#!/bin/bash

xinput_touchpad_id=$(xinput | grep -i touchpad | sed 's/^.*id=\([0-9]*\).*/\1/')

case $1 in

	enable)
		xinput enable $xinput_touchpad_id
		;;
	disable)
		xinput disable $xinput_touchpad_id
		;;
	id)
		echo $xinput_touchpad_id
		;;
	--help | -h)
		echo 'Usage: touchpad OPTION'
		echo 'Used to manipulate touchpad.'

		echo ''
		echo '	--help: display this help and exit'
		echo '	enable: enables touchpad'
		echo '	disable: disables touchpad'
		echo '	id: returns the xinput id of the touchpad'
		;;
	"")
		echo 'No argument provided.'
		echo 'Try "touchpad --help" for more information.'
		;;	
	*)
		echo 'Invalid argument.'
		echo 'Try "touchpad --help" for more information'
		;;
esac