export const BizCode = {
  Success: 0,
  ServerError: 10000,
  DbError: 10001,
  CacheError: 10002,
  SerializationError: 10003,
  ExternalServiceError: 10004,
  ConfigError: 10005,
  Unauthorized: 20000,
  AccessTokenExpired: 20001,
  RefreshTokenExpired: 20002,
  PermissionDenied: 20003,
  AccountDisabled: 20004,
  InvalidCredentials: 20005,
  MissingHeader: 20006,
  BadRequest: 30000,
  ValidationError: 30001,
  ResourceNotFound: 30002,
  ResourceAlreadyExists: 30003,
  MethodNotAllowed: 30004,
  RateLimitExceeded: 40000,
  PreconditionFailed: 40001,
} as const;

export type BizCode = (typeof BizCode)[keyof typeof BizCode];

export type SuccessResponse<T> = {
  code: typeof BizCode.Success;
  message: string;
  data?: T;
  trace_id?: string;
};

export type ErrorResponse = {
  code: Exclude<BizCode, typeof BizCode.Success> | number;
  message: string;
  details?: unknown;
  trace_id?: string;
};

export type ApiResponse<T> = SuccessResponse<T> | ErrorResponse;

export function isSuccessResponse<T>(res: ApiResponse<T>): res is SuccessResponse<T> {
  return res.code === BizCode.Success;
}

export function isErrorResponse<T>(res: ApiResponse<T>): res is ErrorResponse {
  return res.code !== BizCode.Success;
}