/*

 * 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: 

 * WLAN Wizard Page: Scan processing.

 */

// System includes

#include <HbMainWindow>

#include <HbDocumentLoader>

#include <HbWidget>

#include <HbLabel>

#include <HbProgressBar>

#include <QDebug>

#include <cmmanagerdefines_shim.h>

#include <wlanqtutils.h>

#include <wlanqtutilsap.h>

// User includes

#include "wlanwizard_p.h"

#include "wlanwizardpagescanning.h"

#include "OstTraceDefinitions.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "wlanwizardpagescanningTraces.h"

#endif

/*!

 * Constructor. Member initialization.

 */

WlanWizardPageScanning::WlanWizardPageScanning(WlanWizardPrivate* parent) :

    WlanWizardPageInternal(parent),

    mWidget(NULL),

    mLabel(NULL),

    mBar(NULL),

    mLoader(NULL),

    mNextPageId(WlanWizardPage::PageNone),

    mScanResultsAvailable(false)

{

    WlanQtUtils* utils = mWizard->wlanQtUtils();

    // Connect normal scan completion signal from wlanQtUtils to result

    // handler. Connect here instead of initializePage, since this signal may

    // need to be caught event if the window is not active.

    bool ok = connect(utils, SIGNAL(wlanScanApReady()), this,

        SLOT(wlanScanResultPreCheck()));

}

/*!

 * Destructor. Loader widget is deleted.

 * All document widgets are deleted by wlanwizard_p destructor.

 */

WlanWizardPageScanning::~WlanWizardPageScanning()

{

    delete mLoader;

}

/*!

 * Page initialization. If view is already loaded, does nothing.

 */

HbWidget* WlanWizardPageScanning::initializePage()

{

    OstTrace0( TRACE_NORMAL, WLANWIZARDPAGESCANNING_INITIALIZEPAGE,

        "WlanWizardPageScanning::initializePage" );

    // Next page id is reset with each initialization.    

    mNextPageId = WlanWizardPage::PageNone;

    if (mWidget == NULL) {

        mLoader = new HbDocumentLoader(mWizard->mainWindow());

        bool ok;

        mLoader->load(":/docml/occ_add_wlan_06.docml", &ok);

        Q_ASSERT_X(ok, "WlanWizardPageScanning", "Invalid docml file");

        // Initialize orientation

        loadDocml(mWizard->mainWindow()->orientation());

        // Load widgets

        mWidget = qobject_cast<HbWidget*> (mLoader->findWidget(

            "occ_add_wlan_06"));

        Q_ASSERT_X(mWidget != NULL, "WlanWizardPageScanning", "View not found");

        mLabel = qobject_cast<HbLabel*> (mLoader->findWidget("dialog"));

        Q_ASSERT_X(mLabel != NULL, "WlanWizardPageScanning",

            "textLabel not found");

        mBar = qobject_cast<HbProgressBar*> (mLoader->findWidget("progressBar"));

        Q_ASSERT_X(mBar != NULL, "WlanWizardPageScanning",

            "progressBar not found");

        WlanQtUtils* utils = mWizard->wlanQtUtils();

        // Connect orientation signal from the main window to orientation

        // loader.

        ok &= connect(mWizard->mainWindow(),

            SIGNAL(orientationChanged(Qt::Orientation)), this,

            SLOT(loadDocml(Qt::Orientation)));

        // Connect direct scan completion signal from wlanQtUtils to result

        // handler.

        ok &= connect(utils, SIGNAL(wlanScanDirectReady()), this,

            SLOT(wlanScanDirectReady()));

        Q_ASSERT(ok);

    }

    mLabel->setPlainText(hbTrId("txt_occ_dialog_searching").arg(

        mWizard->configuration(WlanWizardPrivate::ConfSsid).toString()));

    return mWidget;

}

/*!

 * Sends the user to the next page.

