/* -*- 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 <sal/macros.h>

#include <svx/ParseContext.hxx>

#include <svx/strings.hrc>

#include <svx/dialmgr.hxx>

#include <i18nlangtag/languagetag.hxx>

#include <unotools/syslocale.hxx>

#include <vcl/svapp.hxx>

#include <osl/diagnose.h>

#include <fmstring.hrc>

#include <mutex>

using namespace svxform;

using namespace ::connectivity;

OSystemParseContext::OSystemParseContext()

    : IParseContext()

{

    for (size_t i = 0; i < SAL_N_ELEMENTS(RID_RSC_SQL_INTERNATIONAL); ++i)

        m_aLocalizedKeywords.push_back(SvxResId(RID_RSC_SQL_INTERNATIONAL[i]));

}

OSystemParseContext::OSystemParseContext(bool /*bInit*/)

    : IParseContext()

{

}

OSystemParseContext::~OSystemParseContext()

{

}

css::lang::Locale OSystemParseContext::getPreferredLocale( ) const

{

    return SvtSysLocale().GetLanguageTag().getLocale();

}

OUString OSystemParseContext::getErrorMessage(ErrorCode _eCode) const

{

    OUString aMsg;

    SolarMutexGuard aGuard;

    switch (_eCode)

    {

        case ErrorCode::General:               aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_ERROR); break;

        case ErrorCode::ValueNoLike:           aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_VALUE_NO_LIKE); break;

        case ErrorCode::FieldNoLike:           aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_FIELD_NO_LIKE); break;

        case ErrorCode::InvalidCompare:        aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_CRIT_NO_COMPARE); break;

        case ErrorCode::InvalidIntCompare:     aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_INT_NO_VALID); break;

        case ErrorCode::InvalidDateCompare:    aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_ACCESS_DAT_NO_VALID); break;

        case ErrorCode::InvalidRealCompare:    aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_REAL_NO_VALID); break;

        case ErrorCode::InvalidTableNosuch:    aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_TABLE); break;

        case ErrorCode::InvalidTableOrQuery:   aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_TABLE_OR_QUERY); break;

        case ErrorCode::InvalidColumn:         aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_COLUMN); break;

        case ErrorCode::InvalidTableExist:     aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_TABLE_EXISTS); break;

        case ErrorCode::InvalidQueryExist:     aMsg = SvxResId(RID_STR_SVT_SQL_SYNTAX_QUERY_EXISTS); break;

        default: break;

    }

    return aMsg;

}

OString OSystemParseContext::getIntlKeywordAscii(InternationalKeyCode _eKey) const

{

    size_t nIndex = 0;

    switch ( _eKey )

    {

        case InternationalKeyCode::Like:      nIndex = 0; break;

        case InternationalKeyCode::Not:       nIndex = 1; break;

        case InternationalKeyCode::Null:      nIndex = 2; break;

        case InternationalKeyCode::True:      nIndex = 3; break;

        case InternationalKeyCode::False:     nIndex = 4; break;

        case InternationalKeyCode::Is:        nIndex = 5; break;

        case InternationalKeyCode::Between:   nIndex = 6; break;

        case InternationalKeyCode::Or:        nIndex = 7; break;

        case InternationalKeyCode::And:       nIndex = 8; break;

        case InternationalKeyCode::Avg:       nIndex = 9; break;

        case InternationalKeyCode::Count:     nIndex = 10; break;

        case InternationalKeyCode::Max:       nIndex = 11; break;

        case InternationalKeyCode::Min:       nIndex = 12; break;

        case InternationalKeyCode::Sum:       nIndex = 13; break;

        case InternationalKeyCode::Every:     nIndex = 14; break;

        case InternationalKeyCode::Any:       nIndex = 15; break;

        case InternationalKeyCode::Some:      nIndex = 16; break;

        case InternationalKeyCode::StdDevPop: nIndex = 17; break;

        case InternationalKeyCode::StdDevSamp: nIndex = 18; break;

        case InternationalKeyCode::VarSamp:  nIndex = 19; break;

        case InternationalKeyCode::VarPop:   nIndex = 20; break;

        case InternationalKeyCode::Collect:   nIndex = 21; break;

        case InternationalKeyCode::Fusion:    nIndex = 22; break;

        case InternationalKeyCode::Intersection: nIndex = 23; break;

        case InternationalKeyCode::None:

