/* -*- 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 <uielement/constitemcontainer.hxx>
#include <uielement/rootitemcontainer.hxx>
#include <uielement/itemcontainer.hxx>

#include <com/sun/star/beans/PropertyAttribute.hpp>

#include <cppuhelper/implbase.hxx>
#include <comphelper/propertysetinfo.hxx>
#include <comphelper/servicehelper.hxx>

using namespace cppu;
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::beans;
using namespace com::sun::star::container;

const int PROPHANDLE_UINAME     = 1;
const int PROPCOUNT             = 1;
const char PROPNAME_UINAME[]    = "UIName";

namespace framework
{

ConstItemContainer::ConstItemContainer()
{
}

ConstItemContainer::ConstItemContainer( const ItemContainer& rItemContainer )
{
    ShareGuard aLock( rItemContainer.m_aShareMutex );
    copyItemContainer( rItemContainer.m_aItemVector );
}

ConstItemContainer::ConstItemContainer( const Reference< XIndexAccess >& rSourceContainer, bool bFastCopy )
{
    // We also have to copy the UIName property
    try
    {
        Reference< XPropertySet > xPropSet( rSourceContainer, UNO_QUERY );
        if ( xPropSet.is() )
        {
            xPropSet->getPropertyValue("UIName") >>= m_aUIName;
        }
    }
    catch ( const Exception& )
    {
    }

    if ( rSourceContainer.is() )
    {
        try
        {
            sal_Int32 nCount = rSourceContainer->getCount();
            m_aItemVector.reserve(nCount);
            if ( bFastCopy )
            {
                for ( sal_Int32 i = 0; i < nCount; i++ )
                {
                    Sequence< PropertyValue > aPropSeq;
                    if ( rSourceContainer->getByIndex( i ) >>= aPropSeq )
                        m_aItemVector.push_back( aPropSeq );
                }
            }
            else
            {
                for ( sal_Int32 i = 0; i < nCount; i++ )
                {
                    Sequence< PropertyValue > aPropSeq;
                    if ( rSourceContainer->getByIndex( i ) >>= aPropSeq )
                    {
                        sal_Int32 nContainerIndex = -1;
                        Reference< XIndexAccess > xIndexAccess;
                        for ( sal_Int32 j = 0; j < aPropSeq.getLength(); j++ )
                        {
                            if ( aPropSeq[j].Name == "ItemDescriptorContainer" )
                            {
                                aPropSeq[j].Value >>= xIndexAccess;
                                nContainerIndex = j;
                                break;
                            }
                        }

                        if ( xIndexAccess.is() && nContainerIndex >= 0 )
                            aPropSeq[nContainerIndex].Value <<= deepCopyContainer( xIndexAccess );

                        m_aItemVector.push_back( aPropSeq );
                    }
                }
            }
        }
        catch ( const IndexOutOfBoundsException& )
        {
        }
    }
}

ConstItemContainer::~ConstItemContainer()
{
}

// private
void ConstItemContainer::copyItemContainer( const std::vector< Sequence< PropertyValue > >& rSourceVector )
{
    const sal_uInt32 nCount = rSourceVector.size();
    for ( sal_uInt32 i = 0; i < nCount; i++ )
    {
        sal_Int32 nContainerIndex = -1;
        Sequence< PropertyValue > aPropSeq( rSourceVector[i] );
        Reference< XIndexAccess > xIndexAccess;
        for ( sal_Int32 j = 0; j < aPropSeq.getLength(); j++ )
        {
            if ( aPropSeq[j].Name == "ItemDescriptorContainer" )
            {
                aPropSeq[j].Value >>= xIndexAccess;
                nContainerIndex = j;
                break;
            }
        }

        if ( xIndexAccess.is() && nContainerIndex >= 0 )
            aPropSeq[nContainerIndex].Value <<= deepCopyContainer( xIndexAccess );

        m_aItemVector.push_back( aPropSeq );
    }
}

Reference< XIndexAccess > ConstItemContainer::deepCopyContainer( const Reference< XIndexAccess >& rSubContainer )
{
    Reference< XIndexAccess > xReturn;
    if ( rSubContainer.is() )
    {
        ItemContainer*      pSource = ItemContainer::GetImplementation( rSubContainer );
        ConstItemContainer* pSubContainer( nullptr );
        if ( pSource )
            pSubContainer = new ConstItemContainer( *pSource );
        else
            pSubContainer = new ConstItemContainer( rSubContainer );
        xReturn.set( static_cast< OWeakObject* >( pSubContainer ), UNO_QUERY );
    }

