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#include <com/sun/star/awt/XControl.hpp>
#include <com/sun/star/awt/XControlContainer.hpp>
#include <com/sun/star/container/XNameContainer.hpp>
#include <com/sun/star/script/XInvocation.hpp>
#include <com/sun/star/lang/WrappedTargetException.hpp>

#include "vbacontrols.hxx"
#include <cppuhelper/implbase2.hxx>
#include <ooo/vba//XControlProvider.hpp>
#include <boost/unordered_map.hpp>

using namespace com::sun::star;
using namespace ooo::vba;


typedef ::cppu::WeakImplHelper2< container::XNameAccess, container::XIndexAccess > ArrayWrapImpl;

typedef  boost::unordered_map< rtl::OUString, sal_Int32, ::rtl::OUStringHash,
    ::std::equal_to< ::rtl::OUString >  > ControlIndexMap;
typedef  std::vector< uno::Reference< awt::XControl > > ControlVec;

class ControlArrayWrapper : public ArrayWrapImpl
{
    uno::Reference< awt::XControlContainer > mxDialog;
    uno::Sequence< ::rtl::OUString > msNames;
    ControlVec mControls;
    ControlIndexMap mIndices;

private:
    void SetArrayElementTo( const uno::Reference< awt::XControl >& xCtrl, sal_Int32 nIndex = -1 )
    {
        // initialize the element with specified index to the control
        if ( xCtrl.is() )
        {
            if ( nIndex == -1 )
                nIndex = msNames.getLength();

            if ( nIndex >= msNames.getLength() )
                msNames.realloc( nIndex );

            msNames[ nIndex ] = getControlName( xCtrl );
            mControls.push_back( xCtrl );
            mIndices[ msNames[ nIndex ] ] = nIndex;
        }
    }
    void getNestedControls( ControlVec& vControls, uno::Reference< awt::XControlContainer >& xContainer )
    {
        uno::Sequence< uno::Reference< awt::XControl > > aControls = xContainer->getControls();
        const uno::Reference< awt::XControl >* pCtrl = aControls.getConstArray();
        const uno::Reference< awt::XControl >* pCtrlsEnd = pCtrl + aControls.getLength();
        for ( ; pCtrl < pCtrlsEnd; ++pCtrl )
        {
            uno::Reference< awt::XControlContainer > xC( *pCtrl, uno::UNO_QUERY );
            vControls.push_back( *pCtrl );
            if ( xC.is() )
                getNestedControls( vControls, xC );
        }
    }
public:
    ControlArrayWrapper( const uno::Reference< awt::XControl >& xDialog )
    {
        try
        {
            mxDialog.set( xDialog, uno::UNO_QUERY_THROW );
            uno::Sequence< uno::Reference< awt::XControl > > sXControls = mxDialog->getControls();

            msNames.realloc( sXControls.getLength() );
            for ( sal_Int32 i = 0; i < sXControls.getLength(); ++i )
                SetArrayElementTo( sXControls[ i ], i );
        }
        catch( uno::Exception& )
        {
            // accept the case when the dialog already does not exist
            // in this case the wrapper should work in dummy mode
        }
    }

    static rtl::OUString getControlName( const uno::Reference< awt::XControl >& xCtrl )
    {
        if ( !xCtrl.is() )
            throw uno::RuntimeException();

        uno::Reference< beans::XPropertySet > xProp( xCtrl->getModel(), uno::UNO_QUERY_THROW );
        rtl::OUString sName;
        xProp->getPropertyValue( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Name" ) ) ) >>= sName;
        return sName;
    }


    // XElementAccess
    virtual uno::Type SAL_CALL getElementType(  ) throw (uno::RuntimeException)
    {
        return awt::XControl::static_type(0);
    }

    virtual ::sal_Bool SAL_CALL hasElements(  ) throw (uno::RuntimeException)
    {
        return ( mControls.size() > 0 );
    }

    // XNameAcess
    virtual uno::Any SAL_CALL getByName( const ::rtl::OUString& aName ) throw (container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException)
    {
        if ( !hasByName( aName ) )
            throw container::NoSuchElementException();
        return getByIndex( mIndices[ aName ] );
    }

    virtual uno::Sequence< ::rtl::OUString > SAL_CALL getElementNames(  ) throw (uno::RuntimeException)
    {
        return msNames;
    }

    virtual ::sal_Bool SAL_CALL hasByName( const ::rtl::OUString& aName ) throw (css::uno::RuntimeException)
    {
        ControlIndexMap::iterator it = mIndices.find( aName );
        return it != mIndices.end();
    }

