/*

* Copyright (c) 2010 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:  

*   CpDestinationGroup contains all destination UI items as well as 

*   items for uncategorized access points and adding new destinations.

*/

// System includes

#include <QDir>

#include <QPluginLoader>

#include <QStringList>

#include <HbDataForm>

#include <HbDataFormModel>

#include <HbDataFormViewItem>

#include <HbParameterLengthLimiter>

#include <cpbasesettingview.h>

#include <cpitemdatahelper.h>

#include <cpsettingformentryitemdataimpl.h>

#include <cpsettingformitemdata.h>

#include <cmmanager_shim.h>

#include <cmdestination_shim.h>

#include <cmconnectionmethod_shim.h>

#include <cmmanagerdefines_shim.h>

// User includes

#include "cpdestinationgroup.h"

#include "cpdestinationentryitem.h"

#include "cpadddestinationentryitemdata.h"

#include "OstTraceDefinitions.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "cpdestinationgroupTraces.h"

#endif

/*!

    \class  CpDestinationGroup

    \brief  This class contains all data items representing destinations

    in commsdat. 

*/

// External function prototypes

// Local constants

// ======== LOCAL FUNCTIONS ========

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

/*!

    Constructor.

    @param[in] itemDataHelper Helper for connecting signals and slots.

 */

CpDestinationGroup::CpDestinationGroup(CpItemDataHelper &itemDataHelper) :

    CpSettingFormItemData(HbDataFormModelItem::GroupItem, 

        hbTrId("txt_occ_subhead_destinations_access_points")),

   mItemDataHelper(&itemDataHelper),

   mUncategorisedShown(false)

{

    OstTraceFunctionEntry0(CPDESTINATIONGROUP_CPDESTINATIONGROUP_ENTRY);

    mCmManager = new CmManagerShim();

    mBearerPlugins = new QList<CpBearerApPluginInterface *>();

    this->loadBearerPlugins();

    QList<QSharedPointer<CmDestinationShim> > destinationList;

    fetchDestinations(destinationList);

    // Create Destination list

    for (int i = 0; i < destinationList.count(); i++) {

        QString iapCount = 

			getDestinationAdditionalText(destinationList.at(i)->connectionMethodCount());

        // Create new destination entry

        CpDestinationEntryItemData *destDataItem;

        destDataItem = new CpDestinationEntryItemData(itemDataHelper);

        destDataItem->setContentWidgetData(QString("text"), destinationList.at(i)->name());

        destDataItem->setContentWidgetData(QString("additionalText"),iapCount);

        destDataItem->setDestinationId(destinationList.at(i)->id());

        destDataItem->setDestinationName(destinationList.at(i)->name());

        bool connected = connect(destDataItem, 

                                 SIGNAL(destChanged()), 

                                 this, 

                                 SLOT(updateDestinationInformation()));

        Q_ASSERT(connected);

        this->appendChild(destDataItem);

    }

    // Add "Uncategorised Iaps" button

    createUncategorisedDestination();

    // "Add Destination" button

    CpSettingFormEntryItemData *addDest = new CpAddDestinationEntryItemData(itemDataHelper, this);

    addDest->setContentWidgetData(QString("text"), hbTrId("txt_occ_button_add_destination"));

    this->appendChild(addDest);

    OstTraceFunctionExit0(CPDESTINATIONGROUP_CPDESTINATIONGROUP_EXIT);

}

/*!

    Destructor

 */

CpDestinationGroup::~CpDestinationGroup()

{

    OstTraceFunctionEntry0(DUP1_CPDESTINATIONGROUP_CPDESTINATIONGROUP_ENTRY);

    delete mBearerPlugins;

    delete mCmManager;

    OstTraceFunctionExit0(DUP1_CPDESTINATIONGROUP_CPDESTINATIONGROUP_EXIT);

}

/*!

    addDestination() creates new destination item to Destinations group item.

    The new destination is shown in the UI immediately.

