/*

* 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:  Defination of class CMessagingInterface

*

*/

#ifndef __MESSAGINGINTERFACE_H

#define __MESSAGINGINTERFACE_H

#include <LiwCommon.h>

#include <LiwServiceIfBase.h>

#include <LiwBufferExtension.h>

#include "messageheader.h" 

class CMessagingService;

class TInputValidator;

/**

 * This class provides the Messaging SAPI interface to LIW Framework 

*/

class CMessagingInterface : public CBase, public MLiwInterface

	{

	public:

	    /**

	     * Two-phased constructor.

	     * @return CMessagingInterface* 

	    */

		static CMessagingInterface* NewL();

	    /**

	    * Destructor.

	    */

		virtual ~CMessagingInterface();

	private:

		/**

	     * Constructor

	    */

		CMessagingInterface();

		/**

	     * Symbian Constructor

	    */

		void ConstructL();

		/*

		 * Function which checks the type of the source and leaves upon  

		 * setting the error message accordingly if the aLeaveFlag is set and

		 * returns ETrue in case of success, EFalse in case of failure and not leaving

		 *

		 * @param aSource

		 * @param aLeaveFlag

		 * @param aExpectedType

		 * @param aCmdName Command Name

	     * @param aParameter Parameter Name

	     * @param aMessage Error message

		 *

		 * @return TBool

		 */

		TBool CMessagingInterface::CheckInputTypeL( const TLiwVariant* aSource, 

                                            TBool aLeaveFlag, 

                                            LIW::TVariantTypeId aExpectedtype, 

                                            const TDesC8& aCmdName, 

											const TDesC8& aParameter,

											const TDesC& aMessage );

	    /**

	     * Appends error message

	     * @param aCmdName Command Name

	     * @param aParameter Parameter Name

	     * @param aMessage Error message

		 * @param aMissingOrIncorrectOrNone 0 for none or 1 for missing or 2 for incorrect

		 * For missing it leave with errorcode SErrMissingArgument

		 * For incorrect it leaves with errorcode KErrArgument

		 * For none it wont leave

		 *

	     * @return void

	    */

		void AppendErrorMessageL( const TDesC8& aCmdName, 

								  const TDesC8& aParameter, 

								  const TDesC& aMessage,

								  TInt aNoneOrMissingOrIncorrect );

		/**

	     * Function called from sync APIs to check whether Async set up is done 

	     * if yes then leaves

	     * 

	     * @param aCmdOptions Command option

	     * @param aCallback Callback object pointer

	     * @param aCmdName Command Name

	     * @param aMessage Error message

		 *

	     * @return void

	    */						  

		void LeaveIfAsynchronousL( TUint aCmdOptions,

	 				          	   MLiwNotifyCallback* aCallback,

					          	   const TDesC8& aCmdName,  

								   const TDesC& aMessage );								  

	// MLiwInterface member functions

	public:

		/**

	     * Executes the SAPI as per params

	     * @param aCmdName Command name defining which operation is to be performed

	     * @param aInParamList  Input param list

	     * @param aOutParamList Output list

	     * @param aCmdOptions Command option

	     * @param aCallback Callback object pointer

	    */

		virtual void ExecuteCmdL( const TDesC8& aCmdName,

		                       const CLiwGenericParamList& aInParamList,

		                       CLiwGenericParamList& aOutParamList,

		                       TUint aCmdOptions = 0,

		                       MLiwNotifyCallback* aCallback = 0 );

		/**

	     * Closes the interface 

	    */

		virtual void Close();

	private:

		/**

	     * Issues SendMessage request to Messaging Service

	     * @param aInParamList  Input param list

	     * @param aOutParamList Output list

	     * @param aCmdOptions Command option

	     * @param aCallback Callback object pointer

	    */

		void SendMessageL( const CLiwGenericParamList& aInParamList,

					                       CLiwGenericParamList& aOutParamList,

					                       TUint aCmdOptions,

					                       MLiwNotifyCallback* aCallback );

		/**

	     * Cancels the async operation issued earlier

	     * @param aCmdName Command name i.e.., Cancel

	     * @param aInParamList  Input param list

	     * @param aOutParamList Output list

	     * @param aCmdOptions Command option

	    */			                       

		void CancelAsyncL( const TDesC8& aCmdName,

										const CLiwGenericParamList& aInParamList,

				                       	CLiwGenericParamList& aOutParamList,

				                       	TUint aCmdOptions);			                       

		/**

	     * Issues GetList request to Messaging Service

	     * @param aInParamList  Input param list

	     * @param aOutParamList Output list

	     * @param aCmdOptions Command option

	     * @param aCallback Callback object pointer

	    */

		void GetHeaderListL( const CLiwGenericParamList& aInParamList,

					                       CLiwGenericParamList& aOutParamList,

					                       TUint aCmdOptions,

					                       MLiwNotifyCallback* aCallback );

