#!/bin/sh

# log command
if [ -n "$SSH_ORIGINAL_COMMAND" ]
then
  echo "`/bin/date`: $SSH_ORIGINAL_COMMAND" | systemd-cat -t "ssh-wrapper.sh"
fi

# define executable commands
get_hashed_machine_id="sha256sum /etc/machine-id";
get_backup_types="find /Backups/{{hashed_machine_id.stdout}}/ -maxdepth 1 -type d -execdir basename {} ;";

# @todo This configuration is not scalable yet. If other backup services then docker-volume-backup are integrated, this logic needs to be optimized
get_static_last_version_dir="readlink -f /Backups/{{hashed_machine_id.stdout}}/docker-volume-backup/latest"
rsync_command="sudo rsync --server --sender -blogDtpre.iLsfxCIvu . $($get_static_last_version_dir)/"

# filter commands
case "$SSH_ORIGINAL_COMMAND" in
	"$get_hashed_machine_id")
		$get_hashed_machine_id
		;;
	"$get_static_last_version_dir")
		$get_static_last_version_dir
		;;
	"$get_backup_types")
		$get_backup_types
		;;
	"$rsync_command")
		$rsync_command
		;;
	*)
		echo "This command is not supported."
		exit 1
		;;
esac