castopod/app/Libraries/ActivityPub/Activities/AnnounceActivity.php

<?php

/**
 * Activity objects are specializations of the base Object type
 * that provide information about actions that have either
 * already occurred, are in the process of occurring,
 * or may occur in the future.
 *
 * @copyright  2021 Podlibre
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
 * @link       https://castopod.org/
 */

namespace ActivityPub\Activities;

use ActivityPub\Core\Activity;

class AnnounceActivity extends Activity
{
    /**
     * @var string
     */
    protected $type = 'Announce';

    public function __construct($reblogNote)
    {
        $this->actor = $reblogNote->actor->uri;
        $this->object = $reblogNote->reblog_of_note->uri;

        $this->published = $reblogNote->published_at->format(DATE_W3C);

        $this->cc = [
            $reblogNote->actor->uri,
            $reblogNote->actor->followers_url,
        ];
    }
}