<?php

/**

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

 *

 * @package WordPress

 */

/**

 * Renders the `core/media-text` block on server.

 *

 * @since 6.6.0

 *

 * @param array  $attributes The block attributes.

 * @param string $content    The block rendered content.

 *

 * @return string Returns the Media & Text block markup, if useFeaturedImage is true.

 */

function render_block_core_media_text( $attributes, $content ) {

	if ( false === $attributes['useFeaturedImage'] ) {

		return $content;

	}

	if ( in_the_loop() ) {

		update_post_thumbnail_cache();

	}

	$current_featured_image = get_the_post_thumbnail_url();

	if ( ! $current_featured_image ) {

		return $content;

	}

	$has_media_on_right = isset( $attributes['mediaPosition'] ) && 'right' === $attributes['mediaPosition'];

	$image_fill         = isset( $attributes['imageFill'] ) && $attributes['imageFill'];

	$focal_point        = isset( $attributes['focalPoint'] ) ? round( $attributes['focalPoint']['x'] * 100 ) . '% ' . round( $attributes['focalPoint']['y'] * 100 ) . '%' : '50% 50%';

	$unique_id          = 'wp-block-media-text__media-' . wp_unique_id();

	$block_tag_processor = new WP_HTML_Tag_Processor( $content );

	$block_query         = array(

		'tag_name'   => 'div',

		'class_name' => 'wp-block-media-text',

	);

	while ( $block_tag_processor->next_tag( $block_query ) ) {

		if ( $image_fill ) {

			// The markup below does not work with the deprecated `is-image-fill` class.

			$block_tag_processor->remove_class( 'is-image-fill' );

			$block_tag_processor->add_class( 'is-image-fill-element' );

		}

	}

	$content = $block_tag_processor->get_updated_html();

	$media_tag_processor   = new WP_HTML_Tag_Processor( $content );

	$wrapping_figure_query = array(

		'tag_name'   => 'figure',

		'class_name' => 'wp-block-media-text__media',

	);

	if ( $has_media_on_right ) {

		// Loop through all the figure tags and set a bookmark on the last figure tag.

		while ( $media_tag_processor->next_tag( $wrapping_figure_query ) ) {

			$media_tag_processor->set_bookmark( 'last_figure' );

		}

		if ( $media_tag_processor->has_bookmark( 'last_figure' ) ) {

			$media_tag_processor->seek( 'last_figure' );

			// Insert a unique ID to identify the figure tag.

			$media_tag_processor->set_attribute( 'id', $unique_id );

		}

	} else {

		if ( $media_tag_processor->next_tag( $wrapping_figure_query ) ) {

			// Insert a unique ID to identify the figure tag.

			$media_tag_processor->set_attribute( 'id', $unique_id );

		}

	}

	$content = $media_tag_processor->get_updated_html();

	// Add the image tag inside the figure tag, and update the image attributes

	// in order to display the featured image.

	$media_size_slug = isset( $attributes['mediaSizeSlug'] ) ? $attributes['mediaSizeSlug'] : 'full';

	$image_tag       = '<img class="wp-block-media-text__featured_image">';

	$content         = preg_replace(

		'/(<figure\s+id="' . preg_quote( $unique_id, '/' ) . '"\s+class="wp-block-media-text__media"\s*>)/',

		'$1' . $image_tag,

		$content

	);

	$image_tag_processor = new WP_HTML_Tag_Processor( $content );

	if ( $image_tag_processor->next_tag(

		array(

			'tag_name' => 'figure',

			'id'       => $unique_id,

		)

	) ) {

		// The ID is only used to ensure that the correct figure tag is selected,

		// and can now be removed.

		$image_tag_processor->remove_attribute( 'id' );

		if ( $image_tag_processor->next_tag(

			array(

				'tag_name'   => 'img',

				'class_name' => 'wp-block-media-text__featured_image',

			)

		) ) {

			$image_tag_processor->set_attribute( 'src', esc_url( $current_featured_image ) );

			$image_tag_processor->set_attribute( 'class', 'wp-image-' . get_post_thumbnail_id() . ' size-' . $media_size_slug );

			$image_tag_processor->set_attribute( 'alt', trim( strip_tags( get_post_meta( get_post_thumbnail_id(), '_wp_attachment_image_alt', true ) ) ) );

			if ( $image_fill ) {

				$image_tag_processor->set_attribute( 'style', 'object-position:' . $focal_point . ';' );

			}

			$content = $image_tag_processor->get_updated_html();

		}

	}

	return $content;

}

/**

 * Registers the `core/media-text` block renderer on server.

 *

 * @since 6.6.0

 */

function register_block_core_media_text() {

	register_block_type_from_metadata(

		__DIR__ . '/media-text',

		array(

			'render_callback' => 'render_block_core_media_text',

		)

	);

}

add_action( 'init', 'register_block_core_media_text' );