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sakura/libraries/Config.php
2016-02-15 22:20:46 +01:00

118 lines
3.2 KiB
PHP

<?php
/**
* Holds the configuration manager.
*
* @package Sakura
*/
namespace Sakura;
/**
* Handles both the local and database stored configuration sides of Sakura.
*
* @package Sakura
* @author Julian van de Groep <me@flash.moe>
*/
class Config
{
/**
* Container for the parsed local configuration.
*
* @var array
*/
private static $local = [];
/**
* Cache for the configuration stored in the database.
*
* @var array
*/
private static $database = [];
/**
* Initialiser, parses the local configuration.
*
* @param string $local Path to the configuration file.
*/
public static function init($local)
{
// Check if the configuration file exists
if (!file_exists($local)) {
trigger_error('Local configuration file does not exist', E_USER_ERROR);
}
// Attempt to load the configuration file
$local = parse_ini_file($local, true);
// Check if $local is an array and then store it in $local
if (is_array($local)) {
self::$local = $local;
} else {
// Otherwise trigger an error
trigger_error(
'Failed to load local configuration file,' .
' check the structure of the file to see if you made mistake somewhere',
E_USER_ERROR
);
}
}
/**
* Get a value from the local configuration file.
*
* @param string $key Configuration section.
* @param string $subkey Configuration key.
*
* @return string Configuration value.
*/
public static function local($key, $subkey = null)
{
// Check if the key that we're looking for exists
if (array_key_exists($key, self::$local)) {
if ($subkey) {
// If we also have a subkey return the proper data
return self::$local[$key][$subkey];
}
// else we just return the default value
return self::$local[$key];
}
// If it doesn't exist trigger an error to avoid explosions
trigger_error(
'Unable to get local configuration value "' . $key . '"',
E_USER_ERROR
);
return null;
}
/**
* Get a configuration value from the database.
*
* @param string $key Configuration key.
* @param bool $returnNull Unused value, only exists to prevent explosions.
*
* @return string Configuration value.
*/
public static function get($key, $returnNull = false)
{
// Check if the key that we're looking for exists
if (array_key_exists($key, self::$database)) {
// Then return the value
return self::$database[$key];
} else {
$value = Database::fetch('config', false, ['config_name' => [$key, '=']]);
if ($value) {
self::$database[$key] = $value['config_value'];
return self::$database[$key];
}
}
// Then return the value
trigger_error(
'Unable to get configuration value "' . $key . '"',
E_USER_ERROR
);
return null;
}
}