Add automatic Threads link replies and sunrise preview card

server/threads/publisher.ts

@@ -60,6 +60,16 @@ export async function publishCarousel(token: string, imageUrls: string[], text:
   return publishContainer(token, container.id, beforePublish, request, wait);
 }
 
+export async function publishReply(token: string, postId: string, text: string, linkUrl: string,
+  beforePublish: (id: string) => Promise<void>, request: typeof fetch = fetch,
+  wait: (ms: number) => Promise<unknown> = delay) {
+  const container = await threadsRequest(token, '/me/threads', {
+    media_type: 'TEXT', text, reply_to_id: postId, link_attachment: linkUrl,
+  }, 'POST', request);
+  if (!container.id) throw new Error('Threads returned no reply container ID');
+  return publishContainer(token, container.id, beforePublish, request, wait);
+}
+
 async function publishContainer(token: string, id: string, beforePublish: (id: string) => Promise<void>,
   request: typeof fetch, wait: (ms: number) => Promise<unknown>) {
   await waitForMedia(token, id, request, wait);