import type { ErrorCode } from "@deadhead/schema";

/**
 * A refused command (CR-014): the same codes and messages the server sent, so
 * the client and the ported tests read them as before.
 */
export class CommandError extends Error {
  constructor(
    readonly code: ErrorCode,
    message: string,
  ) {
    super(message);
    this.name = "CommandError";
  }
}

export const fail = (code: ErrorCode, message: string) => new CommandError(code, message);

/** Codes the server answered with 404 rather than 409 (for HTTP-shaped tests and the client). */
export const NOT_FOUND_CODES: ReadonlySet<ErrorCode> = new Set([
  "not-found",
  "unknown-contract",
  "unknown-skill",
  "unknown-goal",
]);