 */

int WlanWizardPageScanning::nextId(bool &removeFromStack) const

{

    removeFromStack = true;

    return mNextPageId;

}

/*!

 * Always false. Moving to next page is not done manually.

 * @see WlanWizardPage

 */

bool WlanWizardPageScanning::showPage()

{

    return false;

}

/*!

 * Loads the document orientation-specific parameters.

 */

void WlanWizardPageScanning::loadDocml(Qt::Orientation orientation)

{

    OstTrace1( TRACE_NORMAL, WLANWIZARDPAGESCANNING_LOADDOCML,

        "WlanWizardPageScanning::loadDocml - orientation ;orientation=%x",

        ( TUint )( orientation ) );

    bool ok;

    // Then load the orientation specific section

    if (orientation == Qt::Horizontal) {

        mLoader->load(":/docml/occ_add_wlan_06.docml", "landscape_section", &ok);

        Q_ASSERT(ok);

    } else {

        Q_ASSERT(orientation == Qt::Vertical);

        mLoader->load(":/docml/occ_add_wlan_06.docml", "portrait_section", &ok);

        Q_ASSERT(ok);

    }

}

void WlanWizardPageScanning::wlanScanResultPreCheck()

{

    if (!mWidget) {

        OstTrace1( TRACE_BORDER, WLANWIZARDPAGESCANNING_WLANSCANRESULTPRECHECK,

            "WlanWizardPageScanning::wlanScanResultPreCheck no widget;this=%x",

            this );

        mScanResultsAvailable = true;

    }

    else {

        if (mWizard->isCurrentPage(mWidget)) {

            OstTrace0( TRACE_BORDER,

                DUP1_WLANWIZARDPAGESCANNING_WLANSCANRESULTPRECHECK,

                "WlanWizardPageScanning::wlanScanResultPreCheck go to results");

            wlanScanApReady();

        }

        else {

            OstTrace0( TRACE_BORDER,

                DUP2_WLANWIZARDPAGESCANNING_WLANSCANRESULTPRECHECK,

                "WlanWizardPageScanning::wlanScanResultPreCheck"

                " not current widget" );

            mScanResultsAvailable = true;

        }

    }

}

/*!

 * Public networks did not reveal matches. Direct scan has been performed to

 * find out if the network is hidden but in range. If network is found, proceed

 * to next page according to scan results.

 * If nothing is found, proceed to manual network 

 * mode selection page.

 */

void WlanWizardPageScanning::wlanScanDirectReady()

{

    OstTrace0( TRACE_NORMAL, WLANWIZARDPAGESCANNING_WLANSCANDIRECTREADY,

        "WlanWizardPageScanning::wlanScanDirectReady" );

    WlanQtUtils* utils = mWizard->wlanQtUtils();

    Q_ASSERT(utils);

    QList<QSharedPointer<WlanQtUtilsAp> > wlanApList;

    utils->availableWlanAps(wlanApList);

    qDebug("WlanWizardPageScanning::wlanScanDirectReady - results read");

    QSharedPointer<WlanQtUtilsAp> item;

    qDebug("%d APs found", wlanApList.size());

    if(wlanApList.isEmpty()) {

        qDebug("Match not found. Go to manual settings.");

        mNextPageId = WlanWizardPageInternal::PageNetworkMode;

    }

    else {

        int strongestSignal = 0;

        int strongestIndex = 0;

        for (int i = 0; i < wlanApList.size(); i++) {

            // All direct scan results are matches. No need to compare ssids.

            // In case there are multiple matches to direct scan, use the

            // strongest signal on the result list.

            item = wlanApList.at(i);

            int str = item->value(WlanQtUtilsAp::ConfIdSignalStrength).toInt();

            if (str > strongestSignal) {

                qDebug("Strongest signal %d at %d", str, i);

                strongestSignal = str;

                strongestIndex = i;

            }

        }

        item = wlanApList.at(strongestIndex);

        qDebug("Select AP at %d", strongestIndex);

        mNextPageId = mWizard->getNextPageId(

            item->value(WlanQtUtilsAp::ConfIdSsid).toString(),

            item->value(WlanQtUtilsAp::ConfIdConnectionMode).toInt(),

            item->value(WlanQtUtilsAp::ConfIdSecurityMode).toInt(),

            item->value(WlanQtUtilsAp::ConfIdWpaPskUse).toBool(),

            true, // hidden

            item->value(WlanQtUtilsAp::ConfIdWpsSupported).toBool());

    }

    mWizard->nextPage();

}

/*!

 * All wlan channels have been scanned for public networks. Now process the

 * results. If a network is found which matches the ssid set by the user,

 * proceed to next page according to the network attributes.

 * If no ssid match is found, proceed to a direct scan.

 */

void WlanWizardPageScanning::wlanScanApReady()

{

    OstTrace0( TRACE_NORMAL, WLANWIZARDPAGESCANNING_WLANSCANAPREADY,

        "WlanWizardPageScanning::wlanScanApReady" );

    WlanQtUtils* utils = mWizard->wlanQtUtils();

    Q_ASSERT(utils);

    QList<QSharedPointer<WlanQtUtilsAp> > wlanApList;

    // Fetch the list of scan results.

    utils->availableWlanAps(wlanApList);

    qDebug("WlanWizardPageScanning::wlanScanApReady - results read");

    QString ssid =

        mWizard->configuration(WlanWizardPrivate::ConfSsid).toString();

    qDebug() << "SSID scanned by user " << ssid;

    bool matchFound = false;

    int strongestSignal = -1;

    int strongestIndex = 0;

    QSharedPointer<WlanQtUtilsAp> item;

    qDebug("%d APs found", wlanApList.size());

    for (int i = 0; i < wlanApList.size(); i++) {

        // In case there are multiple matches to direct scan, use the

        // strongest signal on the result list.

        item = wlanApList.at(i);

        if (item->value(WlanQtUtilsAp::ConfIdSsid).toString() == ssid) {

            qDebug("Match found");

            matchFound = true;

            int str = item->value(WlanQtUtilsAp::ConfIdSignalStrength).toInt();

            if (str > strongestSignal) {

                qDebug("Strongest signal %d at %d", str, i);

                strongestSignal = str;

                strongestIndex = i;

            }

        }

    }

    if (matchFound) {

        qDebug("Select AP at %d", strongestIndex);

        item = wlanApList.at(strongestIndex);

        mNextPageId = mWizard->getNextPageId(

            item->value(WlanQtUtilsAp::ConfIdSsid).toString(),

            item->value(WlanQtUtilsAp::ConfIdConnectionMode).toInt(),

            item->value(WlanQtUtilsAp::ConfIdSecurityMode).toInt(),

            item->value(WlanQtUtilsAp::ConfIdWpaPskUse).toBool(),

            false, // public

            item->value(WlanQtUtilsAp::ConfIdWpsSupported).toBool());

        // The ssid indicated by the user was found. Proceed to next page.

        mWizard->nextPage();

    }

    else {

        qDebug("Match not found. Perform direct scan.");

        utils->scanWlanDirect(ssid);

    }

}

/*!

 * Overloaded function from WlanWizardPage. Indicates that this window requires

 * post-initialization start operations.

 */

bool WlanWizardPageScanning::requiresStartOperation()

{

    return true;

}

/*!

 * Wlan scan is performed as a "post-initialization" which is executed in a

 * separate scheduler loop.

 */

void WlanWizardPageScanning::startOperation()

{

    OstTrace0( TRACE_NORMAL, WLANWIZARDPAGESCANNING_STARTOPERATION,

        "WlanWizardPageScanning::startOperation - start AP scan if results"

        " are available." );

    if (mScanResultsAvailable) {

        mScanResultsAvailable = false;

        wlanScanApReady();

    }

}