camera_trigger.py

   1 import glob
   2 import os
   3 import time
   4 import trigger
   5 import utils
   6 from datetime import datetime
   7
   8
   9 class any_camera_trigger(trigger.trigger):
  10     def __init__(self):
  11         self.triggers_in_the_past_seven_min = {
  12             "driveway": 0,
  13             "frontdoor": 0,
  14             "cabin_driveway": 0,
  15             "backyard": 0,
  16         }
  17         self.last_trigger = {
  18             "driveway": 0,
  19             "frontdoor": 0,
  20             "cabin_driveway": 0,
  21             "backyard": 0,
  22         }
  23
  24     def choose_priority(self, camera, age):
  25         base_priority_by_camera = {
  26             "driveway": 1,
  27             "frontdoor": 2,
  28             "cabin_driveway": 1,
  29             "backyard": 0,
  30         }
  31         priority = base_priority_by_camera[camera]
  32         if age < 10:
  33             priority += trigger.trigger.PRIORITY_HIGH
  34         elif age < 30:
  35             priority += trigger.trigger.PRIORITY_NORMAL + age
  36         else:
  37             priority += trigger.trigger.PRIORITY_LOW
  38         return priority
  39
  40     def get_triggered_page_list(self):
  41         triggers = []
  42         cameras_with_recent_triggers = 0
  43         camera_list = ["driveway", "frontdoor", "cabin_driveway", "backyard"]
  44
  45         now = time.time()
  46         try:
  47             # First pass, just see whether each camera is triggered and,
  48             # if so, count how many times in the past 7m it has triggered.
  49             for camera in camera_list:
  50                 file = "/timestamps/last_camera_motion_%s" % camera
  51                 ts = os.stat(file).st_ctime
  52                 if ts != self.last_trigger[camera] and (now - ts) < 10:
  53                     print("Camera: %s, age %s" % (camera, (now - ts)))
  54                     self.last_trigger[camera] = ts
  55                     cameras_with_recent_triggers += 1
  56                     self.triggers_in_the_past_seven_min[camera] = 0
  57                     file = "/timestamps/camera_motion_history_%s" % camera
  58                     f = open(file, "r")
  59                     contents = f.readlines()
  60                     f.close()
  61                     for x in contents:
  62                         x.strip()
  63                         age = now - int(x)
  64                         if age < (60 * 7):
  65                             self.triggers_in_the_past_seven_min[camera] += 1
  66
  67             # Second pass, see whether we want to trigger due to
  68             # camera activity we found.  All cameras timestamps were
  69             # just considered and should be up-to-date.  Some logic to
  70             # squelch spammy cameras unless more than one is
  71             # triggered at the same time.
  72             for camera in camera_list:
  73                 if (now - self.last_trigger[camera]) < 10:
  74                     if (
  75                         self.triggers_in_the_past_seven_min[camera] <= 4
  76                         or cameras_with_recent_triggers > 1
  77                     ):
  78                         ts = utils.timestamp()
  79                         p = self.choose_priority(camera, age)
  80                         print(
  81                             (
  82                                 "%s: ****** %s[%d] CAMERA TRIGGER ******"
  83                                 % (ts, camera, p)
  84                             )
  85                         )
  86                         triggers.append(
  87                             (
  88                                 "hidden/%s.html" % camera,
  89                                 self.choose_priority(camera, age),
  90                             )
  91                         )
  92                     else:
  93                         print(
  94                             ("%s: Camera %s too spammy, squelching it" % (ts, camera))
  95                         )
  96         except Exception as e:
  97             print(e)
  98             pass
  99
 100         if len(triggers) == 0:
 101             return None
 102         else:
 103             return triggers
 104
 105
 106 # x = any_camera_trigger()
 107 # print(x.get_triggered_page_list())