/**************************************************************
 * 
 * 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_comphelper.hxx"
#include <comphelper/stillreadwriteinteraction.hxx>

#ifndef __COM_SUN_STAR_UCB_INTERACTIVEIOEXCEPTION_HPP__
#include <com/sun/star/ucb/InteractiveIOException.hpp>
#endif

#ifndef __COM_SUN_STAR_TASK_XINTERACTIONABORT_HPP__
#include <com/sun/star/task/XInteractionAbort.hpp>
#endif

#ifndef __COM_SUN_STAR_UCB_UNSUPPORTEDDATASINKEXCEPTION_HPP__
#include <com/sun/star/ucb/UnsupportedDataSinkException.hpp>
#endif

#include <com/sun/star/ucb/AuthenticationRequest.hpp>

namespace comphelper{

	namespace css = ::com::sun::star;

    StillReadWriteInteraction::StillReadWriteInteraction(const css::uno::Reference< css::task::XInteractionHandler >& xHandler,
                                                         const css::uno::Reference< css::task::XInteractionHandler >& xAuthenticationHandler)
 			: m_bUsed                    (sal_False)
 			, m_bHandledByMySelf         (sal_False)
 			, m_bHandledByInternalHandler(sal_False)
 			, m_xAuthenticationHandler(xAuthenticationHandler)
{
	::std::vector< ::ucbhelper::InterceptedInteraction::InterceptedRequest > lInterceptions;
	::ucbhelper::InterceptedInteraction::InterceptedRequest                  aInterceptedRequest;

	aInterceptedRequest.Handle = HANDLE_INTERACTIVEIOEXCEPTION;
	aInterceptedRequest.Request <<= css::ucb::InteractiveIOException();
	aInterceptedRequest.Continuation = ::getCppuType(static_cast< css::uno::Reference< css::task::XInteractionAbort >* >(0));
	aInterceptedRequest.MatchExact = sal_False;
	lInterceptions.push_back(aInterceptedRequest);

	aInterceptedRequest.Handle = HANDLE_UNSUPPORTEDDATASINKEXCEPTION;
	aInterceptedRequest.Request <<= css::ucb::UnsupportedDataSinkException();
	aInterceptedRequest.Continuation = ::getCppuType(static_cast< css::uno::Reference< css::task::XInteractionAbort >* >(0));
	aInterceptedRequest.MatchExact = sal_False;
	lInterceptions.push_back(aInterceptedRequest);

	aInterceptedRequest.Handle = HANDLE_AUTHENTICATIONREQUESTEXCEPTION;
	aInterceptedRequest.Request <<= css::ucb::AuthenticationRequest();
	aInterceptedRequest.Continuation = ::getCppuType(static_cast< css::uno::Reference< css::task::XInteractionAbort >* >(0));
	aInterceptedRequest.MatchExact = sal_False;
	lInterceptions.push_back(aInterceptedRequest);

	setInterceptedHandler(xHandler);
	setInterceptions(lInterceptions);
}

void StillReadWriteInteraction::resetInterceptions()
{
	setInterceptions(::std::vector< ::ucbhelper::InterceptedInteraction::InterceptedRequest >());
}

void StillReadWriteInteraction::resetErrorStates()
{
	m_bUsed                     = sal_False;
	m_bHandledByMySelf          = sal_False;
	m_bHandledByInternalHandler = sal_False;
}

sal_Bool StillReadWriteInteraction::wasWriteError()
{
	return (m_bUsed && m_bHandledByMySelf);
}

ucbhelper::InterceptedInteraction::EInterceptionState StillReadWriteInteraction::intercepted(const ::ucbhelper::InterceptedInteraction::InterceptedRequest&                         aRequest,
																  const ::com::sun::star::uno::Reference< ::com::sun::star::task::XInteractionRequest >& xRequest)
{
	// we are used!
	m_bUsed = sal_True;

	// check if its a real interception - might some parameters are not the right ones ...
	sal_Bool bAbort = sal_False;
	switch(aRequest.Handle)
	{
	case HANDLE_INTERACTIVEIOEXCEPTION:
		{
			css::ucb::InteractiveIOException exIO;
			xRequest->getRequest() >>= exIO;
			bAbort = (
				(exIO.Code == css::ucb::IOErrorCode_ACCESS_DENIED     )
				|| (exIO.Code == css::ucb::IOErrorCode_LOCKING_VIOLATION )
				|| (exIO.Code == css::ucb::IOErrorCode_NOT_EXISTING )
#ifdef MACOSX
				// this is a workaround for MAC, on this platform if the file is locked
				// the returned error code looks to be wrong
				|| (exIO.Code == css::ucb::IOErrorCode_GENERAL )
#endif
				);
		}
		break;

	case HANDLE_UNSUPPORTEDDATASINKEXCEPTION:
		{
			bAbort = sal_True;
		}
		break;
    case HANDLE_AUTHENTICATIONREQUESTEXCEPTION:
		{
//use internal authentication dedicated handler and return
            if (m_xAuthenticationHandler.is())
            {
                m_xAuthenticationHandler->handle(xRequest);
                return ::ucbhelper::InterceptedInteraction::E_INTERCEPTED;
            }
            else //simply abort
                bAbort = sal_True;;
		}
		break;
	}

	// handle interaction by ourself
	if (bAbort)
	{
		m_bHandledByMySelf = sal_True;
		css::uno::Reference< css::task::XInteractionContinuation > xAbort = ::ucbhelper::InterceptedInteraction::extractContinuation(
			xRequest->getContinuations(),
			::getCppuType(static_cast< css::uno::Reference< css::task::XInteractionAbort >* >(0)));
		if (!xAbort.is())
			return ::ucbhelper::InterceptedInteraction::E_NO_CONTINUATION_FOUND;
		xAbort->select();
		return ::ucbhelper::InterceptedInteraction::E_INTERCEPTED;
	}

	// Otherwise use internal handler.
	if (m_xInterceptedHandler.is())
	{
		m_bHandledByInternalHandler = sal_True;
		m_xInterceptedHandler->handle(xRequest);
	}
	return ::ucbhelper::InterceptedInteraction::E_INTERCEPTED;
}
}