// Copyright 2017-2021 @polkadot/types authors & contributors
// SPDX-License-Identifier: Apache-2.0

import type BN from 'bn.js';
import type { Codec } from '../types';

export interface CompactEncodable extends Codec {
  bitLength (): number;
  toBn (): BN;
  toNumber (): number;
}

export type UIntBitLength = 8 | 16 | 32 | 64 | 128 | 256;

// The 520 here is a weird one - it is explicitly for a [u8; 65] as found as a EcdsaSignature,
// and 264 here is explicity for a [u8; 33] as found as EcdsaPublic key.
// Likewise 160 is for [u8; 20], which is also a H160, i.e. an Ethereum address. Both these are
// as a result of the Polkadot claims module. (Technically we don't need the 520 in here)
export type U8aBitLength = 8 | 16 | 32 | 64 | 128 | 160 | 256 | 264 | 512 | 520 | 1024 | 2048;