libsignal/swift/Sources/LibSignalClient/zkgroup/ClientZkProfileOperations.swift

//
// Copyright 2020-2022 Signal Messenger, LLC.
// SPDX-License-Identifier: AGPL-3.0-only
//

import Foundation
import SignalFfi

public class ClientZkProfileOperations {

  let serverPublicParams: ServerPublicParams

  public init(serverPublicParams: ServerPublicParams) {
    self.serverPublicParams = serverPublicParams
  }

  public func createProfileKeyCredentialRequestContext(userId: Aci, profileKey: ProfileKey) throws -> ProfileKeyCredentialRequestContext {
    return try createProfileKeyCredentialRequestContext(randomness: Randomness.generate(), userId: userId, profileKey: profileKey)
  }

  public func createProfileKeyCredentialRequestContext(randomness: Randomness, userId: Aci, profileKey: ProfileKey) throws -> ProfileKeyCredentialRequestContext {
    return try serverPublicParams.withUnsafePointerToSerialized { serverPublicParams in
      try randomness.withUnsafePointerToBytes { randomness in
        try userId.withPointerToFixedWidthBinary { userId in
          try profileKey.withUnsafePointerToSerialized { profileKey in
            try invokeFnReturningSerialized {
              signal_server_public_params_create_profile_key_credential_request_context_deterministic($0, serverPublicParams, randomness, userId, profileKey)
            }
          }
        }
      }
    }
  }

  public func receiveExpiringProfileKeyCredential(
    profileKeyCredentialRequestContext: ProfileKeyCredentialRequestContext,
    profileKeyCredentialResponse: ExpiringProfileKeyCredentialResponse,
    now: Date = Date()
  ) throws -> ExpiringProfileKeyCredential {
    return try serverPublicParams.withUnsafePointerToSerialized { serverPublicParams in
      try profileKeyCredentialRequestContext.withUnsafePointerToSerialized { requestContext in
        try profileKeyCredentialResponse.withUnsafePointerToSerialized { response in
          try invokeFnReturningSerialized {
            signal_server_public_params_receive_expiring_profile_key_credential($0, serverPublicParams, requestContext, response, UInt64(now.timeIntervalSince1970))
          }
        }
      }
    }
  }

  public func createProfileKeyCredentialPresentation(groupSecretParams: GroupSecretParams, profileKeyCredential: ExpiringProfileKeyCredential) throws -> ProfileKeyCredentialPresentation {
    return try createProfileKeyCredentialPresentation(randomness: Randomness.generate(), groupSecretParams: groupSecretParams, profileKeyCredential: profileKeyCredential)
  }

  public func createProfileKeyCredentialPresentation(randomness: Randomness, groupSecretParams: GroupSecretParams, profileKeyCredential: ExpiringProfileKeyCredential) throws -> ProfileKeyCredentialPresentation {
    return try serverPublicParams.withUnsafePointerToSerialized { serverPublicParams in
      try randomness.withUnsafePointerToBytes { randomness in
        try groupSecretParams.withUnsafePointerToSerialized { groupSecretParams in
          try profileKeyCredential.withUnsafePointerToSerialized { profileKeyCredential in
            try invokeFnReturningVariableLengthSerialized {
              signal_server_public_params_create_expiring_profile_key_credential_presentation_deterministic($0, serverPublicParams, randomness, groupSecretParams, profileKeyCredential)
            }
          }
        }
      }
    }
  }

}