#!/bin/sh

set -eu
umask 077

mountpoint_dir='/mnt/wasabi-data-crypt'
destination_dir="$mountpoint_dir/pass"
timestamp=$(date +%s)
copied=0

if ! mountpoint -q "$mountpoint_dir"; then
	echo "Password backup aborted: $mountpoint_dir is not mounted" >&2
	exit 1
fi

if ! [ -d "$destination_dir" ]; then
	echo "Password backup aborted: $destination_dir does not exist" >&2
	exit 1
fi

for source_file in ./*.kdbx; do
	[ -e "$source_file" ] || continue
	filename=${source_file#./}
	cp -- "$source_file" "$destination_dir/$timestamp-$filename"
	printf 'Backed up %s\n' "$filename"
	copied=$((copied + 1))
done

if [ "$copied" -eq 0 ]; then
	echo 'Password backup aborted: no .kdbx files found' >&2
	exit 1
fi

printf 'Password backup complete: %s file(s) copied to %s\n' "$copied" "$destination_dir"