/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Implementation of DownloadGateway class.

*

*/

#include "DownloadGateway.h"

#include <e32std.h>

#define RETURN_IF_ERROR(x) if(x != KErrNone) return x

using namespace multimedia;

// CONSTANTS

CDownloadGateway::CDownloadGateway()

    {

    iDMgrConnected = EFalse;

    iDownload = NULL;

    iDownloadId = 0;

    }

CDownloadGateway::~CDownloadGateway()

    {

    if ( iDMgrConnected )

        {

        iDownloadMgr.Close();

        }

    }

TInt CDownloadGateway::Initialize(TUid aClientUid)

    {

    TInt status(KErrNone);

    if ( !iDMgrConnected )

        {

        TRAP(status,iDownloadMgr.ConnectL( aClientUid, *this, EFalse ));

        if(!status)

            {

            iDMgrConnected = ETrue;

            }

        }

    return status;

    }

TInt CDownloadGateway::MoveFile( TInt aId, const TDesC& aDestFileName )

    {

    TInt status(KErrNotFound);

    // Check here if the download is complete and the Source is in Stopped State

    if(iDownloadId == aId && iDownload)

        {

        status = iDownload->SetStringAttribute( EDlAttrDestFilename, aDestFileName );

        if(!status)

            {

            iDownload->Move();

            }

        }

    return status;

    }

TInt CDownloadGateway::ConnectToDownload(TInt aId, MDownloadGatewayObserver& aObserver, TUid /*aAppUid*/)

    {

    TInt status(KErrNotFound);

    TRAP(status, iDownload = &(iDownloadMgr.AttachToDownloadL( aId )));

    if(status == KErrNone)

    	{

	    iObserver = &aObserver;

	    iDownloadId = aId;

    	}

	else

		{

		iDownload = NULL;	

		}    	

    return status;

    }

TInt CDownloadGateway::DisconnectFromDownload(TInt aId)

    {

    TInt status(KErrNotFound);

    if(iDownloadId == aId && iDownload)

        {

        iDownload = NULL;

        iDownloadId = 0;

        status = KErrNone;

        }

    return status;

    }

TInt CDownloadGateway::GetMimeType(TInt aId, TDes8& aMimeType)

    {

    TInt status(KErrNotFound);

    if(iDownloadId == aId && iDownload)

        {

        status = iDownload->GetStringAttribute( EDlAttrContentType, aMimeType  );

        }

    return status;

    }

TInt CDownloadGateway::GetCurrentSize(  TInt aId, TUint& aSize )

    {

    TInt status(KErrNotFound);

    TInt32 value(0);

    if(iDownloadId == aId && iDownload)

        {

         status = iDownload->GetIntAttribute( EDlAttrDownloadedSize, value );

         if(!status)

            {

            aSize = value;

            }

        }

    return status;

    }

TInt CDownloadGateway::GetDownloadSize( TInt aId, TUint& aSize )

    {

    TInt status(KErrNotFound);

    TInt32 value(0);

    if(iDownloadId == aId && iDownload)

        {

        status = iDownload->GetIntAttribute( EDlAttrLength, value );

        if(status == KErrNone)

            {

            aSize = value;

            }

        }

    return status;

    }

TInt CDownloadGateway::GetDownloadStatus(TInt aId, MProgDLSource::TDownloadStatus& aStatus)

    {

    TInt status(KErrNotFound);

    if(iDownloadId == aId && iDownload)

        {

        aStatus = iDownloadStatus;

        }

    return status;

    }

TInt CDownloadGateway::DeleteDownload(TInt aId)

    {

    TInt status(KErrNotFound);

    if(iDownloadId == aId && iDownload)

        {

        status = iDownload->Delete();

        }

    return status;

    }

TInt CDownloadGateway::ResumeDownload(TInt aId)

    {

    TInt status(KErrNotFound);

    if(iDownloadId == aId && iDownload)

        {

        status = iDownload->Start();

        }

    return status;

    }

TInt CDownloadGateway::SetProgressiveMode(TInt aId, TBool aMode)

    {

    TInt status(KErrNotFound);

    if(iDownloadId == aId && iDownloadStatus != MProgDLSource::EDeleted && iDownload)

        {

        status = iDownload->SetBoolAttribute( EDlAttrProgressive, aMode );

        }

    return status;

    }

TInt CDownloadGateway::SetLocalFileName( TInt aId, TDesC& aFilName )

    {

    TInt status(KErrNotFound);

    if( iDownloadId == aId  && iDownload)

        {

        status = iDownload->SetStringAttribute( EDlAttrLocalFileName, aFilName );

        }

    return status;

    }

TInt CDownloadGateway::GetLocalFileName( TInt aId, TDes& aFileName )

    {

    TInt status(KErrNotFound);

    if( iDownloadId == aId  && iDownload)

        {

        status = iDownload->GetStringAttribute( EDlAttrDestFilename, aFileName );

        }

    return status;

    }

void CDownloadGateway::HandleDMgrEventL( RHttpDownload& /*aDownload*/, THttpDownloadEvent aEvent )

    {

#ifdef _DEBUG

        RDebug::Print(_L("CDownloadGateway::HandleDMgrEventL DownloadState[%d] ProgressState[%d]"),aEvent.iDownloadState,aEvent.iProgressState);

#endif        

        MProgDLSource::TDownloadStatus status;

        // When the new evnet is different in one of the states 

        // then the current event 

        if(iPrevEvent.iDownloadState != aEvent.iDownloadState)

            {

                switch(aEvent.iDownloadState)

                {

                    case EHttpDlCreated:

                            status = MProgDLSource::EConnecting;

                            break;

                    case EHttpDlInprogress:

                            status = MProgDLSource::EStarted;

                            break;

                    case EHttpDlPaused:

                            status = MProgDLSource::EPaused;

                            break;

                    case EHttpDlCompleted:

                            status = MProgDLSource::ECompleted;

                            break;

                    case EHttpDlFailed:

                            status = MProgDLSource::EFailed;

                            break;

                    case EHttpDlDeleting:

                            status = MProgDLSource::EDeleted;

                            break;                        

                    default:

                            status = MProgDLSource::EUnknown;

                            break;

                };

                iDownloadStatus = status;

                iObserver->Event(status);

            }

        if(iPrevEvent.iProgressState != aEvent.iProgressState)

            {

                switch(aEvent.iProgressState)

                {

                    case EHttpProgContentFileMoved:

                            {

                            TInt32 value(0);

                            TInt err = iDownload->GetIntAttribute( EDlAttrErrorId, value );

#ifdef _DEBUG

                            RDebug::Print(_L("Delete File Code 2[%d][%d]"),err,value);

#endif                            

                            if(!err)

                                {

                                iObserver->MoveFileComplete(value);

                                }

                            }

                            break;

                   case EHttpProgCodLoadEnd:

                            // Case for COD download complete

                            iDownloadStatus = MProgDLSource::ECompleted;

                            iObserver->Event(MProgDLSource::ECompleted);

                            break;

                    case EHttpProgContentFileMovedAndDestFNChanged:

                            {

                            iObserver->MoveFileComplete(KErrAlreadyExists);

                            break;

                            }

                };

            }

        iPrevEvent = aEvent;

    }

// End of file