    return xReturn;
}

// XUnoTunnel
sal_Int64 ConstItemContainer::getSomething( const css::uno::Sequence< sal_Int8 >& rIdentifier ) throw(css::uno::RuntimeException, std::exception)
{
    if( ( rIdentifier.getLength() == 16 ) && ( 0 == memcmp( ConstItemContainer::GetUnoTunnelId().getConstArray(), rIdentifier.getConstArray(), 16 ) ) )
    {
        return reinterpret_cast< sal_Int64 >( this );
    }
    return 0;
}

namespace
{
    class theConstItemContainerUnoTunnelId : public rtl::Static< UnoTunnelIdInit, theConstItemContainerUnoTunnelId > {};
}

const Sequence< sal_Int8 >& ConstItemContainer::GetUnoTunnelId() throw()
{
    return theConstItemContainerUnoTunnelId::get().getSeq();
}

ConstItemContainer* ConstItemContainer::GetImplementation( const css::uno::Reference< css::uno::XInterface >& rxIFace ) throw()
{
    css::uno::Reference< css::lang::XUnoTunnel > xUT( rxIFace, css::uno::UNO_QUERY );
    return xUT.is() ? reinterpret_cast< ConstItemContainer* >(sal::static_int_cast< sal_IntPtr >(
                          xUT->getSomething( ConstItemContainer::GetUnoTunnelId() ))) : nullptr;
}

// XElementAccess
sal_Bool SAL_CALL ConstItemContainer::hasElements()
throw ( RuntimeException, std::exception )
{
    return ( !m_aItemVector.empty() );
}

// XIndexAccess
sal_Int32 SAL_CALL ConstItemContainer::getCount()
throw ( RuntimeException, std::exception )
{
    return m_aItemVector.size();
}

Any SAL_CALL ConstItemContainer::getByIndex( sal_Int32 Index )
throw ( IndexOutOfBoundsException, WrappedTargetException, RuntimeException, std::exception )
{
    if ( sal_Int32( m_aItemVector.size()) > Index )
        return makeAny( m_aItemVector[Index] );
    else
        throw IndexOutOfBoundsException( OUString(), static_cast<OWeakObject *>(this) );
}

// XPropertySet
Reference< XPropertySetInfo > SAL_CALL ConstItemContainer::getPropertySetInfo()
throw (css::uno::RuntimeException, std::exception)
{
    // Optimize this method !
    // We initialize a static variable only one time. And we don't must use a mutex at every call!
    // For the first call; pInfo is NULL - for the second call pInfo is different from NULL!
    static Reference< XPropertySetInfo >* pInfo = nullptr;

    if( pInfo == nullptr )
    {
        // Ready for multithreading
        osl::MutexGuard aGuard( osl::Mutex::getGlobalMutex() );
        // Control this pointer again, another instance can be faster then these!
        if( pInfo == nullptr )
        {
            // Create structure of propertysetinfo for baseclass "OPropertySetHelper".
            // (Use method "getInfoHelper()".)
            static Reference< XPropertySetInfo > xInfo = new ::comphelper::PropertySetInfo(getInfoHelper().getProperties());
            pInfo = &xInfo;
        }
    }

    return (*pInfo);
}

void SAL_CALL ConstItemContainer::setPropertyValue( const OUString&, const Any& )
throw (css::beans::UnknownPropertyException, css::beans::PropertyVetoException, css::lang::IllegalArgumentException, css::lang::WrappedTargetException, css::uno::RuntimeException, std::exception)
{
}

