#!/bin/sh

. slib

help() {
cat << EOF
${0}: Disable and Enable devices

options:
 -e [dev] 	Enable dev
 -d [dev]	Disable dev
 -t [dev]	Toggle dev
 -l 		List devices
 -h 		Print this message and exit

Note: Nondescriptive inputs may disable (or enable) unwanted devices.
EOF

exit 0
}

get_id() {
	if ! dev=$(xinput list --name-only | grep -i -m1 "${1}" ); then
		err "Couldn't get device"
	fi
	id="${dev#∼ }"
}

xenable() {
	echo "${id}"

	if ! xinput enable "${1}" > /dev/null 2>&1; then
		err "Failed to enable dev."
	else
		exit 0
	fi
}

xdisable() {
	echo "${id}"

	if ! xinput disable "${1}" > /dev/null 2>&1; then
		err "Failed to disable dev."
	else
		exit 0
	fi
}

check_program "xinput"

while getopts "e:d:t:lh" option; do
	case "${option}" in
	e)
		get_id "${OPTARG}"
		xenable "${id}"
	;;
	d)
		get_id "${OPTARG}"
		xdisable "${id}"
	;;
	t)
		get_id "${OPTARG}"

		[ "${id}" = "${dev}" ] && xdisable "${id}"
		xenable "${id}"
	;;
	l)
		if ! xinput list 2>/dev/null; then
			err "Listing Failed"
		else
			exit 0
		fi
	;;
	h) help ;;

	*) invalid_use -h ;;

	esac
done

invalid_use