/*

 * 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:  CS Conversation Cache class. 

 *                This cache all the conversation from plugins 

 *                and responds to the client request

 *

 */

// INCLUDE FILES

// SYSTEM INCLUDE FILES

#include <ccsclientconversation.h>

#include <ccsconversationentry.h>

#include <ccsdefs.h>

#include <telconfigcrkeys.h>        // KCRUidTelephonyConfiguration

#include <centralrepository.h>

#include <xqconversions.h>

// USER INCLUDE FILES

#include "ccsconversationcache.h"

#include "ccsconversationcachehelper.h"

#include "ccsconversationcontact.h"

#include "ccsconversation.h"

#include "ccscontactsmanager.h"

#include "ccscontactsresolver.h"

#include "ccsconversationevent.h"

#include "ccsserver.h"

#include "ccsdebug.h"

// ============================== MEMBER FUNCTIONS ============================

// ----------------------------------------------------------------------------

// CCsConversationCache::NewL

// Two Phase Construction

// ----------------------------------------------------------------------------

CCsConversationCache*

CCsConversationCache::NewL(CCsContactsManager* aContactManager,

                           CCsServer* aCsServer)

{

    PRINT ( _L("Enter CCsConversationCache::NewL") );

    CCsConversationCache* self =

            new (ELeave) CCsConversationCache(aContactManager, aCsServer);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    PRINT ( _L("End CCsConversationCache::NewL") );

    return self;

}

// ----------------------------------------------------------------------------

// CCsConversationCache::CCsConversationCache

// Construtor

// ----------------------------------------------------------------------------

CCsConversationCache::CCsConversationCache(CCsContactsManager* aContactManager,

                                           CCsServer* aCsServer) :

    iCsServer(aCsServer), iContactsManager(aContactManager)

{

}

// ----------------------------------------------------------------------------

// CCsConversationCache::ConstructL

// Second phase constructor

// ----------------------------------------------------------------------------

void CCsConversationCache::ConstructL()

{

    PRINT ( _L("Enter CCsConversationCache::ConstructL") );

    // Register for events from contact manager

    iContactsManager->addObserver(this);

    // initialize the main cache entries

    iConversationList = new (ELeave) RPointerArray<CCsConversation> ();

    // initialize the class helper class

    iConversationCacheHelper = CCsConversationCacheHelper::NewL(this);

    iMatchDigitCount = KDefaultGsmNumberMatchLength;

    // Read the amount of digits to be used in contact matching

    // The key is owned by PhoneApp

    CRepository* repository = CRepository::NewLC(KCRUidTelConfiguration);

    if (repository->Get(KTelMatchDigits, iMatchDigitCount) == KErrNone)

    {

        // Min is 7

        iMatchDigitCount = Max(iMatchDigitCount, KDefaultGsmNumberMatchLength);

    }

    CleanupStack::PopAndDestroy(); // repository

    PRINT ( _L("End CCsConversationCache::ConstructL") );

}

// ----------------------------------------------------------------------------

// CCsConversationCache::CCsConversationCache

// Destructor

// ----------------------------------------------------------------------------

CCsConversationCache::~CCsConversationCache()

{

    PRINT ( _L("Enter CCsConversationCache::~CCsConversationCache") );

    if (iContactsManager)

    {

        iContactsManager->removeObserver(this);

    }

    // delete the set of all conversations

    if (iConversationList)

    {

        iConversationList->ResetAndDestroy();

        iConversationList->Close();

        delete iConversationList;

        iConversationList = NULL;

    }

    if (iConversationCacheHelper)

    {

        delete iConversationCacheHelper;

        iConversationCacheHelper = NULL;

    }

    PRINT ( _L("End CCsConversationCache::~CCsConversationCache") );

}

// ----------------------------------------------------------------------------

// CCsConversationCache::GetConversationListL

// Get Conversation list with contact details

// for all stored conversations

// This API can be used to prepare conversation list

// ----------------------------------------------------------------------------

void CCsConversationCache::GetConversationListL(RPointerArray<

        CCsClientConversation>* aClientConversationList)

{

    TInt totalConversation = iConversationList->Count();

    // Write the contact display names

    for (TInt loop = 0; loop < totalConversation; loop++)

    {

        CCsConversation* conversation =

                static_cast<CCsConversation*> ( (*iConversationList)[loop]);

        // The check is needed to avoid crash while internalizing resulting

        // from the row added for unknown drafts

        if (conversation->GetEntryCount())

        {

            CCsClientConversation* clientConversation =

                    CreateClientConvLC(conversation,

                                       conversation->GetLatestEntryL());

            aClientConversationList->Append(clientConversation);

            CleanupStack::Pop();

        }

    }

    PRINT1 ( _L("CCsConversationCache::GetConversationEntryListL - conversationCount:%d"),

            totalConversation );

}

// ----------------------------------------------------------------------------

// CCsConversationCache::GetConversationUnreadListL

// Get Conversation list with contact details and unread conversation

// for all stored conversations

// This API can be used to prepare conversation list

// ----------------------------------------------------------------------------

void CCsConversationCache::GetConversationUnreadListL(RPointerArray<

        CCsClientConversation>* aClientConversationList)

