<?php

/**

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

 *

 * @package WordPress

 */

/**

 * When the `core/file` block is rendering, check if we need to enqueue the `'wp-block-file-view` script.

 *

 * @param array $attributes The block attributes.

 * @param array $content    The block content.

 *

 * @return string Returns the block content.

 */

function render_block_core_file( $attributes, $content ) {

	$should_load_view_script = ! empty( $attributes['displayPreview'] ) && ! wp_script_is( 'wp-block-file-view' );

	if ( $should_load_view_script ) {

		wp_enqueue_script( 'wp-block-file-view' );

	}

	return $content;

}

/**

 * Registers the `core/file` block on server.

 */

function register_block_core_file() {

	register_block_type_from_metadata(

		__DIR__ . '/file',

		array(

			'render_callback' => 'render_block_core_file',

		)

	);

}

add_action( 'init', 'register_block_core_file' );