Reads the HA websocket API for updates to certain devices from command line

ha-websocket-reader.sh

#!/bin/bash

# Requires jq binary
# Requires websocat binary

source ~/.profile

SERVER="wss://XXXXXX.ui.nabu.casa/api/websocket"
ENTITY1="input_boolean.adamo_meeting"
ENTITY2="input_boolean.work_auto_lock"
ENTITY3="binary_sensor.work_headset"

read -r -d '' ASK <<EOF
{"type": "auth", "access_token": "${BEARER}"}
{"id": 1, "type": "subscribe_trigger", "trigger": { "platform": "state", "entity_id": "${ENTITY1}" }}
{"id": 2, "type": "subscribe_trigger", "trigger": { "platform": "state", "entity_id": "${ENTITY2}" }}
{"id": 3, "type": "subscribe_trigger", "trigger": { "platform": "state", "entity_id": "${ENTITY3}" }}
EOF

myfunc() {
  local line
  while IFS= read -r line; do
    json=$(echo "$line" | jq '.event?')
    if [[ $json != "null" ]]; then
      entity_id=$(echo "$json" | jq -r '.variables.trigger.to_state.entity_id')
      to_state=$(echo "$json" | jq -r '.variables.trigger.to_state.state')

      echo "$json" | jq '.variables.trigger.to_state'

      # BTT meeting context is on customVariable1
      customVariable=1

      # BTT lock context is on customVariable2
      if [[ $entity_id == "input_boolean.work_auto_lock" ]]; then
        customVariable=2
      elif [[ $entity_id == "binary_sensor.work_headset" ]]; then
        customVariable=3
      fi

      # Sync contextual changes to Better Touch Tool conditions locally on mac
      curl -s "http://localhost:57109/set_string_variable/?variableName=customVariable${customVariable}&to=${to_state}" >/dev/null
    fi
  done
}

while true; do
  echo "$ASK"
  sleep 1
done | websocat $SERVER | myfunc