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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_DOWNLOAD_INTERNAL_BACKGROUND_SERVICE_IOS_BACKGROUND_DOWNLOAD_SERVICE_IMPL_H_
#define COMPONENTS_DOWNLOAD_INTERNAL_BACKGROUND_SERVICE_IOS_BACKGROUND_DOWNLOAD_SERVICE_IMPL_H_
#include <map>
#include <memory>
#include <optional>
#include <set>
#include <string>
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/time/clock.h"
#include "base/time/time.h"
#include "components/download/internal/background_service/initializable_background_download_service.h"
#include "components/download/internal/background_service/log_source.h"
#include "components/download/internal/background_service/model_impl.h"
#include "components/download/internal/background_service/service_config_impl.h"
#include "components/download/internal/background_service/startup_status.h"
#include "components/download/public/task/download_task_types.h"
namespace download {
class BackgroundDownloadTaskHelper;
class ClientSet;
class FileMonitor;
class Logger;
class LogSink;
class Model;
struct Configuration;
struct DownloadParams;
struct SchedulingParams;
class BackgroundDownloadServiceImpl
: public InitializableBackgroundDownloadService,
public LogSource,
public Model::Client {
public:
BackgroundDownloadServiceImpl(
std::unique_ptr<ClientSet> clients,
std::unique_ptr<Model> model,
std::unique_ptr<BackgroundDownloadTaskHelper> download_helper,
std::unique_ptr<FileMonitor> file_monitor,
const base::FilePath& download_dir,
std::unique_ptr<Logger> logger,
LogSink* log_sink,
base::Clock* clock);
~BackgroundDownloadServiceImpl() override;
private:
// InitializableBackgroundDownloadService implementation.
void Initialize(base::OnceClosure callback) override;
const ServiceConfig& GetConfig() override;
void OnStartScheduledTask(DownloadTaskType task_type,
TaskFinishedCallback callback) override;
bool OnStopScheduledTask(DownloadTaskType task_type) override;
ServiceStatus GetStatus() override;
void StartDownload(DownloadParams download_params) override;
void PauseDownload(const std::string& guid) override;
void ResumeDownload(const std::string& guid) override;
void CancelDownload(const std::string& guid) override;
void ChangeDownloadCriteria(const std::string& guid,
const SchedulingParams& params) override;
Logger* GetLogger() override;
void HandleEventsForBackgroundURLSession(
base::OnceClosure completion_handler) override;
// Model::Client implementation.
void OnModelReady(bool success) override;
void OnModelHardRecoverComplete(bool success) override;
void OnItemAdded(bool success,
DownloadClient client,
const std::string& guid) override;
void OnItemUpdated(bool success,
DownloadClient client,
const std::string& guid) override;
void OnItemRemoved(bool success,
DownloadClient client,
const std::string& guid) override;
// LogSource implementation.
Controller::State GetControllerState() override;
const StartupStatus& GetStartupStatus() override;
LogSource::EntryDetailsList GetServiceDownloads() override;
std::optional<LogSource::EntryDetails> GetServiceDownload(
const std::string& guid) override;
void PruneDbRecords();
void OnFileMonitorInitialized(bool success);
void OnFilesPruned();
void NotifyServiceUnavailable();
void InvokeStartCallback(DownloadClient client,
const std::string& guid,
DownloadParams::StartResult result,
DownloadParams::StartCallback callback);
void OnDownloadFinished(DownloadClient download_client,
const std::string& guid,
bool success,
const base::FilePath& file_path,
int64_t file_size);
void OnDownloadUpdated(DownloadClient download_client,
const std::string& guid,
int64_t bytes_downloaded);
void MaybeUpdateProgress(const std::string& guid, uint64_t bytes_downloaded);
std::unique_ptr<Configuration> config_;
ServiceConfigImpl service_config_;
std::unique_ptr<ClientSet> clients_;
std::unique_ptr<Model> model_;
std::unique_ptr<BackgroundDownloadTaskHelper> download_helper_;
std::unique_ptr<FileMonitor> file_monitor_;
std::unique_ptr<Logger> logger_;
LogSink* log_sink_;
StartupStatus startup_status_;
std::map<std::string, DownloadParams::StartCallback> start_callbacks_;
base::Time update_time_;
base::Clock* clock_;
base::OnceClosure init_callback_;
// A directory to hold download service files. The files in here will be
// pruned frequently.
const base::FilePath download_dir_;
std::set<std::string> cancelled_downloads_;
SEQUENCE_CHECKER(sequence_checker_);
base::WeakPtrFactory<BackgroundDownloadServiceImpl> weak_ptr_factory_{this};
};
} // namespace download
#endif // COMPONENTS_DOWNLOAD_INTERNAL_BACKGROUND_SERVICE_IOS_BACKGROUND_DOWNLOAD_SERVICE_IMPL_H_
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