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<?php
namespace TusPhp;
class Config
{
/** @const string */
private const DEFAULT_CONFIG_PATH = __DIR__ . '/Config/server.php';
/** @var array */
protected static $config = [];
/**
* Get path to the base cache directory.
*
* @return string
*/
public static function getCacheHome(): string
{
if (($cacheDir = getenv('TUS_CACHE_HOME')) !== false) {
return $cacheDir;
}
// See https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
if (($cacheDir = getenv('XDG_CACHE_HOME')) !== false) {
return $cacheDir;
}
return \dirname(__DIR__);
}
/**
* Load default application configs.
*
* @param string|array $config
* @param bool $force
*
* @return void
*/
public static function set($config = null, bool $force = false)
{
if ( ! $force && ! empty(self::$config)) {
return;
}
if (\is_array($config)) {
self::$config = $config;
} else {
self::$config = require $config ?? self::DEFAULT_CONFIG_PATH;
}
}
/**
* Get config.
*
* @param string|null $key Key to extract.
*
* @return mixed
*/
public static function get(string $key = null)
{
self::set();
if (empty($key)) {
return self::$config;
}
$keys = explode('.', $key);
$value = self::$config;
foreach ($keys as $k) {
if ( ! isset($value[$k])) {
return null;
}
$value = $value[$k];
}
return $value;
}
}