#!/bin/bash

# omarchy:summary=Enable, disable, or toggle a Hyprland input device
# omarchy:args=<touchpad|touchscreen> [on|off|toggle]
# omarchy:hidden=true

KIND="${1:-}"
ACTION="${2:-toggle}"

usage() {
  echo "Usage: omarchy-toggle-input-device <touchpad|touchscreen> [on|off|toggle]" >&2
}

case "$KIND" in
  touchpad) LABEL="Touchpad" ICON="touchpad" ;;
  touchscreen) LABEL="Touchscreen" ICON="touch" ;;
  *)
    usage
    exit 1
    ;;
esac

# The persisted disable is the device name stored as plain data; on every
# reload default/hypr/disabled-input-device.lua reads it back and disables the
# device. Names come from USB descriptors and must not be interpolated into
# shell or Lua. The path is hardcoded to ~/.local/state like the sibling
# toggle tools, so it keeps working when XDG_STATE_HOME diverges.
NAME_FILE="$HOME/.local/state/omarchy/toggles/hypr/$KIND-disabled-name"

device="$("omarchy-hw-$KIND")"

require_device() {
  if [[ -z $device ]]; then
    echo "No $KIND device found" >&2
    exit 1
  fi

  if [[ $device == *[[:cntrl:]]* ]]; then
    echo "Invalid $KIND device name" >&2
    exit 1
  fi
}

apply_device() {
  local enabled=$1
  local quoted=${device//\\/\\\\}
  quoted=${quoted//\"/\\\"}
  hyprctl eval "hl.device({ name = \"$quoted\", enabled = $enabled })" >/dev/null
}

enable() {
  # Clear the persisted state before requiring a usable device, so a device
  # that stops reporting a valid name can never wedge the disable in place.
  rm -f "$NAME_FILE"
  require_device
  apply_device true
  omarchy-osd -i "$ICON" -m "$LABEL enabled"
}

disable() {
  require_device
  apply_device false
  mkdir -p "$(dirname "$NAME_FILE")"
  printf '%s\n' "$device" >"$NAME_FILE"
  omarchy-osd -i "$ICON" -m "$LABEL disabled"
}

case "$ACTION" in
  on) enable ;;
  off) disable ;;
  toggle) if [[ -f $NAME_FILE ]]; then enable; else disable; fi ;;
  *)
    usage
    exit 1
    ;;
esac