Conditional: IF current user has NOT commented on current po

https://wordpress.stackexchange.com/questions/295188/conditional-if-current-user-has-not-commented-on-current-post/295211

<?php
wp_reset_postdata();
$post_id = get_the_ID();          // ID of the current post.
$user_id = get_current_user_id(); // ID of the current user.
$post_author_id = get_post_field( 'post_author', $post_id );
$comment_count = 0;

// Get the number of comments made by the current user on the current post.
if ( $user_id && $post_author_id != $user_id ) {
    $comment_count = get_comments( array(
        'post_id' => $post_id,
        'user_id' => $user_id,
        'count'   => true,
    ) );
}

// The user has not yet commented on the current post. So do the something.
// Or, the user has already commented; but the post is his or her own post.
if ( ! $comment_count ) { ?>
please leave a response
<?php } else { ?>
thanks for your response
<?php } ?>