Dontdrinkandroot\RestBundle\Routing\RestEntityLoader

Complexity

Total Complexity

35

Size/Duplication

Total Lines	233
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	9

Test Coverage

Coverage

88.89%

Importance

Changes	8
Bugs	0	Features	0

7 Methods

Rating	Name	Duplication	Size	Complexity
C	findClass()	0	35	11
A	supports()	0	4	1
A	getNamePrefix()	0	8	2
A	getController()	0	9	2
A	__construct()	0	5	1
A	getPathPrefix()	0	8	2
F	load()	0	116	16

<?php

namespace Dontdrinkandroot\RestBundle\Routing;

use Doctrine\Common\Util\Inflector;
use Dontdrinkandroot\RestBundle\Metadata\ClassMetadata;
use Dontdrinkandroot\RestBundle\Metadata\PropertyMetadata;
use Metadata\MetadataFactoryInterface;
use Symfony\Component\Config\FileLocatorInterface;
use Symfony\Component\Config\Loader\Loader;
use Symfony\Component\Finder\Finder;
use Symfony\Component\Finder\SplFileInfo;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Route;
use Symfony\Component\Routing\RouteCollection;

class RestEntityLoader extends Loader
{
    /**
     * @var FileLocatorInterface
     */
    private $fileLocator;

    /**
     * @var MetadataFactoryInterface
     */
    private $metadataFactory;

    public function __construct(FileLocatorInterface $fileLocator, MetadataFactoryInterface $metadataFactory)
    {
        $this->fileLocator = $fileLocator;
        $this->metadataFactory = $metadataFactory;
    }

    /**
     * {@inheritdoc}
     */
    public function load($resource, $type = null)
    {
        $locatedResource = $this->fileLocator->locate($resource);
        $files = [];
        if (is_dir($locatedResource)) {
            $finder = new Finder();
            foreach ($finder->in($locatedResource)->name('*.php')->files() as $file) {
                /** @var SplFileInfo $file */
                $files[] = $file->getRealPath();
            }
        } else {
            $files[] = $locatedResource;
        }

        $routes = new RouteCollection();
        foreach ($files as $file) {
            $class = $this->findClass($file);
            if (false === $class) {
                throw new \Exception(sprintf('Couldn\'t find class for %s', $file));
            }
            /** @var ClassMetadata $classMetadata */
            $classMetadata = $this->metadataFactory->getMetadataForClass($class);
            if ($classMetadata->isRestResource()) {

                $methods = $classMetadata->getMethods();
                $namePrefix = $this->getNamePrefix($classMetadata);
                $pathPrefix = $this->getPathPrefix($classMetadata);
                $controller = $this->getController($classMetadata);

                $defaults = [
                    '_entityClass' => $class,
                ];

                if (null !== $classMetadata->getService()) {
                    $defaults['_service'] = $classMetadata->getService();
                }

                if (in_array('LIST', $methods)) {
                    $listRoute = new Route($pathPrefix);
                    $listRoute->setMethods(Request::METHOD_GET);
                    $listRoute->setDefaults(array_merge($defaults, ['_controller' => $controller . ':list']));
                    $routes->add($namePrefix . '.list', $listRoute);
                }

                if (in_array('POST', $methods)) {
                    $postRoute = new Route($pathPrefix);
                    $postRoute->setMethods(Request::METHOD_POST);
                    $postRoute->setDefaults(array_merge($defaults, ['_controller' => $controller . ':post']));
                    $routes->add($namePrefix . '.post', $postRoute);
                }

                if (in_array('GET', $methods)) {
                    $getRoute = new Route($pathPrefix . '/{id}');
                    $getRoute->setMethods(Request::METHOD_GET);
                    $getRoute->setDefaults(array_merge($defaults, ['_controller' => $controller . ':get']));
                    $routes->add($namePrefix . '.get', $getRoute);
                }

                if (in_array('PUT', $methods)) {
                    $putRoute = new Route($pathPrefix . '/{id}');
                    $putRoute->setMethods(Request::METHOD_PUT);
                    $putRoute->setDefaults(array_merge($defaults, ['_controller' => $controller . ':put']));
                    $routes->add($namePrefix . '.put', $putRoute);
                }

                if (in_array('DELETE', $methods)) {
                    $deleteRoute = new Route($pathPrefix . '/{id}');
                    $deleteRoute->setMethods(Request::METHOD_DELETE);
                    $deleteRoute->setDefaults(array_merge($defaults, ['_controller' => $controller . ':delete']));
                    $routes->add($namePrefix . '.delete', $deleteRoute);
                }

