PresenterMiddleware::__construct()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 3
Code Lines 1

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 2
CRAP Score 1

Importance

Changes 1
Bugs 0 Features 0
Metric Value
eloc 1
c 1
b 0
f 0
dl 0
loc 3
ccs 2
cts 2
cp 1
rs 10
cc 1
nc 1
nop 1
crap 1
1
<?php
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declare(strict_types=1);
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namespace Shoot\Shoot\Middleware;
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use Psr\Container\ContainerExceptionInterface;
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use Psr\Container\ContainerInterface;
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use Psr\Http\Message\ServerRequestInterface;
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use Shoot\Shoot\HasPresenterInterface;
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use Shoot\Shoot\MiddlewareInterface;
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use Shoot\Shoot\PresenterInterface;
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use Shoot\Shoot\View;
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/**
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 * Resolves presenters for presentation models implementing the HasPresenterInterface using a PSR-11 compliant
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 * container.
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 */
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final class PresenterMiddleware implements MiddlewareInterface
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{
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    /** @var ContainerInterface */
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    private $container;
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    /**
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     * Constructs a new instance of PresenterMiddleware. Requires a PSR-11 compliant container capable of resolving
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     * your presenters.
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     *
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     * @param ContainerInterface $container
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     */
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    public function __construct(ContainerInterface $container)
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    {
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        $this->container = $container;
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    }
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    /**
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     * Process the view within the context of the current HTTP request, either before or after calling the next
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     * middleware. Returns the processed view.
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     *
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     * @param View                   $view
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     * @param ServerRequestInterface $request
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     * @param callable               $next
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     *
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     * @return View
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     */
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    public function process(View $view, ServerRequestInterface $request, callable $next): View
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    {
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        $presentationModel = $view->getPresentationModel();
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        if ($presentationModel instanceof HasPresenterInterface) {
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            $presenter = $this->loadPresenter($presentationModel);
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            $presentationModel = $presenter->present($request, $presentationModel);
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            $view = $view->withPresentationModel($presentationModel);
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        }
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        return $next($view);
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    }
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    /**
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     * @param HasPresenterInterface $hasPresenter
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     *
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     * @return PresenterInterface
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     *
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     * @throws ContainerExceptionInterface
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     */
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    private function loadPresenter(HasPresenterInterface $hasPresenter): PresenterInterface
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    {
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        return $this->container->get($hasPresenter->getPresenterName());
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    }
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}
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