import { get } from '@/utils/request';
import type { OssUploadTypeValue } from '@/utils/oss';

/** OSS 签名数据 */
export interface OssSignData {
  host: string;
  dir: string;
  policy: string;
  signature: string;
  x_oss_credential: string;
  x_oss_date: string;
  security_token: string;
}

/**
 * 获取 OSS 上传签名
 * @param type 上传类型（参见 OssUploadType）
 */
export async function fetchOssSign(type: OssUploadTypeValue): Promise<OssSignData> {
  // 后端签名接口地址（待对接时调整）
  const res: any = await get('/sys/oss/getUploadSign', { type });
  const data = res?.data as OssSignData;
  if (!data?.host) {
    throw new Error(res?.msg || '获取上传凭证失败');
  }
  return data;
}