tally-light.sh

#!/bin/sh
#
# ## Setup
#
# Install hueadm:
#
# ```bash
# npm install -g hueadm
# ```
#
# Discover available bridges:
#
# ```bash
# hueadm discover
# ```
#
# Record the IP address of the bridge.
# In the following example, we use 192.168.1.20 as the IP address of the bridge.
#
# Register a new user:
#
# ```
# hueadm -H 192.168.1.20 register $(whoami)
# ```
#
# Take the above output from `hueadm`, and add to config file:
#
# echo '{"user":"12aosnt4123stGH12DAoeSNa2-arhjGAo4Heao", "host": "192.168.88.250" }' > ~/.hueadm.json
#


HOME_NETWORK_NAME="INSERT YOUR NETWORK NAME HERE"
HOME_PUBLIC_IP="xxx.xxx.xxx.xxx"
currentPublicIP=$(curl -s -4 https://ifconfig.me)
LIGHT_ID=1 # get from running: hueadm lights -l

function currentWifiNetworkName() {
  /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I | awk -F: '($1 ~ "^ *SSID$"){print $2}' | cut -c 2-
}

notAtHome () {
  if [ $currentPublicIP != "${HOME_PUBLIC_IP}" ]; then
    return 0
  fi
  return 1
}

cleanup () {
  hueadm light ${LIGHT_ID} yellow bri=220 > /dev/null
  exit
}

camera_on_action () {
  echo "$(date | tr -d '\n'): Camera On:  changing light to red"
  hueadm light ${LIGHT_ID} 'red' bri=220 > /dev/null
}

camera_off_action () {
  echo "$(date | tr -d '\n'): Camera Off: changing light to green"
  hueadm light ${LIGHT_ID} 'green' bri=220 > /dev/null
}

if notAtHome ; then
  echo "Not at home, so not changing lights."
else
  hueadm light ${LIGHT_ID} 'purple' bri=220 > /dev/null
fi

trap cleanup EXIT

# First boot
last_camera_state="$(log show --last 24h --predicate 'subsystem contains "com.apple.UVCExtension" and composedMessage contains "Post PowerLog"' | grep VDCAssistant_Power_State | tail -n 1 | awk '{ $2 ; gsub(/;$/,"") ; print $3}')"
case $last_camera_state in
  On)
    camera_on_action
    ;;
  Off)
    camera_off_action
    ;;
  *)
    echo "Should not have reached here!"
    exit 1
    ;;
esac

# The loop
log stream --predicate 'subsystem contains "com.apple.UVCExtension" and composedMessage contains "Post PowerLog"' |
while read event; do
  power_state=$(echo $event | grep VDCAssistant_Power_State)
  if [ -n "$power_state" ]; then

    if notAtHome ; then
      echo "Not at home, so not changing lights."
      continue
    fi

    hour=$(date +%k)
    if [[ $hour -lt 7 ]]; then
      echo "Not working, so not changing the lights."
      continue
    fi

    state="$(echo $power_state | awk '{ $2 ; gsub(/;$/,"") ; print $3}')"
    case $state in
      On)
        camera_on_action
        ;;
      Off)
        camera_off_action
        ;;
      *)
        echo "Should not have reached here!"
        exit 1
        ;;
    esac
  fi
done