<?php

/**

 * Server-side rendering of the `core/post-author-biography` block.

 *

 * @package WordPress

 */

/**

 * Renders the `core/post-author-biography` block on the server.

 *

 * @param  array    $attributes Block attributes.

 * @param  string   $content    Block default content.

 * @param  WP_Block $block      Block instance.

 * @return string Returns the rendered post author biography block.

 */

function render_block_core_post_author_biography( $attributes, $content, $block ) {

	if ( ! isset( $block->context['postId'] ) ) {

		return '';

	}

	$author_id = get_post_field( 'post_author', $block->context['postId'] );

	if ( empty( $author_id ) ) {

		return '';

	}

	$author_biography = get_the_author_meta( 'description', $author_id );

	if ( empty( $author_biography ) ) {

		return '';

	}

	$align_class_name   = empty( $attributes['textAlign'] ) ? '' : "has-text-align-{$attributes['textAlign']}";

	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $align_class_name ) );

	return sprintf( '<div %1$s>', $wrapper_attributes ) . $author_biography . '</div>';

}

/**

 * Registers the `core/post-author-biography` block on the server.

 */

function register_block_core_post_author_biography() {

	register_block_type_from_metadata(

		__DIR__ . '/post-author-biography',

		array(

			'render_callback' => 'render_block_core_post_author_biography',

		)

	);

}

add_action( 'init', 'register_block_core_post_author_biography' );