | +import logging |
| 7 | + |
| 8 | +import bleak |
| 9 | +from bleak.backends.device import BLEDevice |
| 10 | +from bleak.backends.scanner import AdvertisementData |
| 11 | + |
| 12 | +from cometblue import * |
| 13 | + |
| 14 | +_LOGGER = logging.getLogger(__name__) |
| 15 | +CONNECT_LOCK = asyncio.Lock() |
| 16 | + |
| 17 | +DEFAULT_SCAN_TIMEOUT = 5 |
| 18 | +DEFAULT_RETRY_COUNT = 3 |
| 19 | +DEFAULT_RETRY_TIMEOUT = 1 |
| 20 | + |
| 21 | +class GetSwitchbotDevices: |
| 22 | + """Scan for all Switchbot devices and return by type.""" |
| 23 | + |
| 24 | + def __init__(self, interface: int = 0) -> None: |
| 25 | + """Get switchbot devices class constructor.""" |
| 26 | + self._interface = f"hci{interface}" |
| 27 | + self._adv_data: dict[str, AdvertisementData] = {} |
| 28 | + |
| 29 | + def detection_callback( |
| 30 | + self, |
| 31 | + device: BLEDevice, |
| 32 | + advertisement_data: AdvertisementData, |
| 33 | + ) -> None: |
| 34 | + """Callback for device detection.""" |
| 35 | + discovery = advertisement_data #parse_advertisement_data(device, advertisement_data) |
| 36 | + #print(discovery.local_name) |
| 37 | + if discovery and device.name == "Comet Blue": |
| 38 | + print(device.metadata) |
| 39 | + print(device.address) |
| 40 | + print(discovery.service_data) |
| 41 | + print(discovery.service_uuids) |
| 42 | + print(discovery.manufacturer_data) |
| 43 | + |
| 44 | + #self._adv_data[discovery.address] = discovery |
| 45 | + |
| 46 | + async def discover( |
| 47 | + self, retry: int = DEFAULT_RETRY_COUNT, scan_timeout: int = DEFAULT_SCAN_TIMEOUT |
| 48 | + ) -> dict: |
| 49 | + """Find switchbot devices and their advertisement data.""" |
| 50 | + |
| 51 | + devices = None |
| 52 | + devices = bleak.BleakScanner( |
| 53 | + # TODO: Find new UUIDs to filter on. For example, see |
| 54 | + # https://github.com/OpenWonderLabs/SwitchBotAPI-BLE/blob/4ad138bb09f0fbbfa41b152ca327a78c1d0b6ba9/devicetypes/meter.md |
| 55 | + adapter=self._interface, |
| 56 | + ) |
| 57 | + devices.register_detection_callback(self.detection_callback) |
| 58 | + |
| 59 | + async with CONNECT_LOCK: |
| 60 | + await devices.start() |
| 61 | + await asyncio.sleep(scan_timeout) |
| 62 | + await devices.stop() |
| 63 | + |
| 64 | + if devices is None: |
| 65 | + if retry < 1: |
| 66 | + _LOGGER.error( |
| 67 | + "Scanning for Switchbot devices failed. Stop trying", exc_info=True |
| 68 | + ) |
| 69 | + return self._adv_data |
| 70 | + |
| 71 | + _LOGGER.warning( |
| 72 | + "Error scanning for Switchbot devices. Retrying (remaining: %d)", |
| 73 | + retry, |
| 74 | + ) |
| 75 | + await asyncio.sleep(DEFAULT_RETRY_TIMEOUT) |
| 76 | + return await self.discover(retry - 1, scan_timeout) |
| 77 | + |
| 78 | + return self._adv_data |
| 79 | + |
| 80 | + async def _get_devices_by_model( |
| 81 | + self, |
| 82 | + model: str, |
| 83 | + ) -> dict: |
| 84 | + """Get switchbot devices by type.""" |
| 85 | + if not self._adv_data: |
| 86 | + await self.discover() |
| 87 | + |
| 88 | + return { |
| 89 | + address: adv |
| 90 | + for address, adv in self._adv_data.items() |
| 91 | + if adv.data.get("model") == model |
| 92 | + } |
| 93 | + |
| 94 | + |
| 95 | + async def get_device_data( |
| 96 | + self, address: str |
| 97 | + ) -> dict[str, AdvertisementData] | None: |
| 98 | + """Return data for specific device.""" |
| 99 | + if not self._adv_data: |
| 100 | + await self.discover() |
| 101 | + |
| 102 | + return { |
| 103 | + device: adv |
| 104 | + for device, adv in self._adv_data.items() |
| 105 | + # MacOS uses UUIDs instead of MAC addresses |
| 106 | + if adv.data.get("address") == address |
| 107 | + } |
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