    // XElementAccess
    virtual ::sal_Int32 SAL_CALL getCount(  ) throw (css::uno::RuntimeException)
    {
        return mControls.size();
    }

    virtual uno::Any SAL_CALL getByIndex( ::sal_Int32 Index ) throw (lang::IndexOutOfBoundsException, lang::WrappedTargetException, uno::RuntimeException )
    {
        if ( Index < 0 || Index >= static_cast< sal_Int32 >( mControls.size() ) )
            throw lang::IndexOutOfBoundsException();
        return uno::makeAny( mControls[ Index ] );
    }
};


class ControlsEnumWrapper : public EnumerationHelper_BASE
{
    uno::Reference<XHelperInterface > m_xParent;
    uno::Reference<uno::XComponentContext > m_xContext;
    uno::Reference<container::XIndexAccess > m_xIndexAccess;
    uno::Reference<awt::XControl > m_xDlg;
    sal_Int32 nIndex;

public:

    ControlsEnumWrapper(  const uno::Reference< XHelperInterface >& xParent, const uno::Reference< uno::XComponentContext >& xContext, const uno::Reference< container::XIndexAccess >& xIndexAccess, const uno::Reference< awt::XControl >& xDlg ) :  m_xParent( xParent ), m_xContext( xContext), m_xIndexAccess( xIndexAccess ), m_xDlg( xDlg ), nIndex( 0 ) {}

    virtual ::sal_Bool SAL_CALL hasMoreElements(  ) throw (uno::RuntimeException)
    {
        return ( nIndex < m_xIndexAccess->getCount() );
    }

    virtual uno::Any SAL_CALL nextElement(  ) throw (container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException)
    {
        if ( nIndex < m_xIndexAccess->getCount() )
        {
            uno::Reference< frame::XModel > xModel;
            uno::Reference< awt::XControl > xControl;
            m_xIndexAccess->getByIndex( nIndex++ ) >>= xControl;

    uno::Reference<lang::XMultiComponentFactory > xServiceManager( m_xContext->getServiceManager(), uno::UNO_QUERY_THROW );
    uno::Reference< XControlProvider > xControlProvider( xServiceManager->createInstanceWithContext( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ooo.vba.ControlProvider" ) ), m_xContext ), uno::UNO_QUERY_THROW );

    uno::Reference< msforms::XControl > xVBAControl( xControlProvider->createUserformControl(  xControl, m_xDlg, xModel ) );
            return uno::makeAny( xVBAControl );
        }
        throw container::NoSuchElementException();
    }

};


uno::Reference<container::XIndexAccess >
lcl_controlsWrapper( const uno::Reference< awt::XControl >& xDlg )
{
    return new ControlArrayWrapper( xDlg );
}

ScVbaControls::ScVbaControls( const uno::Reference< XHelperInterface >& xParent, const uno::Reference< uno::XComponentContext >& xContext,
                const css::uno::Reference< awt::XControl >& xDialog )
            : ControlsImpl_BASE( xParent, xContext, lcl_controlsWrapper( xDialog  ) )
{
    mxDialog.set( xDialog, uno::UNO_QUERY );
}

uno::Reference< container::XEnumeration >
ScVbaControls::createEnumeration() throw (uno::RuntimeException)
{
    uno::Reference< container::XEnumeration > xEnum( new ControlsEnumWrapper( mxParent, mxContext, m_xIndexAccess, mxDialog ) );
    if ( !xEnum.is() )
        throw uno::RuntimeException();
    return xEnum;
}

uno::Any
ScVbaControls::createCollectionObject( const css::uno::Any& aSource )
{
    // Create control from awt::XControl
    uno::Reference< awt::XControl > xControl;
    aSource >>= xControl;
    uno::Reference< frame::XModel > xModel;
    uno::Reference<lang::XMultiComponentFactory > xServiceManager( mxContext->getServiceManager(), uno::UNO_QUERY_THROW );
    uno::Reference< XControlProvider > xControlProvider( xServiceManager->createInstanceWithContext( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ooo.vba.ControlProvider" ) ), mxContext ), uno::UNO_QUERY_THROW );

    uno::Reference< msforms::XControl > xVBAControl( xControlProvider->createUserformControl(  xControl, mxDialog, xModel ) );

    return uno::makeAny( xVBAControl );
}

void SAL_CALL
ScVbaControls::Move( double cx, double cy ) throw (uno::RuntimeException)
{
    uno::Reference< container::XEnumeration > xEnum( createEnumeration() );
    while ( xEnum->hasMoreElements() )
    {
        uno::Reference< msforms::XControl > xControl( xEnum->nextElement(), uno::UNO_QUERY_THROW );
        xControl->setLeft( xControl->getLeft() + cx );
        xControl->setTop( xControl->getTop() + cy );
    }
}

uno::Any SAL_CALL ScVbaControls::Add( const uno::Any& Object, const uno::Any& StringKey, const uno::Any& /*Before*/, const uno::Any& /*After*/ )
    throw (uno::RuntimeException)
{
    uno::Any aResult;
    ::rtl::OUString aComServiceName;

    try
    {
        if ( !mxDialog.is() )
            throw uno::RuntimeException();

        uno::Reference< awt::XControl > xNewControl;
        uno::Reference< lang::XMultiServiceFactory > xModelFactory( mxDialog->getModel(), uno::UNO_QUERY_THROW );

        uno::Reference< container::XNameContainer > xDialogContainer( xModelFactory, uno::UNO_QUERY_THROW );

