/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
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 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_filter.hxx"
#include <iostream>
#include <stdlib.h>
#include <ctype.h>
#include <stdio.h>
#include "filterdetect.hxx"
#include <osl/diagnose.h>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/io/XActiveDataSource.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/xml/sax/XDocumentHandler.hpp>
#include <com/sun/star/xml/sax/InputSource.hpp>
#include <com/sun/star/xml/sax/XParser.hpp>
#include <com/sun/star/xml/XImportFilter.hpp>
#include <com/sun/star/xml/XExportFilter.hpp>
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/frame/XController.hpp>
#include <com/sun/star/task/XStatusIndicator.hpp>
#include <com/sun/star/task/XStatusIndicatorFactory.hpp>
#include <com/sun/star/style/XStyleFamiliesSupplier.hpp>
#include <com/sun/star/style/XStyleLoader.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/document/XExtendedFilterDetection.hpp>
#include <com/sun/star/container/XNameAccess.hpp>
#include <com/sun/star/beans/PropertyState.hpp>

#include <ucbhelper/content.hxx>
#include <ucbhelper/contentbroker.hxx>
#include <ucbhelper/commandenvironment.hxx>
#include <unotools/ucbhelper.hxx>
#include <com/sun/star/ucb/XCommandEnvironment.hpp>

//UOF v2 deep type detection
#include "../xsltfilter/uof2storage.cxx"
#include <rtl/string.hxx>


using rtl::OUString;
using com::sun::star::uno::Sequence;
using com::sun::star::uno::Reference;
using com::sun::star::uno::Any;
using com::sun::star::uno::UNO_QUERY;
using com::sun::star::uno::XInterface;
using com::sun::star::uno::Exception;
using com::sun::star::uno::RuntimeException;
using com::sun::star::lang::XMultiServiceFactory;
using com::sun::star::io::XActiveDataSource;
using com::sun::star::io::XOutputStream;
using com::sun::star::beans::PropertyValue;
using com::sun::star::document::XExporter;
using com::sun::star::document::XFilter;
using com::sun::star::document::XExtendedFilterDetection;

using com::sun::star::io::XInputStream;
using com::sun::star::document::XImporter;
using com::sun::star::xml::sax::InputSource;
using com::sun::star::xml::sax::XDocumentHandler;
using com::sun::star::xml::sax::XParser;
using com::sun::star::task::XInteractionHandler;

using namespace ::com::sun::star::frame;
using namespace ::com::sun::star;
using namespace com::sun::star::container;
using namespace com::sun::star::uno;
using namespace com::sun::star::beans;


Reference< com::sun::star::frame::XModel > xModel;

::rtl::OUString SAL_CALL supportedByType( const ::rtl::OUString  clipBoardFormat ,  const ::rtl::OString resultString, const ::rtl::OUString checkType);


::rtl::OUString SAL_CALL FilterDetect::detect( com::sun::star::uno::Sequence< com::sun::star::beans::PropertyValue >& aArguments ) throw( com::sun::star::uno::RuntimeException )
{
        ::rtl::OUString sTypeName = OUString::createFromAscii("");
        ::rtl::OUString sUrl = OUString::createFromAscii("");
        ::rtl::OUString originalTypeName;
        Sequence<PropertyValue > lProps ;

        com::sun::star::uno::Reference< com::sun::star::io::XInputStream > xInStream;
		com::sun::star::uno::Reference< com::sun::star::io::XInputStream > xIn;
        ::rtl::OUString temp;
	    //OSL_ENSURE( sal_False, " starting Detect" );
		const PropertyValue * pValue = aArguments.getConstArray();
	    sal_Int32 nLength;
        ::rtl::OString resultString;

        nLength = aArguments.getLength();
        sal_Int32 location=nLength;
		for ( sal_Int32 i = 0 ; i < nLength; i++)
		{
		  	//OSL_ENSURE( sal_False, ::rtl::OUStringToOString(pValue[i].Name,RTL_TEXTENCODING_ASCII_US).getStr() );
			if ( pValue[i].Name.equalsAsciiL ( RTL_CONSTASCII_STRINGPARAM ( "TypeName" ) ) )
			{
			      //pValue[i].Value >>= originalTypeName;
                    location=i;
                   // OSL_ENSURE( sal_False, ::rtl::OUStringToOString(sTypeName,RTL_TEXTENCODING_ASCII_US).getStr() );

			}
			else if ( pValue[i].Name.equalsAsciiL ( RTL_CONSTASCII_STRINGPARAM ( "URL" ) ) )
			{

				pValue[i].Value >>= sUrl;
                   //OSL_ENSURE( sal_False, ::rtl::OUStringToOString(sUrl,RTL_TEXTENCODING_ASCII_US).getStr() );

			}
			else if ( pValue[i].Name.equalsAsciiL ( RTL_CONSTASCII_STRINGPARAM ( "InputStream" ) ) )
			{
				pValue[i].Value >>= xInStream ;
				pValue[i].Value >>= xIn ;
			}

		}
        try{
            Reference< com::sun::star::ucb::XCommandEnvironment > xEnv;
    		if (!xInStream.is())
             {
            	::ucbhelper::Content aContent(sUrl,xEnv);
            	xInStream = aContent.openStream();
             	if (!xInStream.is())
             	{
                 		return sTypeName;
             	}
             }
		com::sun::star::uno::Sequence< sal_Int8 > aData;
            /* long nBytesToRead= */ xInStream->available();
            xInStream->skipBytes (0);
            long bytestRead =xInStream->readBytes (aData,  4000);
            resultString=::rtl::OString((const sal_Char *)aData.getConstArray(),bytestRead) ;


             // test typedetect code
            Reference <XNameAccess> xTypeCont(mxMSF->createInstance(OUString::createFromAscii("com.sun.star.document.TypeDetection")),UNO_QUERY);
            Sequence < ::rtl::OUString > myTypes= xTypeCont->getElementNames();
            nLength = myTypes.getLength();


            sal_Int32 new_nlength=0;
            sal_Int32 i = 0 ;
 	        while(  (i < nLength) && (sTypeName.equalsAscii("")))
            {

                Any elem = xTypeCont->getByName(myTypes[i]);
                elem >>=lProps;
                new_nlength = lProps.getLength();
                sal_Int32 j =0;
                while( j < new_nlength && sTypeName.equalsAscii(""))
                {
                    ::rtl::OUString tmpStr =OUString::createFromAscii("");
                    lProps[j].Value >>=tmpStr;
                    if((lProps[j].Name.equalsAscii("ClipboardFormat")) && (!tmpStr.equalsAscii("")) )
                    {
                        sTypeName = supportedByType(tmpStr,resultString, myTypes[i]);
                    }
                 j++;
                }
            i++;
        }
        //end test

        }
        catch(Exception &)
        {
                 OSL_ENSURE( sal_False, "An Exception occurred while opening File stream" );
        }
        if(sTypeName.equalsAscii(""))
        {
            //sTypeName=::rtl::OUString::createFromAscii("writer_Flat_XML_File");
			//UOF v2.0 deep type detection
			if(sUrl.indexOf( ::rtl::OUString::createFromAscii(".uot") ) != -1 ||
				sUrl.indexOf( ::rtl::OUString::createFromAscii(".uos") ) != -1 ||
				sUrl.indexOf( ::rtl::OUString::createFromAscii(".uop") ) != -1)
			{
				if(xIn.is())
				{
					XSLT::UOF2Storage aUOF2Storage(mxMSF, xIn);
					if(aUOF2Storage.isValidUOF2Doc())
					{
						xIn->skipBytes(0);
						Reference< XInputStream > xUOFInputStream = aUOF2Storage.getMainStorageRef()->openInputStream(XSLT::UOFELEMNAME);
						if(xUOFInputStream.is())
						{
							Sequence< sal_Int8 > aSeq;
							xUOFInputStream->readBytes(aSeq, 2000);
							::rtl::OString sUOFXML( reinterpret_cast< sal_Char* >(aSeq.getArray()));
							OUString sOUSUOFXML( OStringToOUString(sUOFXML, RTL_TEXTENCODING_UTF8));
							if(sOUSUOFXML.getLength())
							{
								const OUString sText( OUString::createFromAscii("vnd.uof.text"));
								const OUString sCalc( OUString::createFromAscii("vnd.uof.spreadsheet"));
								const OUString sImpress( OUString::createFromAscii("vnd.uof.presentation"));

