Initial revision

1 files changed, 175 insertions, 0 deletions

diff --git a/presence.py b/presence.py
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+++ b/presence.py
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+#!/usr/bin/env python3
+
+import datetime
+from collections import defaultdict
+import enum
+import logging
+import re
+import sys
+from typing import Dict, List
+
+import argparse_utils
+import bootstrap
+import config
+import dict_utils
+import exec_utils
+
+logger = logging.getLogger(__name__)
+
+cfg = config.add_commandline_args(
+    f"Presence Detection ({__file__})",
+    "Args related to detection of human beings in locations.",
+)
+cfg.add_argument(
+    "--presence_macs_file",
+    type=argparse_utils.valid_filename,
+    default = "/home/scott/cron/persisted_mac_addresses.txt",
+    metavar="FILENAME",
+    help="The location of persisted_mac_addresses.txt to use."
+)
+
+
+class Person(enum.Enum):
+    UNKNOWN = 0
+    SCOTT = 1
+    LYNN = 2
+    ALEX = 3
+    AARON_AND_DANA = 4
+    AARON = 4
+    DANA = 4
+
+
[email protected]
+class Location(enum.Enum):
+    UNKNOWN = 0
+    HOUSE = 1
+    CABIN = 2
+
+
+class PresenceDetection(object):
+    def __init__(self) -> None:
+        # Note: list most important devices first.
+        self.devices_by_person: Dict[Person, List[str]] = {
+            Person.SCOTT: [
+                "3C:28:6D:10:6D:41",
+                "D4:61:2E:88:18:09",
+                "6C:40:08:AE:DC:2E",
+                "14:7D:DA:6A:20:D7",
+            ],
+            Person.LYNN: [
+                "08:CC:27:63:26:14",
+                "B8:31:B5:9A:4F:19",
+            ],
+            Person.ALEX: [
+                "0C:CB:85:0C:8B:AE",
+                "D0:C6:37:E3:36:9A",
+            ],
+            Person.AARON_AND_DANA: [
+                "98:B6:E9:E5:5A:7C",
+                "D6:2F:37:CA:B2:9B",
+                "6C:E8:5C:ED:17:26",
+                "90:E1:7B:13:7C:E5",
+                "6E:DC:7C:75:02:1B",
+                "B2:16:1A:93:7D:50",
+                "18:65:90:DA:3A:35",
+                "22:28:C8:7D:3C:85",
+                "B2:95:23:69:91:F8",
+                "96:69:2C:88:7A:C3",
+            ],
+        }
+        self.location_ts_by_mac: Dict[
+            Location, Dict[str, datetime.datetime]
+        ] = defaultdict(dict)
+        self.names_by_mac: Dict[str, str] = {}
+        persisted_macs = config.config['presence_macs_file']
+        self.read_persisted_macs_file(persisted_macs, Location.HOUSE)
+        raw = exec_utils.cmd(
+            "ssh [email protected] 'cat /home/scott/cron/persisted_mac_addresses.txt'"
+        )
+        self.parse_raw_macs_file(raw, Location.CABIN)
+        # os.remove(filename)
+
+    def read_persisted_macs_file(
+        self, filename: str, location: Location
+    ) -> None:
+        if location is Location.UNKNOWN:
+            return
+        with open(filename, "r") as rf:
+            lines = rf.read()
+        self.parse_raw_macs_file(lines, location)
+
+    def parse_raw_macs_file(self, raw: str, location: Location) -> None:
+        lines = raw.split("\n")
+
+        # CC:F4:11:D7:FA:EE, 2240, 10.0.0.22 (side_deck_high_home), Google, 1611681990
+        for line in lines:
+            line = line.strip()
+            if len(line) == 0:
+                continue
+            logger.debug(f'{location}> {line}')
+            try:
+                (mac, count, ip_name, mfg, ts) = line.split(",")
+            except Exception as e:
+                logger.error(f'SKIPPED BAD LINE> {line}')
+                logger.exception(e)
+                continue
+            mac = mac.strip()
+            (self.location_ts_by_mac[location])[
+                mac
+            ] = datetime.datetime.fromtimestamp(int(ts.strip()))
+            ip_name = ip_name.strip()
+            match = re.match(r"(\d+\.\d+\.\d+\.\d+) +\(([^\)]+)\)", ip_name)
+            if match is not None:
+                name = match.group(2)
+                self.names_by_mac[mac] = name
+
+    def is_anyone_in_location_now(self, location: Location) -> bool:
+        for person in Person:
+            if person is not None:
+                loc = self.where_is_person_now(person)
+                if location == loc:
+                    return True
+        return False
+
+    def where_is_person_now(self, name: Person) -> Location:
+        if name is Person.UNKNOWN:
+            return Location.UNKNOWN
+        votes: Dict[Location, int] = {}
+        tiebreaks: Dict[Location, datetime.datetime] = {}
+        credit = 10000
+        for mac in self.devices_by_person[name]:
+            if mac not in self.names_by_mac:
+                continue
+            for location in self.location_ts_by_mac:
+                if mac in self.location_ts_by_mac[location]:
+                    ts = (self.location_ts_by_mac[location])[mac]
+                    tiebreaks[location] = ts
+            location = dict_utils.key_with_min_value(tiebreaks)
+            v = votes.get(location, 0)
+            votes[location] = v + credit
+            credit = int(
+                credit * 0.667
+            )  # Note: list most important devices first
+            if credit == 0:
+                credit = 1
+        if len(votes) > 0:
+            item = dict_utils.item_with_max_value(votes)
+            return item[0]
+        return Location.UNKNOWN
+
+
[email protected]
+def main() -> None:
+    config.parse()
+    p = PresenceDetection()
+
+    for loc in Location:
+        print(f'{loc}: {p.is_anyone_in_location_now(loc)}')
+
+    for u in Person:
+        print(f'{u}: {p.where_is_person_now(u)}')
+    sys.exit(0)
+
+
+if __name__ == '__main__':
+    main()