<?php

namespace PhpJsonRpc\Common\Interceptor;

/**
 * Based on "Chain of Responsibility" pattern
 */
class Interceptor
{
    /**
     * @var Interceptor
     */
    private $next;

    /**
     * @var callable
     */
    private $callback;

    /**
     * Chain constructor.
     */
    private function __construct()
    {
        $this->next     = null;
        $this->callback = null;
    }

    /**
     * @return Interceptor
     */
    public static function createBase(): Interceptor
    {
        return new Interceptor();
    }

    /**
     * @param callable $callback
     *
     * @return Interceptor
     */
    public static function createWith(callable $callback): Interceptor
    {
        $element = new Interceptor();
        $element->callback = $callback;

        return $element;
    }

    /**
     * @param Interceptor $element
     *
     * @return $this
     */
    public function add(Interceptor $element)
    {
        if ($this->next) {
            $this->next->add($element);
        } else {
            $this->next = $element;
        }

        return $this;
    }

    /**
     * @param AbstractContainer $container
     *
     * @return mixed
     */
    public function handle(AbstractContainer $container): AbstractContainer
    {
        // Execute callback and pass result next chain
        if (is_callable($this->callback)) {
            $result = call_user_func($this->callback, $container);

            if (!$this->next) {
                return $result;
            }

            return $this->next->handle($result);
        }

        // End of chain
        if (!$this->next) {
            return $container;
        }

        // Execute next chain
        return $this->next->handle($container);
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NDU3MzczOTI4MTU0ODQ5NyA0NTIwMTQ0OTIwNzM0NTY0IDI2OTkyOTM2MzA2OTE2NTA=