/* -*- 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/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#include <string.h>

#include <comphelper/mimeconfighelper.hxx>

#include <o3tl/sprintf.hxx>

#include <rtl/character.hxx>

#include <tools/stream.hxx>

#include <tools/globname.hxx>

// SvGlobalName ----------------------------------------------------------------

SvGlobalName::SvGlobalName( const css::uno::Sequence < sal_Int8 >& aSeq )

{

    // create SvGlobalName from a platform independent representation

    if ( aSeq.getLength() == 16 )

    {

        m_aData.Data1 = ( ( ( ( ( static_cast<sal_uInt8>(aSeq[0]) << 8 ) + static_cast<sal_uInt8>(aSeq[1]) ) << 8 ) + static_cast<sal_uInt8>(aSeq[2]) ) << 8 ) + static_cast<sal_uInt8>(aSeq[3]);

        m_aData.Data2 = ( static_cast<sal_uInt8>(aSeq[4]) << 8 ) + static_cast<sal_uInt8>(aSeq[5]);

        m_aData.Data3 = ( static_cast<sal_uInt8>(aSeq[6]) << 8 ) + static_cast<sal_uInt8>(aSeq[7]);

        for( int nInd = 0; nInd < 8; nInd++ )

            m_aData.Data4[nInd] = static_cast<sal_uInt8>(aSeq[nInd+8]);

    }

}

SvStream& WriteSvGlobalName( SvStream& rOStr, const SvGlobalName & rObj )

{

    rOStr.WriteUInt32( rObj.m_aData.Data1 );

    rOStr.WriteUInt16( rObj.m_aData.Data2 );

    rOStr.WriteUInt16( rObj.m_aData.Data3 );

    rOStr.WriteBytes( &rObj.m_aData.Data4, 8 );

    return rOStr;

}

SvStream& operator >> ( SvStream& rStr, SvGlobalName & rObj )

{

    rStr.ReadUInt32( rObj.m_aData.Data1 );

    rStr.ReadUInt16( rObj.m_aData.Data2 );

    rStr.ReadUInt16( rObj.m_aData.Data3 );

    rStr.ReadBytes( &rObj.m_aData.Data4, 8 );

    return rStr;

}

void SvGlobalName::MakeFromMemory( void const * pData )

{

    memcpy( &m_aData, pData, sizeof( m_aData ) );

}

bool SvGlobalName::MakeId( std::u16string_view rIdStr )

{

    const sal_Unicode *pStr = rIdStr.data();

    if( rIdStr.size() != 36

      || '-' != pStr[ 8 ]  || '-' != pStr[ 13 ]

      || '-' != pStr[ 18 ] || '-' != pStr[ 23 ] )

        return false;

    SvGUID aGuid = {};

    auto asciiHexDigitToNumber = [](sal_Unicode c) -> sal_uInt8

    {

        if (rtl::isAsciiDigit(c))

            return c - '0';

        else

            return rtl::toAsciiUpperCase(c) - 'A' + 10;

    };

    for( int i = 0; i < 8; i++ )

    {

        if( !rtl::isAsciiHexDigit( *pStr ) )

            return false;

        aGuid.Data1 = aGuid.Data1 * 16 + asciiHexDigitToNumber( *pStr++ );

    }

    pStr++;

    for( int i = 0; i < 4; i++ )

    {

        if( !rtl::isAsciiHexDigit( *pStr ) )

            return false;

        aGuid.Data2 = aGuid.Data2 * 16 + asciiHexDigitToNumber( *pStr++ );

    }

    pStr++;

    for( int i = 0; i < 4; i++ )

    {

        if( !rtl::isAsciiHexDigit( *pStr ) )

            return false;

        aGuid.Data3 = aGuid.Data3 * 16 + asciiHexDigitToNumber( *pStr++ );

    }

    pStr++;

    for( int i = 0; i < 16; i++ )

    {

        if( !rtl::isAsciiHexDigit( *pStr ) )

            return false;

        aGuid.Data4[i/2] = aGuid.Data4[i/2] * 16 + asciiHexDigitToNumber( *pStr++ );

        if( i == 3 )

            pStr++;

    }

    m_aData = aGuid;

    return true;

}

OUString SvGlobalName::GetHexName() const

{

    char buf[ 37 ];

    int n = o3tl::sprintf(buf,

                    "%8.8" SAL_PRIXUINT32 "-%4.4X-%4.4X-%2.2x%2.2x-%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x",

                    m_aData.Data1, m_aData.Data2, m_aData.Data3,

                    m_aData.Data4[0], m_aData.Data4[1], m_aData.Data4[2], m_aData.Data4[3],

                    m_aData.Data4[4], m_aData.Data4[5], m_aData.Data4[6], m_aData.Data4[7]);

    assert(n == 36);

    return OUString::createFromAscii(std::string_view(buf, n));

}

css::uno::Sequence < sal_Int8 > SvGlobalName::GetByteSequence() const

{

    // platform independent representation of a "GlobalName"

    // maybe transported remotely

    return comphelper::MimeConfigurationHelper::GetSequenceClassID(

        m_aData.Data1, m_aData.Data2, m_aData.Data3,

        m_aData.Data4[0], m_aData.Data4[1], m_aData.Data4[2], m_aData.Data4[3],

        m_aData.Data4[4], m_aData.Data4[5], m_aData.Data4[6], m_aData.Data4[7]);

}

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