/**
 * Document center API — wraps /api/oa/folders and /documents.
 * File content storage is out of scope; only metadata is tracked.
 */
import { http } from './http'

export interface DocFolder {
  id: number
  name: string
  parentId: number | null
  children: DocFolder[]
}

export interface DocFile {
  id: number
  folderId: number | null
  name: string
  ext: string
  size: number
  version: number
  uploader: string
  status: string
  /** 关联的真实文件 (StoredFile.id)，有值时可在线预览/下载。 */
  storedFileId?: number | null
  updatedAt: string
}

/** GET /folders/tree */
export function getFolderTree(): Promise<DocFolder[]> {
  return http.get<DocFolder[]>('/folders/tree')
}

/** GET /documents[?folderId=] */
export function listDocuments(folderId?: number | string): Promise<DocFile[]> {
  return http.get<DocFile[]>('/documents', folderId != null ? { folderId } : undefined)
}

/** POST /documents/upload-meta — register file metadata. */
export function uploadMeta(input: {
  folderId: number | null
  name: string
  ext: string
  size: number
  uploader?: string
  /** 关联已上传的真实文件 (StoredFile.id)。 */
  storedFileId?: number | null
}): Promise<DocFile> {
  return http.post<DocFile>('/documents/upload-meta', input)
}