ios/AuthenticatorShared/Core/Auth/Services/ClientFido2Service.swift

import BitwardenSdk
import Foundation

/// A protocol for a service that handles Fido2 tasks. This is similar to
/// `ClientFido2Protocol` but returns the protocols so they can be mocked for testing.
///
protocol ClientFido2Service: AnyObject {
    /// Returns the `ClientFido2Authenticator` to perform Fido2 authenticator tasks.
    /// - Parameters:
    ///   - userInterface: `Fido2UserInterface` with necessary platform side logic related to UI.
    ///   - credentialStore: `Fido2CredentialStore` with necessary platform side logic related to credential storage.
    /// - Returns: Returns the `ClientFido2Authenticator` to perform Fido2 authenticator tasks
    func authenticator(
        userInterface: Fido2UserInterface,
        credentialStore: Fido2CredentialStore,
    ) -> ClientFido2AuthenticatorProtocol

    /// Returns the `ClientFido2Client` to perform Fido2 client tasks.
    /// - Parameters:
    ///   - userInterface: `Fido2UserInterface` with necessary platform side logic related to UI.
    ///   - credentialStore: `Fido2CredentialStore` with necessary platform side logic related to credential storage.
    /// - Returns: Returns the `ClientFido2Client` to perform Fido2 client tasks
    func client(
        userInterface: Fido2UserInterface,
        credentialStore: Fido2CredentialStore,
    ) -> ClientFido2ClientProtocol

    /// Decrypts the `CipherView` Fido2 credentials but returning an array of `Fido2CredentialAutofillView`
    /// - Parameter cipherView: `CipherView` containing the Fido2 credentials to decrypt.
    /// - Returns: An array of decrypted Fido2 credentials of type `Fido2CredentialAutofillView`.
    func decryptFido2AutofillCredentials(cipherView: CipherView) throws -> [Fido2CredentialAutofillView]
}

// MARK: ClientFido2

extension ClientFido2: ClientFido2Service {
    func authenticator(
        userInterface: Fido2UserInterface,
        credentialStore: Fido2CredentialStore,
    ) -> ClientFido2AuthenticatorProtocol {
        authenticator(userInterface: userInterface, credentialStore: credentialStore) as ClientFido2Authenticator
    }

    func client(
        userInterface: Fido2UserInterface,
        credentialStore: Fido2CredentialStore,
    ) -> ClientFido2ClientProtocol {
        client(userInterface: userInterface, credentialStore: credentialStore) as ClientFido2Client
    }

    func decryptFido2AutofillCredentials(cipher cipherView: CipherView) throws -> [Fido2CredentialAutofillView] {
        try decryptFido2AutofillCredentials(cipherView: cipherView)
    }
}