import { invert } from '../internals/invert';

// reference: https://www.jsonrpc.org/specification

/**
 * JSON-RPC 2.0 Error codes
 *
 * `-32000` to `-32099` are reserved for implementation-defined server-errors.
 * For tRPC we're copying the last digits of HTTP 4XX errors.
 */
export const TRPC_ERROR_CODES_BY_KEY = {
  /**
   * Invalid JSON was received by the server.
   * An error occurred on the server while parsing the JSON text.
   */
  PARSE_ERROR: -32700,
  /**
   * The JSON sent is not a valid Request object.
   */
  BAD_REQUEST: -32600, // 400

  // Internal JSON-RPC error
  INTERNAL_SERVER_ERROR: -32603,
  NOT_IMPLEMENTED: -32603,

  // Implementation specific errors
  UNAUTHORIZED: -32001, // 401
  FORBIDDEN: -32003, // 403
  NOT_FOUND: -32004, // 404
  METHOD_NOT_SUPPORTED: -32005, // 405
  TIMEOUT: -32008, // 408
  CONFLICT: -32009, // 409
  PRECONDITION_FAILED: -32012, // 412
  PAYLOAD_TOO_LARGE: -32013, // 413
  UNPROCESSABLE_CONTENT: -32022, // 422
  TOO_MANY_REQUESTS: -32029, // 429
  CLIENT_CLOSED_REQUEST: -32099, // 499
} as const;

export const TRPC_ERROR_CODES_BY_NUMBER = invert(TRPC_ERROR_CODES_BY_KEY);
type ValueOf<TObj> = TObj[keyof TObj];

export type TRPC_ERROR_CODE_NUMBER = ValueOf<typeof TRPC_ERROR_CODES_BY_KEY>;
export type TRPC_ERROR_CODE_KEY = keyof typeof TRPC_ERROR_CODES_BY_KEY;