import { getFileMeta } from '../../utils/file';

export default defineEventHandler(async (event) => {
  const id = getRouterParam(event, 'id');
  if (!id) {
    throw createError({ statusCode: 400, message: '缺少文件ID' });
  }
  const file = await getFileMeta(id);
  if (!file) {
    throw createError({ statusCode: 404, message: '文件不存在' });
  }

  const res = await $fetch<ArrayBuffer>(file.url, {
    responseType: 'arrayBuffer',
  });
  return new Response(res, {
    headers: {
      'Content-Disposition': `attachment; filename="${encodeURIComponent(file.filename_download)}"`,
      'Content-Type': file.type,
    },
  });
});