#!/bin/bash

interval=2

function get {
  unset icon state device

  if bluetoothctl show | grep -q 'Powered: no'; then
    icon="󰂲"
    state="disabled"
    device="Disabled"
  else
    icon="󰂯"
    state="powered"
    device="Not connected"
  fi

  cat << EOF
{"icon": "$icon", "state": "$state", "device": "$device"}
EOF
}

if [[ "$1" == "once" ]]; then
  get
else
  while :; do
  get
  sleep $interval
  done
fi