<?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:----NDEzMDY4NTYyOTUxODk1OSAzNTI2NDU2ODAwMTM2NTkzIDEyNTM0NzIwNzcxMjMzMTg=