/*

* Copyright (c) 2010 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:  

*

*/

// INCLUDE FILES

#include "cmessagemonitor.h"

#include "harvesterserverlogger.h"

#include <smut.h>

#include <mmsvattachmentmanager.h>	// MMsvAttachmentManager

#include <msventry.h>	// CMsvEntry

#include <msvuids.h>

#include <mmsconst.h>

#include <mtclreg.h>

#include <smsclnt.h>

#include <senduiconsts.h>

// DEFINES

#define INDEXING_QUEUE_MAX 100 // Maximum number of messages in the queue

#define INDEXING_DELAY 5000000 // Nano seconds to delay the monitored messages 

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

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

// CMessageMonitor::NewL

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

//

CMessageMonitor* CMessageMonitor::NewL(  CMessagePlugin& aMessagePlugin, CMsvSession& aSession )

	{

	CMessageMonitor* self = new ( ELeave ) CMessageMonitor( aMessagePlugin, aSession );

	CleanupStack::PushL( self );

	self->ConstructL();

	CleanupStack::Pop( self );

	return self;

	}

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

// CMessageMonitor::CMessageMonitor

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

//

CMessageMonitor::CMessageMonitor( CMessagePlugin& aMessagePlugin, CMsvSession& aSession )

	: CActive(CActive::EPriorityStandard),

	iState(EStateNone),

	iMsvSession(aSession),

	iMessagePlugin(aMessagePlugin)

	{

	CPIXLOGSTRING("ENTER CMessageMonitor::CMessageMonitor");

	CActiveScheduler::Add(this);

	CPIXLOGSTRING("END CMessageMonitor::CMessageMonitor");

	}

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

// CMessageMonitor::ConstructL

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

//

void CMessageMonitor::ConstructL() 

	{

	CPIXLOGSTRING("ENTER CMessageMonitor::ConstructL");

	// Create timer 

	User::LeaveIfError(iTimer.CreateLocal());

	CPIXLOGSTRING("END CMessageMonitor::ConstructL");

	}

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

// CMessageMonitor::~CMessageMonitor

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

//

CMessageMonitor::~CMessageMonitor() 

	{

	CPIXLOGSTRING("ENTER ~CMessageMonitor");

	Cancel();

	iMessages.Close();

	iTimer.Close();

	CPIXLOGSTRING("END ~CMessageMonitor");

	}

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

// CMessageMonitor::HandleMsgMovedL

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

//

void CMessageMonitor::HandleMsgMovedL( const TMsvId aNewFolderId, 

									   const TMsvId /* aOldFolderId */, 

								   	   const CMsvEntrySelection& aSelection )

	{

	CPIXLOGSTRING("ENTER CMessageMonitor::HandleMsgMovedL");

	const TInt count( aSelection.Count() );

	// cycle through every message in the CMsvEntrySelection

	for ( TInt i=0; i < count; ++i )

		{

		TMsvId msgId = aSelection[i];

		CPIXLOGSTRING2("msgId: %d", msgId );

        MessageItemL( msgId, ECPixUpdateAction, aNewFolderId );

		}

	CPIXLOGSTRING("END CMessageMonitor::HandleMsgMovedL");

	}

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

// CMessageMonitor::0

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

//

void CMessageMonitor::HandleMsgCreatedChangedL( const CMsvEntrySelection& aSelection,

                                          	    const TMsvId aFolderId,

                                          	    const MMsvSessionObserver::TMsvSessionEvent /*aEvent*/ )

	{

	CPIXLOGSTRING("ENTER CMessageMonitor::HandleMsgCreatedChangedL");	

	const TInt count( aSelection.Count() );

	//MMsvSessionObserver::TMsvSessionEvent theEvent = aEvent;

    // cycle through every message in the CMsvEntrySelection

	for ( TInt i=0; i < count; ++i )

		{

		// extract the message server entry from the parameters

		TMsvId msgId = aSelection[i];

		CPIXLOGSTRING2("msgId: %d", msgId );							

        TMsvId service = 0;

