#! /bin/bash

set -e
set -u
set -o pipefail

statusfile=/var/run/zabbix/vmbackup.status
basedir=/mnt/backups/vms
vbm="sudo -u cig vboxmanage"
rsync="rsync"

_exit () {
	echo $1 > $statusfile
	exit $2
}

_mail () {
	echo "$@" | mail -s "$(hostname -f) : vm backup error" root
}

function checkRunning {
	local machine=$1
	$vbm list runningvms | grep -q $machine
	return $?
}

function _shutdown_vm {
  net rpc shutdown -I 192.168.69.250 -U tom%123Soleil2022!
  sleep 30
}

mount /mnt/backups &> /dev/null || _exit "mount failed" 2

if [ ! -d $basedir ] ; then
	_mail Dir $basedir not mounted
	_exit "no base dir" 41
fi

outputdir=${basedir}/$(date -I)

if [ $# -ne 1 ] ; then
	echo "Usage: $O vm"
	echo "Stop, backup and start given vm"
	_exit "Usage" 42
fi

machine=$1
if ( checkRunning $machine ) ; then
	mkdir -p ${outputdir}
	_shutdown_vm
	$rsync --inplace --delete --delete-after -a /srv/VM/Win/roofline ${outputdir}/
	ret=$?
	test $ret -eq 0 || _mail "rsync error $ret"
	$vbm startvm $machine
	test $ret -eq 0 && find ${basedir} -maxdepth 1 -type d -mtime +7 -exec echo rm -fr {} \;
	umount /mnt/backups &> /dev/null || _mail "umount failed"
   _mail "backup done with status $ret"
	_exit "backup done" $ret
fi
_mail "vm $machine not running"
_exit "vm not running" 43