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import type { EncryptedJson } from './types.ts';
import { u8aConcat } from 'https://deno.land/x/polkadot@0.2.33/util/mod.ts';
import { naclEncrypt } from '../nacl/index.ts';import { scryptEncode, scryptToU8a } from '../scrypt/index.ts';import { jsonEncryptFormat } from './encryptFormat.ts';
export function jsonEncrypt (data: Uint8Array, contentType: string[], passphrase?: string | null): EncryptedJson {  let isEncrypted = false;  let encoded = data;
  if (passphrase) {    const { params, password, salt } = scryptEncode(passphrase);    const { encrypted, nonce } = naclEncrypt(encoded, password.subarray(0, 32));
    isEncrypted = true;    encoded = u8aConcat(scryptToU8a(salt, params), nonce, encrypted);  }
  return jsonEncryptFormat(encoded, contentType, isEncrypted);}