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

usage() {
  echo "Usage: $0 [on|off|toggle|check]" >&2
}

serv="hypridle.service"

# Returns 0 if the service is active (idle timeouts enabled), 1 otherwise
idle_enabled() {
  systemctl --user is-active --quiet "$serv"
}

mode="toggle"

if [ "$#" -ge 1 ]; then
  if [ "$#" -gt 1 ]; then
    echo "Invalid usage" >&2
    usage
    exit 2
  fi

  case "$1" in
  --help)
    usage
    exit 0
    ;;
  on | off | toggle)
    mode="$1"
    ;;
  check)
    if idle_enabled; then
      exit 0
    else
      exit 1
    fi
    ;;
  *)
    echo "Invalid argument" >&2
    usage
    exit 2
    ;;
  esac
fi

# Determine new mode if toggling
if [ "$mode" = "toggle" ]; then
  mode="$(idle_enabled && echo 'off' || echo 'on')"
fi

# Apply the mode
if [ "$mode" = "off" ]; then
  systemctl --user stop "$serv"
  notify-send "Idle-Toggle" "Idle timeouts disabled" -h string:x-canonical-private-synchronous:idle-toggle
else
  systemctl --user start "$serv"
  notify-send "Idle-Toggle" "Idle timeouts enabled" -h string:x-canonical-private-synchronous:idle-toggle
fi