//native

type Assemblyai = {

  apiKey: string;

};

/**

 * Get subtitles for transcript

 * Export your transcript in SRT or VTT format to use with a video player for subtitles and closed captions.

 */

export async function main(

  auth: Assemblyai,

  transcript_id: string,

  subtitle_format: "srt" | "vtt",

  chars_per_caption: string | undefined,

) {

  const url = new URL(

    `https://api.assemblyai.com/v2/transcript/${transcript_id}/${subtitle_format}`,

  );

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

    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();

}