custom pagination function

// Custom Page Pagination
        function wp_custom_pagination($args = [], $class = 'pagination') {

            global $wp_query;
            $mid_size = 1; // default to 1 number each side

            // Check if we are on the first or last page
            $current_page = get_query_var('paged');
            if ( !$current_page || $current_page == $wp_query->max_num_pages ) {
                $mid_size = 1; // 1 numbers before/after the current page
            }

            $args = wp_parse_args( $args, [
                'mid_size'           => $mid_size,
                'prev_next'          => false,
                'prev_text'          => __('Older posts', 'textdomain'),
                'next_text'          => __('Newer posts', 'textdomain'),
                'screen_reader_text' => __('Posts navigation', 'textdomain'),
            ]);

            $links     = paginate_links($args);
            $next_link = get_next_posts_link($args['next_text']);
            $prev_link = get_previous_posts_link($args['prev_text']);
            $template  = apply_filters( 'navigation_markup_template', '
            <nav class="navigation %1$s" role="navigation">
                <div class="nav-links">%3$s<div class="page-numbers-container">%4$s</div>%5$s</div>
            </nav>', $args, $class);

            echo sprintf($template, $class, $args['screen_reader_text'], $prev_link, $links, $next_link);

        }
        add_filter('previous_posts_link_attributes', function()
        {
        return 'class="previous"';
        });

        add_filter('next_posts_link_attributes', function()
        {
        return 'class="next"';
        });