<?php

namespace ActivityPub\Objects;

use ActivityPub\Entities\ActivityPubObject;

class BlockService
{
    /** @var ObjectsService */
    private $objectsService;

    public function __construct(ObjectsService $objectsService)
    {
        $this->objectsService = $objectsService;
    }

    /**
     * Returns an array of actorIds that are the object of a block activity
     * by $blockingActorId
     *
     * @param string $blockingActorId
     * @return array
     */
    public function getBlockedActorIds($blockingActorId)
    {
        $blockQuery = array(
            'type' => 'Block',
            'actor' => array(
                'id' => $blockingActorId,
            ),
        );
        $blocks = $this->objectsService->query( $blockQuery );

        // TODO this is janky and slow - there's probably a better way
        $undoQuery = array(
            'type' => 'Undo',
            'actor' => array(
                'id' => $blockingActorId,
            ),
            'object' => array(
                'type' => 'Block',
            ),
        );
        $undos = $this->objectsService->query( $undoQuery );
        $undoneBlocks = array();
        foreach ( $undos as $undo ) {
            if ( $undo->hasField( 'object' ) ) {
                $undoObject = $undo['object'];
                if ( is_string( $undoObject ) ) {
                    $undoneBlocks[$undoObject] = 1;
                } else if ( $undoObject instanceof ActivityPubObject && $undoObject->hasField( 'id' ) ) {
                    $undoneBlocks[$undoObject['id']] = 1;
                }
            }
        }

        $blockedIds = array();
        foreach ( $blocks as $block ) {
            if ( array_key_exists( $block['id'], $undoneBlocks ) ) {
                continue;
            }
            if ( $block->hasField( 'object' ) ) {
                $blockedActor = $block['object'];
                if ( is_string( $blockedActor ) ) {
                    $blockedIds[] = $blockedActor;
                } else {
                    $blockedIds[] = $blockedActor['id'];
                }
            }
        }
        return $blockedIds;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----Njk2NTE4MDM5MzA3MDg4MCAzMDk1MDk1MjUxMzM0MjYxIDkzMTQwMTg1MjYyMzg0MTk=