#!/bin/sh
set -eu

usage() {
	cat <<-'EOF'
		Usage:
		  boop [-m MESSAGE] [-n] -- COMMAND...
		  boop -h
	EOF
}

help() {
	cat <<-'EOF'


		Options:
		  -m MESSAGE    text message of the desktop
		                notification (default: COMMAND)
		  -n            don't play any sound
		  -x            only notify when COMMAND fails
		  -h, --help    show this message

		  COMMAND       the commands to be executed


		Examples:

		  Play the positive sound, using the command as message:

		    $ boop echo 123


		  Fail with the underlying 127 return code with the
		  message "ERROR":

		    $ boop -m ERROR ech 123
	EOF
}

for flag in "$@"; do
	case "$flag" in
		(--)
			break
			;;
		(--help)
			usage
			help
			exit
			;;
		(*)
			;;
	esac
done

SOUND=-s
SILENT=false
while getopts 'm:nxh' flag; do
	case "$flag" in
		(m)
			MESSAGE="$OPTARG"
			;;
		(n)
			SOUND=
			;;
		(x)
			SILENT=true
			;;
		(h)
			usage
			help
			exit
			;;
		(*)
			usage >&2
			exit 2
			;;
	esac
done
shift $((OPTIND - 1))


CMD="$*"

set +e
"$@"
STATUS=$?
set -e

if [ "$STATUS" = 0 ]; then
	N=0
else
	N=1
fi

if [ "$N" = 1 ] || [ "$SILENT" = false ]; then
	msg -"$N" -b $SOUND  -D "${MESSAGE:-`printf '%s\n\n(%s)\n' "$CMD" "$PWD"`}"
fi

exit "$STATUS"
