#!/bin/sh
set -eu

usage() {
	cat <<-'EOF'
		Usage:
		  msg -X XMPP_MESSAGE -s -S SOUND_MESSAGE -m EMAIL -D DESKTOP -b
		  msg -h
	EOF
}

help() {
	cat <<-'EOF'

		Options:
		  -X XMPP_MESSAGE       send XMPP using the `xmpp` command
		  -s                    play ~/Desktop/medium.ogg sound
		  -S SOUND_MESSAGE      say SOUND_MESSAGE using `speak`
		  -m EMAIL_SUBJECT      send email with EMAIL_SUBJECT and empty body
		  -D DESKTOP_MESSAGE    the desktop message for `notify-send`
		  -b                    print terminal bell
		  -h, --help    show this message
	EOF
}

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

ACTION_DONE=false
while getopts 'X:sS:m:D:bh' flag; do
	case "$flag" in
		X)
			xmpp -m "$OPTARG"
			ACTION_DONE=true
			;;
		s)
			play ~/Desktop/medium.ogg
			ACTION_DONE=true
			;;
		S)
			echo "$OPTARG" | speak -v pt-BR
			ACTION_DONE=true
			;;
		m)
			echo "" | mail \
				-a 'Content-Type: text/plain; charset=UTF-8' \
				-a 'From:bot@euandre.org' \
				-s "$OPTARG"              \
				eu@euandre.org ||:
			ACTION_DONE=true
			;;
		D)
			notify-send "$OPTARG"
			ACTION_DONE=true
			;;
		b)
			printf '\a'
			ACTION_DONE=true
			;;
		h)
			usage
			help
			exit
			;;
		*)
			usage >&2
			exit 2
			;;
	esac
done

if [ "$ACTION_DONE" = false ]; then
	usage
	help
	exit
fi