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#include <comphelper/processfactory.hxx>

#include <cppuhelper/implbase1.hxx>
#include <cppuhelper/implbase3.hxx>

#include <com/sun/star/frame/XDesktop.hpp>
#include <com/sun/star/sheet/XSpreadsheetDocument.hpp>
#include <com/sun/star/container/XEnumerationAccess.hpp>
#include <com/sun/star/frame/XComponentLoader.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/frame/XFrame.hpp>
#include <com/sun/star/frame/FrameSearchFlag.hpp>
#include <com/sun/star/util/XModifiable.hpp>
#include <com/sun/star/frame/XStorable.hpp>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/beans/PropertyVetoException.hpp>
#include <com/sun/star/util/XCloseable.hpp>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <com/sun/star/document/XTypeDetection.hpp>
#include <com/sun/star/uri/XUriReference.hpp>
#include <com/sun/star/uri/XUriReferenceFactory.hpp>
#include <com/sun/star/script/vba/VBAEventId.hpp>
#include <com/sun/star/script/vba/XVBACompatibility.hpp>
#include <com/sun/star/script/vba/XVBAEventProcessor.hpp>
#include <com/sun/star/script/vba/XVBAModuleInfo.hpp>
#include <com/sun/star/script/ModuleInfo.hpp>
#include <com/sun/star/script/ModuleType.hpp>

#include <sfx2/objsh.hxx>
#include <tools/urlobj.hxx>

#include "vbaglobals.hxx"
#include "vbaworkbook.hxx"
#include "vbaworkbooks.hxx"
#include <vbahelper/vbahelper.hxx>

#include <hash_map>
#include <vector>
#include <osl/file.hxx>
using namespace ::ooo::vba;
using namespace ::com::sun::star;

const sal_Int16 CUSTOM_CHAR = 5;

void setUpDocumentModules( const uno::Reference< sheet::XSpreadsheetDocument >& xDoc )
{
    uno::Reference< frame::XModel > xModel( xDoc, uno::UNO_QUERY );
    ScDocShell* pShell = excel::getDocShell( xModel );
    if ( pShell )
    {
        String aPrjName( RTL_CONSTASCII_USTRINGPARAM( "Standard" ) );
        pShell->GetBasicManager()->SetName( aPrjName );

        /*  Set library container to VBA compatibility mode. This will create
            the VBA Globals object and store it in the Basic manager of the
            document. */
        uno::Reference<script::XLibraryContainer> xLibContainer = pShell->GetBasicContainer();
        uno::Reference<script::vba::XVBACompatibility> xVBACompat( xLibContainer, uno::UNO_QUERY_THROW );
        xVBACompat->setVBACompatibilityMode( sal_True );

        if( xLibContainer.is() )
        {
            if( !xLibContainer->hasByName( aPrjName ) )
                xLibContainer->createLibrary( aPrjName );    
            uno::Any aLibAny = xLibContainer->getByName( aPrjName );
            uno::Reference< container::XNameContainer > xLib;
            aLibAny >>= xLib;
            if( xLib.is()  )
            {           
                uno::Reference< script::vba::XVBAModuleInfo > xVBAModuleInfo( xLib, uno::UNO_QUERY_THROW );
                uno::Reference< lang::XMultiServiceFactory> xSF( pShell->GetModel(), uno::UNO_QUERY_THROW);
                uno::Reference< container::XNameAccess > xVBACodeNamedObjectAccess( xSF->createInstance( rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( "ooo.vba.VBAObjectModuleObjectProvider"))), uno::UNO_QUERY_THROW );
                // set up the module info for the workbook and sheets in the nealy created
                // spreadsheet
                ScDocument* pDoc = pShell->GetDocument();
                String sCodeName = pDoc->GetCodeName();
                if ( sCodeName.Len() == 0 )
                {
                    sCodeName = String( RTL_CONSTASCII_USTRINGPARAM("ThisWorkbook") );
                    pDoc->SetCodeName( sCodeName );
                }

                std::vector< rtl::OUString > sDocModuleNames;
                sDocModuleNames.push_back( sCodeName );

                uno::Reference<container::XNameAccess > xSheets( xDoc->getSheets(), uno::UNO_QUERY_THROW );
                uno::Sequence< rtl::OUString > sSheets( xSheets->getElementNames() );

