#!/bin/bash

set -o pipefail

NOW=$(date +%Y-%m-%d)
BACKUP_DATE=${BACKUP_DATE:-${NOW}}
BACKUP_FILENAME="backup_${OPENWRT_DEVICE}_${NOW}.tar.gz"

printf "%s" "Waiting for ${OPENWRT_DEVICE} ..."
while ! ping -c 1 -n -w 1 ${OPENWRT_DEVICE} &> /dev/null
do
    printf "%c" "."
done
printf "\n%s\n"  "Server is back online"

scp "./tmp/backups/${BACKUP_FILENAME}" root@${OPENWRT_DEVICE}:/tmp/

ssh root@${OPENWRT_DEVICE} sysupgrade -r "/tmp/${BACKUP_FILENAME}"