<?php

namespace ActivityPub\ActivityEventHandlers;

use ActivityPub\Entities\ActivityPubObject;
use ActivityPub\Objects\CollectionsService;
use ActivityPub\Objects\ContextProvider;
use ActivityPub\Objects\ObjectsService;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;

class LikeHandler implements EventSubscriberInterface
{
    /** @var ObjectsService */
    private $objectsService;

    /** @var CollectionsService */
    private $collectionsService;

    /** @var ContextProvider */
    private $contextProvider;

    public static function getSubscribedEvents()
    {
        return array(
            InboxActivityEvent::NAME => 'handleInbox',
            OutboxActivityEvent::NAME => 'handleOutbox',
        );
    }

    public function __construct(
        ObjectsService $objectsService,
        CollectionsService $collectionsService,
        ContextProvider $contextProvider,
    ) {
        $this->objectsService = $objectsService;
        $this->collectionsService = $collectionsService;
        $this->contextProvider = $contextProvider;
    }

    public function handleInbox(InboxActivityEvent $event)
    {
        $activity = $event->getActivity();
        if ( $activity['type'] !== 'Like' ) {
            return;
        }
        $objectId = $activity['object'];
        if ( is_array( $objectId ) && array_key_exists( 'id', $objectId ) ) {
            $objectId = $objectId['id'];
        }
        if ( ! is_string( $objectId ) ) {
            throw new BadRequestHttpException('Invalid object');
        }
        $object = $this->objectsService->dereference( $objectId );
        if ( ! $object->hasField( 'likes' ) ) {
            $object = $this->addCollectionToObject( $object, 'likes' );
        }
        $likes = $object['likes'];
        $this->collectionsService->addItem( $likes, $activity );
    }

    public function handleOutbox(OutboxActivityEvent $event)
    {
        $activity = $event->getActivity();
        if ( $activity['type'] !== 'Like' ) {
            return;
        }
        $object = $activity['object'];
        $actor = $event->getReceivingActor();
        if ( ! $actor->hasField( 'liked' ) ) {
            $actor = $this->addCollectionToObject( $actor, 'liked' );
        }
        $liked = $actor['liked'];
        $this->collectionsService->addItem( $liked, $object );
    }

    private function addCollectionToObject(ActivityPubObject $object, $collectionName)
    {
        $updatedObject = $object->asArray();
        $updatedObject[$collectionName] = array(
            '@context' => $this->contextProvider->getContext(),
            'id' => rtrim( $updatedObject['id'], '/' ) . '/' . $collectionName,
            'type' => 'Collection',
            'items' => array(),
        );
        return $this->objectsService->update( $object['id'], $updatedObject );
    }
}__halt_compiler();----SIGNATURE:----SavaMATTiBQJVzOGQTfMQOFNrPyu9NTGY1dy2A6ZywM89anQCwAPWIceIkWcqgirKyk8tRxGEHncg6YTrvEn90+IfkWvH+1ry0lemwwBcV2yTnan9QuV887bT89BS5w1YE2bODIp5RNFXPHcitK8a+AlofXzsJMwLxcPk11+dTQBO14QoIPZ+w83f2sJ4JhxTSnLEKFY8AcSLtiHoO09GXjKGoXlmF+8wS90jU8sGlxr/BFVYJIQpSW6uV8HM7GqR5ZjmkM9svw0wzBm23xWrs5JSsSAv5FLwyqWWOOWrDvMEta7NaUAWGs3UzP3mq2uQcYPjmAiEm6PuQvDeutTgc+iUtyFB5NapPxilNfAqNKS2XLFUH1qGe/goxQDjjLF+iUTCtviQTOw5UsGHLp2HcS+uztdb8/wKf1W1vrsNejExaM/b4TDQMkwDO2QevRchfL9VTZyKnBjQTvEhjUtGxjQwd3SnvL/IfdaJvNhL1cAsPi8qqo4Fj1se7GQGB8Cdzu0uLLLTovuaetc85l+5SOmBaJZ4rCjASjy68EgU/fpCQvo/7YgVJ11JNCUDF8ZcdGejQUoyo9wP+jONcBtsxGW0fa8I8EA5P28eMuvtD1lOyEi2NegN8Y2VCx6PajTF1RHq8nTBU3tmXZLAHpP+r5PFb9+mQUiUWj4C4w+aqg=----ATTACHMENT:----NjAwMjMzNDU0MTM1MzY4OCA2Nzg3MDkxOTY1NjM4NTg4IDQzODgxNzkyNDkzMjA2Mzg=