/*
 * Copyright (C)  2021-2022 Kristóf Marussy <kristof@marussy.com>
 *
 * This file is part of Sophie.
 *
 * Sophie is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, version 3.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * SPDX-License-Identifier: AGPL-3.0-only
 */

import { IDisposer } from 'mobx-state-tree';
import ms from 'ms';

import type { ConfigSnapshotOut } from '../stores/Config';

export const CONFIG_DEBOUNCE_TIME: number = ms('1s');

export type ReadConfigResult = { found: true; data: unknown; } | { found: false; };

export interface ConfigPersistence {
  readConfig(): Promise<ReadConfigResult>;

  writeConfig(configSnapshot: ConfigSnapshotOut): Promise<Date>;

  watchConfig(callback: (mtime: Date) => Promise<void>): IDisposer;
}