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import type { HexString } from 'https://deno.land/x/polkadot@0.2.40/util/types.ts';import type { HashType } from './types.ts';
import { secp256k1 } from 'https://esm.sh/@noble/curves@1.0.0/secp256k1.js';
import { hasBigInt, u8aToU8a } from 'https://deno.land/x/polkadot@0.2.40/util/mod.ts';import { isReady, secp256k1Recover as wasm } from 'https://deno.land/x/polkadot@0.2.40/wasm-crypto/mod.ts';
import { secp256k1Compress } from './compress.ts';import { secp256k1Expand } from './expand.ts';
/** * @name secp256k1Recover * @description Recovers a publicKey from the supplied signature */export function secp256k1Recover (msgHash: HexString | Uint8Array | string, signature: HexString | Uint8Array | string, recovery: number, hashType: HashType = 'blake2', onlyJs?: boolean): Uint8Array {  const sig = u8aToU8a(signature).subarray(0, 64);  const msg = u8aToU8a(msgHash);  const publicKey = !hasBigInt || (!onlyJs && isReady())    ? wasm(msg, sig, recovery)    : secp256k1.Signature      .fromCompact(sig)      .addRecoveryBit(recovery)      .recoverPublicKey(msg)      .toRawBytes();
  if (!publicKey) {    throw new Error('Unable to recover publicKey from signature');  }
  return hashType === 'keccak'    ? secp256k1Expand(publicKey, onlyJs)    : secp256k1Compress(publicKey, onlyJs);}