#!/usr/bin/env bash
set -euo pipefail
status() { bluetoothctl show 2>/dev/null | awk '/Powered:/ {print tolower($2); exit}'; } # yes/no
print() {
  s="$(status)"; s="${s:-no}"
  if [ "$s" = "yes" ]; then
    echo '{"text":"","class":"on","tooltip":"Bluetooth: on (click to toggle)"}'
  else
    echo '{"text":"","class":"off","tooltip":"Bluetooth: off (click to toggle)"}'
  fi
}
case "${1:---print}" in
  --toggle) [ "$(status)" = "yes" ] && bluetoothctl power off || bluetoothctl power on ;;
  --print) : ;;
  *) echo "Usage: $0 [--toggle|--print]"; exit 1 ;;
esac
print