#!/bin/sh

set -e

# Local backup script (run as root)

echo "Creating mountpoint."
mkdir -p /mnt/disk_b/

echo "Preparing to decrypt backup disk..."
sleep 5
echo "Decrypting disk..."
cryptsetup luksOpen {{ backup_disk }} disk_b --key-file /k5e
echo "Disk decrypted."

echo "Mounting backup disk."
mount /dev/mapper/disk_b /mnt/disk_b

if ! mountpoint -q /mnt/disk;
then
	echo "Missing data disk mount!"
	exit
fi

mkdir -p /mnt/disk_b/bkd/
rsync -avxP --delete \
	--exclude={{ dataroot }}/navidrome/cache \
	--exclude={{ dataroot }}/synapse/media_store \
	/mnt/disk/ /mnt/disk_b/bkd/

echo "Preparing to unmount backup disk."
sleep 5
echo "Unmounting backup disk."
umount /mnt/disk_b
echo "Unmounted backup disk."

echo "Preparing to close backup disk."
sleep 5
echo "Closing backup disk."
cryptsetup luksClose /dev/mapper/disk_b
echo "Disk closed."