Wordpress wp_update_post not updating post_name - php

Question

I have a requirement in WordPress, where , if the taxonomy term string is equal to post title, the update the slug (since the permalink rules fail in this case).
My code is :
add_action('save_post', 'change_default_slug', 10,2);
function change_default_slug($post_id, $post) {
error_log($post_id);
error_log($post->post_title);
error_log($post->post_name);
$taxonomies=get_taxonomies('','names');
$terms = wp_get_post_terms($post->ID, $taxonomies, array("fields" => "names"));
$terms = array_map('strtolower', $terms);
error_log('terms :' . json_encode($terms));
$title = strtolower($post->post_title);
error_log('title : ' . $title);
if(in_array($title, $terms)) {
error_log('yessss');
$args = array (
'ID' => $post->ID,
'post_name' => $post->post_name . "-post"
);
$result = wp_update_post($update_args);
error_log('result');
error_log(json_encode($result));
} else {
error_log('noooooooo');
}
}
On required post I am getting logs : Yesss result 0.
The slug is not updating.
Please help on the same. I have tried literally all solutions available for this issue. It has to be done via functions.php

Answer 1

I was finally able to solve it using : wp_insert_post()
$taxonomies=get_taxonomies('','names');
$terms = wp_get_post_terms($post->ID, $taxonomies, array("fields" => "all"));
foreach($terms as $term) {
if($term->taxonomy == 'category'){
$categories[] = $term->term_id;
} else if($term->taxonomy == 'post_tag'){
$tags[] = $term->term_id;
}
}
.
.
.
//detach the hook to avoid infinite looping of the hook on post insert
remove_action('save_post', 'change_default_slug', 10,2);
//insert post
$result = wp_insert_post($post, true);
//attach post tags to the current post (since not by default attached)
wp_set_post_terms($post_id,$tags,'post_tag');
//attach post categories to the current post (since not by default attached)
wp_set_post_terms($post_id,$categories,'category');
//re-activate the hook
add_action('save_post', 'change_default_slug', 10,2);