// Copyright (c) 2005-2009 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 "t_partialdownloadimapclient.h"

_LIT(KLoopbackAddress,"127.0.0.1");

void TDummySessionObserver::HandleSessionEventL(TMsvSessionEvent /*aEvent*/, TAny* /*aArg1*/, TAny* /*aArg2*/, TAny* /*aArg3*/)

	{

	}

CPartialDownLoadImapClient::CPartialDownLoadImapClient(MImapTestEventHandler& aObserver,TBool aFetchWholeMessage) 

: CActive(EPriorityStandard), iObserver(aObserver), iFetchWholeMessage(aFetchWholeMessage) 

	{

	CActiveScheduler::Add(this);

	}

CPartialDownLoadImapClient* CPartialDownLoadImapClient::NewL(MImapTestEventHandler& aObserver,TBool aFetchWholeMessage)

	{

	CPartialDownLoadImapClient* self = NewLC(aObserver,aFetchWholeMessage);

	CleanupStack::Pop(self);

	return self;

	}

CPartialDownLoadImapClient* CPartialDownLoadImapClient::NewLC(MImapTestEventHandler& aObserver,TBool aFetchWholeMessage)

	{

	CPartialDownLoadImapClient* self = new(ELeave) CPartialDownLoadImapClient(aObserver,aFetchWholeMessage);

	CleanupStack::PushL(self);

	self->ConstructL();

	return self;

	}

CPartialDownLoadImapClient::~CPartialDownLoadImapClient()

	{

	Cancel();

	delete iMsvOperation;	

	delete iSelection;

	delete iClientMtm;

	delete iClientRegistry;	

	delete iSession;

	delete iSessionObserver;

	delete iAccounts;

	}

TImapAccount CPartialDownLoadImapClient::GetImapAccount()

	{

	return iImapAccount;	

	}

void CPartialDownLoadImapClient::ConstructL()

	{

	//create an account

	iAccounts = CEmailAccounts::NewL();	

	CreateImapAccountL();

	// Session observer. Needed to create a session

	iSessionObserver = new (ELeave) TDummySessionObserver;

	// Session. Needed to create a client registry.

	iSession=CMsvSession::OpenSyncL(*iSessionObserver);

	// Client registry. Needed to get the MTM component

	iClientRegistry=CClientMtmRegistry::NewL(*iSession,KMsvDefaultTimeoutMicroSeconds32);

	//get the client mtm

	iClientMtm=iClientRegistry->NewMtmL(KUidMsgTypeIMAP4);	

	// Load the serial comms device drivers.  If this is not done,

	// connecting via NT-RAS returns KErrNotFound (-1).

	TInt driverErr;

	driverErr=User::LoadPhysicalDevice(PDD_NAME);

	if (driverErr!=KErrNone && driverErr!=KErrAlreadyExists)

		{

		User::Leave(driverErr);	

		}

	driverErr=User::LoadLogicalDevice(LDD_NAME);

	if (driverErr!=KErrNone && driverErr!=KErrAlreadyExists)

		{

		User::Leave(driverErr);	

		}

	}

void CPartialDownLoadImapClient::CreateImapAccountL()

	{

	//create objects and initialise with the defaults

	CImImap4Settings* imap4Settings=new(ELeave)CImImap4Settings;

	CleanupStack::PushL(imap4Settings);

	CImSmtpSettings* smtpSettings=new(ELeave)CImSmtpSettings;

	CleanupStack::PushL(smtpSettings);

	CImIAPPreferences* imapIap = CImIAPPreferences::NewLC();

	CImIAPPreferences* smtpIap = CImIAPPreferences::NewLC();

	iAccounts->PopulateDefaultImapSettingsL(*imap4Settings, *imapIap);

	iAccounts->PopulateDefaultSmtpSettingsL(*smtpSettings, *smtpIap);

	//override some of the defaults

	imap4Settings->SetPasswordL(_L8("davids"));

	imap4Settings->SetLoginNameL(_L8("davids"));

	imap4Settings->SetServerAddressL(KLoopbackAddress);

	imap4Settings->SetFolderPathL(_L8(""));

	imap4Settings->SetSynchronise(EUseLocal);

	imap4Settings->SetPartialMailOptionsL(ECumulative);

	imap4Settings->SetAttachmentSizeLimitL(2);