                /** @var PropertyMetadata $propertyMetadata */
                foreach ($classMetadata->propertyMetadata as $propertyMetadata) {
                    if ($propertyMetadata->isSubResource()) {
                        $subResourcePath = strtolower($propertyMetadata->name);
                        if (null !== $propertyMetadata->getSubResourcePath()) {
                            $subResourcePath = $propertyMetadata->getSubResourcePath();
                        }
                        $subResourceFullPath = $pathPrefix . '/{id}/' . $subResourcePath;
                        $subResourceRoute = new Route($subResourceFullPath);
                        $subResourceRoute->setMethods(Request::METHOD_GET);
                        $subResourceRoute->setDefaults(
                            array_merge(
                                $defaults,
                                [
                                    '_controller'  => $controller . ':listSubresource',
                                    '_subresource' => $propertyMetadata->name,
                                ]
                            )
                        );
                        $routes->add($namePrefix . '.' . $propertyMetadata->name . '.list', $subResourceRoute);

                        $postRight = $propertyMetadata->getSubResourcePostRight();
                        if (null !== $postRight) {
                            $subResourceFullPath = $pathPrefix . '/{id}/' . $subResourcePath;
                            $subResourceRoute = new Route($subResourceFullPath);
                            $subResourceRoute->setMethods(Request::METHOD_POST);
                            $subResourceRoute->setDefaults(
                                array_merge(
                                    $defaults,
                                    [
                                        '_controller'  => $controller . ':postSubresource',
                                        '_subresource' => $propertyMetadata->name,
                                    ]
                                )
                            );
                            $routes->add($namePrefix . '.' . $propertyMetadata->name . '.post', $subResourceRoute);
                        }
                    }
                }
            }
        }

        return $routes;
    }

    /**
     * Taken from {@see AnnotationFileLoader}
     * TODO: Evaluate if there is a library method or extract.
     *
     * @param $file
     *
     * @return bool|string
     */
    protected function findClass($file)
    {
        $class = false;
        $namespace = false;
        $tokens = token_get_all(file_get_contents($file));
        for ($i = 0; isset($tokens[$i]); ++$i) {
            $token = $tokens[$i];

            if (!isset($token[1])) {
                continue;
            }

            if (true === $class && T_STRING === $token[0]) {
                return $namespace . '\\' . $token[1];
            }

            if (true === $namespace && T_STRING === $token[0]) {
                $namespace = $token[1];
                while (isset($tokens[++$i][1]) && in_array($tokens[$i][0], array(T_NS_SEPARATOR, T_STRING))) {
                    $namespace .= $tokens[$i][1];
                }
                $token = $tokens[$i];
            }

            if (T_CLASS === $token[0]) {
                $class = true;
            }

            if (T_NAMESPACE === $token[0]) {
                $namespace = true;
            }
        }

        return false;
    }

    /**
     * {@inheritdoc}
     */
    public function supports($resource, $type = null)
    {
        return 'ddr_rest' === $type;
    }

    /**
     * @param ClassMetadata $classMetadata
     *
     * @return string
     */
    private function getNamePrefix(ClassMetadata $classMetadata)
    {
        if (null !== $classMetadata->getNamePrefix()) {
            return $classMetadata->getNamePrefix();
        }

        return Inflector::tableize($classMetadata->reflection->getShortName());
    }

    /**
     * @param ClassMetadata $classMetadata
     *
     * @return string
     */
    private function getPathPrefix(ClassMetadata $classMetadata)
    {
        if (null !== $classMetadata->getPathPrefix()) {
            return $classMetadata->getPathPrefix();
        }

        return Inflector::pluralize(strtolower($classMetadata->reflection->getShortName()));
    }

    /**
     * @param ClassMetadata $classMetadata
     *
     * @return string
     */
    protected function getController(ClassMetadata $classMetadata)
    {
        $controller = 'DdrRestBundle:Entity';
        if (null !== $classMetadata->getController()) {
            $controller = $classMetadata->getController();
        }

        return $controller;
    }
}