mutating func sendAuthenticationMethod()

in Sources/NIOSOCKS/State/ServerStateMachine.swift [122:142]

• 20 lines of code
• 4 McCabe index (conditional complexity)

    mutating func sendAuthenticationMethod(_ selected: SelectedAuthenticationMethod) throws {
        switch self.state {
        case .waitingToSendAuthenticationMethod:
            ()
        case .inactive,
             .waitingForClientGreeting,
             .authenticating,
             .waitingForClientRequest,
             .waitingToSendResponse,
             .active,
             .error:
             throw SOCKSError.InvalidServerState()
        }
        
        self.authenticationMethod = selected.method
        if selected.method == .noneRequired {
            self.state = .waitingForClientRequest
        } else {
            self.state = .authenticating
        }
    }