        Object >>= aComServiceName;

        // TODO: Support Before and After?
        ::rtl::OUString aNewName;
        StringKey >>= aNewName;
        if ( !aNewName.getLength() )
        {
            aNewName = aComServiceName;
            if ( !aNewName.getLength() )
                aNewName = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Control" ) );

            sal_Int32 nInd = 0;
            while( xDialogContainer->hasByName( aNewName ) && nInd < SAL_MAX_INT32 )
            {
                aNewName = aComServiceName;
                aNewName += ::rtl::OUString::valueOf( nInd );
            }
        }

        if ( aComServiceName.getLength() )
        {
            uno::Reference< awt::XControlModel > xNewModel( xModelFactory->createInstance( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.custom.awt.UnoControlSystemAXContainerModel" ) ) ), uno::UNO_QUERY_THROW );


            xDialogContainer->insertByName( aNewName, uno::makeAny( xNewModel ) );
            uno::Reference< awt::XControlContainer > xControlContainer( mxDialog, uno::UNO_QUERY_THROW );
            xNewControl = xControlContainer->getControl( aNewName );

            try
            {
                uno::Reference< script::XInvocation > xControlInvoke( xNewControl, uno::UNO_QUERY_THROW );

                uno::Sequence< uno::Any > aArgs( 1 );
                aArgs[0] <<= aComServiceName;
                uno::Sequence< sal_Int16 > aOutIDDummy;
                uno::Sequence< uno::Any > aOutDummy;
                xControlInvoke->invoke( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "SOAddAXControl" ) ), aArgs, aOutIDDummy, aOutDummy );
            }
            catch( uno::Exception& )
            {
                xDialogContainer->removeByName( aNewName );
                throw;
            }
        }

        if ( xNewControl.is() )
        {
            UpdateCollectionIndex( lcl_controlsWrapper( mxDialog  ) );
            aResult <<= xNewControl;
            aResult = createCollectionObject( aResult );
        }
        else
            throw uno::RuntimeException();
    }
    catch( uno::RuntimeException& )
    {
        throw;
    }
    catch( uno::Exception& e )
    {
        throw lang::WrappedTargetException( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Can not create AXControl!" ) ),
                uno::Reference< uno::XInterface >(),
                uno::makeAny( e ) );
    }

    return aResult;
}

void SAL_CALL ScVbaControls::Remove( const uno::Any& StringKeyOrIndex )
    throw (uno::RuntimeException)
{
    ::rtl::OUString aControlName;
    sal_Int32 nIndex = -1;

    try
    {
        if ( !mxDialog.is() )
            throw uno::RuntimeException();

        uno::Reference< lang::XMultiServiceFactory > xModelFactory( mxDialog->getModel(), uno::UNO_QUERY_THROW );
        uno::Reference< container::XNameContainer > xDialogContainer( xModelFactory, uno::UNO_QUERY_THROW );

        if ( !( ( StringKeyOrIndex >>= aControlName ) && aControlName.getLength() )
          && !( ( StringKeyOrIndex >>= nIndex ) && nIndex >= 0 && nIndex < m_xIndexAccess->getCount() ) )
            throw uno::RuntimeException();

        uno::Reference< awt::XControl > xControl;
        if ( aControlName.getLength() )
        {
            uno::Reference< awt::XControlContainer > xControlContainer( mxDialog, uno::UNO_QUERY_THROW );
            xControl = xControlContainer->getControl( aControlName );
        }
        else
        {
            m_xIndexAccess->getByIndex( nIndex ) >>= xControl;
        }

        if ( !xControl.is() )
            throw uno::RuntimeException();

        if ( !aControlName.getLength() )
            aControlName = ControlArrayWrapper::getControlName( xControl );

        xDialogContainer->removeByName( aControlName );
        xControl->dispose();
    }
    catch( uno::RuntimeException& )
    {
        // the exceptions are not rethrown, impossibility to find or remove the control is currently not reported
        // since in most cases it means just that the controls is already not there, the VBA seems to do it in the same way

        // throw;
    }
    catch( uno::Exception& e )
    {
        // throw lang::WrappedTargetException( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Can not create AXControl!" ) ),
        //         uno::Reference< uno::XInterface >(),
        //         uno::makeAny( e ) );
    }
}


uno::Type
ScVbaControls::getElementType() throw (uno::RuntimeException)
{
    return ooo::vba::msforms::XControl::static_type(0);
}
rtl::OUString&
ScVbaControls::getServiceImplName()
{
    static rtl::OUString sImplName( RTL_CONSTASCII_USTRINGPARAM("ScVbaControls") );
    return sImplName;
}

uno::Sequence< rtl::OUString >
ScVbaControls::getServiceNames()
{
    static uno::Sequence< rtl::OUString > aServiceNames;
    if ( aServiceNames.getLength() == 0 )
    {
        aServiceNames.realloc( 1 );
        aServiceNames[ 0 ] = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("ooo.vba.excel.Controls" ) );
    }
    return aServiceNames;
}

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