            OSL_FAIL( "OSystemParseContext::getIntlKeywordAscii: illegal argument!" );

            break;

    }

    OSL_ENSURE( nIndex < m_aLocalizedKeywords.size(), "OSystemParseContext::getIntlKeywordAscii: invalid index!" );

    OString sKeyword;

    if ( nIndex < m_aLocalizedKeywords.size() )

        sKeyword = OUStringToOString(m_aLocalizedKeywords[nIndex], RTL_TEXTENCODING_UTF8);

    return sKeyword;

}

IParseContext::InternationalKeyCode OSystemParseContext::getIntlKeyCode(const OString& rToken) const

{

    static const IParseContext::InternationalKeyCode Intl_TokenID[] =

    {

        InternationalKeyCode::Like, InternationalKeyCode::Not, InternationalKeyCode::Null, InternationalKeyCode::True,

        InternationalKeyCode::False, InternationalKeyCode::Is, InternationalKeyCode::Between, InternationalKeyCode::Or,

        InternationalKeyCode::And, InternationalKeyCode::Avg, InternationalKeyCode::Count, InternationalKeyCode::Max,

        InternationalKeyCode::Min, InternationalKeyCode::Sum, InternationalKeyCode::Every,

        InternationalKeyCode::Any, InternationalKeyCode::Some, InternationalKeyCode::StdDevPop,

        InternationalKeyCode::StdDevSamp, InternationalKeyCode::VarSamp, InternationalKeyCode::VarPop,

        InternationalKeyCode::Collect, InternationalKeyCode::Fusion, InternationalKeyCode::Intersection

    };

    sal_uInt32 const nCount = SAL_N_ELEMENTS(Intl_TokenID);

    for (sal_uInt32 i = 0; i < nCount; i++)

    {

        OString aKey = getIntlKeywordAscii(Intl_TokenID[i]);

        if (rToken.equalsIgnoreAsciiCase(aKey))

            return Intl_TokenID[i];

    }

    return InternationalKeyCode::None;

}

ONeutralParseContext::ONeutralParseContext()

    : OSystemParseContext(false)

{

    std::locale aLocale = Translate::Create("svx", LanguageTag(u"en-US"_ustr));

    for (size_t i = 0; i < SAL_N_ELEMENTS(RID_RSC_SQL_INTERNATIONAL); ++i)

        m_aLocalizedKeywords.push_back(Translate::get(RID_RSC_SQL_INTERNATIONAL[i], aLocale));

}

ONeutralParseContext::~ONeutralParseContext()

{

}

namespace

{

    std::mutex& getSafetyMutex()

    {

        static ::std::mutex s_aSafety;

        return s_aSafety;

    }

    int s_nCounter;

    OSystemParseContext* getSharedContext(OSystemParseContext* _pContext, bool _bSet)

    {

        static OSystemParseContext* s_pSharedContext = nullptr;

        if ( _pContext && !s_pSharedContext )

        {

            s_pSharedContext = _pContext;

            return s_pSharedContext;

        }

        if ( _bSet )

        {

            OSystemParseContext* pReturn = _pContext ? _pContext : s_pSharedContext;

            s_pSharedContext = _pContext;

            return pReturn;

        }

        return s_pSharedContext;

    }

}

OParseContextClient::OParseContextClient()

{

    std::scoped_lock aGuard( getSafetyMutex() );

    ++s_nCounter;

    if ( 1 == s_nCounter )

    {   // first instance

        getSharedContext( new OSystemParseContext, false );

    }

}

OParseContextClient::~OParseContextClient()

{

    std::scoped_lock aGuard( getSafetyMutex() );

    --s_nCounter;

    if ( 0 == s_nCounter )

        delete getSharedContext(nullptr,true);

}

const OSystemParseContext* OParseContextClient::getParseContext() const

{

    return getSharedContext(nullptr, false);

}

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