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#pragma once
#include "counting_raw_reader.h"
#include <yt/cpp/mapreduce/interface/io.h>
#include <yt/cpp/mapreduce/skiff/wire_type.h>
#include <yt/cpp/mapreduce/skiff/unchecked_parser.h>
#include <util/stream/buffered.h>
namespace NYT {
namespace NDetail {
////////////////////////////////////////////////////////////////////////////////
class TSkiffTableReader
: public INodeReaderImpl
{
public:
TSkiffTableReader(
::TIntrusivePtr<TRawTableReader> input,
const std::shared_ptr<NSkiff::TSkiffSchema>& schema);
~TSkiffTableReader() override;
virtual const TNode& GetRow() const override;
virtual void MoveRow(TNode* row) override;
bool IsValid() const override;
void Next() override;
ui32 GetTableIndex() const override;
ui32 GetRangeIndex() const override;
ui64 GetRowIndex() const override;
void NextKey() override;
TMaybe<size_t> GetReadByteCount() const override;
bool IsRawReaderExhausted() const override;
private:
struct TSkiffTableSchema;
private:
void EnsureValidity() const;
void ReadRow();
static TVector<TSkiffTableSchema> CreateSkiffTableSchemas(const std::shared_ptr<NSkiff::TSkiffSchema>& schema);
private:
NDetail::TCountingRawTableReader Input_;
TBufferedInput BufferedInput_;
std::optional<NSkiff::TUncheckedSkiffParser> Parser_;
TVector<TSkiffTableSchema> Schemas_;
TNode Row_;
bool Valid_ = true;
bool AfterKeySwitch_ = false;
bool Finished_ = false;
TMaybe<ui64> RangeIndex_;
ui64 RangeIndexShift_ = 0;
TMaybe<ui64> RowIndex_;
ui32 TableIndex_ = 0;
};
////////////////////////////////////////////////////////////////////////////////
} // namespace NDetail
} // namespace NYT
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