feat: add hook driver backward compatible with wp-builder

Signed-off-by: Bart Jaskulski <bjaskulski@protonmail.com>

src/HookDriver/Legacy/HookableParent.php

+<?php
+
+namespace WPDesk\Init\HookDriver\Legacy;
+
+use WPDesk\PluginBuilder\Plugin\Conditional;
+use WPDesk\PluginBuilder\Plugin\Hookable;
+use WPDesk\PluginBuilder\Plugin\HookablePluginDependant;
+
+trait HookableParent {
+
+	/** @var HooksRegistry|null */
+	private $registry;
+
+	/**
+	 * @param class-string<Hookable>|Hookable $hookable_object
+	 */
+	public function add_hookable( $hookable_object ) {
+		if ( $this->registry === null ) {
+			$this->registry = HooksRegistry::instance();
+		}
+
+		$this->registry->add( $hookable_object );
+	}
+
+	/**
+	 * @param class-string<Hookable> $class_name
+	 *
+	 * @return false|Hookable
+	 */
+	public function get_hookable_instance_by_class_name( $class_name ) {
+		if ( $this->registry === null ) {
+			return;
+		}
+
+		foreach ( $this->registry as $hookable_object ) {
+			if ( $hookable_object instanceof $class_name ) {
+				return $hookable_object;
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * Run hooks method on all hookable objects.
+	 */
+	protected function hooks_on_hookable_objects() {
+		if ( $this->registry === null ) {
+			return;
+		}
+
+		foreach ( $this->registry as $hookable_object ) {
+			if (
+				$hookable_object instanceof Conditional &&
+				! $hookable_object::is_needed()
+			) {
+				continue;
+			}
+
+			if ( $hookable_object instanceof HookablePluginDependant ) {
+				$hookable_object->set_plugin( $this );
+			}
+			$hookable_object->hooks();
+		}
+	}
+
+
+}

src/HookDriver/Legacy/HooksRegistry.php

+<?php
+
+namespace WPDesk\Init\HookDriver\Legacy;
+
+use Psr\Container\ContainerInterface;
+use Traversable;
+use WPDesk\PluginBuilder\Plugin\Hookable;
+
+/**
+ * @implements IteratorAggregate<int,Hookable>
+ */
+final class HooksRegistry implements \IteratorAggregate
+{
+	private static $instance;
+
+	/** @var array<class-string<Hookable>|Hookable> */
+	private $callbacks = [];
+
+	private $container;
+
+	private function __construct() {}
+
+	public function inject_container( ContainerInterface $c ) {
+		$this->container = $c;
+	}
+
+	public static function instance(): HooksRegistry {
+		if ( self::$instance === null ) {
+			self::$instance = new self();
+		}
+
+		return self::$instance;
+	}
+
+	public function getIterator(): Traversable {
+		return new \ArrayIterator(
+			array_map(
+				function ( $hookable ) {
+					if ( is_string( $hookable ) ) {
+						return $this->container->get( $hookable );
+					}
+
+					return $hookable;
+				},
+				$this->callbacks
+			)
+		);
+	}
+
+	public function add( $hookable ) {
+		$this->callbacks[] = $hookable;
+	}
+}

src/HookDriver/LegacyHookableDriver.php

@@ -5,6 +5,7 @@ namespace WPDesk\Init\HookDriver;
 
 use Psr\Container\ContainerInterface;
 use WPDesk\Init\Configuration\ReadableConfig;
+use WPDesk\Init\HookDriver\Legacy\HooksRegistry;
 use WPDesk\Init\Plugin;
 
 class LegacyHookableDriver implements HookDriver {
@@ -15,6 +16,8 @@ class LegacyHookableDriver implements HookDriver {
 		$class_name = $info->get_class_name();
 
 		$p = new $class_name($info);
+		$reg = HooksRegistry::instance();
+		$reg->inject_container($container);
 		add_action('plugins_loaded', [$p, 'init'], -45);
 	}