Auto Generate Post Slug

Good day!

function rm_martins_cpt_permalink_change($data, $postarr) {
if ($data['post_type'] == 'video') {
                $time = time();
 $data['post_name'] = md5($time);
 return $data;
 } else {
           return $data;
       }
}
add_filter('wp_insert_post_data','rm_martins_cpt_permalink_change',10,2);

I found this code online. It’s working but every time I update my post, post slug keeps changing. I would like this function to only run if post is to be publish only.

Thanks and God Bless!

[Please post code snippets between backticks or use the code button.]