<?php

namespace Finite\Event;

use Finite\Event\Callback\Callback;
use Finite\Event\Callback\CallbackBuilder;
use Finite\StateMachine\StateMachineInterface;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\OptionsResolver\Options;
use Symfony\Component\OptionsResolver\OptionsResolver;

/**
 * Manage callback-to-event bindings by trigger spec definition.
 *
 * @author Yohan Giarelli <yohan@frequence-web.fr>
 */
class CallbackHandler
{
    /**
     * @deprecated To be removed in 2.0
     */
    const ALL = 'all';

    /**
     * @var EventDispatcherInterface
     */
    protected $dispatcher;

    /**
     * @var OptionsResolver
     */
    protected $specResolver;

    /**
     * @param EventDispatcherInterface $dispatcher
     */
    public function __construct(EventDispatcherInterface $dispatcher)
    {
        $this->dispatcher = $dispatcher;
        $this->specResolver = new OptionsResolver();
        $this->specResolver->setDefaults(
            array(
                'on' => self::ALL,
                'from' => self::ALL,
                'to' => self::ALL,
            )
        );

        $this->specResolver->setAllowedTypes('on', array('string', 'array'));
        $this->specResolver->setAllowedTypes('from', array('string', 'array'));
        $this->specResolver->setAllowedTypes('to', array('string', 'array'));

        $toArrayNormalizer = function (Options $options, $value) {
            return (array) $value;
        };

        $this->specResolver->setNormalizer('on', $toArrayNormalizer);
        $this->specResolver->setNormalizer('from', $toArrayNormalizer);
        $this->specResolver->setNormalizer('to', $toArrayNormalizer);
    }

    /**
     * @param StateMachineInterface|Callback $smOrCallback
     * @param callable                       $callback
     * @param array                          $spec
     *
     * @return CallbackHandler
     */
    public function addBefore($smOrCallback, $callback = null, array $spec = array())
    {
        $this->add($smOrCallback, FiniteEvents::PRE_TRANSITION, $callback, $spec);

        return $this;
    }

    /**
     * @param StateMachineInterface|Callback $smOrCallback
     * @param callable                       $callback
     * @param array                          $spec
     *
     * @return CallbackHandler
     */
    public function addAfter($smOrCallback, $callback = null, array $spec = array())
    {
        $this->add($smOrCallback, FiniteEvents::POST_TRANSITION, $callback, $spec);

        return $this;
    }

    /**
     * @param StateMachineInterface|Callback $smOrCallback
     * @param string                         $event
     * @param callable                       $callable
     * @param array                          $specs
     *
     * @return CallbackHandler
     */
    protected function add($smOrCallback, $event, $callable = null, array $specs = array())
    {
        if ($smOrCallback instanceof Callback) {
            $this->dispatcher->addListener($event, $smOrCallback);

            return $this;
        }

        trigger_error(
            'Use of CallbackHandler::add without a Callback instance is deprecated and will be removed in 2.0',
            E_USER_DEPRECATED
        );

        $specs = $this->specResolver->resolve($specs);
        $callback = CallbackBuilder::create($smOrCallback, $specs['from'], $specs['to'], $specs['on'], $callable)->getCallback();

        $this->dispatcher->addListener($event, $callback);

        return $this;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTU0NTM1NzQ5NTEyMjAwMiA5NzMxNTUxODk2OTYyMjY3IDMyMjY3MDA5MTM0NDUxMjM=