List page meta links in the context of a space or change request

packages/gitbook/src/components/SitePage/SitePage.tsx

@@ -317,13 +317,34 @@ async function resolvePageMetaLinks(
     context: GitBookSiteContext,
     pageId: string
 ): Promise<PageMetaLinks> {
-    const pageMetaLinks = await getDataOrNull(
-        context.dataFetcher.listRevisionPageMetaLinks({
-            spaceId: context.space.id,
-            revisionId: context.revisionId,
-            pageId,
-        })
-    );
+    const pageMetaLinks = await (async () => {
+        if (context.changeRequest) {
+            return getDataOrNull(
+                context.dataFetcher.listChangeRequestPageMetaLinks({
+                    spaceId: context.space.id,
+                    changeRequestId: context.changeRequest.id,
+                    pageId,
+                })
+            );
+        }
+
+        if (context.revisionId !== context.space.revision) {
+            return getDataOrNull(
+                context.dataFetcher.listRevisionPageMetaLinks({
+                    spaceId: context.space.id,
+                    revisionId: context.revisionId,
+                    pageId,
+                })
+            );
+        }
+
+        return getDataOrNull(
+            context.dataFetcher.listSpacePageMetaLinks({
+                spaceId: context.space.id,
+                pageId,
+            })
+        );
+    })();
 
     if (pageMetaLinks) {
         const canonicalResolution = pageMetaLinks.canonical

packages/gitbook/src/lib/data/api.ts

@@ -159,6 +159,21 @@ export function createDataFetcher(
                 pageId: params.pageId,
             });
         },
+
+        listSpacePageMetaLinks(params) {
+            return listSpacePageMetaLinks(input, {
+                spaceId: params.spaceId,
+                pageId: params.pageId,
+            });
+        },
+
+        listChangeRequestPageMetaLinks(params) {
+            return listChangeRequestPageMetaLinks(input, {
+                spaceId: params.spaceId,
+                changeRequestId: params.changeRequestId,
+                pageId: params.pageId,
+            });
+        },
     };
 }
 
@@ -744,6 +759,64 @@ const listRevisionPageMetaLinks = cache(
     }
 );
 
+/**
+ * List all the meta links for a given page in a space.
+ */
+const listSpacePageMetaLinks = cache(
+    async (input: DataFetcherInput, params: { spaceId: string; pageId: string }) => {
+        'use cache';
+        return wrapCacheDataFetcherError(async () => {
+            return trace(
+                `listSpacePageMetaLinks(${params.spaceId}, ${params.pageId})`,
+                async () => {
+                    const api = apiClient(input);
+                    const res = await api.spaces.listSpacePageMetaLinks(
+                        params.spaceId,
+                        params.pageId,
+                        {
+                            ...noCacheFetchOptions,
+                        }
+                    );
+                    cacheTag(...getCacheTagsFromResponse(res));
+                    cacheLife('days');
+                    return res.data;
+                }
+            );
+        });
+    }
+);
+
+/**
+ * List all the meta links for a given page in a change request.
+ */
+const listChangeRequestPageMetaLinks = cache(
+    async (
+        input: DataFetcherInput,
+        params: { spaceId: string; changeRequestId: string; pageId: string }
+    ) => {
+        'use cache';
+        return wrapCacheDataFetcherError(async () => {
+            return trace(
+                `listChangeRequestPageMetaLinks(${params.spaceId}, ${params.changeRequestId}, ${params.pageId})`,
+                async () => {
+                    const api = apiClient(input);
+                    const res = await api.spaces.listChangeRequestPageMetaLinks(
+                        params.spaceId,
+                        params.changeRequestId,
+                        params.pageId,
+                        {
+                            ...noCacheFetchOptions,
+                        }
+                    );
+                    cacheTag(...getCacheTagsFromResponse(res));
+                    cacheLife('days');
+                    return res.data;
+                }
+            );
+        });
+    }
+);
+
 /**
  * Create a new API client.
  */

packages/gitbook/src/lib/data/types.ts

@@ -182,4 +182,21 @@ export interface GitBookDataFetcher {
         revisionId: string;
         pageId: string;
     }): Promise<DataFetcherResponse<api.RevisionPageMetaLinks>>;
+
+    /**
+     * List change request meta links.
+     */
+    listChangeRequestPageMetaLinks(params: {
+        spaceId: string;
+        changeRequestId: string;
+        pageId: string;
+    }): Promise<DataFetcherResponse<api.RevisionPageMetaLinks>>;
+
+    /**
+     * List space meta links.
+     */
+    listSpacePageMetaLinks(params: {
+        spaceId: string;
+        pageId: string;
+    }): Promise<DataFetcherResponse<api.RevisionPageMetaLinks>>;
 }