/*

 * 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:  This class holds complete conversations for a contact 

 *                The class basically has two parts. One header which has

 *                Unread count, Unique Id, contact information and the body

 *                will have all conversations as list of conversation entries

 *

 */

#ifndef __C_CS_CONVERSATION_H

#define __C_CS_CONVERSATION_H

// SYSTEM INCLUDE FILES

#include <ccsdefs.h>

// FORWARD DECLARATIONS

class CCsConversationEntry;

class CCsConversationContact;

// CLASS DECLARATION

/** 

 * This class holds complete conversations for a contact 

 * The class basically has two parts. One header which has

 * Unread count, Unique Id, contact information and the body

 * will have all conversations as list of conversation entries

 */

class CCsConversation : public CBase

{

public:

    /**

     * Two phase construction

     */

    static CCsConversation* NewL();

    /**

     * Destructor

     */

    ~CCsConversation();

    /**

     * GetConversationId

     * This function shall return the conversation id

     * for this conversation

     * 

     * @return TCsConversationEntryID conversation id

     */

    TCsConversationEntryID GetConversationId() const;

    /**

     * SetConversationId

     * This function shall set conversation id

     * for this conversation

     * 

     * @param  aCsConversationEntryID Id to be set

     */

    void SetConversationId(TCsConversationEntryID aCsConversationEntryID);

    /**

     * GetDisplayName

     * Returns the display name of the Conversation

     * 

     * @return First name of conversation

     */

    HBufC* GetDisplayName() const;

    /**

     * GetContactId

     * Returns the contact Id of this conversation,

     * from which the contact information can be fetched.

     * 

     * @return - integer type contact Id

     */

    TInt32 GetContactId() const;

    /**

     * GetLatestEntryL

     * This function shall return the latest Conversation Entry

     * of this Conversation 

     * 

     * @return - latest conversation entry

     */

    CCsConversationEntry* GetLatestEntryL() const;

    /**

     * GetLatestUnreadEntryL

     * This function shall return the latest Unread Conversation Entry

     * of this Conversation

     *

     * @return - latest unread conversation entry

     */

    CCsConversationEntry* GetLatestUnreadEntryL() const;

    /**

     * GetEntryListL

     * This function shall return all the entries this conversation holds

     * 

     * @param aConversationEntryList, list of conversation entries

     */

    void

            GetEntryListL(

                          RPointerArray<CCsConversationEntry>* aConversationEntryList);

    /**

     * GetEntryListL

     * This function shall return all the entries this conversation holds

     * 

     * @param aConversationEntryList, list of conversation entries

	 * @param aStartIndex, start index for conversation entries.

	 * @param aEndIndex, end index for conversation entries.

     */

    void GetEntryListL(

            RPointerArray<CCsConversationEntry>* aConversationEntryList,

            TInt aStartIndex,

            TInt aEndIndex);

    /**

     * GetEntryL

     * This function returns the conversation entry at a specified index.

     * 

     * @param aIndex, entry list index

     */

    CCsConversationEntry* GetEntryL(TInt aIndex);

    /**

     * AddEntryL

     * Adds an entry to this conversation

     * 

     * @param aCsConversationEntry Entry to be added

     */

    void AddEntryL(CCsConversationEntry* aCsConversationEntry);

    /**

     * AddContactDetailsL

     * Adds contact details for the conversation

     * 

     * @param aContactId Contact id

     * @param aFirstName first name

     * @param aLastName last name

     */

    void AddContactDetailsL(

            TInt32 aContactId, 

            const HBufC* aDisplayName);

    /**

     * AddContactDetailsL

     * Over loaded method 

     * Add contact Number for the conversation

     * 

     * @param aContactNumber Contact number

     */

    /**

     * UpdateEntryL

     * Update the details of an conversation entry

     * and set event as new/update

     * 

     * @param aCsConversationEntry Conversation entry

     * @param aEvent event set to new/update

     */

    void UpdateEntryL(CCsConversationEntry* aCsConversationEntry,

                      TUint32& aEvent);

    /**

     * DeleteEntryL

     * Deletes the conversation entry

     * 

     * @param aindexDeletion index of the entry to be deleted

     */

    void DeleteEntryL(TInt aindexDeletion);

    /**

     * 

     * FindEntry

     * Finds the conversation entry in the conversation

     * 

     * @param aCsConversationEntry entry to be found

     * @return index of the entry if found else KErrNotFound

     */

    TInt FindEntry(CCsConversationEntry* aCsConversationEntry);

    /**

     *

     * FindUnreadEntry

     * Finds the unread conversation entry in the conversation

     *

     * @return index of the entry if found else KErrNotFound

     */

    TInt FindUnreadEntry() const;

    /**

     * GetEntryCount

     * Return the number of Conversation Entries in the Conversation

     * 

     * @return Count of Entries for this conversation

     */

    TInt GetEntryCount();

    /**

     * GetUnreadMessageCount

     * Returns the number of Unread Conversation Entries in the Conversation

     * 

     * @return the count of unread messsages

     */

    TUint16 GetUnreadMessageCount() const;

    /**

     * GetContact

     * Returns the contact details of this conversation

     * 

     * @return  Conversation Contact Object

     */

    CCsConversationContact* GetContact() const;

    /**

     * IsSpecialConversation

     * Returns whether the conversation is special conversation,

     * may it be Drafts/Bluetooth/IrDa

     * 

     * @return  TBool  ETrue  if special conversation else EFalse

     */

    TBool IsSpecialConversation();

    /**

     * Mark deleted

     * @param aDeleted ETrue if conversation is being deleted else it is EFalse

     */

    void MarkDeleted(TBool aDeleted);

    /**

     * Delete state of this conversation

     * 

     * @return ETrue if delete is ongoing for this conversation

     */

    TBool IsDeleted() const;

private:

    /**

     * Constructor

     */

    CCsConversation();

    /**

     * Second phase constructor

     */

    void ConstructL();

private:

    /**

     * iEntryList

     * This is array of actual conversation-entries

     */

    RPointerArray<CCsConversationEntry>* iEntryList;

    /**

     * iContact

     * This is contact details for this conversation

     * The details shall include name and phonebook contact link

     */

    CCsConversationContact* iContact;

    /**

     * iConversationID

     * Unique entry id for each conversation

     * This shall be used b/w clent server request

     */

    TCsConversationEntryID iConversationID;

    /**

     * iUnreadMessagesCount

     * Unread message count in the conversation

     * @attention Range of unread message count is 0 to 65535.

     */

    TUint16 iUnreadMessagesCount;

    /**

     * iDeleted

     * Enabled when delete is started for this conversation.

     */

    TBool iDeleted;

};

#endif // __C_CS_CONVERSATION_H