<?php
    session_start();
    $local = "localhost";
    $login = "root";
    $pass = "root";
    $name = "forum";
    $link = mysqli_connect($local,$login,$pass,$name);

    $slug = $params['topicSlug'];
    $topic = str_replace("-",' ',$slug);
    if(!empty($_POST['title']) && !empty($_POST['content'])){
        $title = $_POST['title'];
        $content = $_POST['content'];
        if(preg_match("#[a-zA-Z_-]{0,30}#",$title)){
            $query = mysqli_query($link,"SELECT * FROM fast WHERE title='$title'");
            $test = mysqli_fetch_assoc($query);
            if(empty($test)){
                $fastSlug = $title;
                $fastSlug = str_replace(" ","-",$fastSlug);
                $query = mysqli_query($link,"SELECT * FROM topics WHERE topic_name = '$topic'");
                $res = mysqli_fetch_assoc($query);
                $topic_id = $res['id'];
                $query = mysqli_query($link,"INSERT INTO fast SET slug='$fastSlug',title='$title',content = '$content',topic_id='$topic_id'");
            }
        }
    }


    if($_SESSION['auto'] === true){
        $query = mysqli_query($link,"SELECT * FROM fast
            LEFT JOIN topics ON topics.id = fast.topic_id
            WHERE topic_name = '$topic'") or die(mysqli_error($link));
            $data = [];
            while($row = mysqli_fetch_assoc($query)){
                $data[] = $row;
            };
            $content = '';
            foreach($data as $value){
                $content .= "<a href='/main/".$slug."/".$value['title']."'>".$value['title']."</a></br>";
            }
            $page = [
                'title' => 'wall',
                'content' => $content
            ];
?>
<form action="" method="POST">
    <input name="title" placeholder="Title"></br>
    <textarea name="content"></textarea></br>
    <input type='submit'></br>
</form>
<?php
            return $page;
        } else {
            header("Location: /auto");
        }
?>