/*
* 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 "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:  Predictive Contact Search Algorithm 1 main class
*
*/


#ifndef C_PCS_ALGORITHM_1_UTILS
#define C_PCS_ALGORITHM_1_UTILS

// INCLUDE FILES

#include <e32hashtab.h>

#include "CPsData.h"
#include "CPsQuery.h"

// FORWARD DECLARATION

typedef RPointerArray<CPsData> CPSDATA_R_PTR_ARRAY;

// CLASS DECLARATION
class CPcsAlgorithm1Utils : public CBase
{
	public: 

		/**
		 * Merge function to merge the search results from different arrays
		 * into a single array in sorted order.
		 * It merges all the result sets that are there in iSearchResultsArr
         * into single result set. This is a wrapper funciton implemented that
         * works for all type of key board modes
		 */
		static void FormCompleteSearchResultsL(RPointerArray<CPSDATA_R_PTR_ARRAY>& aSearchResultsArr, 
										       RPointerArray<CPsData>& SearchResults);

		/**
		 * Compare by length.
		 */
		static TBool CompareByLength(const HBufC& aFirst, const HBufC& aSecond);

		/**
		 * Compare strings exactly case sensitively.
		 */
		static TBool CompareExact(const TDesC& aFirst, const TDesC& aSecond);

		/**
		 * Compare strings with collate rules depending on locale.
		 */
		static TBool CompareCollate(const TDesC& aFirst, const TDesC& aSecond);

		/**
		 * Compare for keys and strings:
		 * - Case sensitive compare for keys,
		 * - Case insensitive and language dependent compare for Contact Data and Query.
		 */
		static TBool MyCompareKeyAndString(const TDesC& aContactString,
		                                   const TDesC& aQueryAsString,
		                                   CPsQuery& aPsQuery);

		/**
         * Case Sensitive compare for keys
         */
		static TBool MyCompareK(const TDesC& aLeft, const TDesC& aRight, CPsQuery& aPsQuery);

		/**
         * Customized CompareC         
         */					
        static TInt MyCompareC(const TDesC& aLeft, const TDesC& aRight); 					       
		
        
        /**
         * TLinearOrder rule for comparison of data objects
         */
        static TInt CompareDataBySortOrderL(const CPsData& aObject1,
                                           const CPsData& aObject2);

        /**
         * Trim off all white spaces and special chars
         */                                   
        static void MyTrim(TDes& aString);
        
        
        /**
         * Check if the input URI is of contact search in a group template form
         */                                   
        static TBool IsGroupUri(TDesC& aURI);
                                    
};
#endif // C_PCS_ALGORITHM_1_UTILS