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#include "std/list.hpp"
#include "std/string.hpp"
#include "std/vector.hpp"
#include "std/utility.hpp"
namespace search
{
/// Saves last search queries for search suggestion.
class QuerySaver
{
public:
/// Search request <locale, request>.
using TSearchRequest = pair<string, string>;
QuerySaver();
void Add(TSearchRequest const & query);
/// Returns several last saved queries from newest to oldest query.
/// @see kMaxSuggestCount in implementation file.
list<TSearchRequest> const & Get() const { return m_topQueries; }
/// Clear last queries storage. All data will be lost.
void Clear();
private:
friend void UnitTest_QuerySaverSerializerTest();
friend void UnitTest_QuerySaverCorruptedStringTest();
void Serialize(string & data) const;
void Deserialize(string const & data);
void Save();
void Load();
list<TSearchRequest> m_topQueries;
};
} // namespace search
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