 */

void CpDestinationGroup::addDestination(const QString &dest, int destId)

{

    OstTraceFunctionEntry0(CPDESTINATIONGROUP_ADDDESTINATION_ENTRY);

    QString iapCount = getDestinationAdditionalText(0);

    // Create UI item for new destination

    CpDestinationEntryItemData *destDataItem;

    destDataItem = new CpDestinationEntryItemData(*mItemDataHelper);

    destDataItem->setContentWidgetData(QString("text"), dest);

    destDataItem->setContentWidgetData(QString("additionalText"), iapCount);

    destDataItem->setDestinationId(destId);

    destDataItem->setDestinationName(dest);

    connect(destDataItem, SIGNAL(destChanged()), this, SLOT(updateDestinationInformation()));

    // Insert Child to correct position

    QList<QSharedPointer<CmDestinationShim> > destinationList;

    fetchDestinations(destinationList);

    insertChild(destinationList.count() - 1, destDataItem);

    OstTraceFunctionExit0(CPDESTINATIONGROUP_ADDDESTINATION_EXIT);

}

/*!

    Deletes destination from commsdat and removes it from UI.

 */

void CpDestinationGroup::deleteDestination(int destId)

{

    OstTraceFunctionEntry0(CPDESTINATIONGROUP_DELETEDESTINATION_ENTRY);

    // "Add Destination" child is removed from count (childCount() -1)

    for (int i = 0; i < this->childCount() - 1; i++) { 

        CpDestinationEntryItemData  *destDataItem = 

            static_cast<CpDestinationEntryItemData*>(this->childAt(i));

        if (destDataItem->destinationId() == destId) {

            int index = this->indexOf(destDataItem);

            this->removeChild(index);

            if (!mUncategorisedShown) {

            // Return "Uncategorised" item to UI if necessary

            createUncategorisedDestination();

            }

        }

    }

    OstTraceFunctionExit0(CPDESTINATIONGROUP_DELETEDESTINATION_EXIT);

}

/*!

    Finds correct access point settings implementation according to

    access point bearer type.

    \return Returns pointer to CpBearerApPluginInterface which implements

            access point settins.

 */

CpBearerApPluginInterface *CpDestinationGroup::findBearerPlugin(int apId)

{

    OstTraceFunctionEntry0(CPDESTINATIONGROUP_FINDBEARERPLUGIN_ENTRY);

    CpBearerApPluginInterface *retVal = NULL;

    try {

        CmConnectionMethodShim *cm = mCmManager->connectionMethod(apId);

        int apBearerType = cm->getIntAttribute(CMManagerShim::CmBearerType);

        for (int i = 0; i < mBearerPlugins->count(); i++) {

            if (mBearerPlugins->at(i)->bearerType() == apBearerType) {

                retVal = mBearerPlugins->at(i);

                break;

            }

        }

        delete cm;

    }

    catch (const std::exception&) {

        OstTrace0(TRACE_NORMAL, CPDESTINATIONGROUP_FINDBEARERPLUGIN, "CpDestinationGroup::findBearerPlugin: Exception caught");

        // Let return value be NULL.

    }

    OstTraceFunctionExit0(CPDESTINATIONGROUP_FINDBEARERPLUGIN_EXIT);

    return retVal;

}

/*!

    Updates all destination group items' destinations' information. 

    (Name and access point count)

 */

void CpDestinationGroup::updateDestinationInformation()

{

	OstTraceFunctionEntry0(CPDESTINATIONGROUP_UPDATEDESTINATIONINFORMATION_ENTRY);

	int apCount = 0;

	// "Add Destination" child is removed from count (childCount() -1)

    for (int i = 0; i < childCount() - 1; i++) {

        CpDestinationEntryItemData  *destDataItem = 

                static_cast<CpDestinationEntryItemData*>(this->childAt(i));

        if (destDataItem->destinationId() == 0) {

            // Uncategrised Iaps

	        QList<uint> apList;

            mCmManager->connectionMethod(apList);

            if (apList.count() == 0) {

                // delete empty uncategorised IAPs destination

                int index = this->indexOf(destDataItem);

                this->removeChild(index);

                mUncategorisedShown = false;

                continue;

            }

            apCount = apList.count();  

        } else {

            CmDestinationShim *destination;

            destination = mCmManager->destination(destDataItem->destinationId());

            apCount = destination->connectionMethodCount();

            delete destination;

        }

        QString iapCount = getDestinationAdditionalText(apCount);

        destDataItem->setContentWidgetData(QString("additionalText"), iapCount);

        destDataItem->setContentWidgetData(QString("text"), destDataItem->destinationName());

    }

    OstTraceFunctionExit0(CPDESTINATIONGROUP_UPDATEDESTINATIONINFORMATION_EXIT);

}

/*!

