import { randomUUID } from 'crypto';

/** 门店资源上传目录（OSS object key 前缀） */
const STORE_UPLOAD_DIRS: Record<string, string> = {
  STORE_TITLE: 'store/title',
  STORE_ENV: 'store/env',
  STORE_CONTRACT: 'store/contract',
};

export function resolveOssUploadDir(uploadPrefix: string, bizType: string): string {
  const storeDir = STORE_UPLOAD_DIRS[bizType];
  if (storeDir) return `${storeDir}/`;
  return `${uploadPrefix.replace(/\/$/, '')}/${bizType.toLowerCase()}/`;
}

export function buildOssObjectKey(uploadPrefix: string, bizType: string, fileName: string): string {
  const ext = fileName.includes('.') ? fileName.split('.').pop() : 'bin';
  const dir = resolveOssUploadDir(uploadPrefix, bizType);
  return `${dir}${Date.now()}-${randomUUID().slice(0, 8)}.${ext}`;
}