/*

* 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:      implements a session towards a media server

*

*/

// INCLUDES

// upnp stack api

#include <upnpcontainer.h>

#include <upnpobjectlist.h>

#include <upnpitem.h>

#include <upnpstring.h>

// upnpframework / avcontroller api

#include "upnpavdevice.h"

#include "upnpavbrowsingsessionobserver.h"

// avcontroller internal

#include "upnpavcontrollerclient.h"

#include "upnpavrequest.h"

#include "upnpavbrowserequest.h"

#include "upnpavdeviceactive.h"

#include "upnpavbrowsingsessionimpl.h"

_LIT( KComponentLogfile, "upnpavcontrollerclient.txt");

#include "upnplog.h"

// ======== MEMBER FUNCTIONS ========

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::NewL

// Two-phase construction

// --------------------------------------------------------------------------

CUPnPAVBrowsingSessionImpl* CUPnPAVBrowsingSessionImpl::NewL(

    RUPnPAVControllerClient& aServer, const CUpnpAVDevice& aDevice )

    {

    CUPnPAVBrowsingSessionImpl* self = new (ELeave)

        CUPnPAVBrowsingSessionImpl( aServer );

    CleanupStack::PushL( self );

    self->iDevice = CUpnpAVDevice::NewL( aDevice );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::CUPnPAVBrowsingSessionImpl

// Constructor

// --------------------------------------------------------------------------

CUPnPAVBrowsingSessionImpl::CUPnPAVBrowsingSessionImpl(

    RUPnPAVControllerClient& aServer ) :

    CActive( EPriorityStandard ),

    iServer( aServer ),

    iBufferPtr( 0, 0 ),

    iBufferPtr2( 0, 0 ),

    iBufferPtr3( 0, 0 ),

    iRespBufSizePkg( iRespBufSize ),

    //iMatchesPkg( iMatches ),

    iRespParamsPkg( iRespParams ),

    iPendingOperation( ENone ),

    iAlive( ETrue )

    {

    CActiveScheduler::Add( this );

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::~CUPnPAVBrowsingSessionImpl

// Destructor

// --------------------------------------------------------------------------

CUPnPAVBrowsingSessionImpl::~CUPnPAVBrowsingSessionImpl()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::~CUPnPAVBrowsingSessionImpl" );

    delete iBuffer;

    iBuffer = NULL;

    delete iBuffer2;

    iBuffer2 = NULL;

    delete iBuffer3;

    iBuffer3 = NULL;

    delete iDeviceActive;

    iDeviceActive = NULL;

    //delete iParser;

    delete iDevice;    

    iDevice = NULL;

    Cancel();

    if( iMediaServerResourceReserved )

        {

        iServer.ReleaseMediaServer( (TInt)this );

        }    

    iServer.DestroyBrowsingSession( (TInt)this );

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::ConstructL

// Two-phase construction

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::ConstructL()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::ConstructL" );

    iBuffer = iDevice->Uuid().AllocL();

    iBufferPtr.Set( iBuffer->Des() );

    User::LeaveIfError( iServer.CreateBrowsingSession(

        (TInt)this , iBufferPtr ) );

    //iParser = CUPnPXMLParser::NewL();

    iDeviceActive = CUPnPAVDeviceActive::NewL( iServer, *this );

    iDeviceActive->StartListening( (TInt)this );

    }

void CUPnPAVBrowsingSessionImpl::RunL()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::RunL" );

    switch( iPendingOperation )

        {

        case EBrowseSize:

            {

            iPendingOperation = ENone;

            BrowseSizeCompletedL();

            }

            break;

        case ESearchSize:

            {

            iPendingOperation = ENone;

            SearchSizeCompletedL();

            }

            break;

        case EGetSearchCapabilities:

            {

            SearchCapabilitiesCompletedL();

            }

            break;

        case ECreateContainer:

            {

            CreateContainerCompletedL();

            }

            break;

        case EDeleteObject:

            {

            DeleteObjectCompletedL();

