/*
 * Copyright (C) Ascensio System SIA, 2009-2026
 *
 * This program is a free software product. You can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License (AGPL)
 * version 3 as published by the Free Software Foundation, together with the
 * additional terms provided in the LICENSE file.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
 * details, see the GNU AGPL at: https://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA by email at info@onlyoffice.com
 * or by postal mail at 20A-6 Ernesta Birznieka-Upisha Street, Riga,
 * LV-1050, Latvia, European Union.
 *
 * The interactive user interfaces in modified versions of the Program
 * are required to display Appropriate Legal Notices in accordance with
 * Section 5 of the GNU AGPL version 3.
 *
 * No trademark rights are granted under this License.
 *
 * All non-code elements of the Product, including illustrations,
 * icon sets, and technical writing content, are licensed under the
 * Creative Commons Attribution-ShareAlike 4.0 International License:
 * https://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
 * This license applies only to such non-code elements and does not
 * modify or replace the licensing terms applicable to the Program's
 * source code, which remains licensed under the GNU Affero General
 * Public License v3.
 *
 * SPDX-License-Identifier: AGPL-3.0-only
 */
#pragma once

#include "libdjvu/DjVuDocument.h"
#include "libdjvu/DjVuImage.h"
#include "libdjvu/GBitmap.h"
#include "libdjvu/GScaler.h"
#include "libdjvu/IFFByteStream.h"
#include "libdjvu/BSByteStream.h"
#include "libdjvu/DataPool.h"
#include "libdjvu/DjVuText.h"
#include "libdjvu/DjVmNav.h"
#include "libdjvu/IW44Image.h"

#define ZIP_NO_COMPRESSION         0
#define ZIP_BEST_SPEED             1
#define ZIP_BEST_COMPRESSION       9
#define ZIP_DEFAULT_COMPRESSION  (-1)

#include "../DesktopEditor/xml/include/xmlutils.h"
#include "../DesktopEditor/graphics/IRenderer.h"
#include "../DesktopEditor/graphics/pro/Fonts.h"

class CDjVuFileImplementation
{
private:
    std::wstring     m_wsTempDirectory;
	GP<DjVuDocument> m_pDoc;
    NSFonts::IApplicationFonts* m_pApplicationFonts;

public:

    CDjVuFileImplementation(NSFonts::IApplicationFonts* pFonts);
	~CDjVuFileImplementation();
    NSFonts::IApplicationFonts* GetFonts();

	bool         LoadFromFile(const std::wstring& wsSrcFileName, const std::wstring& wsXmlOptions = L"");
	bool         LoadFromMemory(BYTE* data, DWORD length, const std::wstring& wsXmlOptions = L"");
	void         Close();
	std::wstring GetTempDirectory() const;
	void         SetTempDirectory(const std::wstring& wsDirectory);
	int          GetPagesCount() const;
	void         GetPageInfo(int nPageIndex, double* pdWidth, double* pdHeight, double* pdDpiX, double* pdDpiY) const;
	void         DrawPageOnRenderer(IRenderer* pRenderer, int nPageIndex, bool* pBreak);
    void         ConvertToPdf(const std::wstring& wsDstPath);
    std::wstring GetInfo();

    BYTE*        GetStructure();
    BYTE*        GetPageGlyphs(int nPageIndex);
    BYTE*        GetPageLinks (int nPageIndex);

	unsigned char* ConvertToPixels(int nPageIndex, int nRasterW, int nRasterH, bool bIsFlip = false);

private:

	unsigned char* ConvertToPixels(GP<DjVuImage>& pPage, int nRasterW, int nRasterH, bool bIsFlip = false, bool bIsSwapRGB = false);

	void               CreateFrame(IRenderer* pRenderer, GP<DjVuImage>& pImage, int nPage, XmlUtils::CXmlNode& oText);
    void               CreatePdfFrame(IRenderer* pRenderer, GP<DjVuImage>& pImage, int nPage, XmlUtils::CXmlNode& oText);
	XmlUtils::CXmlNode ParseText(GP<DjVuImage> pPage);
	void               TextToRenderer(IRenderer* pRenderer, XmlUtils::CXmlNode text, double koef, bool isView = true);
	void               DrawPageText(IRenderer* pRenderer, double* pdCoords, const std::wstring& wsText);
	void               ParseCoords(const std::wstring& wsCoordsStr, double* pdCoords, double dKoef);
};