/*

* Copyright (c) 2009 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:

*

*/

#include <qtimer.h>

#include <hblistview.h>

#include <hbsearchpanel.h>

#include <hbaction.h>

#include <hbprogressdialog.h>

#include <hbscrollbar.h> 

#include <hbiconitem.h>

#include <hbiconanimator.h>

#include <hblabel.h> 

#include <hbiconanimationmanager.h>

#include "irsearchchannelsview.h"

#include "iruidefines.h"

#include "irqisdsclient.h"

#include "irapplication.h"

#include "irviewmanager.h"

#include "irqnetworkcontroller.h"

#include "irchannelmodel.h"

#include "irqisdsdatastructure.h"

#include "irplaycontroller.h"

const uint KBitmapSize = 59;

IRSearchChannelsView::IRSearchChannelsView(IRApplication* aApplication,

        TIRViewId aViewId): IRBaseView(aApplication, aViewId),

        iChannelModel(NULL),iPreset(NULL),iLogoPreset(NULL),

        iConvertTimer(NULL) 

{

    //if this view is not starting view, finish all initialization in constructor

    if (getViewManager()->views().count() > 0)

    {

        if (!initCompleted())

        {            

            normalInit();             

        }

    }

}

void IRSearchChannelsView::lazyInit()

{

    if (!initCompleted())

    {

        normalInit();                     

    }        

}

void IRSearchChannelsView::normalInit()

{

    if (!initCompleted())

    { 

        IRBaseView::lazyInit();

        loadLayout();

        connectWidget();  

        switch2InitState();       

        initMenu();        

        initTimer();

        setInitCompleted(true);

    }

}

void IRSearchChannelsView::initMenu()

{

}

void IRSearchChannelsView::initTimer()

{     

    iConvertTimer = new QTimer(this);

    iConvertTimer->setInterval(10); 

    connect(iConvertTimer, SIGNAL(timeout()), this, SLOT(convertAnother()));

}

IRSearchChannelsView::~IRSearchChannelsView()

{   

    if( iPreset != NULL )

    {

        delete iPreset;

        iPreset = NULL;

    }

    if( iLogoPreset != NULL )

    {

        delete iLogoPreset;

        iLogoPreset = NULL;

    }

    if( NULL != iChannelModel )

    {

        iChannelModel->save2Cache();

    }

}

void IRSearchChannelsView::loadLayout()

{

    // Create widget hierarchy

    setObjectName( SEARCH_CHANNELS_VIEW_OBJECT_VIEW );

    // List existing root elements - this allows us to refer to objects in the XML 

    // which are created outside the document.

    QObjectList roots;

    roots.append( this );

    iLoader.setObjectTree( roots );

    iLoader.load(SEARCH_CHANNELS_VIEW_LAYOUT_FILENAME);

    iSearchPanelWidget = qobject_cast<HbSearchPanel *>(iLoader.findWidget(SEARCH_CHANNELS_VIEW_SEARCHPANEL_WIDGET));    

    iListView = qobject_cast<HbListView *>(iLoader.findWidget(SEARCH_CHANNELS_VIEW_SEARCHLISTVIEW_WIDGET));   

    iListView->setFlag(ItemIsFocusable);

    HbScrollBar *scrollbar = iListView->verticalScrollBar();

    scrollbar->setVisible(true);

    scrollbar->setInteractive(true);

    iListView->setVerticalScrollBarPolicy(HbScrollArea::ScrollBarAsNeeded);

    iChannelModel = new IrChannelModel(this);

    iChannelModel->initWithCache();

    iListView->setModel(iChannelModel);    

}

void IRSearchChannelsView::connectWidget()

{     

    connect(iListView, SIGNAL(activated(const QModelIndex&)), this, SLOT(clickItem(const QModelIndex&)));

    connect(iChannelModel, SIGNAL(dataAvailable()), this, SLOT(dataChanged()));

    connect(iNetworkController, SIGNAL(networkRequestNotified(IRQNetworkEvent)), this, SLOT(networkRequestNotified(IRQNetworkEvent)));     

    connect(iSearchPanelWidget,SIGNAL(criteriaChanged(const QString&)),this,SLOT(searchTextAlready(const QString&)));

    connect(iSearchPanelWidget, SIGNAL(exitClicked()), this, SLOT(minimizeSearchPanel()));

