libsignal/swift/Sources/LibSignalClient/zkgroup/CreateCallLinkCredential.swift

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

import Foundation
import SignalFfi

public class CreateCallLinkCredential: ByteArray {

  public required init(contents: [UInt8]) throws {
    try super.init(contents, checkValid: signal_create_call_link_credential_check_valid_contents)
  }

  public func present<RoomId: ContiguousBytes>(roomId: RoomId, userId: Aci, serverParams: GenericServerPublicParams, callLinkParams: CallLinkSecretParams) -> CreateCallLinkCredentialPresentation {
    return failOnError {
      present(roomId: roomId, userId: userId, serverParams: serverParams, callLinkParams: callLinkParams, randomness: try .generate())
    }
  }

  public func present<RoomId: ContiguousBytes>(roomId: RoomId, userId: Aci, serverParams: GenericServerPublicParams, callLinkParams: CallLinkSecretParams, randomness: Randomness) -> CreateCallLinkCredentialPresentation {
    return failOnError {
      try withUnsafeBorrowedBuffer { contents in
        try roomId.withUnsafeBorrowedBuffer { roomId in
          try userId.withPointerToFixedWidthBinary { userId in
            try serverParams.withUnsafeBorrowedBuffer { serverParams in
              try callLinkParams.withUnsafeBorrowedBuffer { callLinkParams in
                try randomness.withUnsafePointerToBytes { randomness in
                  try invokeFnReturningVariableLengthSerialized {
                    signal_create_call_link_credential_present_deterministic($0, contents, roomId, userId, serverParams, callLinkParams, randomness)
                  }
                }
              }
            }
          }
        }
      }
    }
  }

}