redmine-bundle/src/DependencyInjection/MagdevRedmineExtension.php

<?php declare(strict_types=1);

namespace Magdev\RedmineBundle\DependencyInjection;

use Magdev\RedmineBundle\Client\RedmineClient;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Extension\Extension;

/**
 * @author Marco Grätsch <magdev3.0@gmail.com>
 */
final class MagdevRedmineExtension extends Extension
{
    public function load(array $configs, ContainerBuilder $container)
    {
        $config = $this->processConfiguration(new Configuration(), $configs);

        if (!isset($config['default_connection'])) {
            $config['default_connection'] = array_key_first($config['connections']);
        }

        foreach ($config['connections'] as $name => $connection) {
            $id = sprintf('magdev.redmine.%s', $name);

            $container->register($id, RedmineClient::class)
                ->setArguments([$connection['url'], $connection['apikey']]);
            $container->registerAliasForArgument($id, RedmineClient::class, "{$name}Client");

            if ($name === $config['default_connection']) {
                $container->setAlias(RedmineClient::class, $id);
            }
        }
    }
}