SymfonyExtension v2.0: proof of concept

src/Bundle/DependencyInjection/FriendsOfBehatSymfonyExtensionExtension.php

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+<?php
+
+declare(strict_types=1);
+
+namespace FriendsOfBehat\SymfonyExtension\Bundle\DependencyInjection;
+
+use Behat\Behat\Context\Context;
+use Behat\Mink\Mink;
+use Behat\Mink\Session;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\HttpKernel\DependencyInjection\Extension;
+
+final class FriendsOfBehatSymfonyExtensionExtension extends Extension implements CompilerPassInterface
+{
+    public function load(array $configs, ContainerBuilder $container): void
+    {
+        $this->registerBehatContainer($container);
+        $this->provideMinkIntegration($container);
+
+        $container
+            ->registerForAutoconfiguration(Context::class)
+            ->addTag('fob.context')
+        ;
+    }
+
+    public function process(ContainerBuilder $container): void
+    {
+        foreach ($container->findTaggedServiceIds('fob.context') as $serviceId => $attributes) {
+            $container->findDefinition($serviceId)->setPublic(true);
+        }
+    }
+
+    private function registerBehatContainer(ContainerBuilder $container): void
+    {
+        $behatServiceContainerDefinition = new Definition(ContainerInterface::class);
+        $behatServiceContainerDefinition->setPublic(true);
+        $behatServiceContainerDefinition->setSynthetic(true);
+
+        $container->setDefinition('behat.service_container', $behatServiceContainerDefinition);
+    }
+
+    private function provideMinkIntegration(ContainerBuilder $container): void
+    {
+        $minkDefinition = new Definition(Mink::class, ['mink']);
+        $minkDefinition->setPublic(true);
+        $minkDefinition->setFactory([new Reference('behat.service_container'), 'get']);
+
+        $container->setDefinition('behat.mink', $minkDefinition);
+
+        $minkDefaultSessionDefinition = new Definition(Session::class);
+        $minkDefaultSessionDefinition->setPublic(true);
+        $minkDefaultSessionDefinition->setLazy(true);
+        $minkDefaultSessionDefinition->setFactory([new Reference('behat.mink'), 'getSession']);
+
+        $container->setDefinition('behat.mink.default_session', $minkDefaultSessionDefinition);
+        $container->setAlias(Session::class, 'behat.mink.default_session');
+    }
+}

src/Bundle/FriendsOfBehatSymfonyExtensionBundle.php

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+<?php
+
+declare(strict_types=1);
+
+namespace FriendsOfBehat\SymfonyExtension\Bundle;
+
+use Symfony\Component\HttpKernel\Bundle\Bundle;
+
+final class FriendsOfBehatSymfonyExtensionBundle extends Bundle
+{
+}