//native

type Clickhouse = {

  username: string;

  password: string;

  host: string;

};

/**

 * Get prometheus metrics

 * Returns prometheus metrics for a service.

 */

export async function main(

  auth: Clickhouse,

  organizationId: string,

  serviceId: string,

  filtered_metrics: string | undefined

) {

  const url = new URL(

    `https://api.clickhouse.cloud/v1/organizations/${organizationId}/services/${serviceId}/prometheus`

  );

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

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

      url.searchParams.append(k, v);

    }

  }

  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.text();

}