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<?php
namespace League\Flysystem;
class Config
{
/**
* @var array
*/
protected $settings = [];
/**
* @var Config|null
*/
protected $fallback;
/**
* Constructor.
*
* @param array $settings
*/
public function __construct(array $settings = [])
{
$this->settings = $settings;
}
/**
* Get a setting.
*
* @param string $key
* @param mixed $default
*
* @return mixed config setting or default when not found
*/
public function get($key, $default = null)
{
if ( ! array_key_exists($key, $this->settings)) {
return $this->getDefault($key, $default);
}
return $this->settings[$key];
}
/**
* Check if an item exists by key.
*
* @param string $key
*
* @return bool
*/
public function has($key)
{
if (array_key_exists($key, $this->settings)) {
return true;
}
return $this->fallback instanceof Config
? $this->fallback->has($key)
: false;
}
/**
* Try to retrieve a default setting from a config fallback.
*
* @param string $key
* @param mixed $default
*
* @return mixed config setting or default when not found
*/
protected function getDefault($key, $default)
{
if ( ! $this->fallback) {
return $default;
}
return $this->fallback->get($key, $default);
}
/**
* Set a setting.
*
* @param string $key
* @param mixed $value
*
* @return $this
*/
public function set($key, $value)
{
$this->settings[$key] = $value;
return $this;
}
/**
* Set the fallback.
*
* @param Config $fallback
*
* @return $this
*/
public function setFallback(Config $fallback)
{
$this->fallback = $fallback;
return $this;
}
}