go/r3-eventbroker_zmq/presence.go

   1 // (c) Bernhard Tittelbach, 2013
   2
   3 package main
   4
   5 import (
   6     "time"
   7     //~ "./brain"
   8     pubsub "github.com/tuxychandru/pubsub"
   9     r3events "svn.spreadspace.org/realraum/go.svn/r3events"
  10     )
  11
  12 func MetaEventRoutine_Presence(ps *pubsub.PubSub, movement_timeout, button_timeout int64) {
  13     var last_door_cmd *r3events.DoorCommandEvent
  14     var last_presence bool
  15     var last_event_indicating_presence, last_frontlock_use int64
  16     var front_locked, front_shut, back_shut bool = true, true, true
  17
  18     events_chan := ps.Sub("door", "doorcmd", "buttons", "movement")
  19     defer ps.Unsub(events_chan, "door", "doorcmd", "buttons", "movement")
  20
  21     for event := range(events_chan) {
  22         Debug_.Printf("Presence prior: %t : %T %+v", last_presence, event, event)
  23         new_presence := last_presence
  24         ts := time.Now().Unix()
  25         switch evnt := event.(type) {
  26             case r3events.SomethingReallyIsMoving:
  27                 if evnt.Movement {
  28                     //ignore movements that happened just after locking door
  29                     if (evnt.Ts - last_event_indicating_presence) > movement_timeout {
  30                         new_presence = true
  31                     }
  32                     last_event_indicating_presence = evnt.Ts
  33                 } else {
  34                     if last_presence { Syslog_.Printf("Presence: Mhh, SomethingReallyIsMoving{%+v} received but presence still true. Quite still a bunch we have here.", evnt) }
  35                     if front_locked && front_shut && back_shut && evnt.Confidence >= 20 && last_event_indicating_presence > 1800 {
  36                         new_presence = false
  37                     }
  38                 }
  39             case r3events.BoreDoomButtonPressEvent:
  40                 new_presence = true
  41                 last_event_indicating_presence = evnt.Ts
  42             case r3events.DoorCommandEvent:
  43                 last_door_cmd = &evnt
  44             case r3events.DoorLockUpdate:
  45                 front_locked = evnt.Locked
  46                 last_frontlock_use = evnt.Ts
  47                 last_event_indicating_presence = evnt.Ts
  48             case r3events.DoorAjarUpdate:
  49                 if front_shut == false && evnt.Shut && front_locked && evnt.Ts - last_frontlock_use > 2 {
  50                     Syslog_.Print("Presence: ignoring frontdoor ajar event, since obviously someone is fooling around with the microswitch while the door is still open")
  51                 } else {
  52                     front_shut = evnt.Shut
  53                 }
  54                 last_event_indicating_presence = evnt.Ts
  55             case r3events.BackdoorAjarUpdate:
  56                 back_shut = evnt.Shut
  57                 last_event_indicating_presence = evnt.Ts
  58         }
  59
  60         any_door_unlocked := (front_locked == false)
  61         any_door_ajar := ! (front_shut && back_shut)
  62
  63         if new_presence != last_presence {
  64             //... skip state check .. we had a definite presence event
  65         } else if any_door_unlocked || any_door_ajar {
  66             new_presence = true
  67         } else if last_door_cmd.Using == "Button" {
  68             new_presence = true
  69         } else {
  70             new_presence = false
  71         }
  72         //~ Debug_.Printf("Presence: new: %s , last:%s", new_presence, last_presence)
  73         if new_presence != last_presence {
  74             last_presence = new_presence
  75             ps.Pub(r3events.PresenceUpdate{new_presence, ts} , "presence")
  76         }
  77     }
  78 }