<?php
/**
 * GNU social - a federating social network
 *
 * ActivityPubPlugin implementation for GNU Social
 *
 * LICENCE: This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @category  Plugin
 * @package   GNUsocial
 * @author    Diogo Cordeiro <diogo@fc.up.pt>
 * @author    Daniel Supernault <danielsupernault@gmail.com>
 * @copyright 2018 Free Software Foundation http://fsf.org
 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link      https://www.gnu.org/software/social/
 */
if (!defined ('GNUSOCIAL')) {
        exit (1);
}

/**
 * ActivityPub Attachment representation
 *
 * @category  Plugin
 * @package   GNUsocial
 * @author    Diogo Cordeiro <diogo@fc.up.pt>
 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link      http://www.gnu.org/software/social/
 */
class Activitypub_attachment extends Managed_DataObject
{
        /**
         * Generates a pretty array from an Attachment object
         *
         * @author Diogo Cordeiro <diogo@fc.up.pt>
         * @param Attachment $attachment
         * @return pretty array to be used in a response
         */
        public static function attachment_to_array ($attachment)
        {
                $res = [
                        '@context'  => [
                                "https://www.w3.org/ns/activitystreams",
                                [
                                        "@language" => "en"
                                ]
                        ],
                        'id'       => $attachment->getID (),
                        'mimetype' => $attachment->mimetype,
                        'url'      => $attachment->getUrl (),
                        'size'     => intval($attachment->size), // $attachment->getSize ()
                        'title'    => $attachment->getTitle (),
                        'meta'     => null
                ];

                // Image
                if (substr ($res["mimetype"], 0, 5) == "image")
                {
                        $res["meta"]= [
                                'width'  => $attachment->width,
                                'height' => $attachment->height
                        ];
                }

                return $res;
        }
}