<?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:----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----ATTACHMENT:----NjgwNTcyNzg5MzQ3ODE4IDczMzQzODQ5Nzk0OTMzMzMgMjE5MDgzNTU4MTE4MTE0Mw==