1<?php
  2/**
  3 * Server-side rendering of the `core/comments-pagination-numbers` block.
  4 *
  5 * @package WordPress
  6 */
  7
  8/**
  9 * Renders the `core/comments-pagination-numbers` block on the server.
 10 *
 11 * @since 6.0.0
 12 *
 13 * @param array    $attributes Block attributes.
 14 * @param string   $content    Block default content.
 15 * @param WP_Block $block      Block instance.
 16 *
 17 * @return string Returns the pagination numbers for the comments.
 18 */
 19function render_block_core_comments_pagination_numbers( $attributes, $content, $block ) {
 20	// Bail out early if the post ID is not set for some reason.
 21	if ( empty( $block->context['postId'] ) ) {
 22		return '';
 23	}
 24
 25	$comment_vars = build_comment_query_vars_from_block( $block );
 26
 27	$total   = ( new WP_Comment_Query( $comment_vars ) )->max_num_pages;
 28	$current = ! empty( $comment_vars['paged'] ) ? $comment_vars['paged'] : null;
 29
 30	// Render links.
 31	$content = paginate_comments_links(
 32		array(
 33			'total'     => $total,
 34			'current'   => $current,
 35			'prev_next' => false,
 36			'echo'      => false,
 37		)
 38	);
 39
 40	if ( empty( $content ) ) {
 41		return '';
 42	}
 43
 44	$wrapper_attributes = get_block_wrapper_attributes();
 45
 46	return sprintf(
 47		'<div %1$s>%2$s</div>',
 48		$wrapper_attributes,
 49		$content
 50	);
 51}
 52
 53/**
 54 * Registers the `core/comments-pagination-numbers` block on the server.
 55 *
 56 * @since 6.0.0
 57 */
 58function register_block_core_comments_pagination_numbers() {
 59	register_block_type_from_metadata(
 60		__DIR__ . '/comments-pagination-numbers',
 61		array(
 62			'render_callback' => 'render_block_core_comments_pagination_numbers',
 63		)
 64	);
 65}
 66add_action( 'init', 'register_block_core_comments_pagination_numbers' );
 67