/* -*- 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 <comphelper/propertysetinfo.hxx>
#include <comphelper/propertysethelper.hxx>
#include <osl/diagnose.h>
#include <rtl/ref.hxx>

#include <memory>

using namespace ::comphelper;
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::lang;

namespace comphelper
{
class PropertySetHelperImpl
{
public:
    PropertyMapEntry const * find( const OUString& aName ) const throw();

    rtl::Reference<PropertySetInfo> mxInfo;
};
}

PropertyMapEntry const * PropertySetHelperImpl::find( const OUString& aName ) const throw()
{
    PropertyMap::const_iterator aIter = mxInfo->getPropertyMap().find( aName );

    if( mxInfo->getPropertyMap().end() != aIter )
    {
        return (*aIter).second;
    }
    else
    {
        return nullptr;
    }
}


PropertySetHelper::PropertySetHelper( rtl::Reference<comphelper::PropertySetInfo> const & xInfo ) throw()
    : mpImpl(new PropertySetHelperImpl)
{
    mpImpl->mxInfo = xInfo;
}

PropertySetHelper::~PropertySetHelper() throw()
{
}

// XPropertySet
Reference< XPropertySetInfo > SAL_CALL PropertySetHelper::getPropertySetInfo(  )
{
    return mpImpl->mxInfo.get();
}

void SAL_CALL PropertySetHelper::setPropertyValue( const OUString& aPropertyName, const Any& aValue )
{
    PropertyMapEntry const * aEntries[2];
    aEntries[0] = mpImpl->find( aPropertyName );

    if( nullptr == aEntries[0] )
        throw UnknownPropertyException( aPropertyName, static_cast< XPropertySet* >( this ) );

    aEntries[1] = nullptr;

    _setPropertyValues( aEntries, &aValue );
}

Any SAL_CALL PropertySetHelper::getPropertyValue( const OUString& PropertyName )
{
    PropertyMapEntry const * aEntries[2];
    aEntries[0] = mpImpl->find( PropertyName );

    if( nullptr == aEntries[0] )
        throw UnknownPropertyException( PropertyName, static_cast< XPropertySet* >( this ) );

    aEntries[1] = nullptr;

    Any aAny;
    _getPropertyValues( aEntries, &aAny );

    return aAny;
}

void SAL_CALL PropertySetHelper::addPropertyChangeListener( const OUString&, const Reference< XPropertyChangeListener >& )
{
    // todo
}

void SAL_CALL PropertySetHelper::removePropertyChangeListener( const OUString&, const Reference< XPropertyChangeListener >& )
{
    // todo
}

void SAL_CALL PropertySetHelper::addVetoableChangeListener( const OUString&, const Reference< XVetoableChangeListener >& )
{
    // todo
}

void SAL_CALL PropertySetHelper::removeVetoableChangeListener( const OUString&, const Reference< XVetoableChangeListener >& )
{
    // todo
}

// XMultiPropertySet
void SAL_CALL PropertySetHelper::setPropertyValues( const Sequence< OUString >& rPropertyNames, const Sequence< Any >& rValues )
{
    const sal_Int32 nCount = rPropertyNames.getLength();

    if( nCount != rValues.getLength() )
        throw IllegalArgumentException();

    if( !nCount )
        return;

    std::unique_ptr<PropertyMapEntry const *[]> pEntries(new PropertyMapEntry const *[nCount+1]);
    pEntries[nCount] = nullptr;
    const OUString* pNames = rPropertyNames.getConstArray();

    bool bUnknown = false;
    sal_Int32 n;
    for( n = 0; !bUnknown && ( n < nCount ); n++, pNames++ )
    {
        pEntries[n] = mpImpl->find( *pNames );
        bUnknown = nullptr == pEntries[n];
    }

    if( !bUnknown )
        _setPropertyValues( pEntries.get(), rValues.getConstArray() );

    if( bUnknown )
        throw RuntimeException( *pNames, static_cast< XPropertySet* >( this ) );
}

Sequence< Any > SAL_CALL PropertySetHelper::getPropertyValues(const Sequence< OUString >& rPropertyNames)
{
    const sal_Int32 nCount = rPropertyNames.getLength();

