type Matrix = {

  baseUrl: string;

  token: string;

};

export async function main(

  matrix_res: Matrix,

  is_direct = false,

  name = "",

  room_alias_name = "",

  room_version = "",

  topic = "",

  visibility: "public" | "private" = "private",

) {

  if (!matrix_res.token) {

    throw Error("Creating a room requires an access token.");

  }

  const resp = await fetch(

    `${matrix_res.baseUrl}/_matrix/client/v3/rooms/${encodeURIComponent(

      room_id,

    )}/invite`,

    {

      method: "POST",

      headers: {

        Authorization: `Bearer ${matrix_res.token}`,

        "Content-Type": "application/json",

      },

      body: JSON.stringify({

        is_direct,

        ...(name && { name }),

        ...(room_alias_name && { room_alias_name }),

        ...(room_version && { room_version }),

        ...(topic && { topic }),

        visibility,

      }),

    },

  );

  if (!resp.ok) {

    throw Error(`Failed to create room: Error HTTP${resp.status}`);

  }

}