<?php 
/** 
 * Server-side rendering of the `core/post-author` block. 
 * 
 * @package WordPress 
 */ 
 
/** 
 * Renders the `core/post-author` block on the server. 
 * 
 * @since 5.9.0 
 * 
 * @param  array    $attributes Block attributes. 
 * @param  string   $content    Block default content. 
 * @param  WP_Block $block      Block instance. 
 * @return string Returns the rendered author block. 
 */ 
function render_block_core_post_author( $attributes, $content, $block ) { 
    if ( ! isset( $block->context['postId'] ) ) { 
        $author_id = get_query_var( 'author' ); 
    } else { 
        $author_id = get_post_field( 'post_author', $block->context['postId'] ); 
    } 
 
    if ( empty( $author_id ) ) { 
        return ''; 
    } 
 
    $avatar = ! empty( $attributes['avatarSize'] ) ? get_avatar( 
        $author_id, 
        $attributes['avatarSize'] 
    ) : null; 
 
    $link        = get_author_posts_url( $author_id ); 
    $author_name = get_the_author_meta( 'display_name', $author_id ); 
    if ( ! empty( $attributes['isLink'] && ! empty( $attributes['linkTarget'] ) ) ) { 
        $author_name = sprintf( '<a href="%1$s" target="%2$s">%3$s</a>', esc_url( $link ), esc_attr( $attributes['linkTarget'] ), $author_name ); 
    } 
 
    $byline  = ! empty( $attributes['byline'] ) ? $attributes['byline'] : false; 
    $classes = array(); 
    if ( isset( $attributes['itemsJustification'] ) ) { 
        $classes[] = 'items-justified-' . $attributes['itemsJustification']; 
    } 
    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>', $wrapper_attributes ) . 
    ( ! empty( $attributes['showAvatar'] ) ? '<div class="wp-block-post-author__avatar">' . $avatar . '</div>' : '' ) . 
    '<div class="wp-block-post-author__content">' . 
    ( ! empty( $byline ) ? '<p class="wp-block-post-author__byline">' . wp_kses_post( $byline ) . '</p>' : '' ) . 
    '<p class="wp-block-post-author__name">' . $author_name . '</p>' . 
    ( ! empty( $attributes['showBio'] ) ? '<p class="wp-block-post-author__bio">' . get_the_author_meta( 'user_description', $author_id ) . '</p>' : '' ) . 
    '</div>' . 
    '</div>'; 
} 
 
/** 
 * Registers the `core/post-author` block on the server. 
 * 
 * @since 5.9.0 
 */ 
function register_block_core_post_author() { 
    register_block_type_from_metadata( 
        __DIR__ . '/post-author', 
        array( 
            'render_callback' => 'render_block_core_post_author', 
        ) 
    ); 
} 
add_action( 'init', 'register_block_core_post_author' ); 
 
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