// The shared shape all domain errors conform to.

// The type guard solves the `unknown` catch problem everywhere.

export class DomainError extends Error {

  constructor(public readonly message: string, public readonly status: number) {

    super(message);

    this.name = this.constructor.name; // makes logs say "DuplicateEmailError" not "Error"

    Object.setPrototypeOf(this, new.target.prototype); // fixes instanceof after transpile

  }

}

export function isDomainError(err: unknown): err is DomainError {

  return err instanceof DomainError;

}