<?php
/**
 * @copyright Copyright (C) 2010-2023, the Friendica project
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program 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, either version 3 of the
 * License, or (at your option) any later version.
 *
 * 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/>.
 *
 */

namespace Friendica\Core\Config\Repository;

use Friendica\App\Mode;
use Friendica\Core\Config\Exception\ConfigPersistenceException;
use Friendica\Core\Config\Util\ValueConversion;
use Friendica\Database\Database;

/**
 * The Config Repository, which is using the general DB-model backend for configs
 */
class Config
{
	/** @var Database */
	protected $db;
	/** @var Mode */
	protected $mode;

	public function __construct(Database $db, Mode $mode)
	{
		$this->db   = $db;
		$this->mode = $mode;
	}

	protected static $table_name = 'config';

	/**
	 * Checks if the model is currently connected
	 *
	 * @return bool
	 */
	public function isConnected(): bool
	{
		return true;
	}

	/**
	 * Loads all configuration values and returns the loaded category as an array.
	 *
	 * @param string|null $cat The category of the configuration values to load
	 *
	 * @return array The config array
	 *
	 * @throws ConfigPersistenceException In case the persistence layer throws errors
	 */
	public function load(?string $cat = null): array
	{
		return [];
	}

	/**
	 * Get a particular, system-wide config variable out of the DB with the
	 * given category name ($cat) and a key ($key).
	 *
	 * Note: Boolean variables are defined as 0/1 in the database
	 *
	 * @param string $cat The category of the configuration value
	 * @param string $key The configuration key to query
	 *
	 * @return array|string|null Stored value or null if it does not exist
	 *
	 * @throws ConfigPersistenceException In case the persistence layer throws errors
	 */
	public function get(string $cat, string $key)
	{
		return null;
	}

	/**
	 * Stores a config value ($value) in the category ($cat) under the key ($key).
	 *
	 * Note: Please do not store booleans - convert to 0/1 integer values!
	 *
	 * @param string $cat   The category of the configuration value
	 * @param string $key   The configuration key to set
	 * @param mixed  $value The value to store
	 *
	 * @return bool Operation success
	 *
	 * @throws ConfigPersistenceException In case the persistence layer throws errors
	 */
	public function set(string $cat, string $key, $value): bool
	{
		return true;
	}

	/**
	 * Removes the configured value from the database.
	 *
	 * @param string $cat The category of the configuration value
	 * @param string $key The configuration key to delete
	 *
	 * @return bool Operation success
	 *
	 * @throws ConfigPersistenceException In case the persistence layer throws errors
	 */
	public function delete(string $cat, string $key): bool
	{
		return true;
	}
}