From f20c8478ee51f530f403adbcb78c52dca0865272 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ella=20van=C2=A0Durpe?= <ella@vandurpe.com>
Date: Thu, 22 Jun 2023 19:34:06 +0300
Subject: [PATCH] Register meta

---
 lib/client-assets.php                     | 22 +++++++
 packages/core-data/src/entity-provider.js | 76 +++++++++++------------
 2 files changed, 60 insertions(+), 38 deletions(-)

diff --git a/lib/client-assets.php b/lib/client-assets.php
index 9757e4b7ff24a..57a762455558d 100644
--- a/lib/client-assets.php
+++ b/lib/client-assets.php
@@ -569,3 +569,25 @@ function gutenberg_register_vendor_scripts( $scripts ) {
 // Enqueue stored styles.
 add_action( 'wp_enqueue_scripts', 'gutenberg_enqueue_stored_styles' );
 add_action( 'wp_footer', 'gutenberg_enqueue_stored_styles', 1 );
+
+/**
+ * Registers the `core/footnotes` block on the server.
+ */
+function register_block_core_footnotes() {
+	register_post_meta(
+		'post',
+		'footnotes',
+		array(
+			'show_in_rest' => true,
+			'single'       => true,
+			'type'         => 'string',
+		)
+	);
+	register_block_type_from_metadata(
+		__DIR__ . '/footnotes',
+		array(
+			'render_callback' => 'render_block_core_footnotes',
+		)
+	);
+}
+add_action( 'init', 'register_block_core_footnotes' );
diff --git a/packages/core-data/src/entity-provider.js b/packages/core-data/src/entity-provider.js
index 04bb4c21433e3..96402a5dae57a 100644
--- a/packages/core-data/src/entity-provider.js
+++ b/packages/core-data/src/entity-provider.js
@@ -21,7 +21,7 @@ import { unlock } from './private-apis';
 
 const EMPTY_ARRAY = [];
 
-let oldFootnotes = {};
+const oldFootnotes = {};
 
 /**
  * Internal dependencies
@@ -198,49 +198,49 @@ export function useEntityBlockEditor( kind, name, { id: _id } = {} ) {
 
 			const { getRichTextValues } = unlock( blockEditorPrivateApis );
 			const _content = getRichTextValues( _blocks ).join( '' ) || '';
-			const newOrder = [];
+			// const newOrder = [];
 
-			// This can be avoided when
-			// https://github.com/WordPress/gutenberg/pull/43204 lands. We can then
-			// get the order directly from the rich text values.
-			if ( _content.indexOf( 'data-fn' ) !== -1 ) {
-				const regex = /data-fn="([^"]+)"/g;
-				let match;
-				while ( ( match = regex.exec( _content ) ) !== null ) {
-					newOrder.push( match[ 1 ] );
-				}
-			}
+			// // This can be avoided when
+			// // https://github.com/WordPress/gutenberg/pull/43204 lands. We can then
+			// // get the order directly from the rich text values.
+			// if ( _content.indexOf( 'data-fn' ) !== -1 ) {
+			// 	const regex = /data-fn="([^"]+)"/g;
+			// 	let match;
+			// 	while ( ( match = regex.exec( _content ) ) !== null ) {
+			// 		newOrder.push( match[ 1 ] );
+			// 	}
+			// }
 
-			const footnotes = meta.footnotes
-				? JSON.parse( meta.footnotes )
-				: [];
-			const currentOrder = footnotes.map( ( fn ) => fn.id );
+			// const footnotes = meta.footnotes
+			// 	? JSON.parse( meta.footnotes )
+			// 	: [];
+			// const currentOrder = footnotes.map( ( fn ) => fn.id );
 
-			if ( currentOrder.join( '' ) === newOrder.join( '' ) ) return;
+			// if ( currentOrder.join( '' ) === newOrder.join( '' ) ) return;
 
-			const newFootnotes = newOrder.map(
-				( fnId ) =>
-					footnotes.find( ( fn ) => fn.id === fnId ) ||
-					oldFootnotes[ fnId ] || {
-						id: fnId,
-						content: '',
-					}
-			);
+			// const newFootnotes = newOrder.map(
+			// 	( fnId ) =>
+			// 		footnotes.find( ( fn ) => fn.id === fnId ) ||
+			// 		oldFootnotes[ fnId ] || {
+			// 			id: fnId,
+			// 			content: '',
+			// 		}
+			// );
 
-			oldFootnotes = {
-				...oldFootnotes,
-				...footnotes.reduce( ( acc, fn ) => {
-					if ( ! newOrder.includes( fn.id ) ) {
-						acc[ fn.id ] = fn;
-					}
-					return acc;
-				}, {} ),
-			};
+			// oldFootnotes = {
+			// 	...oldFootnotes,
+			// 	...footnotes.reduce( ( acc, fn ) => {
+			// 		if ( ! newOrder.includes( fn.id ) ) {
+			// 			acc[ fn.id ] = fn;
+			// 		}
+			// 		return acc;
+			// 	}, {} ),
+			// };
 
-			updateMeta( {
-				...meta,
-				footnotes: JSON.stringify( newFootnotes ),
-			} );
+			// updateMeta( {
+			// 	...meta,
+			// 	footnotes: JSON.stringify( newFootnotes ),
+			// } );
 		},
 		[ meta, updateMeta ]
 	);