/*
This file is part of »mimir«.

Copyright 2025 kcf <fenris@folksprak.org>

»mimir« is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

»mimir« is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with »mimir«. If not, see <http://www.gnu.org/licenses/>.
 */

namespace _mimir.transfer.borg
{
	
	/**
	 */
	export type type_encryption = (
		{
			kind : "none";
			data : {
			};
		}
		|
		{
			kind : "repokey";
			data : {
				passphrase : string;
			};
		}
		/*
		|
		{
			kind : "keyfile";
			data : {
				path : string;
				passphrase : string;
			};
		}
		 */
	);
	
	
	/**
	 */
	export type type_parameters = {
		repository : string;
		compression : string;
		encryption : type_encryption;
		pruning : {
			keep_within : string;
			keep_weekly : int;
			keep_yearly : int;
		}
	};
	
	
	/**
	 */
	export function execute(
		parameters : type_parameters,
		name : string,
		stamp : string,
		directory : string
	) : Array<string>
	{
		const result : Array<string> = [];
		result.push(
			_mimir.helpers.borg.create(
				parameters.repository,
				lib_plankton.string.coin(
					"{{stamp}}-{{name}}",
					{
						"name": name,
						"stamp": stamp,
					}
				),
				[directory],
				{
					"passphrase": (
						(parameters.encryption.kind === "repokey")
						?
						parameters.encryption.data.passphrase
						:
						null
					),
					"compression": parameters.compression,
				}
			)
		);
		result.push(
			_mimir.helpers.borg.prune(
				parameters.repository,
				parameters.pruning.keep_within,
				{
					"keep_weekly": parameters.pruning.keep_weekly,
					"keep_yearly": parameters.pruning.keep_yearly,
				}
			)
		);
		return result;
	}
	
	
	/**
	 */
	export function logic(
		parameters : type_parameters
	) : _mimir.transfer.type_logic
	{
		return {
			"execute": (name, stamp, directory) => execute(parameters, name, stamp, directory),
		};
	}
	
}