<?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:----NTM1ODI1OTU4NzY1OTY0OSAyMjE3MTQyODU4OTkxMDY1IDYzMzM5Nzk5Nzc1MTExMTU=