#!/bin/sh

device_name="$(xinput list | grep '↳' | sed 's/.*↳ //g' | fzf)"
[ -n "$device_name" ] && device_id="$(xinput list | grep -F "↳ $device_name" | sed -n 's/.*id=\([0-9]\+\).*/\1/p')" || exit

show_matrix() {
  printf "%s\n" "$(xinput list-props "$device_id" | awk '/Coordinate Transformation Matrix/{print $0}' | sed 's/^[[:space:]]*//g')"
}

# Function to set new speed and scrolling speed values
set_speeds() {
  printf "Set trackpoint speed: "
  read -r speed

  printf "Set trackpoint scrolling speed: "
  read -r scroll_speed

  prop_id=$(xinput list-props "$device_name" | awk '/Coordinate Transformation Matrix/ {match($0, /\(([0-9]+)\)/, a); print a[1]}')

  if [ -n "$prop_id" ]; then
    xinput set-prop "$device_name" "$prop_id" "$speed, 0, 0, 0, $scroll_speed, 0, 0, 0, 1"
    show_matrix
  else
    printf "Property ID for Coordinate Transformation Matrix not found.\n" >&2
    return 1
  fi
}

case "$1" in
-s)
  set_speeds
  ;;
-l | "")
  show_matrix
  ;;
*)
  echo "Invalid option. Use -s to set speeds or -l to list the matrix."
  ;;
esac