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#pragma once
#include "storage/diff_scheme/diff_types.hpp"
#include "storage/index.hpp"
#include "base/observer_list.hpp"
#include "base/thread_checker.hpp"
#include "base/worker_thread.hpp"
#include <functional>
#include <mutex>
#include <utility>
namespace storage
{
namespace diffs
{
class Manager final
{
public:
struct ApplyDiffParams
{
string m_diffReadyPath;
TLocalFilePtr m_diffFile;
TLocalFilePtr m_oldMwmFile;
};
class Observer
{
public:
virtual ~Observer() = default;
virtual void OnDiffStatusReceived(Status const status) = 0;
};
FileInfo const & InfoFor(storage::TCountryId const & countryId) const;
bool IsPossibleToAutoupdate() const;
bool HasDiffFor(storage::TCountryId const & countryId) const;
Status GetStatus() const;
void SetStatus(Status status);
void Load(LocalMapsInfo && info);
void ApplyDiff(ApplyDiffParams && p, std::function<void(bool const result)> const & task);
bool AddObserver(Observer & observer) { return m_observers.Add(observer); }
bool RemoveObserver(Observer const & observer) { return m_observers.Remove(observer); }
private:
bool HasDiffForUnsafe(storage::TCountryId const & countryId) const;
mutable std::mutex m_mutex;
Status m_status = Status::Undefined;
NameFileInfoMap m_diffs;
LocalMapsInfo m_localMapsInfo;
base::ObserverListUnsafe<Observer> m_observers;
base::WorkerThread m_workerThread;
};
} // namespace diffs
} // namespace storage
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