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, @unchecked Sendable {
    public required init(contents: Data) 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 {
            self.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
                                        )
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}