#pragma once

#include <DataTypes/Serializations/ISerialization.h>
#include <Common/PODArray.h>

namespace DB
{

class SerializationFixedString : public ISerialization
{
private:
    size_t n;

public:
    explicit SerializationFixedString(size_t n_) : n(n_) {}
    size_t getN() const { return n; }

    void serializeBinary(const Field & field, WriteBuffer & ostr, const FormatSettings &) const override;
    void deserializeBinary(Field & field, ReadBuffer & istr, const FormatSettings &) const override;
    void serializeBinary(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
    void deserializeBinary(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;

    void serializeBinaryBulk(const IColumn & column, WriteBuffer & ostr, size_t offset, size_t limit) const override;
    void deserializeBinaryBulk(IColumn & column, ReadBuffer & istr, size_t limit, double avg_value_size_hint) const override;

    void serializeText(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;

    void deserializeWholeText(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
    bool tryDeserializeWholeText(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;

    void serializeTextEscaped(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
    void deserializeTextEscaped(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
    bool tryDeserializeTextEscaped(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;

    void serializeTextQuoted(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
    void deserializeTextQuoted(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
    bool tryDeserializeTextQuoted(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;

    void serializeTextJSON(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
    void deserializeTextJSON(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
    bool tryDeserializeTextJSON(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;

    void serializeTextXML(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;

    void serializeTextCSV(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
    void deserializeTextCSV(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
    bool tryDeserializeTextCSV(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;

    void serializeTextMarkdown(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;

    /// Makes sure that the length of a newly inserted string to `chars` is equal to getN().
    /// If the length is less than getN() the function will add zero characters up to getN().
    /// If the length is greater than getN() the function will throw an exception.
    static void alignStringLength(size_t n, PaddedPODArray<UInt8> & data, size_t string_start);
    static bool tryAlignStringLength(size_t n, PaddedPODArray<UInt8> & data, size_t string_start);
};

}