Any SAL_CALL ConstItemContainer::getPropertyValue( const OUString& PropertyName )
throw (css::beans::UnknownPropertyException, css::lang::WrappedTargetException, css::uno::RuntimeException, std::exception)
{
    if ( PropertyName == PROPNAME_UINAME )
        return makeAny( m_aUIName );

    throw UnknownPropertyException();
}

void SAL_CALL ConstItemContainer::addPropertyChangeListener( const OUString&, const css::uno::Reference< css::beans::XPropertyChangeListener >& )
throw (css::beans::UnknownPropertyException, css::lang::WrappedTargetException, css::uno::RuntimeException, std::exception)
{
}

void SAL_CALL ConstItemContainer::removePropertyChangeListener( const OUString&, const css::uno::Reference< css::beans::XPropertyChangeListener >& )
throw (css::beans::UnknownPropertyException, css::lang::WrappedTargetException, css::uno::RuntimeException, std::exception)
{
    // Only read-only properties - do nothing
}

void SAL_CALL ConstItemContainer::addVetoableChangeListener( const OUString&, const css::uno::Reference< css::beans::XVetoableChangeListener >& )
throw (css::beans::UnknownPropertyException, css::lang::WrappedTargetException, css::uno::RuntimeException, std::exception)
{
    // Only read-only properties - do nothing
}

void SAL_CALL ConstItemContainer::removeVetoableChangeListener( const OUString&, const css::uno::Reference< css::beans::XVetoableChangeListener >& )
throw (css::beans::UnknownPropertyException, css::lang::WrappedTargetException, css::uno::RuntimeException, std::exception)
{
    // Only read-only properties - do nothing
}

// XFastPropertySet
void SAL_CALL ConstItemContainer::setFastPropertyValue( sal_Int32, const css::uno::Any& )
throw (css::beans::UnknownPropertyException, css::beans::PropertyVetoException, css::lang::IllegalArgumentException, css::lang::WrappedTargetException, css::uno::RuntimeException, std::exception)
{
}

Any SAL_CALL ConstItemContainer::getFastPropertyValue( sal_Int32 nHandle )
throw (css::beans::UnknownPropertyException, css::lang::WrappedTargetException, css::uno::RuntimeException, std::exception)
{
    if ( nHandle == PROPHANDLE_UINAME )
        return makeAny( m_aUIName );

    throw UnknownPropertyException();
}

::cppu::IPropertyArrayHelper& SAL_CALL ConstItemContainer::getInfoHelper()
{
    // Optimize this method !
    // We initialize a static variable only one time. And we don't must use a mutex at every call!
    // For the first call; pInfoHelper is NULL - for the second call pInfoHelper is different from NULL!
    static ::cppu::OPropertyArrayHelper* pInfoHelper = nullptr;

    if( pInfoHelper == nullptr )
    {
        // Ready for multithreading
        osl::MutexGuard aGuard( osl::Mutex::getGlobalMutex() );

        // Control this pointer again, another instance can be faster then these!
        if( pInfoHelper == nullptr )
        {
            // Define static member to give structure of properties to baseclass "OPropertySetHelper".
            // "impl_getStaticPropertyDescriptor" is a non exported and static function, who will define a static propertytable.
            // "sal_True" say: Table is sorted by name.
            static ::cppu::OPropertyArrayHelper aInfoHelper( impl_getStaticPropertyDescriptor(), true );
            pInfoHelper = &aInfoHelper;
        }
    }

    return(*pInfoHelper);
}

const css::uno::Sequence< css::beans::Property > ConstItemContainer::impl_getStaticPropertyDescriptor()
{
    // Create a property array to initialize sequence!
    // Table of all predefined properties of this class. Its used from OPropertySetHelper-class!
    // Don't forget to change the defines (see begin of this file), if you add, change or delete a property in this list!!!
    // It's necessary for methods of OPropertySetHelper.
    // ATTENTION:
    //      YOU MUST SORT FOLLOW TABLE BY NAME ALPHABETICAL !!!

    const css::beans::Property pProperties[] =
    {
        css::beans::Property( OUString(PROPNAME_UINAME), PROPHANDLE_UINAME ,
                                         cppu::UnoType<OUString>::get(),
                                         css::beans::PropertyAttribute::TRANSIENT | css::beans::PropertyAttribute::READONLY  )
    };
    // Use it to initialize sequence!
    const css::uno::Sequence< css::beans::Property > lPropertyDescriptor( pProperties, PROPCOUNT );
    // Return "PropertyDescriptor"
    return lPropertyDescriptor;
}

} // namespace framework

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