myCred: Display total points of current author

add_filter( 'streamtube/core/mycred/button_donate', function( $args ){
    $args['button_classes'][] = 'ms-sm-auto';
    return $args;
}, 10, 2 );

add_action( 'streamtube/core/mycred/button_donate/before', function( $args ){

    $author = 0;

    if( is_singular( 'video' ) ){
        global $post;

        $author = $post->post_author;
    }

    if( is_author() ){
        $author = get_queried_object_id();
    }

    $total_points = mycred_display_users_balance( $author );

    if( $total_points ){
        ?>
        <span class="total-points d-block mb-2 text-secondary">
            <?php
                printf(
                    esc_html__( '%s collected %s', 'streamtube-child' ),
                    '<strong class="text-secondary">'. get_userdata( $author )->display_name .'</strong>',
                    '<strong class="text-info">$'. number_format_i18n( $total_points ) .'</strong>'
                );
            ?>
        </span>
        <?php
    }

}, 10, 1 );

add_action( 'wp_footer', function(){
    ?>
    <style type="text/css">
        @media (max-width: 768px){

            body.author .button-donate-wrap{
                text-align: center;
            }
            body.author .button-donate-wrap .button-group button{
                margin: 0 auto!important;
            }
        }
    </style>
    <?php
} );