                for ( sal_Int32 index=0; index < sSheets.getLength() ; ++index )
                {
                    sDocModuleNames.push_back( sSheets[ index ] );
                }

                std::vector<rtl::OUString>::iterator it_end = sDocModuleNames.end();

                for ( std::vector<rtl::OUString>::iterator it = sDocModuleNames.begin(); it != it_end; ++it )
                {
                    script::ModuleInfo sModuleInfo;
    
                    sModuleInfo.ModuleObject.set( xVBACodeNamedObjectAccess->getByName( *it ), uno::UNO_QUERY );
                    sModuleInfo.ModuleType = script::ModuleType::DOCUMENT;
                    xVBAModuleInfo->insertModuleInfo( *it, sModuleInfo );
                    if( xLib->hasByName( *it ) )
                        xLib->replaceByName( *it, uno::makeAny( rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( "Option VBASupport 1\n") ) ) );
                    else
                        xLib->insertByName( *it, uno::makeAny( rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( "Option VBASupport 1\n" ) ) ) );
                }
            }
        }
    }
}

static uno::Any
getWorkbook( uno::Reference< uno::XComponentContext >& xContext, const uno::Reference< sheet::XSpreadsheetDocument > &xDoc, const uno::Reference< XHelperInterface >& xParent )
{
	// FIXME: fine as long as ScVbaWorkbook is stateless ...
	uno::Reference< frame::XModel > xModel( xDoc, uno::UNO_QUERY );
	if( !xModel.is() )
		return uno::Any();
	
	uno::Reference< excel::XWorkbook > xWb( getVBADocument( xModel ), uno::UNO_QUERY );
    if ( xWb.is() )
    {
        OSL_TRACE(" *** Returning Module uno Object *** ");
        return uno::Any( xWb );
    }

	ScVbaWorkbook *pWb = new ScVbaWorkbook( xParent, xContext, xModel );
	return uno::Any( uno::Reference< excel::XWorkbook > (pWb) );
}

class WorkBookEnumImpl : public EnumerationHelperImpl
{
	uno::Any m_aApplication;
public:
	WorkBookEnumImpl( const uno::Reference< XHelperInterface >& xParent, const uno::Reference< uno::XComponentContext >& xContext, const uno::Reference< container::XEnumeration >& xEnumeration, const uno::Any& aApplication ) throw ( uno::RuntimeException ) : EnumerationHelperImpl( xParent, xContext, xEnumeration ), m_aApplication( aApplication ) {}

	virtual uno::Any SAL_CALL nextElement(  ) throw (container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException) 
	{ 
		uno::Reference< sheet::XSpreadsheetDocument > xDoc( m_xEnumeration->nextElement(), uno::UNO_QUERY_THROW );
		return getWorkbook( m_xContext, xDoc, m_xParent );
	}

};

ScVbaWorkbooks::ScVbaWorkbooks( const uno::Reference< XHelperInterface >& xParent, const uno::Reference< css::uno::XComponentContext >& xContext ) : ScVbaWorkbooks_BASE( xParent, xContext, VbaDocumentsBase::EXCEL_DOCUMENT )
{
}
// XEnumerationAccess
uno::Type
ScVbaWorkbooks::getElementType() throw (uno::RuntimeException)
{
	return excel::XWorkbook::static_type(0);
}
uno::Reference< container::XEnumeration >
ScVbaWorkbooks::createEnumeration() throw (uno::RuntimeException)
{
	// #FIXME its possible the WorkBookEnumImpl here doens't reflect
	// the state of this object ( although it should ) would be 
	// safer to create an enumeration based on this objects state
	// rather than one effectively based of the desktop component
    uno::Reference< container::XEnumerationAccess > xEnumerationAccess( m_xIndexAccess, uno::UNO_QUERY_THROW );
	return new WorkBookEnumImpl( mxParent, mxContext, xEnumerationAccess->createEnumeration(), Application() );
}

uno::Any
ScVbaWorkbooks::createCollectionObject( const css::uno::Any& aSource )
{
	uno::Reference< sheet::XSpreadsheetDocument > xDoc( aSource, uno::UNO_QUERY_THROW );
	return getWorkbook( mxContext, xDoc, mxParent );
}


