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<?php
/* Icinga Web 2 | (c) 2022 Icinga GmbH | GPLv2+ */
namespace Icinga\Less;
use ArrayIterator;
use InvalidArgumentException;
use IteratorAggregate;
use Less_Environment;
use Traversable;
/**
* Registry for light modes and the environments in which they are defined
*/
class LightMode implements IteratorAggregate
{
/** @var array Mode environments as mode-environment pairs */
protected $envs = [];
/** @var array Assoc list of modes */
protected $modes = [];
/** @var array Mode selectors as mode-selector pairs */
protected $selectors = [];
/**
* @param string $mode
*
* @return $this
*
* @throws InvalidArgumentException If the mode already exists
*/
public function add($mode)
{
if (array_key_exists($mode, $this->modes)) {
throw new InvalidArgumentException("$mode already exists");
}
$this->modes[$mode] = true;
return $this;
}
/**
* @param string $mode
*
* @return Less_Environment
*
* @throws InvalidArgumentException If there is no environment for the given mode
*/
public function getEnv($mode)
{
if (! isset($this->envs[$mode])) {
throw new InvalidArgumentException("$mode does not exist");
}
return $this->envs[$mode];
}
/**
* @param string $mode
* @param Less_Environment $env
*
* @return $this
*
* @throws InvalidArgumentException If an environment for given the mode already exists
*/
public function setEnv($mode, Less_Environment $env)
{
if (array_key_exists($mode, $this->envs)) {
throw new InvalidArgumentException("$mode already exists");
}
$this->envs[$mode] = $env;
return $this;
}
/**
* @param string $mode
*
* @return bool
*/
public function hasSelector($mode)
{
return isset($this->selectors[$mode]);
}
/**
* @param string $mode
*
* @return string
*
* @throws InvalidArgumentException If there is no selector for the given mode
*/
public function getSelector($mode)
{
if (! isset($this->selectors[$mode])) {
throw new InvalidArgumentException("$mode does not exist");
}
return $this->selectors[$mode];
}
/**
* @param string $mode
* @param string $selector
*
* @return $this
*
* @throws InvalidArgumentException If a selector for given the mode already exists
*/
public function setSelector($mode, $selector)
{
if (array_key_exists($mode, $this->selectors)) {
throw new InvalidArgumentException("$mode already exists");
}
$this->selectors[$mode] = $selector;
return $this;
}
public function getIterator(): Traversable
{
return new ArrayIterator(array_keys($this->modes));
}
}
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