Overblog\GraphQLBundle\DependencyInjection\Compiler\AutoMappingPass

Complexity

Total Complexity

29

Size/Duplication

Total Lines	167
Duplicated Lines	0 %

Test Coverage

Coverage

98.89%

Importance

Changes

0

7 Methods

Rating	Name	Duplication	Size	Complexity
A	addServiceDefinition()	0	10	2
A	addServicesDefinitions()	0	4	2
B	reflectionClassesFromDirectory()	0	45	8
A	bundleDir()	0	6	1
A	process()	0	38	5
A	subclass()	0	11	3
B	addDefinitionTags()	0	18	8

<?php

namespace Overblog\GraphQLBundle\DependencyInjection\Compiler;

use GraphQL\Type\Definition\Type;
use Overblog\GraphQLBundle\Definition\Resolver\AliasedInterface;
use Overblog\GraphQLBundle\Definition\Resolver\MutationInterface;
use Overblog\GraphQLBundle\Definition\Resolver\ResolverInterface;
use Overblog\GraphQLBundle\OverblogGraphQLBundle;
use Symfony\Component\Config\Resource\DirectoryResource;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\Finder\Finder;

class AutoMappingPass implements CompilerPassInterface
{
    const SERVICE_SUBCLASS_TAG_MAPPING = [
        MutationInterface::class => 'overblog_graphql.mutation',
        ResolverInterface::class => 'overblog_graphql.resolver',
        Type::class => TypeTaggedServiceMappingPass::TAG_NAME,
    ];

    public function process(ContainerBuilder $container)
    {
        $enabled = $container->getParameter('overblog_graphql.auto_mapping.enabled');
        // enabled auto mapping for all bundles and custom dirs ?
        if ($enabled) {
            $directories = $container->getParameter('overblog_graphql.auto_mapping.directories');
            $bundles = $container->getParameter('kernel.bundles');
            $directories = \array_merge(
                \array_map(
                    function ($class) {
                        $bundleDir = $this->bundleDir($class);

                        return $bundleDir.'/GraphQL';
                    },
                    $bundles
                ),
                $directories
            );
            // add app dir
            $directories[] = $container->hasParameter('kernel.root_dir') ?
                $container->getParameter('kernel.root_dir').'/GraphQL' :
                $container->getParameter('kernel.project_dir').'/GraphQL'
            ;
        } else {
            // enabled auto mapping only for this bundle
            $directories = [$this->bundleDir(OverblogGraphQLBundle::class).'/GraphQL'];
        }
        $directoryList = [];

        foreach ($directories as $directory) {
            list($reflectionClasses, $directories) = $this->reflectionClassesFromDirectory($directory);
            $directoryList = \array_merge($directoryList, $directories);
            $this->addServicesDefinitions($container, $reflectionClasses);
        }

        foreach ($directoryList as $directory => $v) {
            $directory = \realpath($directory);
            $container->addResource(new DirectoryResource($directory, '/\.php$/'));
        }
    }

    /**
     * @param ContainerBuilder   $container
     * @param \ReflectionClass[] $reflectionClasses
     */
    private function addServicesDefinitions(ContainerBuilder $container, array $reflectionClasses)
    {
        foreach ($reflectionClasses as $reflectionClass) {
            $this->addServiceDefinition($container, $reflectionClass);
        }
    }

    private function addServiceDefinition(ContainerBuilder $container, \ReflectionClass $reflectionClass)
    {
        $className = $reflectionClass->getName();
        $definition = $container->setDefinition($className, new Definition($className));
        $definition->setPublic(false);
        $definition->setAutowired(true);
        if (\is_subclass_of($definition->getClass(), ContainerAwareInterface::class)) {
            $definition->addMethodCall('setContainer', [new Reference('service_container')]);
        }
        $this->addDefinitionTags($definition, $reflectionClass);
    }

    private function addDefinitionTags(Definition $definition, \ReflectionClass $reflectionClass)
    {
        foreach (self::SERVICE_SUBCLASS_TAG_MAPPING as $subclass => $tagName) {
            if (!$reflectionClass->isSubclassOf($subclass)) {
                continue;
            }

            if (Type::class !== $subclass) {
                $publicReflectionMethods = $reflectionClass->getMethods(\ReflectionMethod::IS_PUBLIC);
                $isAliased = $reflectionClass->implementsInterface(AliasedInterface::class);
                foreach ($publicReflectionMethods as $publicReflectionMethod) {
                    if ('__construct' === $publicReflectionMethod->name || $isAliased && 'getAliases' === $publicReflectionMethod->name) {
                        continue;
                    }
                    $definition->addTag($tagName, ['method' => $publicReflectionMethod->name]);
                }
            } else {
                $definition->addTag($tagName);
            }
        }
    }

    private function subclass($class)
    {
        $interfaces = \array_keys(self::SERVICE_SUBCLASS_TAG_MAPPING);

        foreach ($interfaces as $interface) {
            if (\is_a($class, $interface, true)) {
                return $interface;
            }
        }

        return false;
    }

    /**
     * Gets the classes reflection of class in the given directory.
     *
     * @param string $directory
     *
     * @return array
     */
    private function reflectionClassesFromDirectory($directory)
    {
        $classes = [];
        $directoryList = [];
        $includedFiles = [];
        $reflectionClasses = [];

        $finder = new Finder();
        try {
            $finder->in($directory)->files()->name('*.php');
        } catch (\InvalidArgumentException $e) {
            return [$reflectionClasses, $directoryList];
        }

        foreach ($finder as $file) {
            $directoryList[$file->getPath()] = true;
            $sourceFile = $file->getRealpath();
            if (!\preg_match('(^phar:)i', $sourceFile)) {
                $sourceFile = \realpath($sourceFile);
            }

            require_once $sourceFile;
            $includedFiles[$sourceFile] = true;
        }

        $declared = \get_declared_classes();
        foreach ($declared as $className) {
            $subclass = $this->subclass($className);
            if (false === $subclass) {
                continue;
            }
            $reflectionClass = new \ReflectionClass($className);
            $reflectionClasses[$className] = $reflectionClass;
            $sourceFile = $reflectionClass->getFileName();

            if ($reflectionClass->isAbstract()) {
                continue;
            }

            if (isset($includedFiles[$sourceFile])) {
                $classes[$className] = true;
            }
        }

        return [\array_intersect_key($reflectionClasses, $classes), $directoryList];
    }

    private function bundleDir($bundleClass)
    {
        $bundle = new \ReflectionClass($bundleClass);
        $bundleDir = \dirname($bundle->getFileName());

        return $bundleDir;
    }
}