//native

type Grist = {

  apiKey: string;

  host: string;

};

/**

 * Content of document, as an Excel file

 *

 */

export async function main(

  auth: Grist,

  docId: string,

  header: "colId" | "label" | undefined,

) {

  const url = new URL(`https://${auth.host}/api/docs/${docId}/download/xlsx`);

  for (const [k, v] of [["header", header]]) {

    if (v !== undefined && v !== "" && k !== undefined) {

      url.searchParams.append(k, v);

    }

  }

  const response = await fetch(url, {

    method: "GET",

    headers: {

      Authorization: "Bearer " + auth.apiKey,

    },

    body: undefined,

  });

  if (!response.ok) {

    const text = await response.text();

    throw new Error(`${response.status} ${text}`);

  }

  return await response.text();

}