/*
 * 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 "sidebar/EnumContext.hxx"

#include <map>

namespace sfx2 { namespace sidebar {

#define A2S(pString) (::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(pString)))

namespace {

typedef ::std::map<rtl::OUString,EnumContext::Application> ApplicationMap;
typedef ::std::vector<rtl::OUString> ApplicationVector;
static ApplicationMap maApplicationMap;
static ApplicationVector maApplicationVector;

typedef ::std::map<rtl::OUString,EnumContext::Context> ContextMap;
typedef ::std::vector<rtl::OUString> ContextVector;
static ContextMap maContextMap;
static ContextVector maContextVector;

}

const sal_Int32 EnumContext::NoMatch = 4;
const sal_Int32 EnumContext::OptimalMatch = 0;  // Neither application nor context name is "any".


EnumContext::EnumContext (void)
    : meApplication(Application_None),
      meContext(Context_Unknown)
{
}




EnumContext::EnumContext (
    const Application eApplication,
    const Context eContext)
    : meApplication(eApplication),
      meContext(eContext)
{
}




EnumContext::EnumContext (
    const ::rtl::OUString& rsApplicationName,
    const ::rtl::OUString& rsContextName)
    : meApplication(GetApplicationEnum(rsApplicationName)),
      meContext(GetContextEnum(rsContextName))
{
}




sal_Int32 EnumContext::GetCombinedContext (void) const
{
    return CombinedEnumContext(meApplication, meContext);
}




sal_Int32 EnumContext::GetCombinedContext_DI (void) const
{
    return CombinedEnumContext(GetApplication_DI(), meContext);
}




EnumContext::Application EnumContext::GetApplication_DI (void) const
{
     switch (meApplication)
     {
         case Application_Draw:
         case Application_Impress:
            return Application_DrawImpress;

         case Application_Writer:
         case Application_WriterGlobal:
         case Application_WriterWeb:
         case Application_WriterXML:
         case Application_WriterForm:
         case Application_WriterReport:
             return Application_WriterVariants;

         default:
             return meApplication;
     }
}




EnumContext::Application EnumContext::GetApplication (void) const
{
    return meApplication;
}




const ::rtl::OUString& EnumContext::GetApplicationName (void) const
{
    return EnumContext::GetApplicationName(meApplication);
}




const ::rtl::OUString& EnumContext::GetContextName (void) const
{
    return EnumContext::GetContextName(meContext);
}




bool EnumContext::operator== (const EnumContext aOther)
{
    return meApplication==aOther.meApplication
        && meContext==aOther.meContext;
}




bool EnumContext::operator!= (const EnumContext aOther)
{
    return meApplication!=aOther.meApplication
        || meContext!=aOther.meContext;
}




void EnumContext::AddEntry (const ::rtl::OUString& rsName, const Application eApplication)
{
    maApplicationMap[rsName] = eApplication;
    OSL_ASSERT(eApplication<=__LastApplicationEnum);
    if (maApplicationVector.size() <= size_t(eApplication))
        maApplicationVector.resize(eApplication+1);
    maApplicationVector[eApplication]=rsName;
}




void EnumContext::ProvideApplicationContainers (void)
{
    if (maApplicationMap.empty())
    {
        maApplicationVector.resize(static_cast<size_t>(EnumContext::__LastApplicationEnum)+1);
        AddEntry(A2S("com.sun.star.text.TextDocument"), EnumContext::Application_Writer);
        AddEntry(A2S("com.sun.star.text.GlobalDocument"), EnumContext::Application_WriterGlobal);
        AddEntry(A2S("com.sun.star.text.WebDocument"), EnumContext::Application_WriterWeb);
        AddEntry(A2S("com.sun.star.xforms.XMLFormDocument"), EnumContext::Application_WriterXML);
        AddEntry(A2S("com.sun.star.sdb.FormDesign"), EnumContext::Application_WriterForm);
        AddEntry(A2S("com.sun.star.sdb.TextReportDesign"), EnumContext::Application_WriterReport);
        AddEntry(A2S("com.sun.star.sheet.SpreadsheetDocument"), EnumContext::Application_Calc);
        AddEntry(A2S("com.sun.star.drawing.DrawingDocument"), EnumContext::Application_Draw);
        AddEntry(A2S("com.sun.star.presentation.PresentationDocument"), EnumContext::Application_Impress);

