libsignal/node/ts/zkgroup/calllinks/CallLinkSecretParams.ts

//
// Copyright 2023 Signal Messenger, LLC.
// SPDX-License-Identifier: AGPL-3.0-only
//

import ByteArray from '../internal/ByteArray.js';
import * as Native from '../../Native.js';

import CallLinkPublicParams from './CallLinkPublicParams.js';
import UuidCiphertext from '../groups/UuidCiphertext.js';
import { Aci } from '../../Address.js';

export default class CallLinkSecretParams extends ByteArray {
  private readonly __type?: never;

  static deriveFromRootKey(callLinkRootKey: Uint8Array): CallLinkSecretParams {
    return new CallLinkSecretParams(
      Native.CallLinkSecretParams_DeriveFromRootKey(callLinkRootKey)
    );
  }

  constructor(contents: Uint8Array) {
    super(contents, Native.CallLinkSecretParams_CheckValidContents);
  }

  getPublicParams(): CallLinkPublicParams {
    return new CallLinkPublicParams(
      Native.CallLinkSecretParams_GetPublicParams(this.contents)
    );
  }

  decryptUserId(userId: UuidCiphertext): Aci {
    return Aci.parseFromServiceIdFixedWidthBinary(
      Native.CallLinkSecretParams_DecryptUserId(this.contents, userId.contents)
    );
  }

  encryptUserId(userId: Aci): UuidCiphertext {
    return new UuidCiphertext(
      Native.CallLinkSecretParams_EncryptUserId(
        this.contents,
        userId.getServiceIdFixedWidthBinary()
      )
    );
  }
}