type Jira = {

  username: string;

  password: string;

  domain: string;

};

/**

 * Get project issue type hierarchy

 * Get the issue type hierarchy for a next-gen project.

 */

export async function main(auth: Jira, projectId: string) {

  const url = new URL(

    `https://${auth.domain}.atlassian.net/rest/api/2/project/${projectId}/hierarchy`

  );

  const response = await fetch(url, {

    method: "GET",

    headers: {

      Authorization: "Basic " + btoa(`${auth.username}:${auth.password}`),

    },

    body: undefined,

  });

  if (!response.ok) {

    const text = await response.text();

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

  }

  return await response.json();

}