/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 */

#pragma once

#include <sal/config.h>

#include <rtl/ref.hxx>

#include <rtl/ustring.hxx>

#include <vcl/timer.hxx>

#include <address.hxx>

#include <optional>

#include <vector>

#include <documentstreamaccess.hxx>

class ScDocShell;

namespace sc {

namespace datastreams {

    class ReaderThread;

}

class DataStream

{

public:

    DataStream(const DataStream&) = delete;

    const DataStream& operator=(const DataStream&) = delete;

    struct Cell

    {

        struct Str

        {

            size_t Pos;

            size_t Size;

        };

        union

        {

            Str maStr;

            double mfValue;

        };

        bool mbValue;

        Cell();

        Cell( const Cell& r );

    };

    struct Line

    {

        OString maLine;

        std::vector<Cell> maCells;

    };

    typedef std::vector<Line> LinesType;

    enum MoveType { NO_MOVE, RANGE_DOWN, MOVE_DOWN, MOVE_UP };

    static void MakeToolbarVisible();

    static DataStream* Set(ScDocShell *pShell, const OUString& rURL, const ScRange& rRange,

            sal_Int32 nLimit, MoveType eMove);

    DataStream(

        ScDocShell *pShell, const OUString& rURL, const ScRange& rRange,

        sal_Int32 nLimit, MoveType eMove);

    ~DataStream();

    ScRange GetRange() const;

    const OUString& GetURL() const { return msURL; }

    MoveType GetMove() const { return meOrigMove;}

    bool IsRefreshOnEmptyLine() const { return mbRefreshOnEmptyLine;}

    void Decode(

        const OUString& rURL, const ScRange& rRange, sal_Int32 nLimit,

        MoveType eMove);

    bool ImportData();

    void StartImport();

    void StopImport();

    void SetRefreshOnEmptyLine( bool bVal );

private:

    Line ConsumeLine();

    void MoveData();

    void Text2Doc();

    void Refresh();

    DECL_LINK( ImportTimerHdl, Timer*, void );

private:

    ScDocShell* mpDocShell;

    DocumentStreamAccess maDocAccess;

    OUString msURL;

    MoveType meOrigMove; // Initial move setting. This one gets saved to file.

    MoveType meMove; // move setting during streaming, which may change in the middle.

    bool mbRunning;

    bool mbValuesInLine;

    bool mbRefreshOnEmptyLine;

    std::optional<LinesType> moLines;

    size_t mnLinesCount;

    size_t mnLinesSinceRefresh;

    double mfLastRefreshTime;

    SCROW mnCurRow;

    ScRange maStartRange;

    ScRange maEndRange;

    Timer maImportTimer;

    rtl::Reference<datastreams::ReaderThread> mxReaderThread;

    bool mbIsFirst;

    bool mbIsUpdate;

};

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */