/**************************************************************
 * 
 * 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.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_dbaccess.hxx"

#include "TokenWriter.hxx"
#include <com/sun/star/sdbc/XColumnLocate.hpp>
#include <com/sun/star/sdbc/XResultSetMetaDataSupplier.hpp>
#include "dbu_misc.hrc"
#include "sqlmessage.hxx"
#include <vcl/msgbox.hxx>
#include "dbustrings.hrc"
#include <com/sun/star/sdbc/XRowUpdate.hpp>
#include <functional>
#include <rtl/logfile.hxx>

using namespace dbaui;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::sdb;
using namespace ::com::sun::star::lang;
//	using namespace ::com::sun::star::sdbcx;

// export data
ORowSetImportExport::ORowSetImportExport(	Window* _pParent,
											const Reference< XResultSetUpdate >& _xResultSetUpdate,
											const ::svx::ODataAccessDescriptor& _aDataDescriptor,
											const Reference< XMultiServiceFactory >& _rM,
											const String& rExchange
											) 
											: ODatabaseImportExport(_aDataDescriptor,_rM,NULL,rExchange) 
											,m_xTargetResultSetUpdate(_xResultSetUpdate)
											,m_xTargetRowUpdate(_xResultSetUpdate,UNO_QUERY)
											,m_pParent(_pParent)
											,m_bAlreadyAsked(sal_False)
{
    RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "misc", "Ocke.Janssen@sun.com", "ORowSetImportExport::ORowSetImportExport" );
	OSL_ENSURE(_pParent,"Window can't be null!");
}
// -----------------------------------------------------------------------------
void ORowSetImportExport::initialize()
{
    RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "misc", "Ocke.Janssen@sun.com", "ORowSetImportExport::initialize" );
	ODatabaseImportExport::initialize(); 
	// do namemapping 
	Reference<XColumnLocate> xColumnLocate(m_xResultSet,UNO_QUERY);
	OSL_ENSURE(xColumnLocate.is(),"The rowset normally should support this");

	m_xTargetResultSetMetaData = Reference<XResultSetMetaDataSupplier>(m_xTargetResultSetUpdate,UNO_QUERY)->getMetaData();
	if(!m_xTargetResultSetMetaData.is() || !xColumnLocate.is() || !m_xResultSetMetaData.is() )
        throw SQLException(String(ModuleRes(STR_UNEXPECTED_ERROR)),*this,::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("S1000")) ,0,Any());
	
	sal_Int32 nCount = m_xTargetResultSetMetaData->getColumnCount();
	m_aColumnMapping.reserve(nCount);
	m_aColumnTypes.reserve(nCount);
	for (sal_Int32 i = 1;i <= nCount; ++i)
	{
		sal_Int32 nPos = -1; // -1 means column is autoincrement or doesn't exists
		if(!m_xTargetResultSetMetaData->isAutoIncrement(i))
		{
			try
			{
				::rtl::OUString sColumnName = m_xTargetResultSetMetaData->getColumnName(i);
				nPos = xColumnLocate->findColumn(sColumnName);
			}
			catch(const SQLException&)
			{
				if(m_xTargetResultSetMetaData->isNullable(i))
					nPos = 0; // column doesn't exists but we could set it to null
			}
		}		

		m_aColumnMapping.push_back(nPos);
		if(nPos > 0)
			m_aColumnTypes.push_back(m_xResultSetMetaData->getColumnType(nPos));
		else
			m_aColumnTypes.push_back(DataType::OTHER);
	}
}
// -----------------------------------------------------------------------------
sal_Bool ORowSetImportExport::Write()
{
    RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "misc", "Ocke.Janssen@sun.com", "ORowSetImportExport::Write" );
	return sal_True;
}
// -----------------------------------------------------------------------------
sal_Bool ORowSetImportExport::Read()
{
    RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "misc", "Ocke.Janssen@sun.com", "ORowSetImportExport::Read" );
	// check if there is any column to copy
	if(::std::find_if(m_aColumnMapping.begin(),m_aColumnMapping.end(),
						::std::bind2nd(::std::greater<sal_Int32>(),0)) == m_aColumnMapping.end())
		return sal_False;
	sal_Int32 nCurrentRow = 0;
	sal_Int32 nRowFilterIndex = 0;
	sal_Bool bContinue = sal_True;
	if(m_aSelection.getLength())
	{
		const Any* pBegin = m_aSelection.getConstArray();
		const Any* pEnd	  = pBegin + m_aSelection.getLength();
		for(;pBegin != pEnd && bContinue;++pBegin)
		{
			sal_Int32 nPos = -1;
			*pBegin >>= nPos;
			OSL_ENSURE(nPos != -1,"Invalid posiotion!");
			bContinue = (m_xResultSet.is() && m_xResultSet->absolute(nPos) && insertNewRow());
		}
	}
	else
	{
		Reference<XPropertySet> xProp(m_xResultSet,UNO_QUERY);
		sal_Int32 nRowCount = 0;
		if ( xProp.is() && xProp->getPropertySetInfo()->hasPropertyByName(PROPERTY_ISROWCOUNTFINAL) )
		{
			sal_Bool bFinal = sal_False;
			xProp->getPropertyValue(PROPERTY_ISROWCOUNTFINAL) >>= bFinal;
			if ( !bFinal )
				m_xResultSet->afterLast();
			xProp->getPropertyValue(PROPERTY_ROWCOUNT) >>= nRowCount;
		}
		if ( !nRowCount )
		{
			m_xResultSet->afterLast();
			nRowCount = m_xResultSet->getRow();
		}
		OSL_ENSURE(nRowCount,"RowCount is 0!");
		m_xResultSet->beforeFirst();
		while(m_xResultSet.is() && m_xResultSet->next() && bContinue && nRowCount )
		{
			--nRowCount;
			++nCurrentRow;
			if(!m_pRowMarker || m_pRowMarker[nRowFilterIndex] == nCurrentRow)
			{
				++nRowFilterIndex;
				bContinue = insertNewRow();				
			}
		}
	}
	return sal_True;
}
// -----------------------------------------------------------------------------
sal_Bool ORowSetImportExport::insertNewRow()
{
    RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "misc", "Ocke.Janssen@sun.com", "ORowSetImportExport::insertNewRow" );
	try
	{
		m_xTargetResultSetUpdate->moveToInsertRow();
		sal_Int32 i = 1;
        ::std::vector<sal_Int32>::iterator aEnd = m_aColumnMapping.end();
		for (::std::vector<sal_Int32>::iterator aIter = m_aColumnMapping.begin(); aIter != aEnd ;++aIter,++i )
		{
			if(*aIter > 0)
			{
				Any aValue;
				switch(m_aColumnTypes[i-1])
				{
					case DataType::CHAR:
					case DataType::VARCHAR:
						aValue <<= m_xRow->getString(*aIter);
						break;
					case DataType::DECIMAL:
					case DataType::NUMERIC:
						aValue <<= m_xRow->getDouble(*aIter);
						break;
					case DataType::BIGINT:
						aValue <<= m_xRow->getLong(*aIter);
						break;
					case DataType::FLOAT:
						aValue <<= m_xRow->getFloat(*aIter);
						break;
					case DataType::DOUBLE:
						aValue <<= m_xRow->getDouble(*aIter);
						break;
					case DataType::LONGVARCHAR:
						aValue <<= m_xRow->getString(*aIter);
						break;
					case DataType::LONGVARBINARY:
						aValue <<= m_xRow->getBytes(*aIter);
						break;
					case DataType::DATE:
						aValue <<= m_xRow->getDate(*aIter);
						break;
					case DataType::TIME:
						aValue <<= m_xRow->getTime(*aIter);
						break;
					case DataType::TIMESTAMP:
						aValue <<= m_xRow->getTimestamp(*aIter);
						break;
					case DataType::BIT:
					case DataType::BOOLEAN:
						aValue <<= m_xRow->getBoolean(*aIter);
						break;
					case DataType::TINYINT:
						aValue <<= m_xRow->getByte(*aIter);
						break;
					case DataType::SMALLINT:
						aValue <<= m_xRow->getShort(*aIter);
						break;
					case DataType::INTEGER:
						aValue <<= m_xRow->getInt(*aIter);
						break;
					case DataType::REAL:
						aValue <<= m_xRow->getDouble(*aIter);
						break;
					case DataType::BINARY:
					case DataType::VARBINARY:
						aValue <<= m_xRow->getBytes(*aIter);
						break;
					case DataType::BLOB:
						aValue <<= m_xRow->getBlob(*aIter);
						break;
					case DataType::CLOB:
						aValue <<= m_xRow->getClob(*aIter);
						break;
					default:
						OSL_ENSURE(0,"Unknown type");
				}
				if(m_xRow->wasNull())
					m_xTargetRowUpdate->updateNull(i);
				else
					m_xTargetRowUpdate->updateObject(i,aValue);
			}
			else if(*aIter == 0)//now we have know that we to set this column to null
                m_xTargetRowUpdate->updateNull(i);
		}
		m_xTargetResultSetUpdate->insertRow();
	}
	catch(const SQLException&)
	{
		if(!m_bAlreadyAsked)
		{
			String sAskIfContinue = String(ModuleRes(STR_ERROR_OCCURED_WHILE_COPYING));
			OSQLWarningBox aDlg( m_pParent, sAskIfContinue, WB_YES_NO | WB_DEF_YES );
			if(aDlg.Execute() == RET_YES)
				m_bAlreadyAsked = sal_True;
			else
				return sal_False;
		}
	}
	return sal_True;
}
// -----------------------------------------------------------------------------