WP Less is More comments.php file content

<?php
/**
 * The template for displaying comments
 *
 * This is the template that displays the area of the page that contains both the current comments
 * and the comment form.
 *
 * @link https://codex.wordpress.org/Template_Hierarchy
 *
 * @package WordPress
 * @subpackage Twenty_Seventeen
 * @since 1.0
 * @version 1.0
 */

/*
 * If the current post is protected by a password and
 * the visitor has not yet entered the password we will
 * return early without loading the comments.
 */

if ( post_password_required() ) {
    return;
}

    $commenter      = wp_get_current_commenter();
    $req            = get_option( 'require_name_email' );
    $aria_req       = ( $req ? " aria-required='true'" : '' );
    $required_text  = sprintf( ' ' . __( 'Required fields are marked %s', 'wp-less-is-more' ), '<span class="required label label-danger">*</span>' );
    $user           = wp_get_current_user();
    $user_identity  = $user->exists() ? $user->display_name : '';

    $fields =  array(

    'author' => '
    <div class="form-group">
    <label for="author" class="col-sm-2 control-label">' . __( 'Name:', 'wp-less-is-more') . ( $req ? ' <span class="required label label-danger">*</span>' : '' ) . '</label>
    <div class="col-sm-9">
    <input type="text" name="author" id="author" value="' . esc_attr( $commenter['comment_author'] ) . '" size="22" tabindex="3" ' . $aria_req . ' class="form-control" '. ( $req ? 'required' : '' ) .'>
    </div>
    </div>',

    'email' =>
    '<div class="form-group">
    <label for="email" class="col-sm-2 control-label">' . __( 'Email:', 'wp-less-is-more') . ( $req ? ' <span class="required label label-danger">*</span>' : '' ) . '</label>
    <div class="col-sm-9">
    <input type="text" name="email" id="email" value="' . esc_attr( $commenter['comment_author_email'] ) . '" size="22" tabindex="2" ' . $aria_req . ' class="form-control" '. ( $req ? 'required' : '' ) .'>
    </div>
    </div>',

    'url' =>
    '<div class="form-group">
    <label for="url" class="col-sm-2 control-label">' . __( 'Website:', 'wp-less-is-more' ) . '</label>
    <div class="col-sm-9">
    <input type="text" name="url" id="url" value="' . esc_attr( $commenter['comment_author_url'] ) . '" size="22" tabindex="1" class="form-control">
    </div>
    </div>',
);
    $comments_args = array(
    'id_form'               => 'commentform',
    'class_form'            => 'comment-form form-horizontal',
    'id_submit'             => 'submit',
    'class_submit'          => 'btn btn-default active',
    'name_submit'           => __('Submit Response', 'wp-less-is-more' ),
    'title_reply'       => __( 'Write a Reply or Comment', 'wp-less-is-more' ),
    'title_reply_to'    => __( 'Write a Reply or Comment to %s', 'wp-less-is-more' ),
    'title_reply_before'    => '<hr style="margin-top: 0px;"/><strong>',
    'title_reply_after'     => '</strong><hr/>',
    'cancel_reply_before'   => '<p class="cancel-comment-reply">',
    'cancel_reply_after'    => '</p>',
    'cancel_reply_link'     => __( 'Cancel reply', 'wp-less-is-more' ) . ' <span class="glyphicon glyphicon-remove" aria-hidden="true"></span>' ,
    'submit_button'         => '<input name="%1$s" type="submit" id="%2$s" class="%3$s" value="%4$s" >',
    'submit_field'          => '<div class="form-group">
    <div class="col-sm-offset-2 col-sm-10">%1$s %2$s</div>
    </div>',
    'format'                => 'xhtml',

    'must_log_in'           => '<p class="must-log-in">' .
        sprintf(
            __( 'You must be <a href="%s">logged in</a> to post a comment.', 'wp-less-is-more' ),
            wp_login_url(
                apply_filters( 'the_permalink', get_permalink() )
            )
        ) . '</p>',

