// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef DEVICE_FIDO_AUTHENTICATOR_SUPPORTED_OPTIONS_H_
#define DEVICE_FIDO_AUTHENTICATOR_SUPPORTED_OPTIONS_H_

#include "base/component_export.h"
#include "base/macros.h"
#include "base/optional.h"
#include "components/cbor/values.h"

namespace device {

// Represents CTAP device properties and capabilities received as a response to
// AuthenticatorGetInfo command.
struct COMPONENT_EXPORT(DEVICE_FIDO) AuthenticatorSupportedOptions {
 public:
  enum class UserVerificationAvailability {
    // e.g. Authenticator with finger print sensor and user's fingerprint is
    // registered to the device.
    kSupportedAndConfigured,
    // e.g. Authenticator with fingerprint sensor without user's fingerprint
    // registered.
    kSupportedButNotConfigured,
    kNotSupported
  };

  enum class ClientPinAvailability {
    kSupportedAndPinSet,
    kSupportedButPinNotSet,
    kNotSupported,
  };

  AuthenticatorSupportedOptions();
  AuthenticatorSupportedOptions(const AuthenticatorSupportedOptions& other);
  AuthenticatorSupportedOptions& operator=(
      const AuthenticatorSupportedOptions& other);
  ~AuthenticatorSupportedOptions();

  // Indicates that the device is attached to the client and therefore can't be
  // removed and used on another client.
  bool is_platform_device = false;
  // Indicates that the device is capable of storing keys on the device itself
  // and therefore can satisfy the authenticatorGetAssertion request with
  // allowList parameter not specified or empty.
  bool supports_resident_key = false;
  // Indicates whether the device is capable of verifying the user on its own.
  UserVerificationAvailability user_verification_availability =
      UserVerificationAvailability::kNotSupported;
  // supports_user_presence indicates whether the device can assert user
  // presence. E.g. a touch for a USB device, or being placed in the reader
  // field for an NFC device.
  bool supports_user_presence = true;
  // Represents whether client pin in set and stored in device. Set as null
  // optional if client pin capability is not supported by the authenticator.
  ClientPinAvailability client_pin_availability =
      ClientPinAvailability::kNotSupported;
};

COMPONENT_EXPORT(DEVICE_FIDO)
cbor::Value ConvertToCBOR(const AuthenticatorSupportedOptions& options);

}  // namespace device

#endif  // DEVICE_FIDO_AUTHENTICATOR_SUPPORTED_OPTIONS_H_