/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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 "contactiter.h"

#include "contactretrieveobserver.h"

#include "contactservice.hrh"

#include "getliststorelistobserver.h"

#include <CVPbkContactStoreUriArray.h>

#include <CVPbkContactManager.h>

#include <MVPbkContactStoreList.h>

#include <MVPbkContactOperationBase.h>

#include <TVPbkContactStoreUriPtr.h>

#include <MVPbkContactLink.h>

#include <MVPbkContactStoreProperties.h>

//Initialize the class variable with the result of ReadContactL

void CContactIter::SetContactFetchResult(MVPbkStoreContact* aContact)

    {

	iContact = aContact;

    }		

/**

  * Set the class variables with the parameters sent from CContactViewObserver

  */	

TInt CContactIter::SetParams(MVPbkContactLinkArray * aContactLinkArray,

						 const TDesC& aStoreUri,

						 TOrder aSortOrder,

						 TInt aTransId,

						 Ttype aIndicator,

						 CContactService* aContactService)

    {

	TInt retVal = KErrNone;

	iContactLinkArray =aContactLinkArray;

	iCount = aContactLinkArray->Count();

	iStoreUri = &aStoreUri;

	iSortOrder = aSortOrder;

	iTransId = aTransId;

	iIndicator = aIndicator;

	iContactService = aContactService;

	TRAPD(error, SetupEnvironL());

	if(error != KErrNone)

		{

		retVal = error;

		}	

	return retVal;

    }

void CContactIter::SetupEnvironL()

    {

	if((iIndicator == EContacts) && (iContactLinkArray->Count() == 1))

	{

	iStoreUri = &(iContactLinkArray->At(0).ContactStore().StoreProperties().Uri().UriDes());

	}

	iSyncIter = CContactSyncIter::NewL();

	SetupDBL();

    }

/*

 * NextL Function gets the next contact/group in the linkarray.

 * Based on the Ascending/Desending order chosen the links are read in that order

 */

EXPORT_C void CContactIter::NextL(CSingleContact*& aSingleContact, HBufC8*& aContactID )

    {

	MVPbkContactLink* link = NULL;

	// Create the instance of CContactSyncIter class ,

	// which has methods for making the iterator synchronous

	if((iCount>=1) && (iCursor < (iCount-1)) && (iSortOrder == EAsc))

		{

		//Setup the Database before reading

     	CContactRetrieveObserver* newObserver = CContactRetrieveObserver::NewL(this);

		CleanupStack::PushL(newObserver);

		// Reads the Contact/Group info

		ReadContactL(((*iContactLinkArray)[++iCursor]), *newObserver);	

		//  for the request to be complete

		iSyncIter->Wait();

		link = const_cast<MVPbkContactLink*>(&((*iContactLinkArray)[iCursor]));

		//Set the output param

		aSingleContact = CSingleContact::NewL(iContact, iIndicator);

		//Intialiaze the ContactId info using PackLC() method

		aContactID = link->PackLC();

		aSingleContact->SetContactIdL(*aContactID);

		CleanupStack::Pop(aContactID);

		CleanupStack::Pop(newObserver);

		}

	else if(iSortOrder == EDesc) 

		{	   

		if(iCursor == -1)

			{

			iCursor = iCount;

			}

		if(iCursor != 0)

			{

			//Setup the Database before reading

			CContactRetrieveObserver* newObserver = CContactRetrieveObserver::NewL(this);

			CleanupStack::PushL(newObserver);

			// Reads the Contact/Group info

			ReadContactL(((*iContactLinkArray)[--iCursor]), *newObserver);	

			//  for the request to be complete

			iSyncIter->Wait();

			link = const_cast<MVPbkContactLink*>(&((*iContactLinkArray)[iCursor]));

			//Set the output param

			aSingleContact = CSingleContact::NewL(iContact, iIndicator);

			//Intialiaze the ContactId info using PackLC() method

			aContactID = link->PackLC();

			aSingleContact->SetContactIdL(*aContactID);

			CleanupStack::Pop(aContactID);

			CleanupStack::Pop(newObserver);

			}

		else

			{		

			aSingleContact = NULL;

			aContactID = KNullDesC8().Alloc();

			}

		}

	else

		{	

		aSingleContact = NULL;

		aContactID = KNullDesC8().Alloc();

		}

    }

//Method for reading the next Database name in the list of names

EXPORT_C void CContactIter::NextL(TPtrC& aDbs)

    {

	if(iDbArray.Count())

		{

		if((iCount>=1) && (iCursor < (iCount-1)))

			{

			aDbs.Set(*(iDbArray[++iCursor]));

			}

		else

			{

			aDbs.Set(KNullDesC);	

			}

		}

	else

		{

		aDbs.Set(KNullDesC);	

		}		

    }

//Initialises the cursor

EXPORT_C void CContactIter::Reset()

    {

	iCursor = -1;

    }

//Sets the array of databases and the number of them

void CContactIter::SetDbNamePtr(RPointerArray<HBufC>& aArray, TInt aCnt)

    {

	iIndicator = EDatabase;

	iDbArray= aArray;

	iCount = aCnt;

    }

//Sets up the database before any operation could be performed over it.

void CContactIter::SetupDBL()

{

    CVPbkContactStoreUriArray* uriList = CVPbkContactStoreUriArray::NewLC();

    uriList->AppendL( TVPbkContactStoreUriPtr( *iStoreUri ) );

    User::LeaveIfError( iFs.Connect() );

    iContactManager = CVPbkContactManager::NewL( *uriList ,&iFs );

    MVPbkContactStoreList& stores = iContactManager->ContactStoresL();

    iContactStore = &( stores.At( (stores.Count())-1 ) );

    TDesC16* aSearchVal = NULL;

    TDesC8* cntId = NULL;

    CContactIter* self = this;

	iGetListStoreListObserver = CGetListStoreListObserver::NewL(*iStoreUri,

																	*cntId,

																	*aSearchVal ,

													           		NULL, 

																	ENULL,

																	NULL,

																	iContactService,

																	self,

																	EOthers,

																	iTransId,

																	NULL,

																	EGetList) ;

    if(iContactStore)

    {

    	iContactStore->OpenL( *iGetListStoreListObserver  );    	

    }

    //Making opening Database Synchronous

	iSyncIter->Wait();

   CleanupStack::PopAndDestroy(uriList);

}

// Method that will go and fetch individual contacts

void CContactIter::ReadContactL( const MVPbkContactLink& aLink, CContactRetrieveObserver& aObserver )

    {

	MVPbkContactOperationBase* ret = iContactManager->RetrieveContactL(aLink,aObserver);

    }    

CContactIter::CContactIter()

    {

    iCursor = iCount = -1;

    iContactLinkArray=NULL;

    iContactManager = NULL; 	

    }	

EXPORT_C CContactIter* CContactIter::NewL()

    {

	return new (ELeave) CContactIter();

    }

CContactIter::~CContactIter()

    {

    if(iGetListStoreListObserver)

	    {

	    delete iGetListStoreListObserver;

	    }

    if(iContactLinkArray)

		{

		delete iContactLinkArray;	

		}

    iFs.Close();

    if(iContactManager)

	    {

	    delete iContactManager;   

	    iContactManager =NULL;	

	    }	

    if(iSyncIter)

    {

       	delete iSyncIter;

		iSyncIter = NULL;

    }

    iDbArray.ResetAndDestroy();

    }