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<?php/**
 * Server-side rendering of the `core/comment-reply-link` block.
 *
 * @package WordPress
 */
 
 /**
 * Renders the `core/comment-reply-link` block on the server.
 *
 * @since 6.0.0
 *
 * @param array    $attributes Block attributes.
 * @param string   $content    Block default content.
 * @param WP_Block $block      Block instance.
 * @return string Return the post comment's reply link.
 */
 function render_block_core_comment_reply_link( $attributes, $content, $block ) {
 if ( ! isset( $block->context['commentId'] ) ) {
 return '';
 }
 
 $thread_comments = get_option( 'thread_comments' );
 if ( ! $thread_comments ) {
 return '';
 }
 
 $comment = get_comment( $block->context['commentId'] );
 if ( empty( $comment ) ) {
 return '';
 }
 
 $depth     = 1;
 $max_depth = get_option( 'thread_comments_depth' );
 $parent_id = $comment->comment_parent;
 
 // Compute comment's depth iterating over its ancestors.
 while ( ! empty( $parent_id ) ) {
 ++$depth;
 $parent_id = get_comment( $parent_id )->comment_parent;
 }
 
 $comment_reply_link = get_comment_reply_link(
 array(
 'depth'     => $depth,
 'max_depth' => $max_depth,
 ),
 $comment
 );
 
 // Render nothing if the generated reply link is empty.
 if ( empty( $comment_reply_link ) ) {
 return;
 }
 
 $classes = array();
 if ( isset( $attributes['textAlign'] ) ) {
 $classes[] = 'has-text-align-' . $attributes['textAlign'];
 }
 if ( isset( $attributes['style']['elements']['link']['color']['text'] ) ) {
 $classes[] = 'has-link-color';
 }
 
 $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classes ) ) );
 
 return sprintf(
 '<div %1$s>%2$s</div>',
 $wrapper_attributes,
 $comment_reply_link
 );
 }
 
 /**
 * Registers the `core/comment-reply-link` block on the server.
 *
 * @since 6.0.0
 */
 function register_block_core_comment_reply_link() {
 register_block_type_from_metadata(
 __DIR__ . '/comment-reply-link',
 array(
 'render_callback' => 'render_block_core_comment_reply_link',
 )
 );
 }
 
 add_action( 'init', 'register_block_core_comment_reply_link' );
 
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