    {

    TInt conversationCount = iConversationList->Count();

    // Write the contact display names

    for (TInt loop = 0; loop < conversationCount; loop++)

        {

        CCsConversation* conversation =

                static_cast<CCsConversation*> ((*iConversationList)[loop]);

        // The check is needed to avoid crash while internalizing resulting

        // from the row added for unknown drafts

        if (conversation->GetEntryCount() && conversation->GetUnreadMessageCount())

            {

            CCsClientConversation* clientConversation = CreateClientConvLC(

                    conversation, conversation->GetLatestUnreadEntryL());

            aClientConversationList->Append(clientConversation);

            CleanupStack::Pop();

            }

        }

    PRINT1 ( _L("CCsConversationCache::GetConversationUnreadListL - conversationCount:%d"),

            conversationCount );

    }

// ----------------------------------------------------------------------------

// CCsConversationCache::GetConversationsL

// Get All Conversations for a given conversation Id

// the return list is set inside aConversationEntryList

// ----------------------------------------------------------------------------

void CCsConversationCache::GetConversationsL(

                                             const CCsClientConversation* aClientConversation,

                                             RPointerArray<CCsConversationEntry>* aConversationEntryList)

{

    TInt totalConversation = iConversationList->Count();

    // Get the entry id from Client Conversation for which conversations are required

    TCsConversationEntryID conversationEntryID =

            aClientConversation->GetConversationEntryId();

    // Write the contact display names

    for (TInt loop = 0; loop < totalConversation; loop++)

    {

        //match entry ID;

        CCsConversation* conversation =

                static_cast<CCsConversation*> ( (*iConversationList)[loop]);

        if (conversationEntryID == conversation->GetConversationId())

        {

            // search the conversation id and get the list inside

            conversation->GetEntryListL(aConversationEntryList);

            break;

        }

    }

    PRINT1 ( _L("CCsConversationCache::GetConversationsL - conversationCount:%d"),

            totalConversation );

}

// ----------------------------------------------------------------------------

// CCsConversationCache::HandleConversations

// Called from server. This is to handle the event callback from plugin dll

// The idea is to add entries to the cache and at the same time update the clients

// ----------------------------------------------------------------------------

void CCsConversationCache::HandleConversations(const RPointerArray<

        CCsConversationEntry>& aConversationEntryLists,

                                               const TUint32 aConversationEvent)

{

    // get count

    TInt count = aConversationEntryLists.Count();

    // go through each conversation entry

    // add it into queue, event list

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

    {

        //get copy of conversation event

        TInt error;

        CCsConversationEvent* conEvent = NULL;

        CCsClientConversation* clientCon = NULL;

        CCsConversationEntry* conEntry = aConversationEntryLists[loop];

        if (aConversationEntryLists[loop])

        {

            TRAP(

                    error,

                    conEvent = CCsConversationEvent::NewL();

                    CleanupStack::PushL(conEvent);

                    //create clientconversation

                    clientCon = CCsClientConversation::NewL();

                    CleanupStack::PushL(clientCon);

                    clientCon->SetConversationEntryL(conEntry);

                    //set conversation entry

                    conEvent->SetClientConversationL(*clientCon);

                    //set event

                    conEvent->SetEvent(aConversationEvent);

                    //add entry

                    iConversationCacheHelper->ConversationEventList()->AppendL(conEvent);

                    CleanupStack::PopAndDestroy(clientCon);

                    CleanupStack::Pop(conEvent));

            if (error != KErrNone)

            {

                PRINT1 ( _L("CCsConversationCache::HandleConversation - Error:%d"),

                        error );

                continue;

            }

        }

    }

    iConversationCacheHelper->StartCacheUpdate();

}

// ----------------------------------------------------------------------------

// CCsConversationCache::GetTotalUnreadCount

// Pending event count

// ----------------------------------------------------------------------------

TUint32 CCsConversationCache::GetTotalUnreadCount()

    {

    TUint32 totalUnread = 0;

    for (TInt loop = 0; loop < iConversationList->Count(); ++loop)

        {

        CCsConversation* conversation =

                static_cast<CCsConversation*> ((*iConversationList)[loop]);

        totalUnread += conversation->GetUnreadMessageCount();

        }

    return totalUnread;

    }

// ----------------------------------------------------------------------------

// CCsConversationCache::NotifyL

// Send the notification client

// ----------------------------------------------------------------------------

void CCsConversationCache::NotifyL(CCsClientConversation* aConversation,

                                   TUint32 aEvent)

{

    iCsServer->NotifySessions(aConversation, aEvent);

}

// ----------------------------------------------------------------------------

// CCsConversationCache::CachingCompletedL

// This is called from cache helper after it resolves all events from plugin

// ----------------------------------------------------------------------------

void CCsConversationCache::CachingCompletedL()

{

    // Not supported

}

// ----------------------------------------------------------------------------

// CCsConversationCache::FindConversation

// Find a conversation based on contact Id

// ----------------------------------------------------------------------------

TInt CCsConversationCache::FindConversation(TInt32 aContactId)