		/**

	     * Issues New Message notification request to Messaging Service

	     * @param aInParamList  Input param list

	     * @param aOutParamList Output list

	     * @param aCmdOptions Command option

	     * @param aCallback Callback object pointer

	    */

		void RequestNotificationL( const CLiwGenericParamList& aInParamList,

					                       CLiwGenericParamList& aOutParamList,

					                       TUint aCmdOptions,

					                       MLiwNotifyCallback* aCallback );

		/**

	     * Cancels New Message notification Messaging Service

	     * @param aInParamList  Input param list

	     * @param aOutParamList Output list

	     * @param aCmdOptions Command option

	     * @param aCallback Callback object pointer

	    */

		void CancelNotificationL( const CLiwGenericParamList& aInParamList,

					                       CLiwGenericParamList& aOutParamList,

					                       TUint aCmdOptions,

					                       MLiwNotifyCallback* aCallback );

		/**

	     * Issues request for Deleteing Message to Messaging Service

	     * @param aInParamList  Input param list

	     * @param aOutParamList Output list

	     * @param aCmdOptions Command option

	     * @param aCallback Callback object pointer

	    */

		void DeleteMessageL( const CLiwGenericParamList& aInParamList,

					                       CLiwGenericParamList& aOutParamList,

					                       TUint aCmdOptions,

					                       MLiwNotifyCallback* aCallback );

		/**

	     * Issues request for Changing message status to Messaging Service

	     * @param aInParamList  Input param list

	     * @param aOutParamList Output list

	     * @param aCmdOptions Command option

	     * @param aCallback Callback object pointer

	    */

		void ChangeStatusL( const CLiwGenericParamList& aInParamList,

					                       CLiwGenericParamList& aOutParamList,

					                       TUint aCmdOptions,

					                       MLiwNotifyCallback* aCallback );

		/**

	     * Gets the param list for sending message form the inputparam list

	     * @param aInParamList A CLiwGenericParamList containing required input params

	     * @return TSendMessageParams* A send message params structure

	    */

		CSendMessageParams* GetSendParametersL( const CLiwGenericParamList& aInParamList );

  	  /**

	     * Gets the filter parameters, sorting option from the inputparam list

	     * @param aInParamList A CLiwGenericParamList containing required input parameters

	     * @return CFilterParamInfo* Filter parameter structure

	    */

		CFilterParamInfo* GetFilterParametersL( const CLiwGenericParamList& aInParamList, TBool aIndexBaseInp );

  	  /**

	     * Gets the message id from liw input parameter 

	     * @param aInParamList input param list

	     * @param aMessageId Output parameter containing message id

	     * @return TInt Error code

	    */

		void GetMessageIdL( const CLiwGenericParamList& aInParamList, TMsvId& aMessageId,

							const TDesC8& aCmdName  );

  	  /**

	     * Gets the transaction id from liw input parameter 

	     * @param aInParamList input param list

	     * @param aTransactionId Output param containing transaction id

	     * @return TInt Error code

	    */

		void GetTransactionIdL( const CLiwGenericParamList& aInParamList, 

								TInt32& aTransactionId,

								const TDesC8& aCmdName  );

  	  /**

	     * Gets the status flag and its value

	     * @param aInParamList input param list

	     * @param aStatusFlag Status flag

	     * @param aFlagValue Flag value

	     * @return TInt Error code

	    */

		void GetStatusFlagAndValueL( const CLiwGenericParamList&  aInParamList, 

									 TMessageStatusFlag& aStatusFlag, 

									 TBool& aFlagValue,

							  	     const TDesC8& aCmdName );

  	  /**

	     * Gets the notification type

	     * @param aInParamList input param list

	     * @param aNotificationType Notification type

	     * @return void

	    */													

		void GetNotificationTypeL( const CLiwGenericParamList& aInParamList, 

								   TNotificationType& aNotificationType,

								   const TDesC8& aCmdName );

  	  /**

	     * Gives the sort type

	     * @param aSortField Sort Field as input string

	     * @param aSortOrder Sort type as input string

	     * @return TMsvSorting Sort type

	    */		

		TMsvSorting SortType( const TDesC& aSortField, const TDesC& aSortOrder );

	private:

	  	/**

	     * CMessagingService  class pointer

	    */		

		CMessagingService* iMsgService;

		/**

	     * iErrorString  Heap Descriptor used to store the error message 

	     * in case of error, initially set to NULL

	    */

		HBufC* iErrorMessage;

	};

/**

 * Callback class for asynchronous SAPI whose result is Integer

*/		

class CMsgCallbackInt : public CMsgCallbackBase

	{

	private:

	  	/**

	     * Constructor

	    */		

		CMsgCallbackInt();

	public:

	  	/**

	     * Two-phase Constructor

	     * @return   CMsgCallbackBase* 

	    */		

		static CMsgCallbackBase* NewL();

