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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_SYSTEM_FEDERATED_FEDERATED_SERVICE_CONTROLLER_IMPL_H_
#define ASH_SYSTEM_FEDERATED_FEDERATED_SERVICE_CONTROLLER_IMPL_H_
#include "ash/ash_export.h"
#include "ash/public/cpp/session/session_controller.h"
#include "ash/public/cpp/session/session_observer.h"
#include "ash/system/federated/federated_service_controller.h"
#include "base/scoped_observation.h"
#include "chromeos/ash/services/federated/public/mojom/federated_service.mojom.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace ash::federated {
// FederatedServiceControllerImpl listens to LoginStatus and invokes federated
// service when user signs in therefore cryptohome is mounted. After that it
// keeps listening to the LoginStatus and changes the availability accordingly.
class ASH_EXPORT FederatedServiceControllerImpl
: public FederatedServiceController,
public ash::SessionObserver {
public:
FederatedServiceControllerImpl();
FederatedServiceControllerImpl(const FederatedServiceControllerImpl&) =
delete;
FederatedServiceControllerImpl& operator=(
const FederatedServiceControllerImpl&) = delete;
~FederatedServiceControllerImpl() override;
// SessionObserver:
void OnLoginStatusChanged(LoginStatus login_status) override;
// FederatedServiceController:
// If false, federated customers reporting examples is a no-op. Federated
// service will abandon the example because of no valid cryptohome hence no
// example database.
// To avoid data loss and meaningless calls, customers should always check
// `IsServiceAvailable()` before reporting examples.
bool IsServiceAvailable() const override;
private:
base::ScopedObservation<SessionController, SessionObserver>
session_observation_{this};
// A clone of primordial FederatedService interface.
mojo::Remote<chromeos::federated::mojom::FederatedService> federated_service_;
bool service_available_ = false;
bool reported_ = false;
base::WeakPtrFactory<FederatedServiceControllerImpl> weak_ptr_factory_{this};
};
} // namespace ash::federated
#endif // ASH_SYSTEM_FEDERATED_FEDERATED_SERVICE_CONTROLLER_IMPL_H_
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