    Sequence< Any > aValues;
    if( nCount )
    {
        std::unique_ptr<PropertyMapEntry const *[]> pEntries(new PropertyMapEntry const *[nCount+1]);
        pEntries[nCount] = nullptr;
        const OUString* pNames = rPropertyNames.getConstArray();

        bool bUnknown = false;
        sal_Int32 n;
        for( n = 0; !bUnknown && ( n < nCount ); n++, pNames++ )
        {
            pEntries[n] = mpImpl->find( *pNames );
            bUnknown = nullptr == pEntries[n];
        }

        if( !bUnknown )
        {
            aValues.realloc(nCount);
            _getPropertyValues( pEntries.get(), aValues.getArray() );
        }

        if( bUnknown )
            throw RuntimeException( *pNames, static_cast< XPropertySet* >( this ) );
    }

    return aValues;
}

void SAL_CALL PropertySetHelper::addPropertiesChangeListener( const Sequence< OUString >&, const Reference< XPropertiesChangeListener >& )
{
    // todo
}

void SAL_CALL PropertySetHelper::removePropertiesChangeListener( const Reference< XPropertiesChangeListener >& )
{
    // todo
}

void SAL_CALL PropertySetHelper::firePropertiesChangeEvent( const Sequence< OUString >&, const Reference< XPropertiesChangeListener >& )
{
    // todo
}

// XPropertyState
PropertyState SAL_CALL PropertySetHelper::getPropertyState( const OUString& PropertyName )
{
    PropertyMapEntry const * aEntries[2];

    aEntries[0] = mpImpl->find( PropertyName );
    if( aEntries[0] == nullptr )
        throw UnknownPropertyException( PropertyName, static_cast< XPropertySet* >( this ) );

    aEntries[1] = nullptr;

    PropertyState aState(PropertyState_AMBIGUOUS_VALUE);
    _getPropertyStates( aEntries, &aState );

    return aState;
}

Sequence< PropertyState > SAL_CALL PropertySetHelper::getPropertyStates( const Sequence< OUString >& aPropertyName )
{
    const sal_Int32 nCount = aPropertyName.getLength();

    Sequence< PropertyState > aStates( nCount );

    if( nCount )
    {
        const OUString* pNames = aPropertyName.getConstArray();

        bool bUnknown = false;

        std::unique_ptr<PropertyMapEntry const *[]> pEntries(new PropertyMapEntry const *[nCount+1]);

        sal_Int32 n;
        for( n = 0; !bUnknown && (n < nCount); n++, pNames++ )
        {
            pEntries[n] = mpImpl->find( *pNames );
            bUnknown = nullptr == pEntries[n];
        }

        pEntries[nCount] = nullptr;

        if( !bUnknown )
            _getPropertyStates( pEntries.get(), aStates.getArray() );

        if( bUnknown )
            throw UnknownPropertyException( *pNames, static_cast< XPropertySet* >( this ) );
    }

    return aStates;
}

void SAL_CALL PropertySetHelper::setPropertyToDefault( const OUString& PropertyName )
{
    PropertyMapEntry const *pEntry  = mpImpl->find( PropertyName );
    if( nullptr == pEntry )
        throw UnknownPropertyException( PropertyName, static_cast< XPropertySet* >( this ) );

    _setPropertyToDefault( pEntry );
}

Any SAL_CALL PropertySetHelper::getPropertyDefault( const OUString& aPropertyName )
{
    PropertyMapEntry const * pEntry = mpImpl->find( aPropertyName );
    if( nullptr == pEntry )
        throw UnknownPropertyException( aPropertyName, static_cast< XPropertySet* >( this ) );

    return _getPropertyDefault( pEntry );
}

void PropertySetHelper::_getPropertyStates(
        const comphelper::PropertyMapEntry**, PropertyState*)
{
    OSL_FAIL( "you have to implement this yourself!");
}

void
PropertySetHelper::_setPropertyToDefault(const comphelper::PropertyMapEntry*)
{
    OSL_FAIL( "you have to implement this yourself!");
}

Any PropertySetHelper::_getPropertyDefault(const comphelper::PropertyMapEntry*)
{
    OSL_FAIL( "you have to implement this yourself!");

    Any aAny;
    return aAny;
}

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