// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_SERVICES_LIBASSISTANT_GRPC_SERVICES_STATUS_PROVIDER_H_
#define CHROMEOS_ASH_SERVICES_LIBASSISTANT_GRPC_SERVICES_STATUS_PROVIDER_H_
#include "base/observer_list.h"
#include "base/observer_list_types.h"
#include "chromeos/ash/services/libassistant/grpc/external_services/grpc_services_observer.h"
#include "chromeos/ash/services/libassistant/grpc/services_status_observer.h"
#include "chromeos/assistant/internal/proto/shared/proto/v2/delegate/event_handler_interface.pb.h"
namespace ash::libassistant {
// Component monitoring Libassistant gRPC services status, exposing method to
// get current services status and notify observers on status change.
class ServicesStatusProvider
: public GrpcServicesObserver<::assistant::api::OnHeartbeatEventRequest> {
public:
ServicesStatusProvider();
ServicesStatusProvider(const ServicesStatusProvider&) = delete;
ServicesStatusProvider& operator=(const ServicesStatusProvider&) = delete;
~ServicesStatusProvider() override;
// GrpcServiceObserver implementation:
void OnGrpcMessage(
const ::assistant::api::OnHeartbeatEventRequest& request) override;
void AddObserver(ServicesStatusObserver* observer);
void RemoveObserver(ServicesStatusObserver* observer);
private:
ServicesStatus status_ = ServicesStatus::OFFLINE;
base::ObserverList<ServicesStatusObserver> observers_;
};
} // namespace ash::libassistant
#endif // CHROMEOS_ASH_SERVICES_LIBASSISTANT_GRPC_SERVICES_STATUS_PROVIDER_H_