<?php 
/** 
 * Server-side rendering of the `core/query-title` block. 
 * 
 * @package WordPress 
 */ 
 
/** 
 * Renders the `core/query-title` block on the server. 
 * For now it only supports Archive title, 
 * using queried object information 
 * 
 * @since 5.8.0 
 * 
 * @param array $attributes Block attributes. 
 * 
 * @return string Returns the query title based on the queried object. 
 */ 
function render_block_core_query_title( $attributes ) { 
    $type       = isset( $attributes['type'] ) ? $attributes['type'] : null; 
    $is_archive = is_archive(); 
    $is_search  = is_search(); 
    if ( ! $type || 
        ( 'archive' === $type && ! $is_archive ) || 
        ( 'search' === $type && ! $is_search ) 
        ) { 
        return ''; 
    } 
    $title = ''; 
    if ( $is_archive ) { 
        $show_prefix = isset( $attributes['showPrefix'] ) ? $attributes['showPrefix'] : true; 
        if ( ! $show_prefix ) { 
            add_filter( 'get_the_archive_title_prefix', '__return_empty_string', 1 ); 
            $title = get_the_archive_title(); 
            remove_filter( 'get_the_archive_title_prefix', '__return_empty_string', 1 ); 
        } else { 
            $title = get_the_archive_title(); 
        } 
    } 
    if ( $is_search ) { 
        $title = __( 'Search results' ); 
 
        if ( isset( $attributes['showSearchTerm'] ) && $attributes['showSearchTerm'] ) { 
            $title = sprintf( 
                /* translators: %s is the search term. */ 
                __( 'Search results for: "%s"' ), 
                get_search_query() 
            ); 
        } 
    } 
 
    $tag_name           = isset( $attributes['level'] ) ? 'h' . (int) $attributes['level'] : 'h1'; 
    $align_class_name   = empty( $attributes['textAlign'] ) ? '' : "has-text-align-{$attributes['textAlign']}"; 
    $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $align_class_name ) ); 
    return sprintf( 
        '<%1$s %2$s>%3$s</%1$s>', 
        $tag_name, 
        $wrapper_attributes, 
        $title 
    ); 
} 
 
/** 
 * Registers the `core/query-title` block on the server. 
 * 
 * @since 5.8.0 
 */ 
function register_block_core_query_title() { 
    register_block_type_from_metadata( 
        __DIR__ . '/query-title', 
        array( 
            'render_callback' => 'render_block_core_query_title', 
        ) 
    ); 
} 
add_action( 'init', 'register_block_core_query_title' ); 
 
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