<?php
/**
 * ownCloud
 *
 * @author Frank Karlitschek
 * @author Jakob Sack
 * @copyright 2012 Frank Karlitschek frank@owncloud.org
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
/*
 *
 * An example of config.php
 *
 * <?php
 * $CONFIG = array(
 *     "database" => "mysql",
 *     "firstrun" => false,
 *     "pi" => 3.14
 * );
 * ?>
 *
 */

/**
 * This class is responsible for reading and writing config.php, the very basic
 * configuration file of owncloud.
 */
OC_Config::$object = new \OC\Config(OC::$SERVERROOT.'/config/', defined('DEBUG') && DEBUG);
class OC_Config{
	public static $object;
	/**
	 * @brief Lists all available config keys
	 * @return array with key names
	 *
	 * This function returns all keys saved in config.php. Please note that it
	 * does not return the values.
	 */
	public static function getKeys() {
		return self::$object->getKeys();
	}

	/**
	 * @brief Gets a value from config.php
	 * @param string $key key
	 * @param string $default = null default value
	 * @return string the value or $default
	 *
	 * This function gets the value from config.php. If it does not exist,
	 * $default will be returned.
	 */
	public static function getValue( $key, $default = null ) {
		return self::$object->getValue( $key, $default );
	}

	/**
	 * @brief Sets a value
	 * @param string $key key
	 * @param string $value value
	 *
	 * This function sets the value and writes the config.php. If the file can
	 * not be written, false will be returned.
	 */
	public static function setValue( $key, $value ) {
		try {
			self::$object->setValue( $key, $value );
		} catch (\OC\HintException $e) {
			\OC_Template::printErrorPage( $e->getMessage(), $e->getHint() );
		}
	}

	/**
	 * @brief Removes a key from the config
	 * @param string $key key
	 *
	 * This function removes a key from the config.php. If owncloud has no
	 * write access to config.php, the function will return false.
	 */
	public static function deleteKey( $key ) {
		try {
			self::$object->deleteKey( $key );
		} catch (\OC\HintException $e) {
			\OC_Template::printErrorPage( $e->getMessage(), $e->getHint() );
		}
	}
}