/**************************************************************
 * 
 * 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_forms.hxx"

#include <memory>

#include "submission_get.hxx"
#include "serialization_app_xml.hxx"
#include "serialization_urlencoded.hxx"

#include <rtl/strbuf.hxx>
#include <rtl/string.hxx>
#include <osl/file.hxx>
#include <unotools/processfactory.hxx>
#include <ucbhelper/content.hxx>

using namespace CSS::uno;
using namespace CSS::ucb;
using namespace CSS::task;
using namespace CSS::io;
using namespace rtl;
using namespace osl;
using namespace ucbhelper;
using namespace std;


CSubmissionGet::CSubmissionGet(const rtl::OUString& aURL, const CSS::uno::Reference< CSS::xml::dom::XDocumentFragment >& aFragment)
    : CSubmission(aURL, aFragment) 
{
}

CSubmission::SubmissionResult CSubmissionGet::submit(const CSS::uno::Reference< CSS::task::XInteractionHandler >& aInteractionHandler)
{    
    // GET always uses apllicatin/x-www-formurlencoded
    auto_ptr< CSerialization > apSerialization(new CSerializationURLEncoded());
    apSerialization->setSource(m_aFragment);
    apSerialization->serialize();

    CSS::uno::Reference< XInputStream > aInStream = apSerialization->getInputStream();

    // create a commandEnvironment and use the default interaction handler
    CCommandEnvironmentHelper *pHelper = new CCommandEnvironmentHelper;
    if( aInteractionHandler.is() )
        pHelper->m_aInteractionHandler = aInteractionHandler;
    else
        pHelper->m_aInteractionHandler = CSS::uno::Reference< XInteractionHandler >(m_aFactory->createInstance(
            OUString::createFromAscii("com.sun.star.task.InteractionHandler")), UNO_QUERY);
    OSL_ENSURE(pHelper->m_aInteractionHandler.is(), "failed to create IntreractionHandler");
    CProgressHandlerHelper *pProgressHelper = new CProgressHandlerHelper;
    pHelper->m_aProgressHandler = CSS::uno::Reference< XProgressHandler >(pProgressHelper);

    // UCB has ownership of environment...
    CSS::uno::Reference< XCommandEnvironment > aEnvironment(pHelper);

    // append query string to the URL
    try {
        OStringBuffer aUTF8QueryURL(OUStringToOString(m_aURLObj.GetMainURL(INetURLObject::NO_DECODE),
            RTL_TEXTENCODING_UTF8));
		OStringBuffer aQueryString;
        
        const sal_Int32 size = 1024;
        sal_Int32 n = 0;
        Sequence< sal_Int8 > aByteBuffer(size);
        while ((n = aInStream->readSomeBytes(aByteBuffer, size-1)) != 0)
            aQueryString.append((sal_Char*)aByteBuffer.getArray(), n);
		if (aQueryString.getLength() > 0 && m_aURLObj.GetProtocol() != INET_PROT_FILE)
		{
			aUTF8QueryURL.append('?');
			aUTF8QueryURL.append(aQueryString.makeStringAndClear());
		}
        OUString aQueryURL = OStringToOUString(aUTF8QueryURL.makeStringAndClear(), RTL_TEXTENCODING_UTF8);
        ucbhelper::Content aContent(aQueryURL, aEnvironment);
        CSS::uno::Reference< XOutputStream > aPipe(m_aFactory->createInstance(
            OUString::createFromAscii("com.sun.star.io.Pipe")), UNO_QUERY_THROW);
        aContent.openStream(aPipe);
        // get reply
        try {
            m_aResultStream = aContent.openStream();
        } catch (Exception&) {
            OSL_ENSURE(sal_False, "Cannot open reply stream from content");
        }
    } catch (Exception&)
    {
        // XXX
        OSL_ENSURE(sal_False, "Exception during UCB operatration.");
        return UNKNOWN_ERROR;
    }

    return SUCCESS;
}