        TMsvEntry entry;

        const TInt err = iMsvSession.GetEntry( msgId, service, entry );

        if ( ( !err ) && 

            ( KUidMsvMessageEntry == entry.iType ) && 

            ( entry.Visible() && entry.Complete() && !entry.InPreparation() ) &&

            ( iMessagePlugin.CalculateMessageType( entry ) != EMsgTypeInvalid ) )

            {

            CPIXLOGSTRING("CMessageMonitor::HandleMsgCreatedChangedL Called # MonitorEvent #");

            MessageItemL( msgId, ECPixUpdateAction, aFolderId );

            }   

        CPIXLOGSTRING2(" Folder TYPE %x", aFolderId );	     

        CPIXLOGSTRING2(" Entry TYPE %x", entry.iType );	           

        CPIXLOGSTRING2(" Entry VISIBLE %d", entry.Visible() );	          

        CPIXLOGSTRING2(" Entry COMPLETE %d", entry.Complete() );

        CPIXLOGSTRING2(" Entry INPREPARATION %d", entry.InPreparation() );

        CPIXLOGSTRING2(" Message TYPE %d", iMessagePlugin.CalculateMessageType( entry ));

        }

	CPIXLOGSTRING("END CMessageMonitor::HandleMsgCreatedChangedL");	        

	}

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

// CMessageMonitor::HandleMsgDeletedL

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

//

void CMessageMonitor::HandleMsgDeletedL( const CMsvEntrySelection& aSelection )

	{

	CPIXLOGSTRING("ENTER CMessageMonitor::HandleMsgDeletedL");

	const TInt count( aSelection.Count() );

	// cycle through every message in the CMsvEntrySelection

	for( TInt i = 0; i < count; ++i )

		{

		TMsvId msgId = aSelection[i];	

		CPIXLOGSTRING2("msgId: %d", msgId );								

		MessageItemL( msgId, ECPixRemoveAction, NULL);

		}

	CPIXLOGSTRING("END CMessageMonitor::HandleMsgDeletedL");	

	}	

void CMessageMonitor::OverwriteOrAddToQuereL(TMsvId aMsvId, TCPixActionType aAction, TMsvId aFolderId)

{

	// Overwrite or add the index to the queue

	TMessageRecord message;

	message.iMsvId = aMsvId;

	message.iAction = aAction;

	message.iFolderId = aFolderId;

	for (TInt i=0; i<iMessages.Count(); i++)

	{

		if (iMessages[i].iMsvId==aMsvId)

		{

			// Older version found

			iMessages[i] = message;

			return;

		}

	}

	// older not found, append

	iMessages.AppendL(message);

}

void CMessageMonitor::MessageItemL(TMsvId aMsvId, TCPixActionType aAction, TMsvId aFolderId)

	{	

		// Overwrite or add the index to the queue

		OverwriteOrAddToQuereL(aMsvId, aAction, aFolderId);

		// Check the size against maximum queue size

		if (iMessages.Count() > INDEXING_QUEUE_MAX)

		{

			// Maximum is exceeded, force the write immediately

			if (iState == EStateWaiting)

			{

				iTimer.Cancel(); // RunL will be called with iStatus of KErrCancelled

			}

			else if (iState == EStateNone)

			{

		        SetActive();

		        TRequestStatus* status = &iStatus;

		        User::RequestComplete(status, KErrNone); // RunL will be called with iStatus of KErrNone

			}

		}

		else

		{

			// Maximum is not exceeded, keep waiting

			if (iState == EStateNone)

			{

				iState = EStateWaiting;

				iTimer.After(iStatus, INDEXING_DELAY); // Wait 5 seconds before putting this to index

				SetActive();

			}

		}

	}

void CMessageMonitor::RunL()

	{

		// Index the current queue	

		while (iMessages.Count()>0)

		{

			TMessageRecord message = iMessages[0];

			iMessages.Remove(0);

			iMessagePlugin.MessageItemL(message.iMsvId, message.iAction, message.iFolderId);

		}

		// Everything is indexed no need to be waiting anymore

		iState = EStateNone;

	}

void CMessageMonitor::DoCancel()

	{

		iTimer.Cancel();

		iState = EStateNone;

	}

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

	{

		// TODO handle indexing errors here

		return KErrNone; // Don't panic

	}

// End Of File