    Creates item for uncategorized access points to destination group item

    if there is any.

 */

void CpDestinationGroup::createUncategorisedDestination()

{

    OstTraceFunctionEntry0(CPDESTINATIONGROUP_CREATEUNCATEGORISEDDESTINATION_ENTRY);

    QList<uint> apList;

    mCmManager->connectionMethod(apList);

    if (apList.count() > 0) {

        // Create new destination entry

        CpDestinationEntryItemData *destDataItem;

        destDataItem = new CpDestinationEntryItemData(*mItemDataHelper);

        destDataItem->setContentWidgetData(QString("text"), hbTrId("txt_occ_dblist_uncategorized"));

        QString iapCount = getDestinationAdditionalText(apList.count());

        destDataItem->setContentWidgetData(QString("additionalText"),iapCount);

        destDataItem->setDestinationId(0);

        destDataItem->setDestinationName(hbTrId("txt_occ_dblist_uncategorized"));

        bool connected = connect(

            destDataItem, 

            SIGNAL(destChanged()), 

            this, 

            SLOT(updateDestinationInformation()));

        Q_ASSERT(connected);

        QList<QSharedPointer<CmDestinationShim> > destinationList;

        fetchDestinations(destinationList);

        insertChild(destinationList.count(), destDataItem);

        mUncategorisedShown = true;

    }

    OstTraceFunctionExit0(CPDESTINATIONGROUP_CREATEUNCATEGORISEDDESTINATION_EXIT);

}

/*!

    Searches all destinations from commsdat. List of representing 

    CmDestinationShim * items returned on completion.

 */

void CpDestinationGroup::fetchDestinations(

    QList<QSharedPointer<CmDestinationShim> > &destinationList)

{

    OstTraceFunctionEntry0(CPDESTINATIONGROUP_FETCHDESTINATIONS_ENTRY);

    try {

        QList<uint> destArray;

        mCmManager->allDestinations(destArray);

        for (int i = 0; i < destArray.count(); i++) {

            CmDestinationShim *destination;

            destination = mCmManager->destination(destArray[i]);

            if (!destination->isHidden()) {

                destinationList.append(QSharedPointer<CmDestinationShim>(destination));

            }

        }

    } catch (const std::exception&) {

        OstTrace0(TRACE_NORMAL, CPDESTINATIONGROUP_FETCHDESTINATIONS, "CpDestinationGroup::fetchDestinations: exception caught, Reading destinations");

    }

    OstTraceFunctionExit0(CPDESTINATIONGROUP_FETCHDESTINATIONS_EXIT);

}

/*!

    Searches all bearer plugins from fixed location and loads them.

    \sa findBearerPlugin()

 */

void CpDestinationGroup::loadBearerPlugins()

{

    OstTraceFunctionEntry0(CPDESTINATIONGROUP_LOADBEARERPLUGINS_ENTRY);

    // Load bearer plugins

    QDir pluginsDir("\\resource\\qt\\plugins\\controlpanel\\bearerap");

    foreach (QString fileName, pluginsDir.entryList(QDir::Files)) {

        QPluginLoader loader(pluginsDir.absoluteFilePath(fileName));

        CpBearerApPluginInterface *plugin = 

                qobject_cast<CpBearerApPluginInterface *>(loader.instance());

        if (plugin) {

            mBearerPlugins->append(plugin);

        }

    } 

    OstTraceFunctionExit0(CPDESTINATIONGROUP_LOADBEARERPLUGINS_EXIT);

}

/*!

    Helper function to be used in localisation.

    \return Returns correct localized QString according to access point count.

 */

QString CpDestinationGroup::getDestinationAdditionalText(int iapCount)

{

    OstTraceFunctionEntry0(CPDESTINATIONGROUP_GETDESTINATIONADDITIONALTEXT_ENTRY);

    QString result = "";

    if (iapCount > 0) {

        result = hbTrId("txt_occ_dblist_internet_val_ln_access_points", iapCount);

    } else {

        result = hbTrId("txt_occ_dblist_internet_val_no_access_points");

    }

    OstTrace0(TRACE_FLOW, CPDESTINATIONGROUP_GETDESTINATIONADDITIONALTEXT_EXIT, "Exit");

    return result;

}