#!/bin/bash

sudo echo ">>> Initialising"

if [[ `id -u` == 0 ]]; then
	echo "WARNING: Running as root? This might not be what you want..."
fi

SCRIPTPATH="$( cd "$(dirname "$0")" ; pwd -P )"

echo ">>> Checking validity of image"

if $SCRIPTPATH/disk-backup-check "$1"; then
	if stat "$2"; then
		sudo umount "$2" &> /dev/null
		set -e
		set -o pipefail
		echo ">>> Will restore $1 to $2"
		read -p "Is this okay (y/N)? " -n 1 -r
		echo
		if [[ $REPLY =~ ^[Yy]$ ]]; then
			if cat "$1" | openssl aes-192-cbc -salt -d | gunzip -c | sudo dd conv=sync,noerror "of=$2" status=progress; then
				echo ">>> Done"
			else
				echo "ERROR - Failure, corruption likely"
			fi
		else
			echo "Doing nothing"
		fi
	else
		echo "ERROR - No such device"
	fi
fi