	//create the account

	iImapAccount = iAccounts->CreateImapAccountL(_L("TestAccount"), *imap4Settings, *imapIap, EFalse);

	TSmtpAccount smtpAccount;

	smtpAccount = iAccounts->CreateSmtpAccountL(iImapAccount, *smtpSettings, *smtpIap, EFalse);

	//clean up

	CleanupStack::PopAndDestroy(4,imap4Settings); 

	}

void CPartialDownLoadImapClient::StartL()

	{

	//if we are to collect the whole email then the next operation will be to fetch it

	iNextStep=(!iFetchWholeMessage? EDisconnect:EFetch);

	iSelection = new (ELeave) CMsvEntrySelection;

	TPckg<MMsvImapConnectionObserver*> param(this);

	//select the imap service entry

	iSelection->AppendL(iImapAccount.iImapService);

	//make the service entry the current context

	iClientMtm->SwitchCurrentEntryL(iImapAccount.iImapService);

	//sync the account

	iMsvOperation = iClientMtm->InvokeAsyncFunctionL(KIMAP4MTMConnectAndSyncCompleteAfterFullSync,*iSelection,param,iStatus);			

	SetActive();

	}

void CPartialDownLoadImapClient::DoCancel()

	{	

	__ASSERT_DEBUG(iMsvOperation!=NULL, User::Invariant());

	iMsvOperation->Cancel();

	}

void CPartialDownLoadImapClient::RunL()

	{

	User::LeaveIfError(iStatus.Int());

	TPckg<MMsvImapConnectionObserver*> param(this);

	TImImap4GetPartialMailInfo imapGetPartialMailInfo;

	imapGetPartialMailInfo.iPartialMailOptions=ECumulative;

	imapGetPartialMailInfo.iBodyTextSizeLimit = 2;	

	imapGetPartialMailInfo.iAttachmentSizeLimit = 2;

	TPckgBuf<TImImap4GetPartialMailInfo> package(imapGetPartialMailInfo);

	CMsvEntry* inboxEntry=NULL;

	CMsvEntry* imapService=NULL;

	TMsvSelectionOrdering ordering;

	switch(iNextStep)

		{

		//connect and sync	

		case EDisconnect:

			delete iMsvOperation;

			iMsvOperation=NULL;

			iMsvOperation = iClientMtm->InvokeAsyncFunctionL(KIMAP4MTMDisconnect,*iSelection,param,iStatus);	

			SetActive();

			iNextStep=EComplete;

			break;	

		case EFetch:

			// message in remote inbox					

			//create a CMsvEntry for the service entry

			imapService = CMsvEntry::NewL(*iSession, iImapAccount.iImapService,ordering);

			CleanupStack::PushL(imapService);

			//retrieve the inbox from the imap service entry

			CMsvEntrySelection* msvEntrySelection;

			msvEntrySelection=imapService->ChildrenL();

			CleanupStack::PushL(msvEntrySelection);

			//create a CMsvEntry for the inbox entry

			inboxEntry = CMsvEntry::NewL(*iSession, (*msvEntrySelection)[0],ordering);

			CleanupStack::PopAndDestroy(msvEntrySelection);

			CleanupStack::PushL(inboxEntry);

			//retrieve the message from the inboxEntry service entry

			iSelection=inboxEntry->ChildrenL();

			CleanupStack::PopAndDestroy(inboxEntry);

			CleanupStack::PopAndDestroy(imapService);

			delete iMsvOperation;

			iMsvOperation=NULL;

			iMsvOperation = iClientMtm->InvokeAsyncFunctionL(KIMAP4MTMPopulate, *iSelection, package, iStatus);	

			SetActive();

			iNextStep=EDisconnect;

			break;

		case EComplete:

			//inform the owning object that the process is complete

			iObserver.TestComplete(KErrNone);

			break;

		default:

			__ASSERT_DEBUG(0, User::Panic(_L("CPartialDownLoadImapClient unknown state"), KErrUnknown));

			break;			

		}

	}

TInt CPartialDownLoadImapClient::RunError(TInt aError)

	{

	iObserver.TestComplete(aError);

	return KErrNone;

	}

void CPartialDownLoadImapClient::HandleImapConnectionEvent(TImapConnectionEvent /*aConnectionState*/)

	{

	//this method does nothing

	}