smart_home/registry.py

   1 #!/usr/bin/env python3
   2
   3 import logging
   4 import re
   5 from typing import List, Optional, Set
   6
   7 import argparse_utils
   8 import config
   9 import file_utils
  10 import logical_search
  11 import smart_home.device as device
  12 import smart_home.cameras as cameras
  13 import smart_home.chromecasts as chromecasts
  14 import smart_home.lights as lights
  15 import smart_home.outlets as outlets
  16
  17 args = config.add_commandline_args(
  18     f"Smart Home Registry ({__file__})",
  19     "Args related to the smart home configuration registry."
  20 )
  21 args.add_argument(
  22     '--smart_home_registry_file_location',
  23     default='/home/scott/bin/network_mac_addresses.txt',
  24     metavar='FILENAME',
  25     help='The location of network_mac_addresses.txt',
  26     type=argparse_utils.valid_filename,
  27 )
  28
  29
  30 logger = logging.getLogger(__file__)
  31
  32
  33 class SmartHomeRegistry(object):
  34     def __init__(
  35             self,
  36             registry_file: Optional[str] = None,
  37             filters: List[str] = ['smart'],
  38     ) -> None:
  39         self._macs_by_name = {}
  40         self._keywords_by_name = {}
  41         self._keywords_by_mac = {}
  42         self._names_by_mac = {}
  43         self._corpus = logical_search.Corpus()
  44
  45         # Read the disk config file...
  46         if registry_file is None:
  47             registry_file = config.config[
  48                 'smart_home_registry_file_location'
  49             ]
  50         assert file_utils.does_file_exist(registry_file)
  51         logger.debug(f'Reading {registry_file}')
  52         with open(registry_file, "r") as f:
  53             contents = f.readlines()
  54
  55         # Parse the contents...
  56         for line in contents:
  57             line = line.rstrip("\n")
  58             line = re.sub(r"#.*$", r"", line)
  59             line = line.strip()
  60             if line == "":
  61                 continue
  62             logger.debug(f'SH-CONFIG> {line}')
  63             try:
  64                 (mac, name, keywords) = line.split(",")
  65             except ValueError:
  66                 logger.warning(f'SH-CONFIG> {line} is malformed?!')
  67                 continue
  68             mac = mac.strip()
  69             name = name.strip()
  70             keywords = keywords.strip()
  71
  72             skip = False
  73             if filters is not None:
  74                 for f in filters:
  75                     if f not in keywords:
  76                         logger.debug(f'Skipping this entry b/c of filter {f}')
  77                         skip = True
  78                         break
  79             if not skip:
  80                 self._macs_by_name[name] = mac
  81                 self._keywords_by_name[name] = keywords
  82                 self._keywords_by_mac[mac] = keywords
  83                 self._names_by_mac[mac] = name
  84                 self.index_device(name, keywords, mac)
  85
  86     def index_device(self, name: str, keywords: str, mac: str) -> None:
  87         properties = [("name", name)]
  88         tags = set()
  89         for kw in keywords.split():
  90             if ":" in kw:
  91                 key, value = kw.split(":")
  92                 properties.append((key, value))
  93             else:
  94                 tags.add(kw)
  95         device = logical_search.Document(
  96             docid=mac,
  97             tags=tags,
  98             properties=properties,
  99             reference=None,
 100         )
 101         logger.debug(f'Indexing document {device}')
 102         self._corpus.add_doc(device)
 103
 104     def __repr__(self) -> str:
 105         s = "Known devices:\n"
 106         for name, keywords in self._keywords_by_name.items():
 107             mac = self._macs_by_name[name]
 108             s += f"  {name} ({mac}) => {keywords}\n"
 109         return s
 110
 111     def get_keywords_by_name(self, name: str) -> Optional[device.Device]:
 112         return self._keywords_by_name.get(name, None)
 113
 114     def get_macs_by_name(self, name: str) -> Set[str]:
 115         retval = set()
 116         for (mac, lname) in self._names_by_mac.items():
 117             if name in lname:
 118                 retval.add(mac)
 119         return retval
 120
 121     def get_macs_by_keyword(self, keyword: str) -> Set[str]:
