streams/Code/Module/React.php

<?php

namespace Code\Module;

use App;
use Code\Web\Controller;
use Code\Lib\Activity;
use Code\Daemon\Run;
use Code\Lib\Channel;

class React extends Controller
{

    public function get()
    {

        if (!local_channel()) {
            return;
        }

        $sys = Channel::get_system();
        $channel = App::get_channel();

        $postid = $_REQUEST['postid'];

        if (!$postid) {
            return;
        }

        $emoji = $_REQUEST['emoji'];


        if ($emoji) {
            $i = q(
                "select * from item where id = %d and uid = %d",
                intval($postid),
                intval(local_channel())
            );

            if (!$i) {
                // try the global public stream
                $i = q(
                    "select * from item where id = %d and uid = %d",
                    intval($postid),
                    intval($sys['channel_id'])
                );
                // try the local public stream
                if (!$i) {
                    $i = q(
                        "select * from item where id = %d and item_wall = 1 and item_private = 0",
                        intval($postid)
                    );
                }

                if ($i && local_channel() && (!Channel::is_system(local_channel()))) {
                    $i = [copy_of_pubitem($channel, $i[0]['mid'])];
                    $postid = (($i) ? $i[0]['id'] : 0);
                }
            }

            if (!$i) {
                return;
            }

            $item = array_shift($i);

            $n = [];
            $n['aid'] = $channel['channel_account_id'];
            $n['uid'] = $channel['channel_id'];
            $n['item_origin'] = true;
            $n['item_type'] = $item['item_type'];
            $n['parent'] = $postid;
            $n['parent_mid'] = $item['mid'];
            $n['uuid'] = new_uuid();
            $n['mid'] = z_root() . '/item/' . $n['uuid'];
            $n['verb'] = 'emojiReaction';
            $n['body'] = "\n\n" . '[img=32x32]' . z_root() . '/images/emoji/' . $emoji . '.png[/img]' . "\n\n";
            $n['author_xchan'] = $channel['channel_hash'];

            $n['obj'] = Activity::fetch_item(['id' => $item['mid']]);
            $n['obj_type'] = ((array_path_exists('obj/type', $n)) ? $n['obj']['type'] : EMPTY_STR);

            $n['tgt_type'] = 'Image';

            $n['target'] = [
                'type' => 'Image',
                'name' => $emoji,
                'url' => z_root() . '/images/emoji/' . $emoji . '.png'
            ];

            $x = item_store($n);

            retain_item($postid);

            if ($x['success']) {
                $nid = $x['item_id'];
                Run::Summon(['Notifier', 'like', $nid]);
            }
        }
    }
}