broadcast-meeting-status.sh

#!/bin/sh

HOME_NETWORK_NAME="MI WIFI SU WIFI"

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

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 [ "$(currentWifiNetworkName)" != "${HOME_NETWORK_NAME}" ]; then
      echo "Not at home, so not changing lights."
      continue
    fi

    state="$(echo $power_state | awk '{ $2 ; gsub(/;$/,"") ; print $3}')"
    case $state in
      On)
        echo "Camera On: changing light to red"
        shortcuts run "I am on a video call" &
        ;;
      Off)
        echo "Camera Off: changing light to purple"
        shortcuts run "I am off a video call" &
        ;;
      *)
        echo "Should not have reached here!"
        exit 1
        ;;
    esac
  fi
done