/*

 * Copyright (c) 2021, Jan de Visser <jan@de-visser.net>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#pragma once

#include <AK/NonnullRefPtr.h>

#include <LibSQL/Forward.h>

#include <LibSQL/Meta.h>

#include <LibSQL/Tuple.h>

#include <LibSQL/Value.h>

namespace SQL {

/**

 * A Tuple is an element of a sequential-access persistence data structure

 * like a flat table. Like a key it has a definition for all its parts,

 * but unlike a key this definition is not optional.

 *

 * FIXME Tuples should logically belong to a TupleStore object, but right now

 * they stand by themselves; they contain a row's worth of data and a pointer

 * to the next Tuple.

 */

class Row : public Tuple {

public:

    explicit Row(NonnullRefPtr<TableDef>, Block::Index block_index = 0);

    virtual ~Row() override = default;

    [[nodiscard]] Block::Index next_block_index() const { return m_next_block_index; }

    void set_next_block_index(Block::Index index) { m_next_block_index = index; }

    TableDef const& table() const { return *m_table; }

    TableDef& table() { return *m_table; }

    [[nodiscard]] virtual size_t length() const override { return Tuple::length() + sizeof(Block::Index); }

    virtual void serialize(Serializer&) const override;

    virtual void deserialize(Serializer&) override;

private:

    NonnullRefPtr<TableDef> m_table;

    Block::Index m_next_block_index { 0 };

};

}