<?php

/**

 * Server-side rendering of the `core/read-more` block.

 *

 * @package WordPress

 */

/**

 * Renders the `core/read-more` 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  Returns the post link.

 */

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

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

		return '';

	}

	$post_ID    = $block->context['postId'];

	$post_title = get_the_title( $post_ID );

	if ( '' === $post_title ) {

		$post_title = sprintf(

			/* translators: %s is post ID to describe the link for screen readers. */

			__( 'untitled post %s' ),

			$post_ID

		);

	}

	$screen_reader_text = sprintf(

		/* translators: %s is either the post title or post ID to describe the link for screen readers. */

		__( ': %s' ),

		$post_title

	);

	$justify_class_name = empty( $attributes['justifyContent'] ) ? '' : "is-justified-{$attributes['justifyContent']}";

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

	$more_text          = ! empty( $attributes['content'] ) ? wp_kses_post( $attributes['content'] ) : __( 'Read more' );

	return sprintf(

		'<a %1s href="%2s" target="%3s">%4s<span class="screen-reader-text">%5s</span></a>',

		$wrapper_attributes,

		get_the_permalink( $post_ID ),

		esc_attr( $attributes['linkTarget'] ),

		$more_text,

		$screen_reader_text

	);

}

/**

 * Registers the `core/read-more` block on the server.

 *

 * @since 6.0.0

 */

function register_block_core_read_more() {

	register_block_type_from_metadata(

		__DIR__ . '/read-more',

		array(

			'render_callback' => 'render_block_core_read_more',

		)

	);

}

add_action( 'init', 'register_block_core_read_more' );