//
//  AuthenticationServiceProxyProtocol.swift
//  ElementX
//
//  Created by Doug on 29/06/2022.
//  Copyright © 2022 Element. All rights reserved.
//

import AppAuth
import Foundation

enum AuthenticationServiceError: Error {
    /// An error occurred during OIDC authentication.
    case oidcError(OIDCError)
    case invalidServer
    case invalidCredentials
    case invalidHomeserverAddress
    case accountDeactivated
    case failedLoggingIn
}

@MainActor
protocol AuthenticationServiceProxyProtocol {
    var homeserver: LoginHomeserver { get }
    
    /// Sets up the service for login on the specified homeserver address.
    func configure(for homeserverAddress: String) async -> Result<Void, AuthenticationServiceError>
    /// Performs login using OIDC for the current homeserver.
    func loginWithOIDC(userAgent: OIDExternalUserAgentIOS) async -> Result<UserSessionProtocol, AuthenticationServiceError>
    /// Performs a password login using the current homeserver.
    func login(username: String, password: String) async -> Result<UserSessionProtocol, AuthenticationServiceError>
}