								if(sOUSUOFXML.indexOf(sText) != -1)
									sTypeName = OUString::createFromAscii("writer_NSO_UOF2");
								else if(sOUSUOFXML.indexOf(sCalc) != -1)
									sTypeName = OUString::createFromAscii("calc_NSO_UOF2");
								else if(sOUSUOFXML.indexOf(sImpress) != -1)
									sTypeName = OUString::createFromAscii("impress_NSO_UOF2");
							}
						}
					}
				}
			}
        }
        else
        {
			if ( location == aArguments.getLength() )
			{
				aArguments.realloc(nLength+1);
				aArguments[location].Name = ::rtl::OUString::createFromAscii( "TypeName" );
			}
        	aArguments[location].Value <<=sTypeName;
        }
       // OSL_ENSURE( sal_False, ::rtl::OUStringToOString(sTypeName,RTL_TEXTENCODING_ASCII_US).getStr() );


    return sTypeName;
}



::rtl::OUString SAL_CALL supportedByType( const ::rtl::OUString clipBoardFormat ,  const ::rtl::OString resultString, const ::rtl::OUString checkType)
{

    ::rtl::OUString sTypeName= OUString::createFromAscii("");
    if((clipBoardFormat.match(OUString::createFromAscii("doctype:"))))
    {
            ::rtl::OString tryStr = ::rtl::OUStringToOString(clipBoardFormat.copy(8),RTL_TEXTENCODING_ASCII_US).getStr();
            // OSL_ENSURE( sal_False, tryStr);			
            if (resultString.indexOf(tryStr) >= 0)
            {
                    sTypeName = checkType;
            }
    }
    return sTypeName;
}

// XInitialization

void SAL_CALL FilterDetect::initialize( const Sequence< Any >& aArguments )
	throw (Exception, RuntimeException)
{
	Sequence < PropertyValue > aAnySeq;
	sal_Int32 nLength = aArguments.getLength();
	if ( nLength && ( aArguments[0] >>= aAnySeq ) )
	{
		const PropertyValue * pValue = aAnySeq.getConstArray();
		nLength = aAnySeq.getLength();
		for ( sal_Int32 i = 0 ; i < nLength; i++)
		{

			if ( pValue[i].Name.equalsAsciiL ( RTL_CONSTASCII_STRINGPARAM ( "Type" ) ) )
			{
			     pValue[i].Value >>= msFilterName;

			}
			else if ( pValue[i].Name.equalsAsciiL ( RTL_CONSTASCII_STRINGPARAM ( "UserData" ) ) )
			{

				pValue[i].Value >>= msUserData;

			}
			else if ( pValue[i].Name.equalsAsciiL ( RTL_CONSTASCII_STRINGPARAM ( "TemplateName" ) ) )
			{

			  pValue[i].Value>>=msTemplateName;
			}

		}
	}
}



OUString FilterDetect_getImplementationName ()
	throw (RuntimeException)
{
	return OUString ( RTL_CONSTASCII_USTRINGPARAM ( "com.sun.star.comp.filters.XMLFilterDetect" ) );
}
#define SERVICE_NAME1 "com.sun.star.document.ExtendedTypeDetection"

sal_Bool SAL_CALL FilterDetect_supportsService( const OUString& ServiceName )
	throw (RuntimeException)
{
    return ServiceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM ( SERVICE_NAME1 ) );
}
Sequence< OUString > SAL_CALL FilterDetect_getSupportedServiceNames(  )
	throw (RuntimeException)
{
	Sequence < OUString > aRet(2);
    OUString* pArray = aRet.getArray();
    pArray[0] =  OUString ( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME1 ) );
    return aRet;
}
#undef SERVICE_NAME1
#undef SERVICE_NAME2

Reference< XInterface > SAL_CALL FilterDetect_createInstance( const Reference< XMultiServiceFactory > & rSMgr)
	throw( Exception )
{
	return (cppu::OWeakObject*) new FilterDetect( rSMgr );
}

// XServiceInfo
OUString SAL_CALL FilterDetect::getImplementationName(  )
	throw (RuntimeException)
{
	return FilterDetect_getImplementationName();
}
sal_Bool SAL_CALL FilterDetect::supportsService( const OUString& rServiceName )
	throw (RuntimeException)
{
    return FilterDetect_supportsService( rServiceName );
}
Sequence< OUString > SAL_CALL FilterDetect::getSupportedServiceNames(  )
	throw (RuntimeException)
{
    return FilterDetect_getSupportedServiceNames();
}