#!/usr/bin/env bash 

set -eu

synopsis() {
	cat << EOF
Usage : `basename $0` [-h] system
EOF
}

help() {
	cat << EOF

`basename $0` retourne 0 si le système est en fonctionnement, 1 sinon.

`synopsis`

-h : affiche cette aide.

EOF
}

usage() {
	synopsis
	exit 1
}

args() {
	local opt
	while getopts "h" opt; do
		case $opt in
			h) help; exit 0;;
			?) usage;;
		esac
	done
	shift $(($OPTIND - 1))
	[ $# -ne 1 ] && usage

	GUEST_NAME="$1"
	if echo $GUEST_NAME | grep -q '/'; then
		error "$GUEST_NAME est un nom de système invalide"
	fi
}

alive() {
	local r
	set +e
	#ps u | grep -E $GUEST_NAME[-]$USER-pid
	#ps auwx | grep qemu
	#ps -w -w -u $USER -eo cmd | grep -Eq $GUEST_NAME[-]$USER-pid
	ps -w -w -eo user:14,cmd | grep $USER | grep -Eq $GUEST_NAME[-]$USER-pid
	r=$?
	set -e
	return $r
}


# Programme principal

GUEST_OWNER=$USER
VDN_PATH=$(readlink -f $(dirname $0)/..); . $VDN_PATH/bin/functions.sh

args "$@"

alive