uno::Any SAL_CALL
ScVbaWorkbooks::Add( const uno::Any& Template ) throw (uno::RuntimeException)
{
    uno::Reference< sheet::XSpreadsheetDocument > xSpreadDoc;
    sal_Int32 nWorkbookType = 0;
    ::rtl::OUString aTemplateFileName;
    if( Template >>= nWorkbookType )
    {
        // nWorkbookType is a constant from XlWBATemplate (added in Excel 2007)
        // TODO: create chart-sheet if supported by Calc

        xSpreadDoc.set( createDocument(), uno::UNO_QUERY_THROW );
        // create a document with one sheet only
        uno::Reference< sheet::XSpreadsheets > xSheets( xSpreadDoc->getSheets(), uno::UNO_SET_THROW );
        uno::Reference< container::XIndexAccess > xSheetsIA( xSheets, uno::UNO_QUERY_THROW );
        while( xSheetsIA->getCount() > 1 )
        {
            uno::Reference< container::XNamed > xSheetName( xSheetsIA->getByIndex( xSheetsIA->getCount() - 1 ), uno::UNO_QUERY_THROW );
            xSheets->removeByName( xSheetName->getName() );
        }
    }
    else if( Template >>= aTemplateFileName )
    {
        // TODO: create document from template
        xSpreadDoc.set( createDocument(), uno::UNO_QUERY_THROW );
    }
    else if( !Template.hasValue() )
    {
        // regular spreadsheet document with configured number of sheets
        xSpreadDoc.set( createDocument(), uno::UNO_QUERY_THROW );
    }
    else
    {
        // illegal argument
        throw uno::RuntimeException();
    }

    // need to set up the document modules ( and vba mode ) here                                
    setUpDocumentModules( xSpreadDoc );
    if( xSpreadDoc.is() )
        return getWorkbook( mxContext, xSpreadDoc, mxParent );
    return uno::Any();
}

void SAL_CALL
ScVbaWorkbooks::Close() throw (uno::RuntimeException)
{
    closeDocuments();
}

bool
ScVbaWorkbooks::isTextFile( const rtl::OUString& sType )
{
	// will return true if the file is
	// a) a variant of a text file
	// b) a csv file
	// c) unknown 
	// returning true basically means treat this like a csv file
	const static rtl::OUString txtType( RTL_CONSTASCII_USTRINGPARAM("writer_Text" ) );
	const static rtl::OUString csvType( RTL_CONSTASCII_USTRINGPARAM("calc_Text_txt_csv_StarCalc" ) );
	const static rtl::OUString encodedTxtType( RTL_CONSTASCII_USTRINGPARAM("writer_Text_encoded" ) );
	return sType.equals( txtType ) || sType.equals( csvType ) || ( sType.getLength() == 0 ) || sType.equals( encodedTxtType );
}

bool 
ScVbaWorkbooks::isSpreadSheetFile( const rtl::OUString& sType )
{
	// include calc_QPro etc. ? ( not for the moment anyway )
	if ( sType.indexOf( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("calc_MS"))) == 0 
	|| sType.indexOf( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("calc8"))) == 0 
	|| sType.indexOf( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("calc_StarOffice"))) == 0 )
		return true;
	return false;
}

rtl::OUString 
ScVbaWorkbooks::getFileFilterType( const rtl::OUString& rFileName )
{
	uno::Reference< document::XTypeDetection > xTypeDetect( mxContext->getServiceManager()->createInstanceWithContext(::rtl::OUString::createFromAscii("com.sun.star.document.TypeDetection"), mxContext), uno::UNO_QUERY_THROW );
	uno::Sequence< beans::PropertyValue > aMediaDesc(1);
	aMediaDesc[ 0 ].Name = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ("URL" ) );
	aMediaDesc[ 0 ].Value <<= rFileName;
	rtl::OUString sType = xTypeDetect->queryTypeByDescriptor( aMediaDesc, sal_True );
	return sType;
}

