/* -*- 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 <eventuno.hxx>
#include <miscuno.hxx>
#include <docsh.hxx>
#include <sheetevents.hxx>
#include <unonames.hxx>
#include <comphelper/propertysequence.hxx>
#include <vcl/svapp.hxx>

using namespace ::com::sun::star;

SC_SIMPLE_SERVICE_INFO( ScSheetEventsObj, "ScSheetEventsObj", "com.sun.star.document.Events" )

ScSheetEventsObj::ScSheetEventsObj(ScDocShell* pDocSh, SCTAB nT) :
    mpDocShell( pDocSh ),
    mnTab( nT )
{
    mpDocShell->GetDocument().AddUnoObject(*this);
}

ScSheetEventsObj::~ScSheetEventsObj()
{
    SolarMutexGuard g;

    if (mpDocShell)
        mpDocShell->GetDocument().RemoveUnoObject(*this);
}

void ScSheetEventsObj::Notify( SfxBroadcaster&, const SfxHint& rHint )
{
    //! reference update
    if ( rHint.GetId() == SfxHintId::Dying )
    {
        mpDocShell = nullptr;
    }
}

static ScSheetEventId lcl_GetEventFromName( std::u16string_view aName )
{
    for (sal_Int32 nEvent=0; nEvent<static_cast<sal_Int32>(ScSheetEventId::COUNT); ++nEvent)
        if ( aName == ScSheetEvents::GetEventName(static_cast<ScSheetEventId>(nEvent)) )
            return static_cast<ScSheetEventId>(nEvent);

    return ScSheetEventId::NOTFOUND;      // not found
}

// XNameReplace

void SAL_CALL ScSheetEventsObj::replaceByName( const OUString& aName, const uno::Any& aElement )
{
    SolarMutexGuard aGuard;
    if (!mpDocShell)
        throw uno::RuntimeException();

    ScSheetEventId nEvent = lcl_GetEventFromName(aName);
    if (nEvent == ScSheetEventId::NOTFOUND)
        throw container::NoSuchElementException();

    std::unique_ptr<ScSheetEvents> pNewEvents(new ScSheetEvents);
    const ScSheetEvents* pOldEvents = mpDocShell->GetDocument().GetSheetEvents(mnTab);
    if (pOldEvents)
        *pNewEvents = *pOldEvents;

    OUString aScript;
    if ( aElement.hasValue() )      // empty Any -> reset event
    {
        uno::Sequence<beans::PropertyValue> aPropSeq;
        if ( aElement >>= aPropSeq )
        {
            for (const beans::PropertyValue& rProp : std::as_const(aPropSeq))
            {
                if ( rProp.Name == SC_UNO_EVENTTYPE )
                {
                    OUString aEventType;
                    if ( rProp.Value >>= aEventType )
                    {
                        // only "Script" is supported
                        if ( aEventType != SC_UNO_SCRIPT )
                            throw lang::IllegalArgumentException();
                    }
                }
                else if ( rProp.Name == SC_UNO_SCRIPT )
                    rProp.Value >>= aScript;
            }
        }
    }
    if (!aScript.isEmpty())
        pNewEvents->SetScript( nEvent, &aScript );
    else
        pNewEvents->SetScript( nEvent, nullptr );       // reset

    mpDocShell->GetDocument().SetSheetEvents( mnTab, std::move(pNewEvents) );
    mpDocShell->SetDocumentModified();
}

// XNameAccess

uno::Any SAL_CALL ScSheetEventsObj::getByName( const OUString& aName )
{
    SolarMutexGuard aGuard;
    ScSheetEventId nEvent = lcl_GetEventFromName(aName);
    if (nEvent == ScSheetEventId::NOTFOUND)
        throw container::NoSuchElementException();

    const OUString* pScript = nullptr;
    if (mpDocShell)
    {
        const ScSheetEvents* pEvents = mpDocShell->GetDocument().GetSheetEvents(mnTab);
        if (pEvents)
            pScript = pEvents->GetScript(nEvent);
    }

    uno::Any aRet;
    if (pScript)
    {
        uno::Sequence<beans::PropertyValue> aPropSeq( comphelper::InitPropertySequence({
                { "EventType", uno::Any( OUString("Script") ) },
                { "Script", uno::Any( *pScript ) }
            }));
        aRet <<= aPropSeq;
    }
    // empty Any if nothing was set
    return aRet;
}

uno::Sequence<OUString> SAL_CALL ScSheetEventsObj::getElementNames()
{
    SolarMutexGuard aGuard;
    auto aNames = uno::Sequence<OUString>(int(ScSheetEventId::COUNT));
    auto pNames = aNames.getArray();
    for (sal_Int32 nEvent=0; nEvent<int(ScSheetEventId::COUNT); ++nEvent)
        pNames[nEvent] = ScSheetEvents::GetEventName(static_cast<ScSheetEventId>(nEvent));
    return aNames;
}

sal_Bool SAL_CALL ScSheetEventsObj::hasByName( const OUString& aName )
{
    SolarMutexGuard aGuard;
    ScSheetEventId nEvent = lcl_GetEventFromName(aName);
    return (nEvent != ScSheetEventId::NOTFOUND);
}

// XElementAccess

uno::Type SAL_CALL ScSheetEventsObj::getElementType()
{
    SolarMutexGuard aGuard;
    return cppu::UnoType<uno::Sequence<beans::PropertyValue>>::get();
}

sal_Bool SAL_CALL ScSheetEventsObj::hasElements()
{
    SolarMutexGuard aGuard;
    if (mpDocShell)
        return true;
    return false;
}

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