    'logged_in_as'          => '<p class="logged-in-as">' .
        sprintf(
            __( 'Logged in as <a href="%1$s">%2$s</a>. <a href="%3$s" title="Log out of this account">Log out?</a>', 'wp-less-is-more'),
                admin_url( 'profile.php' ), $user_identity, wp_logout_url(
                    apply_filters( 'the_permalink', get_permalink( ) )
                )
        ) . '</p>',

    'comment_notes_before'  => '<p class="comment-notes">' .
    __( 'Your email address will not be published.', 'wp-less-is-more') . ( $req ? $required_text : '' ) .
    '</p>',

    'comment_notes_after'   => '<div class="form-group"><div class="col-sm-9 col-sm-offset-2">' .
        sprintf(
            __( 'You may use these <abbr title="HyperText Markup Language">HTML</abbr> tags and attributes: %s', 'wp-less-is-more'),
              '<code>' . allowed_tags() . '</code>'
        ) . '</div></div>',

    'fields'                => apply_filters( 'comment_form_default_fields', $fields ),
    'comment_field'         =>
    '<div class="form-group">
    <div class="col-sm-9 col-sm-offset-2">
    <textarea name="comment" class="form-control" rows="3" ' . $aria_req . ' '. ( $req ? 'required' : '' ) .'></textarea>
    </div>
    </div>',

);

    // If comments are closed and there are no comments, let's leave a little note, shall we?
    if ( !comments_open() && !get_comments_number() ) : ?>
        <div class="well well-sm"><?php _e( 'Comments are closed for this post.', 'wp-less-is-more' ); ?></div>
    <?php
    endif;

    // You can start editing here -- including this comment!
    if ( have_comments() ) : ?>

<div id="comments" class="comments-area panel panel-info">

    <div class="panel-heading" role="button" data-toggle="collapse" href="#collapseListComments" aria-expanded="true" aria-controls="collapseListComments">

        <h2 class="comments-title panel-title">
            <?php
                $comments_number = get_comments_number();
                if ( '1' === $comments_number ) {
                    /* translators: %s: post title */
                    printf( _x( 'One Reply to %s', 'comments title', 'wp-less-is-more' ), '&ldquo;' . get_the_title() . '&rdquo;' );
                } else {
                    printf(
                        /* translators: %s 1: number of comments, %s 2: post title */
                        _nx(
                            '%s Reply to %s',
                            '%s Replies to %s',
                            $comments_number,
                            'comments title',
                            'wp-less-is-more'
                        ),
                        '<span class="badge">' . number_format_i18n( get_comments_number() ) . '</span>',
                        '&ldquo;' . get_the_title() . '&ldquo;'
                    );
                }
            ?>&nbsp;<span class="glyphicon glyphicon-chevron-up pull-right" aria-hidden="true"></span><span class="glyphicon glyphicon-chevron-down pull-right" aria-hidden="true"></span>&nbsp;
        </h2>
    </div>
<div id="collapseListComments" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="collapseListComments" aria-expanded="true">
    <div id="comments-list" class="panel-body ">
        <ul class="comment-list media-list list-group list-unstyled">
            <?php
                wp_list_comments( array(
                    'avatar_size' => 40,
                    'style'       => 'ul',
                    'short_ping'  => true,
                    'reply_text'  => __( 'Reply', 'wp-less-is-more' ),
                    'callback'      => 'wp_less_is_more__custom_comments_list_template',
                ) );
            ?>
        </ul>

<?php // Are there comments to navigate through?
       if ( get_comment_pages_count() > 1 && get_option( 'page_comments' ) ) {
?>
        <nav aria-label="...">
        <ul class="pager">
            <li><?php previous_comments_link( __( 'Older Comments', 'wp-less-is-more'  ) ); ?></li>
            <li><?php next_comments_link( __( 'Newer Comments', 'wp-less-is-more'  ) ); ?></li>
        </ul>
        </nav><!-- .comment-navigation -->

       <?php } // Check for comment navigation?>
    </div>
</div><!-- .collapse comments list -->
<?php
    endif; // Check for have_comments().

    comment_form( $comments_args );

// You have to close panel block anyway by checking of comments status
    if  ( have_comments() ):

echo '</div>
<!-- End panel panel-info if comments are closed but have some -->';
endif;