Add post meta for custom post type with custom fields on publish

Hello,

I am trying to trigger a function when a custom post type with custom fields is edit or new. For the custom fields i am using advance custom field plugin. And this is the function and hook

function insert_table_my_products($post_id, $post) {
    if ($post->post_type == 'my-custom-products') {
        global $wpdb;
        global $post;
        $custom_meta = get_post_meta($post->ID);

       // echo ('insert message');
        //print_r(  get_post_meta(get_the_ID(), 'product_code' ));
        //print_r($custom_meta);
        //print_r($post);
        //exit();
        if (class_exists('Attachments')) {
            $attachments = new Attachments('my_attachments');
            if ($attachments->exist()) {
                $my_index = 0;
                $use_image = new SplFileInfo($attachments->url($my_index));
                $use_main_image = $use_image->getFilename();
            } else {
                $use_main_image = 'product_holder.jpg';
            }
        } else {
            $use_main_image = 'product_holder_no_attach.jpg';
        }
        $wpdb->insert(
                'tique_products', array(
            'product_code' => $custom_meta['product_code'][0],
            'product_name' => $post->post_title,
            'product_img_name' => $use_main_image,
            'price' => $custom_meta['price_patch'][0], //$POST['acf-field-price_patch'],
            'product_inventory' => $custom_meta['stock'][0], //$POST['fields[field_54df75e760b5e]'],
                )
        );
    }
}
add_action('publish_my-custom-products', 'insert_table_my_products', 10, 2);

Main problem i am having the $custom_meta returns empty???

I need all specific post data and custom field data to insert in a custom table