 122         retval = set()
 123         for (mac, keywords) in self._keywords_by_mac.items():
 124             if keyword in keywords:
 125                 retval.add(mac)
 126         return retval
 127
 128     def get_device_by_name(self, name: str) -> Optional[device.Device]:
 129         if name in self._macs_by_name:
 130             return self.get_device_by_mac(self._macs_by_name[name])
 131         return None
 132
 133     def get_all_devices(self) -> List[device.Device]:
 134         retval = []
 135         for (mac, kws) in self._keywords_by_mac.items():
 136             if mac is not None:
 137                 device = self.get_device_by_mac(mac)
 138                 if device is not None:
 139                     retval.append(device)
 140         return retval
 141
 142     def get_device_by_mac(self, mac: str) -> Optional[device.Device]:
 143         if mac in self._keywords_by_mac:
 144             name = self._names_by_mac[mac]
 145             kws = self._keywords_by_mac[mac]
 146             logger.debug(f'Found {name} -> {mac} ({kws})')
 147             try:
 148                 if 'light' in kws.lower():
 149                     if 'tplink' in kws.lower():
 150                         logger.debug('    ...a TPLinkLight')
 151                         return lights.TPLinkLight(name, mac, kws)
 152                     elif 'tuya' in kws.lower():
 153                         logger.debug('    ...a TuyaLight')
 154                         return lights.TuyaLight(name, mac, kws)
 155                     elif 'goog' in kws.lower():
 156                         logger.debug('    ...a GoogleLight')
 157                         return lights.GoogleLight(name, mac, kws)
 158                     else:
 159                         raise Exception(f'Unknown light device: {name}, {mac}, {kws}')
 160                 elif 'outlet' in kws.lower():
 161                     if 'tplink' in kws.lower():
 162                         if 'children' in kws.lower():
 163                             logger.debug('    ...a TPLinkOutletWithChildren')
 164                             return outlets.TPLinkOutletWithChildren(name, mac, kws)
 165                         else:
 166                             logger.debug('    ...a TPLinkOutlet')
 167                             return outlets.TPLinkOutlet(name, mac, kws)
 168                     elif 'meross' in kws.lower():
 169                         logger.debug('    ...a MerossOutlet')
 170                         return outlets.MerossOutlet(name, mac, kws)
 171                     elif 'goog' in kws.lower():
 172                         logger.debug('    ...a GoogleOutlet')
 173                         return outlets.GoogleOutlet(name, mac, kws)
 174                     else:
 175                         raise Exception(f'Unknown outlet device: {name}, {mac}, {kws}')
 176                 elif 'camera' in kws.lower():
 177                     logger.debug('    ...a BaseCamera')
 178                     return cameras.BaseCamera(name, mac, kws)
 179                 elif 'ccast' in kws.lower():
 180                     logger.debug('    ...a Chromecast')
 181                     return chromecasts.BaseChromecast(name, mac, kws)
 182                 else:
 183                     logger.debug('    ...an unknown device (should this be here?)')
 184                     return device.Device(name, mac, kws)
 185             except Exception as e:
 186                 logger.warning(
 187                     f'Got exception {e} while trying to communicate with device {name}/{mac}.'
 188                 )
 189                 return device.Device(name, mac, kws)
 190         logger.warning(f'{mac} is not a known smart home device, returning None')
 191         return None
 192
 193     def query(self, query: str) -> List[device.Device]:
 194         """Evaluates a lighting query expression formed of keywords to search
 195         for, logical operators (and, or, not), and parenthesis.
 196         Returns a list of matching lights.
 197         """
 198         retval = []
 199         logger.debug(f'Executing query {query}')
 200         results = self._corpus.query(query)
 201         if results is not None:
 202             for mac in results:
 203                 if mac is not None:
 204                     device = self.get_device_by_mac(mac)
 205                     if device is not None:
 206                         retval.append(device)
 207         return retval