// import Swift
import Foundation
// import Security
import CryptoKit
import LocalAuthentication

func is_support_secure_enclave() -> Bool {
    let se = SecureEnclave.isAvailable
    print("Supports SE: \(se)")
    return se
}

enum StringError: Error {
    case base64error
}


// // var error: Unmanaged<CFError>? = nil;
// // guard
// // let accessCtrl = SecAccessControlCreateWithFlags(
// //    nil,
// //    kSecAttrAccessibleWhenUnlockedThisDeviceOnly,
// //    [.privateKeyUsage, .biometryCurrentSet],
// //    &error
// // ) else {
// //   throw error!.takeRetainedValue() as Swift.Error
// // }
// // var privateKeyReference = try CryptoKit.SecureEnclave.P256.KeyAgreement.PrivateKey.init(
// //    accessControl: accessCtrl
// // );
// // var dataRepresentation = privateKeyReference.dataRepresentation;
//
// guard let dataRepresentation = Data(base64Encoded: "BIIB2DGCAdQwgfUMAnJrMYHuMAsMA2JpZAQElxyY8jBIDANwdWIEQQQOrOKfvtBWnEquk6+92hH5yxO6SN5TSIA7/kP0DMdzRlojtNQJ3RUs7uJfG/stjJ/Cza+1i+hISbAGaL0BasDPMAgMA3JrbwIBADAHD-----") else {
//    throw StringError.base64error
// }
//
//
// let context = LAContext();
// let p =  try SecureEnclave.P256.KeyAgreement.PrivateKey(
//         dataRepresentation: dataRepresentation, authenticationContext: context)
//
// let ephemeralSecretKey = P256.KeyAgreement.PrivateKey()
// let sharedSecret = try ephemeralSecretKey.sharedSecretFromKeyAgreement(with: p.publicKey)
//
//
// let sharedSecret2 = try p.sharedSecretFromKeyAgreement(with: ephemeralSecretKey.publicKey)
//
//
//
// // print("Private key reference: \(privateKeyReference)");
//
// // print("Private key reference - publicKey: \(privateKeyReference.publicKey)");
//
// // // print("Private key reference - publicKey - ageRecipient: \(privateKeyReference.publicKey.ageRecipient)");
//
// // print("Private key reference - dataRepresentation: \(privateKeyReference.dataRepresentation)");
// // print("Private key reference - dataRepresentation: \(privateKeyReference.dataRepresentation.base64EncodedString())");
//
// // https://www.andyibanez.com/posts/cryptokit-secure-enclave/
//
//
//
// print("Shared secret: \(sharedSecret)")
// print("Shared secret: \(sharedSecret2)")