Namespaces

• ICanBoogie
  • Binding
    • SymfonyDependencyInjection
      • Extension

Classes

• ContainerPathname
• ContainerProxy
• Hooks

Traits

• ApplicationBindings

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<?php

/*
 * This file is part of the ICanBoogie package.
 *
 * (c) Olivier Laviale <olivier.laviale@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace ICanBoogie\Binding\SymfonyDependencyInjection;

use ICanBoogie\Accessor\AccessorTrait;
use ICanBoogie\Application;
use Symfony\Component\Config\FileLocator;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Dumper\PhpDumper;
use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;

/**
 * Proxy to Symfony container.
 *
 * @property-read Container $container
 */
class ContainerProxy
{
    use AccessorTrait;

    const SERVICE_APP = 'app';
    const SERVICE_CONTAINER = 'container';
    const CONFIG_FILENAME = 'services.yml';

    /**
     * @var Application
     */
    private $app;

    /**
     * @var Container
     */
    private $container;

    /**
     * @return Container
     */
    protected function get_container()
    {
        return $this->container ?: $this->container = $this->instantiate_container();
    }

    /**
     * @codeCoverageIgnoreStart
     *
     * @param Application $app
     */
    public function __construct(Application $app)
    {
        $this->app = $app;
    }
    // @codeCoverageIgnoreEnd

    /**
     * @param string $id Service identifier
     *
     * @return object
     */
    public function __invoke($id)
    {
        return $this->get_container()->get($id);
    }

    /**
     * @return ContainerBuilder
     */
    private function instantiate_container()
    {
        $app = $this->app;
        $class = 'ApplicationContainer';
        $pathname = ContainerPathname::from($app);

        if (!file_exists($pathname))
        {
            $container = $this->create_container();
            $this->dump_container($container, $pathname, $class);
        }

        require $pathname;

        /* @var $container ContainerBuilder */

        $container = new $class();
        $container->set(self::SERVICE_APP, $app);
        $container->set(self::SERVICE_CONTAINER, $container);

        return $container;
    }

    /**
     * @return ContainerBuilder
     */
    private function create_container()
    {
        $container = new ContainerBuilder();

        $this->apply_extensions($container);
        $this->apply_services($container);

        $container->compile();
        $container->set(self::SERVICE_APP, $this->app);

        return $container;
    }

    /**
     * @param ContainerBuilder $container
     */
    private function apply_extensions(ContainerBuilder $container)
    {
        $collection = $this->collection_extensions();

        if (!$collection)
        {
            return; // @codeCoverageIgnore
        }

        foreach ($collection as $extension)
        {
            $container->registerExtension($extension);
            $container->loadFromExtension($extension->getAlias());
        }
    }

    /**
     * @return array
     */
    private function collection_extensions()
    {
        return [

            new Extension\ApplicationExtension($this->app)

        ];
    }

    /**
     * @param ContainerBuilder $container
     */
    private function apply_services(ContainerBuilder $container)
    {
        $collection = $this->collect_services();

        if (!$collection)
        {
            return; // @codeCoverageIgnore
        }

        $loader = new YamlFileLoader($container, new FileLocator(getcwd()));

        foreach ($collection as $service_pathname)
        {
            $loader->load($service_pathname);
        }
    }

    /**
     * @return array
     */
    private function collect_services()
    {
        $collection = [];

        foreach (array_keys($this->app->config['config-path']) as $path)
        {
            $pathname = $path . DIRECTORY_SEPARATOR . self::CONFIG_FILENAME;

            if (!file_exists($pathname))
            {
                continue;
            }

            $collection[] = $pathname;
        }

        return $collection;
    }

    /**
     * @param ContainerBuilder $container
     * @param ContainerPathname $pathname
     * @param string $class
     */
    private function dump_container(ContainerBuilder $container, ContainerPathname $pathname, $class)
    {
        $dumper = new PhpDumper($container);

        file_put_contents($pathname, $dumper->dump([ 'class' => $class ]));
    }
}