DOCX Document Resource

1import type {
2  ViewerContentBytes,
3  ViewerContentIdentity,
4} from "@/lib/viewer-resource";
5 
6const bufferCache = new Map<string, Promise<ArrayBuffer>>();
7 
8export function getDocxDocumentResource(
9  content: ViewerContentBytes,
10  options: { retainRejected?: boolean } = {},
11): Promise<ArrayBuffer> {
12  const loadKey = content.key;
13  const cached = bufferCache.get(loadKey);
14  if (cached) return cached;
15 
16  const promise = readDocxBytes(content).catch((error) => {
17    if (!options.retainRejected && bufferCache.get(loadKey) === promise) {
18      bufferCache.delete(loadKey);
19    }
20    throw error;
21  });
22  bufferCache.set(loadKey, promise);
23  return promise;
24}
25 
26export function clearDocxDocumentResource(content: ViewerContentIdentity) {
27  bufferCache.delete(content.key);
28}
29 
30export function resetDocxDocumentResourceCacheForTests() {
31  bufferCache.clear();
32}
33 
34function readDocxBytes(content: ViewerContentBytes): Promise<ArrayBuffer> {
35  return content.readBytes();
36}