StoppableBinder.php

<?php

declare(strict_types=1);

namespace WPDesk\Init\Binding\Binder;

use Psr\Container\ContainerInterface;
use WPDesk\Init\Binding\ComposableBinder;
use WPDesk\Init\Binding\StoppableBinder as Stop;
use WPDesk\Init\Binding\Definition;
use WPDesk\Init\Binding\Binder as BinderInstance;

class StoppableBinder implements ComposableBinder {

	private ContainerInterface $container;

	/** @var Binder */
	private $binder;

	private bool $should_stop = false;

	public function __construct( BinderInstance $b, ContainerInterface $c ) {
		$this->binder    = $b;
		$this->container = $c;
	}

	public function can_bind( Definition $def ): bool {
		return $this->binder->can_bind( $def );
	}

	public function bind( Definition $def ): void {
		if ( $this->should_stop === true ) {
			return;
		}

		$this->binder->bind( $def );

		if ( $this->can_be_stoppable( $def ) ) {
			$binding = $this->container->get( $def->value() );
			if ( $binding instanceof Stop && $binding->should_stop() ) {
				$this->should_stop = true;
			}
		}
	}

	private function can_be_stoppable( Definition $def ): bool {
		return is_string( $def->value() ) && class_exists( $def->value() );
	}
}