        AddEntry(A2S("any"), EnumContext::Application_Any);
        AddEntry(A2S("none"), EnumContext::Application_None);
    }
}




EnumContext::Application EnumContext::GetApplicationEnum (const ::rtl::OUString& rsApplicationName)
{
    ProvideApplicationContainers();

    ApplicationMap::const_iterator iApplication(
        maApplicationMap.find(rsApplicationName));
    if (iApplication != maApplicationMap.end())
        return iApplication->second;
    else
        return EnumContext::Application_None;
}




const ::rtl::OUString& EnumContext::GetApplicationName (const Application eApplication)
{
    ProvideApplicationContainers();

    const sal_Int32 nIndex (eApplication);
    if (nIndex<0 || nIndex>= __LastApplicationEnum)
        return maApplicationVector[Application_None];
    else
        return maApplicationVector[nIndex];
}




void EnumContext::AddEntry (const ::rtl::OUString& rsName, const Context eApplication)
{
    maContextMap[rsName] = eApplication;
    OSL_ASSERT(eApplication<=__LastContextEnum);
    if (maContextVector.size() <= size_t(eApplication))
        maContextVector.resize(eApplication+1);
    maContextVector[eApplication] = rsName;
}




void EnumContext::ProvideContextContainers (void)
{
    if (maContextMap.empty())
    {
        maContextVector.resize(static_cast<size_t>(__LastContextEnum)+1);
        AddEntry(A2S("any"), Context_Any);
        AddEntry(A2S("default"), Context_Default);
        AddEntry(A2S("empty"), Context_Empty);
#define AddContext(context) AddEntry(A2S(#context), Context_##context);
        AddContext(3DObject);
        AddContext(Annotation);
        AddContext(Auditing);
        AddContext(Cell);
        AddContext(Chart);
        AddContext(Chart);
        AddContext(Draw);
        AddContext(DrawPage);
        AddContext(DrawText);
        AddContext(EditCell);
        AddContext(Form);
        AddContext(Frame);
        AddContext(Graphic);
        AddContext(HandoutPage);
        AddContext(MasterPage);
        AddContext(Media);
        AddContext(MultiObject);
        AddContext(NotesPage);
        AddContext(OLE);
        AddContext(OutlineText);
        AddContext(Pivot);
        AddContext(SlidesorterPage);
        AddContext(Table);
        AddContext(Text);
        AddContext(TextObject);
#undef AddContext
    }
}




EnumContext::Context EnumContext::GetContextEnum (const ::rtl::OUString& rsContextName)
{
    ProvideContextContainers();

    ContextMap::const_iterator iContext(
        maContextMap.find(rsContextName));
    if (iContext != maContextMap.end())
        return iContext->second;
    else
        return EnumContext::Context_Unknown;
}




const ::rtl::OUString& EnumContext::GetContextName (const Context eContext)
{
    ProvideContextContainers();

    const sal_Int32 nIndex (eContext);
    if (nIndex<0 || nIndex>= __LastContextEnum)
        return maContextVector[Context_Unknown];
    else
        return maContextVector[nIndex];
}




sal_Int32 EnumContext::EvaluateMatch (
    const EnumContext& rOther) const
{
    const bool bApplicationNameIsAny (rOther.meApplication == Application_Any);
    if (rOther.meApplication==meApplication || bApplicationNameIsAny)
    {
        // Application name matches.
        const bool bContextNameIsAny (rOther.meContext == Context_Any);
        if (rOther.meContext==meContext || bContextNameIsAny)
        {
            // Context name matches.
            return (bApplicationNameIsAny ? 1 : 0)
                + (bContextNameIsAny ? 2 : 0);
        }
    }
    return NoMatch;
}




sal_Int32 EnumContext::EvaluateMatch (const ::std::vector<EnumContext>& rOthers) const
{
    sal_Int32 nBestMatch (NoMatch);

    for (::std::vector<EnumContext>::const_iterator
             iContext(rOthers.begin()),
             iEnd(rOthers.end());
         iContext!=iEnd;
         ++iContext)
    {
        const sal_Int32 nMatch (EvaluateMatch(*iContext));
        if (nMatch < nBestMatch)
        {
            if (nMatch == OptimalMatch)
            {
                // We will find no better match so stop searching.
                return OptimalMatch;
            }
            nBestMatch = nMatch;
        }
    }
    return nBestMatch;
}



} } // end of namespace sfx2::sidebar