            }

            break;

        case EStartMediaServer:

            {

            StartMediaServerCompleteL();

            }

            break;

        default:

            __PANICD( __FILE__, __LINE__ );

            break;            

        }    

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::DoCancel

// From CActive

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::DoCancel()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::DoCancel" );

    switch( iPendingOperation )

        {

        case EBrowseSize:

            {

            iServer.CancelBrowseResponseSize( (TInt)this );

            }

            break;

        case ESearchSize:

            {

            iServer.CancelSearchResponseSize( (TInt)this );

            }

            break;

        case EGetSearchCapabilities:

            {

            iServer.CancelGetSearchCapabilitiesSize( (TInt)this );

            }

            break;

        case ECreateContainer:

            {

            iServer.CancelCreateContainer( (TInt)this );

            }

            break;

        case EDeleteObject:

            {

            iServer.CancelDeleteObject( (TInt)this );

            }

            break;

        case EStartMediaServer:

            {

            iServer.CancelReserveMediaServer( (TInt)this );

            }

            break;          

        default:

            __PANICD( __FILE__, __LINE__ );

            break;            

        }        

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::RunError

// From CActive

// --------------------------------------------------------------------------

TInt CUPnPAVBrowsingSessionImpl::RunError( TInt /*aError*/ )

    {

    return KErrNone;

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::SetObserver

// Sets observer

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::SetObserver(

    MUPnPAVBrowsingSessionObserver& aObserver )

    {

    iObserver = &aObserver;

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::RemoveObserver

// Removes observer

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::RemoveObserver()

    {

    iObserver = NULL;

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::Observer

// Returns observer

// --------------------------------------------------------------------------

MUPnPAVBrowsingSessionObserver* CUPnPAVBrowsingSessionImpl::Observer() const

    {

    return iObserver;

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::Device

// Returns used device

// --------------------------------------------------------------------------

const CUpnpAVDevice& CUPnPAVBrowsingSessionImpl::Device() const

    {

    return *iDevice;

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::ReserveLocalMSServicesL

// Reserves local media server

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::ReserveLocalMSServicesL()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::ReserveLocalMSServicesL" );

    ResetL();

    if( iMediaServerResourceReserved )

        {

        if( iObserver )

            {

            iObserver->ReserveLocalMSServicesCompleted( KErrNone );

            }

        }

    else

        {

        iPendingOperation = EStartMediaServer;

        iServer.ReserveMediaServer( (TInt)this, iStatus );

        SetActive();            

        }    

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::CancelReserveLocalMSServicesL

// Cancel reserve local media server

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::CancelReserveLocalMSServicesL()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::CancelReserveLocalMSServicesL" );

    if( iPendingOperation == EStartMediaServer )

        {

        Cancel();

        }

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::ReleaseLocalMSServicesL

// Release local media server

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::ReleaseLocalMSServicesL()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::ReleaseLocalMSServicesL" );

    ResetL();

    if( iMediaServerResourceReserved )

        {

        iMediaServerResourceReserved = EFalse;

        User::LeaveIfError( iServer.ReleaseMediaServer( (TInt)this ) );

        }

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::BrowseL

// Browse

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::BrowseL( const TDesC8& aId,

                          const TDesC8& aFilter,

                          TBrowseFlag aBrowseFlag,

                          TInt aStartIndex,

                          TInt aRequestedCount,

                          const TDesC8& aSortCriteria )

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::BrowseL" );

    ResetL();

    CUpnpAVBrowseRequest* request = CUpnpAVBrowseRequest::NewLC();

    request->SetIdL( aId );

    request->SetFilterL( aFilter );

    request->SetBrowseFlag( aBrowseFlag );

    request->SetStartIndex( aStartIndex );

    request->SetRequestedCount( aRequestedCount );

    request->SetSortCriteriaL( aSortCriteria );

    request->SetSearchCriteriaL( KNullDesC8 ); // Not needed in browse

    iBuffer = request->ToDes8L();

    iBufferPtr.Set( iBuffer->Des() );

