/*

* Copyright (c) 2006-2007 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:  Iterator in the output of GetList

*

*/

#include "contactiterator.h"

#include "contactinterface.hrh"

/*

-----------------------------------------------------------------------------

    CContactIterator::~CContactIterator()

    Description    : Destructor

    Return values  : N/A

-----------------------------------------------------------------------------

*/

CContactIterator::~CContactIterator()

	{

	delete iContactIter; 

	}

/*

-----------------------------------------------------------------------------

    CContactIterator::NewL()

    Description    : Allocates memory

    Return values  : Returns class instance

-----------------------------------------------------------------------------

*/

CContactIterator* CContactIterator::NewL(CContactIter* aIter)

	{

	return (new (ELeave) CContactIterator(aIter));

	}

/*

-----------------------------------------------------------------------------

    CContactIterator::CContactIterator()

    Description    : Constructor- Initializes data

    Return values  : N/A

-----------------------------------------------------------------------------

*/

CContactIterator::CContactIterator(CContactIter* aIter)

	{

	iContactIter = aIter;

	iIndex = -1;

	}

/*

-----------------------------------------------------------------------------

    CContactIterator::Reset()

    Description    : Resets the cursor of the iterator to -1

    Return values  : N/A

-----------------------------------------------------------------------------

*/

void CContactIterator:: Reset()

	{

	iIndex=-1;

	}

/*

-----------------------------------------------------------------------------

    CContactIterator::GetContactIDUTF()

    Description    : Converts to UTF format

    Return values  : N/A

-----------------------------------------------------------------------------

*/

void CContactIterator :: ContactIDToUTF(HBufC* aContactID)

    {

    TInt len = aContactID->Length();

    TUint16* ptr16 = const_cast<TUint16*> (aContactID->Des().Ptr());

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

        {

        ptr16[i] = ptr16[i] | 0xE000;    

        }

    }

/*

-----------------------------------------------------------------------------

    CContactIterator::NextL()

    Description    : returns in outparam, the next item in the list that iterator

    				 is iterating on

    Return values  : ETrue/EFalse based on success or failure

-----------------------------------------------------------------------------

*/  

TBool CContactIterator::NextL(TLiwVariant& aEntry)

	{

	CLiwMap* pContactMap = NULL;

	TBool retVal = EFalse;

	//If iterator is iterating over contacts

	if(iContactIter->iIndicator == EContacts)

		{

	    CSingleContact* contact = NULL;

	    HBufC8* cntId = NULL ;

	    CSingleContactField* field =  NULL;

		HBufC* cntIdUnicode = NULL;

		//Get the next contact on the list

		iContactIter->NextL(contact, cntId);

		if(contact)

			{

			TPtrC8 fieldName;

        	TPtrC  fieldLabel;

        	TPtrC  fieldValue;

        	TTime  fieldTime;

        	TBool date = EFalse;

        	CleanupStack :: PushL(contact);        	        	

			pContactMap = CLiwDefaultMap::NewL();

			CleanupStack :: PushL(pContactMap);	

			cntIdUnicode = HBufC::NewL(cntId->Length());

	    	CleanupStack :: PushL(cntIdUnicode);

	    	cntIdUnicode->Des().Copy(*cntId);

	    	delete cntId;

	    	cntId = NULL;

	    	ContactIDToUTF(cntIdUnicode);			

			pContactMap->InsertL(KContactId,TLiwVariant(*cntIdUnicode));

			CleanupStack :: Pop(cntIdUnicode);						

			TLiwVariant val;

 		    CleanupStack::PushL( TCleanupItem( TLiwVariant::VariantCleanup , &val) );

			TInt fieldCount = contact->FieldCount();

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

				{

			    CLiwMap* pFieldLinkedMap = CLiwDefaultMap::NewL();

				CleanupClosePushL(*pFieldLinkedMap);

				//Get the next field

				field = contact->FieldAt(i);

				//Get field data and populate the map structure

				field->GetFieldDataL(fieldName, fieldLabel, fieldValue);

				if((fieldName.Compare(KDate) == 0) || (fieldName.Compare(KAnniversary) == 0))

					{

					date = ETrue;

					fieldTime = field->GetDateTime();

					}

				if(EFalse != pContactMap->FindL(fieldName,val))

					{

					//In case there are multiple values for a given Fieldkey, add "Next" key to the map.

