<?php
namespace Knp\Menu\Provider;
use Knp\Menu\ItemInterface;
/**
* A menu provider building menus lazily thanks to builder callables.
*
* Builders can either be callables or a factory for an object callable
* represented as [Closure, method], where the Closure gets called
* to instantiate the object.
*/
class LazyProvider implements MenuProviderInterface
{
/**
* @var array<string, mixed>
*/
private $builders;
/**
* @phpstan-param array<string, callable|array{\Closure, string}> $builders
*/
public function __construct(array $builders)
{
$this->builders = $builders;
}
public function get(string $name, array $options = []): ItemInterface
{
if (!isset($this->builders[$name])) {
throw new \InvalidArgumentException(\sprintf('The menu "%s" is not defined.', $name));
}
$builder = $this->builders[$name];
if (\is_array($builder) && isset($builder[0]) && $builder[0] instanceof \Closure) {
$builder[0] = $builder[0]();
}
if (!\is_callable($builder)) {
throw new \LogicException(\sprintf('Invalid menu builder for "%s". A callable or a factory for an object callable are expected.', $name));
}
return $builder($options);
}
public function has(string $name, array $options = []): bool
{
return isset($this->builders[$name]);
}
}