    CleanupStack::PopAndDestroy( request );

    iPendingOperation = EBrowseSize;

    iServer.BrowseResponseSize( (TInt)this, iBufferPtr,

        iRespParamsPkg, iStatus );

    SetActive();

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::CancelBrowse

// Cancels browse

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::CancelBrowse()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::CancelBrowse" );

    if( iPendingOperation == EBrowseSize )

        {

        Cancel();

        }     

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::SearchL

// Search

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::SearchL(   const TDesC8& aId,

                                            const TDesC8& aSearchCriteria,

                                            const TDesC8& aFilter,

                                            TInt aStartIndex,

                                            TInt aRequestedCount,

                                            const TDesC8& aSortCriteria )

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::SearchL" );

    ResetL();

    CUpnpAVBrowseRequest* request = CUpnpAVBrowseRequest::NewLC();

    request->SetIdL( aId );

    request->SetSearchCriteriaL( aSearchCriteria );

    request->SetFilterL( aFilter );

    //request->SetBrowseFlag( aBrowseFlag );

    request->SetStartIndex( aStartIndex );

    request->SetRequestedCount( aRequestedCount );

    request->SetSortCriteriaL( aSortCriteria );

    iBuffer = request->ToDes8L();

    iBufferPtr.Set( iBuffer->Des() );

    CleanupStack::PopAndDestroy( request );

    iPendingOperation = ESearchSize;

    iServer.SearchResponseSize( (TInt)this, iBufferPtr,

        iRespParamsPkg, iStatus );

    SetActive();    

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::CancelSearch

// Cancel search

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::CancelSearch()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::CancelSearch" );

    if( iPendingOperation == ESearchSize )

        {

        Cancel();

        }

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::GetSearchCapabilitiesL

// Get search capabilities

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::GetSearchCapabilitiesL()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::GetSearchCapabilitiesL" );

    ResetL();

    iPendingOperation = EGetSearchCapabilities;

    iServer.GetSearchCapabilitiesSize( (TInt)this,

        iRespBufSizePkg, iStatus );

    SetActive();

    }                

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::CreateContainerL

// Create a container

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::CreateContainerL( 

                                            const TDesC8& aTitle,

                                            const TDesC8& aParentId,

                                            TContainerType aContainerType )

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::CreateContainerL" );

    ResetL();

    iBuffer = aTitle.AllocL();

    iBufferPtr.Set( iBuffer->Des() );

    iBuffer2 = aParentId.AllocL();

    iBufferPtr2.Set( iBuffer2->Des() );

    iServer.CreateContainer( (TInt)this, 

                              iBufferPtr,

                              iBufferPtr2,

                              (TInt)aContainerType,

                              iStatus );

    iPendingOperation = ECreateContainer;

    SetActive();

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::UPnPDeviceDiscovered

// Device discovered

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::UPnPDeviceDiscovered(

    const CUpnpAVDevice& /*aDevice*/ )

    {

    // No implementation needed

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::UPnPDeviceDisappeared

// Device disappeared

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::UPnPDeviceDisappeared(

    const CUpnpAVDevice& /*aDevice*/ )

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::UPnPDeviceDisappeared" );

    iAlive = EFalse;

    if( iObserver )

        {

        iObserver->MediaServerDisappeared( 

            MUPnPAVSessionObserverBase::EDisconnected );

        }

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::WLANConnectionLost

// Connection lost

// --------------------------------------------------------------------------

void CUPnPAVBrowsingSessionImpl::WLANConnectionLost()

    {

    __LOG( "CUPnPAVBrowsingSessionImpl::WLANConnectionLost" );

    iAlive = EFalse;

    if( iObserver )    

        {

        iObserver->MediaServerDisappeared( 

            MUPnPAVSessionObserverBase::EWLANLost );

        }

    }

// --------------------------------------------------------------------------

// CUPnPAVBrowsingSessionImpl::DeleteObjectL

// Delete object

// --------------------------------------------------------------------------