					// and create a linked list of label-value pairs for a given key

					pFieldLinkedMap->InsertL(KFieldLabel,TLiwVariant(fieldLabel));

					if(date)

						{

						pFieldLinkedMap->InsertL(KFieldValue,TLiwVariant(fieldTime));				

						}

					else

						{

						pFieldLinkedMap->InsertL(KFieldValue,TLiwVariant(fieldValue));				

						}

					pFieldLinkedMap->InsertL(KFieldNext,TLiwVariant(val));

					}

				else

					{

					//In case its the first time the FieldKey is being read, just have label-value pair inserted

					pFieldLinkedMap->InsertL(KFieldLabel,TLiwVariant(fieldLabel));

					if(date)

						{

						date = EFalse;

						pFieldLinkedMap->InsertL(KFieldValue,TLiwVariant(fieldTime));				

						}

					else

						{

						pFieldLinkedMap->InsertL(KFieldValue,TLiwVariant(fieldValue));				

						}

					}

				//For the given Fieldkey insert the label-value pair

				pContactMap->InsertL(fieldName, TLiwVariant(pFieldLinkedMap));

		        CleanupStack::PopAndDestroy(pFieldLinkedMap);

				}

			CleanupStack::Pop(&val);

			val.Reset();

			CleanupStack::Pop(pContactMap);												               

			CleanupStack::PopAndDestroy(contact);			

			retVal = ETrue;

			}

		else

    		{

    		delete cntId;    

    		}

		}

	//In case the iterator is iterating over a list of groups

	else if(iContactIter->iIndicator == EGroups)

		{

		CSingleContact* contact;

	    HBufC8* grpID;

	    CSingleContactField* field;

	    HBufC* grpUnicode = NULL;	

		//Get the next group

		iContactIter->NextL(contact, grpID);

		if(contact)

			{

			CleanupStack::PushL(contact);			

	    	TPtrC groupLabel;

			RPointerArray<TDesC8> array;			

			CleanupClosePushL(array);

			pContactMap = CLiwDefaultMap::NewL();			

			CleanupStack::PushL(pContactMap);

		    grpUnicode = HBufC::NewL(grpID->Length());

	    	grpUnicode->Des().Copy(*grpID);

	    	delete grpID;

	    	grpID = NULL;

	    	ContactIDToUTF(grpUnicode);

	    	CleanupStack::PushL(grpUnicode);	

			//Insert the contact id

			pContactMap->InsertL(KGroupId,TLiwVariant(*grpUnicode));

			CleanupStack::Pop(grpUnicode);            

			field = contact->FieldAt(0);

			//Get the field data of the group

			field->GetFieldDataL(groupLabel, array);

			//Insert group label

			pContactMap->InsertL(KGroupLabel,TLiwVariant(groupLabel));

			CLiwList* pContentsList = CLiwDefaultList::NewL();

			CleanupClosePushL(*pContentsList); 

			TInt count = array.Count();

			if(count)

			{

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

				{

				HBufC* cntidUni = HBufC:: NewL(array[i]->Length());

			    cntidUni->Des().Copy(*array[i]);

			    CleanupStack::PushL(cntidUni);

			    ContactIDToUTF(cntidUni);	

				pContentsList->AppendL(*cntidUni);

				CleanupStack::Pop(cntidUni);								

				}

			//Insert the list of contacts for the given group

			pContactMap->InsertL(KContents,TLiwVariant(pContentsList));

			}

			CleanupStack::PopAndDestroy(pContentsList);

			CleanupStack :: Pop(pContactMap);

			CleanupStack :: PopAndDestroy();				

			CleanupStack :: PopAndDestroy(contact);

			retVal = ETrue;

			}

		else

    		{

    		delete grpID;    

    		}

		}

	//In case iterator is iterating over list of databases

	else if(iContactIter->iIndicator == EDatabase)

		{

		TPtrC DbName;

		//Get the next database name

		iContactIter->NextL(DbName);

		if(DbName.Compare(KNullDesC) != 0)

			{

			pContactMap = CLiwDefaultMap::NewL();	

			CleanupStack::PushL(pContactMap);

			//Insert DbName into the map

			pContactMap->InsertL(KDBUri,TLiwVariant(DbName));

			CleanupStack::Pop(pContactMap);

			retVal = ETrue;

			}

		}

	if(pContactMap)

    	{

		CleanupClosePushL(*pContactMap);

    	aEntry.SetL(pContactMap);

    	CleanupStack::PopAndDestroy(pContactMap);

    	}	

	return retVal;

	}