export const pgProtocols = ["postgres:", "postgresql:"];

export function isPgUrl(url: string): boolean {
  try {
    const urlObj = new URL(url);
    return pgProtocols.includes(urlObj.protocol);
  } catch {
    return false;
  }
}

export function parsePgUrl(url: string): { connectionString: string; readonly: boolean } {
  if (!isPgUrl(url)) throw new Error("Not a postgres: URL");
  const urlObj = new URL(url);
  const readonly = (urlObj.searchParams.get("readonly") ?? "0") !== "0";
  urlObj.searchParams.delete("readonly");
  return { connectionString: urlObj.toString(), readonly };
}