// Copyright (c) 2017-2022 Cloudflare, Inc.
// Licensed under the Apache 2.0 license found in the LICENSE file or at:
//     https://opensource.org/licenses/Apache-2.0

import { Readable as _Readable, Duplex } from 'node:stream';
import type EventEmitter from 'node:events';
import {
  kState,
  kIsWritable,
  kIsReadable,
  kIsClosedPromise,
  kIsDestroyed,
} from 'node-internal:streams_util';

export declare class ReadableState {
  readable?: boolean;
  ended?: boolean;
  endEmitted?: boolean;
  reading?: boolean;
  constructed?: boolean;
  closed?: boolean;
  closeEmitted?: boolean;
  destroyed?: boolean;
  errored?: Error | null;
  errorEmitted?: boolean;
  length?: number;
  highWaterMark?: number;
  autoDestroy?: boolean;
  emitClose?: boolean;
  readingMore?: boolean;
  readableDidRead?: boolean;
  readableAborted?: boolean;
  [kState]: number;
}

export declare class Readable extends _Readable {
  _readableState: ReadableState;
  _writableState: undefined;
  _closed: boolean;
  errored?: Error | null;
  writableErrored: boolean;
  readableErrored: boolean;
  writableFinished: undefined;
  readableFinished?: boolean;
  readable: boolean;
  writable?: boolean;
  aborted?: boolean;
  req?: EventEmitter;

  writableEnded?: boolean;

  [kIsWritable]: boolean;
  [kIsReadable]: boolean;
  [kIsClosedPromise]: Promise<unknown>;
  [kIsDestroyed]: boolean;
}

export const from: typeof Duplex.from;
export const fromWeb: typeof Duplex.fromWeb;
export const toWeb: typeof Duplex.toWeb;
export const wrap: typeof Duplex.wrap;