{

    if (aContactId == KErrNotFound)

        return KErrNotFound;

    TInt totalConversations = iConversationList->Count();

    for (TInt index = 0; index < totalConversations; index++)

    {

        CCsConversation* conversation =

                static_cast<CCsConversation*> ( (*iConversationList)[index]);

        CCsConversationContact* inCache = conversation->GetContact();

        TInt32 idInCache = inCache->GetContactId();

        if (idInCache == KErrNotFound)

            continue;

        if (idInCache == aContactId)

        {

            return index;

        }

    }

    return KErrNotFound;

}

// ----------------------------------------------------------------------------

// CCsConversationCache::FindConversation

// Find a conversation based on phone number

// ----------------------------------------------------------------------------

TInt CCsConversationCache::FindConversation(TDesC& aPhoneNumber)

{

    TInt count = iConversationList->Count();

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

    {

        CCsConversation* conversation =

                static_cast<CCsConversation*> ( (*iConversationList)[cIndex]);

        CCsConversationContact* inCache = conversation->GetContact();

        if (inCache->MatchPhoneNumber(aPhoneNumber, iMatchDigitCount))

        {

            return cIndex;

        }

    }

    return KErrNotFound;

}

// ----------------------------------------------------------------------------

// CCsConversationCache::RedoResolvingL

// Redo contact resolving for the conversation at this index

// ----------------------------------------------------------------------------

void CCsConversationCache::RedoResolvingL(TInt aIndex)

{

    // Recover the associated conversation object

    CCsConversation* conversation =

            static_cast<CCsConversation*> ( (*iConversationList)[aIndex]);

    // Get the conversation entries

    RPointerArray<CCsConversationEntry> entryList;

    conversation->GetEntryListL(&entryList);

    // Handle as if they are new conversations

    HandleConversations(entryList, KConversationEventNew);

    // Send a notification for delete conversation

    CCsConversationEntry* convEntry = conversation->GetLatestEntryL();

    if (iConversationCacheHelper->IsNotifyRequiredL(conversation,

                                                    convEntry,

                                                    KConversationListEventDelete,

                                                    conversation->GetUnreadMessageCount()))

    {

        //clone conversation and send update to client

        CCsClientConversation* clientConv = CreateClientConvLC(conversation,

                                                               convEntry);

        NotifyL(clientConv, KConversationListEventDelete);

        CleanupStack::PopAndDestroy(clientConv);

    }

    // send all CV entry delete events, required in case CV is open

    // Notify client of conversation change

    TInt totalEntryCount = conversation->GetEntryCount();

    for (TInt entryCounter = totalEntryCount - 1; entryCounter >= 0;

            entryCounter--)

    {

        CCsConversationEntry* entryInConversation =

                conversation->GetEntryL(entryCounter);

        CCsClientConversation * clientConv =

                CreateClientConvLC(conversation, entryInConversation);

        NotifyL(clientConv, KConversationEventDelete);

        CleanupStack::PopAndDestroy(clientConv);

    }

    iConversationList->Remove(aIndex);

    entryList.ResetAndDestroy();

    delete conversation;

}

// ----------------------------------------------------------------------------

// CCsConversationCache::CreateClientConvLC

// create CCsConversation from CCsConversation and CCsConversationEntry

// ----------------------------------------------------------------------------

CCsClientConversation* CCsConversationCache::CreateClientConvLC(

                                                                const CCsConversation* aConversation,

                                                                const CCsConversationEntry* aConversationEntry)

{

    //create clientconversation

    CCsClientConversation* clientConversation = CCsClientConversation::NewL();

    CleanupStack::PushL(clientConversation);

    clientConversation->SetDisplayNameL(aConversation->GetDisplayName());

    clientConversation->SetConversationEntryId(aConversation->GetConversationId());

    clientConversation->SetConversationEntryL(aConversationEntry);

    clientConversation->SetContactId(aConversation->GetContactId());

    clientConversation->SetUnreadMessageCount(aConversation->GetUnreadMessageCount());

    return clientConversation;

}

// ----------------------------------------------------------------------------

// CCsConversationCache::MarkConversationAsDeleted

// ----------------------------------------------------------------------------

void CCsConversationCache::MarkConversationAsDeleted(TInt aConversationId,

                                                     TBool aDeleted, TInt aCount)

{

    TInt conversationCount = iConversationList->Count();

    for (TInt loop = 0; loop < conversationCount; loop++)

    {

        CCsConversation* conversation =

                static_cast<CCsConversation*> ( (*iConversationList)[loop]);

        TInt id = conversation->GetConversationId();

        if (id == aConversationId)

        {

            conversation->MarkDeleted(aDeleted);

            if( aCount )

                {

                CCsClientConversation* clientConversation =

                                    CreateClientConvLC(conversation,

                                                       conversation->GetLatestEntryL());

                NotifyL(clientConversation, KConversationListEventPartialDelete);

                CleanupStack::PopAndDestroy();// clientConversation

                }

            break;

        }