#!/usr/bin/env bash
set -euo pipefail
set -x

case "${1}" in
  get)
    head -c1 /sys/firmware/acpi/platform_profile | tr '[:lower:]' '[:upper:]'
    ;;
  toggle)
    current="$(cat /sys/firmware/acpi/platform_profile)"
    choices="$(cat /sys/firmware/acpi/platform_profile_choices)"
    next="$(echo "${choices} ${choices}" | tr \  \\n | grep -A1 "${current}" | tail -n+2 | head -n1)"
    echo "${next}" | sudo tee /sys/firmware/acpi/platform_profile
esac