Function groupUploadableFiles

apps/sim/providers/file-attachments.server.ts:161–173

* Groups large files needing a Files API upload by storage key so a file referenced across * multiple messages uploads once; the resulting handle is then applied to every occurrence.

(messages: Message[] | undefined)

 * multiple messages uploads once; the resulting handle is then applied to every occurrence.
 */
function groupUploadableFiles(messages: Message[] | undefined): UserFile[][] {
  const groups = new Map<string, UserFile[]>()
  for (const message of messages ?? []) {
    for (const file of message.files ?? []) {
      if (!file.remoteUrl || file.providerFileId || file.providerFileUri) continue
      const dedupeKey = file.key || file.remoteUrl
      const group = groups.get(dedupeKey)
      if (group) group.push(file)
      else groups.set(dedupeKey, [file])
    }
  }
  return [...groups.values()]
}

/**
 * Reads the file bytes straight from storage via the storage SDK (not by HTTP-fetching the