src/Resolvers/ParentResolver.php
<?php
namespace Glhd\Gretel\Resolvers;
use Closure;
use Glhd\Gretel\Exceptions\UnmatchedRouteException;
use Glhd\Gretel\Exceptions\UnresolvableParentException;
use Glhd\Gretel\Registry;
use Glhd\Gretel\Routing\RouteBreadcrumb;
use Illuminate\Http\Request;
use Illuminate\Support\Arr;
use Illuminate\Support\Str;
use Symfony\Component\HttpFoundation\Request as SymfonyRequest;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
class ParentResolver extends Resolver
{
public static function make($value, string $name, ?Closure $relation = null): Resolver
{
$value = static::wrapClosure($value);
$relation = static::wrapNullableClosure($relation);
$callback = static function() use ($value, $name, $relation) {
return [$value, $name, $relation];
};
return new static($callback);
}
public function resolve(array $parameters, Registry $registry)
{
[$callback, $name, $relation] = parent::resolve($parameters, $registry);
$result = $callback($parameters);
if (null === $result) {
return null;
}
if ($relation) {
$parameters = Arr::wrap($relation($parameters));
}
// Handle parent shorthand
if (is_string($result) && 0 === strpos($result, '.')) {
$result = Str::beforeLast($name, '.').$result;
}
// If we get back a route name, we'll load it from the registry and pass
// on any custom parameters that were provided
if (is_string($result) && $registry->has($result)) {
$result = $registry->getOrFail($result);
}
// If we get back a URL, we'll try to resolve the parent via the Router
// This may not last in the API — use at your own risk
if (is_string($result) && filter_var($result, FILTER_VALIDATE_URL)) {
return $this->findParentByUrl($result, $registry);
}
if (! ($result instanceof RouteBreadcrumb)) {
throw new UnresolvableParentException($result, $name);
}
if (! empty($parameters)) {
$result = clone $result;
$result->setParameters($parameters);
}
return $result;
}
/**
* Please note that this behavior is intentionally undocumented and may be
* removed at any time. Use at your own risk.
*/
protected function findParentByUrl(string $url, Registry $registry): RouteBreadcrumb
{
$router = app('router');
$request = Request::createFromBase(SymfonyRequest::create($url));
try {
$route = $router->getRoutes()->match($request);
} catch (NotFoundHttpException $exception) {
throw new UnmatchedRouteException($url);
}
if ($route->hasParameters()) {
$router->substituteBindings($route);
$router->substituteImplicitBindings($route);
}
$breadcrumb = $registry->getOrFail($route);
$breadcrumb->setParameters($route->parameters());
return $breadcrumb;
}
}