Add recommendPage helper function

packages/api/src/elastic/groups.ts

@@ -0,0 +1,37 @@
+import { Group, Page, PageContext } from './types'
+import { createPage, updatePage } from './pages'
+
+export const recommendPage = async (
+  ctx: PageContext,
+  page: Page,
+  userId: string,
+  group: Group,
+  existingPage?: Page
+): Promise<string | undefined> => {
+  try {
+    if (existingPage) {
+      // update recommendedBy in the existing page
+      const recommendedBy = (existingPage.recommendedBy || []).concat(group)
+
+      await updatePage(
+        existingPage.id,
+        {
+          recommendedBy,
+        },
+        ctx
+      )
+      return existingPage.id
+    }
+
+    // create a new page
+    const newPage = {
+      ...page,
+      recommendedBy: [group],
+      userId,
+    }
+
+    return createPage(newPage, ctx)
+  } catch (err) {
+    console.error(err)
+  }
+}