/*
 * 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
 */

#include "xlsx_fonts.h"
#include "xlsx_font.h"

#include "../Format/odfcontext.h"

#include <xml/simple_xml_writer.h>

#include <boost/functional.hpp>
#include <boost/unordered_set.hpp>

namespace cpdoccore {
namespace oox {

class xlsx_fonts::Impl
{
public:
	Impl(odf_reader::fonts_container & fonts) : fonts_container(fonts){}


    size_t size() const;
    size_t fontId(	const odf_reader::text_format_properties_ptr &textProp,
					const odf_reader::paragraph_format_properties			*parProp,
					const odf_reader::style_table_cell_properties_attlist	*cellProp, bool default_set);

	void serialize(std::wostream & _Wostream) const;

    
private:
    typedef boost::unordered_set<xlsx_font, boost::hash<xlsx_font> > fonts_array_t;
    fonts_array_t fonts_;

	odf_reader::fonts_container & fonts_container;

};

namespace 
{

struct compare_xlsx_fonts
{
    bool operator() (xlsx_font const & x1, xlsx_font const & x2)
    {
        return x1.index < x2.index;            
    }
};

}

void xlsx_fonts::Impl::serialize(std::wostream & _Wostream) const
{
    std::vector<xlsx_font> fonts;
            
	for (boost::unordered_set<xlsx_font, boost::hash<xlsx_font>>::iterator it = fonts_.begin(); it != fonts_.end(); ++it)
    {
        fonts.push_back(*it);
    }

    std::sort(fonts.begin(), fonts.end(), compare_xlsx_fonts());

    CP_XML_WRITER(_Wostream)
    {
        CP_XML_NODE(L"fonts")
        {
            CP_XML_ATTR(L"count", fonts.size());
			
			for (size_t i = 0; i < fonts.size(); ++i)
			{
				xlsx_serialize(CP_XML_STREAM(), fonts[i]);
			}
		}
	}
}

size_t xlsx_fonts::Impl::fontId(const odf_reader::text_format_properties_ptr &textProp,
								const odf_reader::paragraph_format_properties			*parProp,
								const odf_reader::style_table_cell_properties_attlist	*cellProp, bool default_set)
{
    xlsx_font fnt = xlsx_font(textProp, parProp, cellProp, default_set, fonts_container);
   
	fonts_array_t::const_iterator i = fonts_.find(fnt);
    if (i != fonts_.end())
        return i->index;
    else if (fnt.bEnabled)
    {
        fnt.index = fonts_.size();
        fonts_.insert(fnt);
        return fnt.index;
    }
    else
        return 0;
}

//const xlsx_font & xlsx_fonts::Impl::getFont(size_t id) const
//{
//    return fonts_.at(id);
//}

/*
int xlsx_fonts::Impl::getIndex(const odf_reader::text_format_properties_ptr textProp,
                         const odf_reader::paragraph_format_properties * parProp,
                         const odf_reader::style_table_cell_properties_attlist * cellProp) const
{
    const xlsx_font newFont = OdfFont2XlsxFont(textProp, parProp, cellProp);
    for (size_t i = 0; i < fonts_.size(); ++i)
    {
        if (fonts_[i] == newFont)
            return static_cast<int>(i);
    }
    return -1;
}
*/

size_t xlsx_fonts::Impl::size() const { return fonts_.size(); }


////////////////////////////////////////////////////////////////////////////////////////////////

xlsx_fonts::xlsx_fonts(odf_reader::fonts_container & fonts): impl_(new xlsx_fonts::Impl(fonts))
{
}

xlsx_fonts::~xlsx_fonts()
{
}

size_t xlsx_fonts::size() const
{
    return impl_->size();
}

void xlsx_fonts::serialize(std::wostream & _Wostream) const
{
    return impl_->serialize(_Wostream);
}

size_t xlsx_fonts::fontId(const odf_reader::text_format_properties_ptr &textProp,
    const odf_reader::paragraph_format_properties *parProp,
    const odf_reader::style_table_cell_properties_attlist *cellProp, bool default_set)
{
    return impl_->fontId(textProp, parProp, cellProp, default_set);
}

//const xlsx_font & xlsx_fonts::getFont(size_t id) const
//{
//    return impl_->getFont(id);
//}    

}
}