	  	/**

	     * Gives the result of asynchronous SAPI

	     * @param aErrCode errcode

	     * @param aResult Result

	     * @return   void

	    */		

		void NotifyResultL(TInt aErrCode, TAny* aResult);

	};

/**

 * Callback class for asynchronous SAPI message header

*/	

class CMsgCallbackHeader : public CMsgCallbackBase

	{

	public:

	  	/**

	     * Two-phase Constructor

	     * @return   CMsgCallbackHeader* 

	    */		

		static CMsgCallbackHeader* NewL();

	  	/**

	     * Destructor

	    */		

		virtual ~CMsgCallbackHeader();

	private:

	  	/**

	     * Constructor

	    */		

 		CMsgCallbackHeader();

	public:

	  	/**

	     * Gives the result of asynchronous SAPI

	     * @param aErrCode errcode

	     * @param aResult Result

	     * @return   void

	    */

		virtual void NotifyResultL(TInt aErrCode, TAny* aResult);

	};

/**

* Implemenation of abstract interface to iterate over the collection of message IDs.

*

* @see CLiwIterable

*

*/

class CIterableIdList : public CLiwIterable	

	{

	public:

	  	/**

	     * Two-phase Constructor

	     * @param aList list to be iterated 

	     * @return new CIterableIdList object

	    */	

		static CIterableIdList* NewL(CMsvEntrySelection* aList, 

											CMessagingService* aMsgService, 

											CFilterParamInfo* aFilter );

		/**

		* Resets the iterator. 

		*

		*/

		void Reset();

		/**

		* Iterates over the collection entries to fetch the next data element.

		*

		* @param aEntry contains the next data element and its corresponding data type

		*

		* @return false if there are no more data elements to be fetched;

		* true otherwise

		* 

		*/

		TBool NextL(TLiwVariant&);

	    /**

	    * Destructor.

	    */

		~CIterableIdList();

	private:

	    /**

	    * Constructor

	     * @param aList list to be iterated 

	     * @return void

	    */

		CIterableIdList(CMsvEntrySelection* aList, 

											CMessagingService* aMsgService, 

											CFilterParamInfo* aFilter );

	private:

	  	/**

	     * CMsvEntrySelection  class pointer

	    */		

		CMsvEntrySelection* 	iList;

	  	/**

	     * CMessagingService  class pointer

	    */		

		CMessagingService* 		iMsgService;

	  	/**

	     * CFilterParamInfo  class pointer

	    */		

		CFilterParamInfo*		iFilter; 

	  	/**

	     * Index on list

	    */		

		TInt					iIndex;	

	};

/**

* An associative array or dictionary class. The collection

* key entries are of type string (Descriptor type) and their  

* associated values can be an variant type.

* 

*  \c CLiwDefaultMap provides default map implementation to

   *  <ul>

   *     <li>insert a key-value pair</li>

   *     <li>find a stored value based on a key</li>

   *     <li>get a key based on an index</li>

   *     <li>remove a key-value pair based on a key</li>

   *		 <li>get the total number of stored key-value pairs</li>

   *   </ul>

* 

*

* @see CLiwContainer

* @see TLiwVariant

* @see CLiwMap

*

*/

class CLiwMessagingMap : public CLiwMap

{

 public:

  /*

   * Creates an instance of \c CLiwMessagingMap

   *

   * @return an instance of \c CLiwMessagingMap

   */

   static CLiwMessagingMap* NewL( CMessagingService* aMsgService );

  /**

    * Inserts a key-value pair element to the map collection. If

    * the specified key already exists, it will be removed from

    * the collection and the new key-value pair will be added to the

    * map.

    *  

    * @param aKey the key to be stored

    * @param aValue the value associated with the key to be stored

    */

  void InsertL(const TDesC8& aKey, const TLiwVariant& aValue);

  /**

    * Finds a value stored in the map collection based on the key.

    *  

    * @param aKey the key to be searched

    * @param aFndValue the value associated with the found key

    *

    * @return false if there is no key stored; true otherwise

   */

  TBool FindL(const TDesC8& aKey, TLiwVariant& aValue) const;

  /**

    * Returns the number of key-value pair stored in the map collection.

    *  

    * @return the number of key-value pair stored in the map collection

   */

  TInt Count() const;

  /**

    * Returns the key stored at a specified index. 

    *  

    * @param aIndex the index of the key to be found

    * @param aFndKey the key found at the passed index

    *

    * @return true if a key-value entry is found at the passed index;

    * false otherwise

   */

  TBool AtL(TInt aIndex, TDes8& aFndKey) const;

  /**

    * Removes a key from the map collection.

    *  

    * @param aKey the key to be removed from the map

   */

  void Remove(const TDesC8& aKey);

 private:

 	/*

 	 * Constructor

 	 */

  CLiwMessagingMap(CLiwGenericParamList* aMap, CMessagingService* aMsgService) 

  : iMap(aMap), iMsgService(aMsgService)

  	 {}