// #TODO# #FIXME# can any of the unused params below be used?
uno::Any SAL_CALL
ScVbaWorkbooks::Open( const rtl::OUString& rFileName, const uno::Any& /*UpdateLinks*/, const uno::Any& ReadOnly, const uno::Any& Format, const uno::Any& /*Password*/, const uno::Any& /*WriteResPassword*/, const uno::Any& /*IgnoreReadOnlyRecommended*/, const uno::Any& /*Origin*/, const uno::Any& Delimiter, const uno::Any& /*Editable*/, const uno::Any& /*Notify*/, const uno::Any& /*Converter*/, const uno::Any& /*AddToMru*/ ) throw (uno::RuntimeException)
{
	// we need to detect if this is a URL, if not then assume its a file path
    rtl::OUString aURL;
    INetURLObject aObj;
	aObj.SetURL( rFileName );
	bool bIsURL = aObj.GetProtocol() != INET_PROT_NOT_VALID;
	if ( bIsURL )
		aURL = rFileName;
	else
		osl::FileBase::getFileURLFromSystemPath( rFileName, aURL );

	uno::Sequence< beans::PropertyValue > sProps(0);
	sal_Int32 nIndex = 0;
	
	rtl::OUString sType = getFileFilterType( aURL );
	// A text file means it needs to be processed as a csv file	
	if ( isTextFile( sType ) ) 
	{
		// Values for format
		// 1 Tabs
		// 2 Commas
		// 3 Spaces
		// 4 Semicolons
		// 5 Nothing
		// 6 Custom character (see the Delimiter argument
		// no format means use the current delimiter
		sProps.realloc( 3 );
		sProps[ nIndex ].Name = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("FilterOptions" ) );
		sal_Int16 delims[] = { 0 /*default not used*/, 9/*tab*/, 44/*comma*/, 32/*space*/, 59/*semicolon*/ };	
		static rtl::OUString sRestOfFormat( RTL_CONSTASCII_USTRINGPARAM(",34,0,1" ) );
		
		rtl::OUString sFormat;
		sal_Int16 nFormat = 0; // default indicator


		if ( Format.hasValue() )
		{
			Format >>= nFormat; // val of nFormat overwritten if extracted	
			// validate param	
			if ( nFormat < 1 || nFormat > 6 )
				throw uno::RuntimeException( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Illegal value for Format" ) ), uno::Reference< uno::XInterface >() );
		}

		sal_Int16 nDelim = getCurrentDelim();

		if (  nFormat > 0 && nFormat < CUSTOM_CHAR ) 
		{
			nDelim =  delims[ nFormat ];
		}
		else if ( nFormat > CUSTOM_CHAR )
		{
			// Need to check Delimiter param
			if ( !Delimiter.hasValue() )
				throw uno::RuntimeException( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Expected value for Delimiter" ) ), uno::Reference< uno::XInterface >() );
			rtl::OUString sStr;
			Delimiter >>= sStr;
			String aUniStr( sStr );
			if ( aUniStr.Len() )
				nDelim = aUniStr.GetChar(0);
			else
				throw uno::RuntimeException( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Incorrect value for Delimiter" ) ), uno::Reference< uno::XInterface >() );
		}

		getCurrentDelim() = nDelim; //set new current

		sFormat = rtl::OUString::valueOf( (sal_Int32)nDelim ) + sRestOfFormat;
		sProps[ nIndex++ ].Value <<= sFormat;
		sProps[ nIndex ].Name = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("FilterName") );
		sProps[ nIndex++ ].Value <<= rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("Text - txt - csv (StarCalc)") );
		// Ensure WORKAROUND_CSV_TXT_BUG_i60158 gets called in typedetection.cxx so
		// csv is forced for deep detected 'writerxxx' types
		sProps[ nIndex ].Name = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("DocumentService") );
		sProps[ nIndex ].Value <<= rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.sheet.SpreadsheetDocument") );
	}
	else if ( !isSpreadSheetFile( sType ) )
		throw uno::RuntimeException( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("Bad Format")), uno::Reference< uno::XInterface >() );
	
	uno::Reference <sheet::XSpreadsheetDocument> xSpreadDoc( openDocument( rFileName, ReadOnly, sProps ), uno::UNO_QUERY_THROW );
	uno::Any aRet = getWorkbook( mxContext, xSpreadDoc, mxParent );
	uno::Reference< excel::XWorkbook > xWBook( aRet, uno::UNO_QUERY );
	if ( xWBook.is() )
		xWBook->Activate();
	return aRet;
}

rtl::OUString&
ScVbaWorkbooks::getServiceImplName()
{
	static rtl::OUString sImplName( RTL_CONSTASCII_USTRINGPARAM("ScVbaWorkbooks") );
	return sImplName;
}

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