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// 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 COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_SERVICE_PROXY_IMPL_H_
#define COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_SERVICE_PROXY_IMPL_H_
#include <memory>
#include <vector>
#include "base/containers/flat_map.h"
#include "base/memory/raw_ptr.h"
#include "base/observer_list.h"
#include "components/segmentation_platform/internal/database/segment_info_database.h"
#include "components/segmentation_platform/internal/platform_options.h"
#include "components/segmentation_platform/internal/scheduler/model_execution_scheduler.h"
#include "components/segmentation_platform/internal/selection/segment_result_provider.h"
#include "components/segmentation_platform/public/proto/segmentation_platform.pb.h"
#include "components/segmentation_platform/public/service_proxy.h"
namespace segmentation_platform {
using proto::SegmentId;
struct Config;
class ExecutionService;
class SegmentSelectorImpl;
class SegmentResultProvider;
class SignalStorageConfig;
// A helper class to expose internals of the segmentationss service to a logging
// component and/or debug UI.
class ServiceProxyImpl : public ServiceProxy,
public ModelExecutionScheduler::Observer {
public:
ServiceProxyImpl(
SegmentInfoDatabase* segment_db,
SignalStorageConfig* signal_storage_config,
const std::vector<std::unique_ptr<Config>>* configs,
const PlatformOptions& options,
base::flat_map<std::string, std::unique_ptr<SegmentSelectorImpl>>*
segment_selectors);
~ServiceProxyImpl() override;
void AddObserver(ServiceProxy::Observer* observer) override;
void RemoveObserver(ServiceProxy::Observer* observer) override;
ServiceProxyImpl(const ServiceProxyImpl& other) = delete;
ServiceProxyImpl& operator=(const ServiceProxyImpl& other) = delete;
void SetExecutionService(ExecutionService* model_execution_scheduler);
// ServiceProxy impl.
void GetServiceStatus() override;
void ExecuteModel(SegmentId segment_id) override;
void OverwriteResult(SegmentId segment_id, float result) override;
void SetSelectedSegment(const std::string& segmentation_key,
SegmentId segment_id) override;
// Called when segmentation service status changed.
void OnServiceStatusChanged(bool is_initialized, int status_flag);
private:
// Called to update observers with new segmentation info. If
// |update_service_status| is true, status about the segmentation service will
// be sent.
void UpdateObservers(bool update_service_status);
void OnSegmentInfoFetchedForExecution(
std::optional<proto::SegmentInfo> segment_info);
// Called after retrieving all the segmentation info from the DB.
void OnGetAllSegmentationInfo(
std::unique_ptr<SegmentInfoDatabase::SegmentInfoList> segment_info_list);
void OnModelExecutionFinished(
std::unique_ptr<SegmentResultProvider::SegmentResult> result);
// ModelExecutionScheduler::Observer overrides.
void OnModelExecutionCompleted(SegmentId segment_id) override;
const bool force_refresh_results_ = false;
bool is_service_initialized_ = false;
int service_status_flag_ = 0;
const raw_ptr<SegmentInfoDatabase, DanglingUntriaged> segment_db_;
const raw_ptr<SignalStorageConfig> signal_storage_config_;
const raw_ptr<const std::vector<std::unique_ptr<Config>>> configs_;
base::ObserverList<ServiceProxy::Observer> observers_;
raw_ptr<ExecutionService> execution_service_{nullptr};
const raw_ptr<
base::flat_map<std::string, std::unique_ptr<SegmentSelectorImpl>>>
segment_selectors_;
std::unique_ptr<SegmentResultProvider> segment_result_provider_;
base::WeakPtrFactory<ServiceProxyImpl> weak_ptr_factory_{this};
};
} // namespace segmentation_platform
#endif // COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_SERVICE_PROXY_IMPL_H_
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