streams/Code/Module/Vote.php

<?php

namespace Code\Module;

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

class Vote extends Controller
{

    public function init()
    {

        $ret = ['success' => false, 'message' => EMPTY_STR];

        $channel = App::get_channel();

        if (!$channel) {
            $ret['message'] = t('Permission denied.');
            json_return_and_die($ret);
        }


        $fetch = null;
        $id = argv(1);

        if (is_array($_REQUEST['answer'])) {
            $response = [];
            foreach ($_REQUEST['answer'] as $answer) {
                $response[] = trim($answer);
            }
        }
        else {
            $response = trim($_REQUEST['answer']);
        }

        if ($id) {
            $fetch = q(
                "select * from item where id = %d limit 1",
                intval($id)
            );
        }
        $obj = null;
        if ($fetch) {
            $obj = json_decode($fetch[0]['obj'], true);
            if ($fetch[0]['obj_type'] !== 'Question') {
                // Check to see if there is a poll inside a share tag in this item and use that instaed.
                if (preg_match_all("/\[share(.*?)message_id='(.*?)'(.*?)\[\/share]/ism", $fetch[0]['body'], $matches, PREG_SET_ORDER)) {
                    foreach ($matches as $match) {
                        $fetch = q("select * from item where mid = '%s' and uid = %d",
                            dbesc($match[2]),
                            intval($fetch[0]['uid'])
                        );
                        if ($fetch && $fetch[0]['obj_type'] === 'Question') {
                            $obj = json_decode($fetch[0]['obj'], true);
                        }
                    }
                }
            }
        }
        if (! $obj) {
            $ret['message'] = t('Poll not found.');
            json_return_and_die($ret);
        }

        $valid = false;

        if ($obj['oneOf']) {
            foreach ($obj['oneOf'] as $selection) {
                      // logger('selection: ' . '"' . $selection['name'] . '"');
                      // logger('response: ' . '"' . $response . '"');
                if ($selection['name'] && trim($selection['name']) === $response) {
                    $valid = true;
                }
            }
        }

        $choices = [];
        if ($obj['anyOf']) {
            foreach ($obj['anyOf'] as $selection) {
                $choices[] = trim($selection['name']);
            }
            foreach ($response as $res) {
                if (!in_array($res, $choices)) {
                    $valid = false;
                    break;
                }
                $valid = true;
            }
        }

        if (!$valid) {
            $ret['message'] = t('Invalid response.');
            json_return_and_die($ret);
        }

        if (!is_array($response)) {
            $response = [$response];
        }

        foreach ($response as $res) {
            $item = [];

            $item['aid'] = $channel['channel_account_id'];
            $item['uid'] = $channel['channel_id'];
            $item['item_origin'] = true;
            $item['parent'] = $fetch[0]['id'];
            $item['parent_mid'] = $fetch[0]['parent_mid'];
            $item['thr_parent'] = $fetch[0]['mid'];
            $item['uuid'] = new_uuid();
            $item['mid'] = z_root() . '/item/' . $item['uuid'];
            $item['verb'] = 'Create';
            $item['title'] = $res;
            $item['author_xchan'] = $channel['channel_hash'];
            $item['owner_xchan'] = $fetch[0]['owner_xchan'];
            $item['allow_cid'] =  $item['allow_gid'] = $item['deny_cid'] = $item['deny_gid'] = '';
            $item['item_private'] = $fetch[0]['item_private'];

            // These two are placeholder values that will be reset after
            // we encode the item

            $item['obj_type'] = 'Note';
            $item['author'] = Channel::from_id($channel['channel_id']);

            $item['obj'] = Activity::encode_item($item, ((get_config('system', 'activitypub', ACTIVITYPUB_ENABLED)) ? true : false));

            // now reset the placeholders

            $item['obj_type'] = 'Answer';
            unset($item['author']);

            $x = item_store($item);

            retain_item($fetch[0]['id']);

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

        }
        $ret['success'] = true;
        $ret['message'] = t('Response submitted. Updates may not appear instantly.');
        json_return_and_die($ret);
    }
}