pixelfed/pixelfed

<?php

namespace App\Transformer\ActivityPub\Verb;

use App\Status;
use League\Fractal;
use App\Models\CustomEmoji;
use Illuminate\Support\Str;

class CreateNote extends Fractal\TransformerAbstract
{
    public function transform(Status $status)
    {
        $mentions = $status->mentions->map(function ($mention) {
            $webfinger = $mention->emailUrl();
            $name = Str::startsWith($webfinger, '@') ? 
                $webfinger :
                '@' . $webfinger;
            return [
                'type' => 'Mention',
                'href' => $mention->permalink(),
                'name' => $name
            ];
        })->toArray();

        if($status->in_reply_to_id != null) {
            $parent = $status->parent()->profile;
            if($parent) {
                $webfinger = $parent->emailUrl();
                $name = Str::startsWith($webfinger, '@') ? 
                    $webfinger :
                    '@' . $webfinger;
                $reply = [
                    'type' => 'Mention',
                    'href' => $parent->permalink(),
                    'name' => $name
                ];
                $mentions = array_merge($reply, $mentions);
            }
        }

        $hashtags = $status->hashtags->map(function ($hashtag) {
            return [
                'type' => 'Hashtag',
                'href' => $hashtag->url(),
                'name' => "#{$hashtag->name}",
            ];
        })->toArray();

        $emojis = CustomEmoji::scan($status->caption, true) ?? [];
        $emoji = array_merge($emojis, $mentions);
        $tags = array_merge($emoji, $hashtags);

        return [
            '@context' => [
                'https://w3id.org/security/v1',
                'https://www.w3.org/ns/activitystreams',
                [
                    'Hashtag'             => 'as:Hashtag',
                    'sensitive'         => 'as:sensitive',
                    'schema'             => 'http://schema.org/',
                    'pixelfed'             => 'http://pixelfed.org/ns#',
                    'commentsEnabled'     => [
                        '@id'             => 'pixelfed:commentsEnabled',
                        '@type'         => 'schema:Boolean'
                    ],
                    'capabilities'        => [
                        '@id'             => 'pixelfed:capabilities',
                        '@container'    => '@set'
                    ],
                    'announce'            => [
                        '@id'            => 'pixelfed:canAnnounce',
                        '@type'            => '@id'
                    ],
                    'like'                => [
                        '@id'             => 'pixelfed:canLike',
                        '@type'         => '@id'
                    ],
                    'reply'                => [
                        '@id'             => 'pixelfed:canReply',
                        '@type'         => '@id'
                    ],
                    'toot'                 => 'http://joinmastodon.org/ns#',
                    'Emoji'                => 'toot:Emoji',
                    'blurhash'            => 'toot:blurhash',
                ]
            ],
            'id'                     => $status->permalink(),
            'type'                     => 'Create',
            'actor'                 => $status->profile->permalink(),
            'published'             => $status->created_at->toAtomString(),
            'to'                     => $status->scopeToAudience('to'),
            'cc'                     => $status->scopeToAudience('cc'),
            'object' => [
                'id'                 => $status->url(),
                'type'                 => 'Note',
                'summary'           => $status->is_nsfw ? $status->cw_summary : null,
                'content'           => $status->rendered ?? $status->caption,
                'inReplyTo'         => $status->in_reply_to_id ? $status->parent()->url() : null,
                'published'            => $status->created_at->toAtomString(),
                'url'                  => $status->url(),
                'attributedTo'         => $status->profile->permalink(),
                'to'                   => $status->scopeToAudience('to'),
                'cc'                 => $status->scopeToAudience('cc'),
                'sensitive'           => (bool) $status->is_nsfw,
                'attachment'          => $status->media()->orderBy('order')->get()->map(function ($media) {
                    $res = [
                        'type'      => $media->activityVerb(),
                        'mediaType' => $media->mime,
                        'url'       => $media->url(),
                        'name'      => $media->caption,
                    ];
                    if($media->blurhash) {
                        $res['blurhash'] = $media->blurhash;
                    }
                    if($media->width) {
                        $res['width'] = $media->width;
                    }
                    if($media->height) {
                        $res['height'] = $media->height;
                    }
                    return $res;
                })->toArray(),
                'tag'                 => $tags,
                'commentsEnabled'  => (bool) !$status->comments_disabled,
                'capabilities' => [
                    'announce' => 'https://www.w3.org/ns/activitystreams#Public',
                    'like' => 'https://www.w3.org/ns/activitystreams#Public',
                    'reply' => $status->comments_disabled == true ? '[]' : 'https://www.w3.org/ns/activitystreams#Public'
                ],
                'location' => $status->place_id ? [
                        'type' => 'Place',
                        'name' => $status->place->name,
                        'longitude' => $status->place->long,
                        'latitude' => $status->place->lat,
                        'country' => $status->place->country
                    ] : null,
            ]
        ];
    }
}