}

void IRSearchChannelsView::connectIsdsClient()

{

    connect(iIsdsClient, SIGNAL(channelItemsChanged(QList<IRQChannelItem *> *)),

            iChannelModel, SLOT(updateData(QList<IRQChannelItem *> *)));    

    connect(iIsdsClient, SIGNAL(operationException(IRQError)),

            this, SLOT(operationException(IRQError)));   

    connect(iIsdsClient, SIGNAL(presetResponse(IRQPreset *)),

            this, SLOT(presetResponse(IRQPreset *)));    

    connect(iIsdsClient, SIGNAL(presetLogoDownloaded(IRQPreset* )),

            this, SLOT(presetLogoDownload(IRQPreset* )));     

    connect(iIsdsClient, SIGNAL(presetLogoDownloadError()),

            this, SLOT(presetLogoDownloadError()));

}

void IRSearchChannelsView::disconnectIsdsClient()

{ 

    disconnect(iIsdsClient, SIGNAL(channelItemsChanged(QList<IRQChannelItem *> *)),

            iChannelModel, SLOT(updateData(QList<IRQChannelItem *> *)));

    disconnect(iIsdsClient, SIGNAL(operationException(IRQError)), this,

            SLOT(operationException(IRQError))); 

    disconnect(iIsdsClient, SIGNAL(presetResponse(IRQPreset *)),

                       this, SLOT(presetResponse(IRQPreset *)));

    disconnect(iIsdsClient, SIGNAL(presetLogoDownloaded(IRQPreset*)),

                       this, SLOT(presetLogoDownload(IRQPreset* )));

    disconnect(iIsdsClient, SIGNAL(presetLogoDownloadError()),

                       this, SLOT(presetLogoDownloadError()));  

}

void IRSearchChannelsView::switch2InitState()

{    

    iSearchState = ESearch_init;     

    iApplication->stopLoadingAnimation();

} 

void IRSearchChannelsView::switch2LoadingState()

{   

    iSearchPanelWidget->clearFocus();

    iListView->setFocus();

    iSearchState = ESearch_Loading;

    QSizeF searchPanelSize = iSearchPanelWidget->size();

    QSizeF windowSize = getViewManager()->size();

    QPointF pos(windowSize.width()/2,(windowSize.height() - searchPanelSize.height())/2);

    QPointF iconPos(LOADING_ANIMATION_ICON_SIZE/2, LOADING_ANIMATION_ICON_SIZE/2);

    pos -= iconPos;

    iApplication->startLoadingAnimation(pos);

}

void IRSearchChannelsView::handleItemSelected()

{

    if (iListView)

    {

        int index = iListView->currentIndex().row();

        IRQChannelItem* aItem = iChannelModel->getChannelItemByIndex(index);

        if( NULL != aItem )

        {

            iIsdsClient->isdsListenRequest(aItem->channelID,true);

        }        

    }

}

void IRSearchChannelsView::cancelRequest()

{     

    iIsdsClient->isdsCancelRequest();    

    switch2InitState(); 

} 

void IRSearchChannelsView::networkRequestNotified(IRQNetworkEvent aEvent)

{        

    if (getViewManager()->currentView() != this)

    {       

        return;

    }

    switch (aEvent)

    {

    case EIRQNetworkConnectionEstablished:

        if(EIR_UseNetwork_StartSearch == getUseNetworkReason())

        {

            Q_ASSERT( !iKeyText.isEmpty() );

            iIsdsClient->isdsSearchRequest(iKeyText);             

        }

        else if( EIR_UseNetwork_SelectItem == getUseNetworkReason() )

        {            

            handleItemSelected();

        }

        setUseNetworkReason(EIR_UseNetwork_NoReason);

        break;        

    default:             

        switch2InitState();         

        setUseNetworkReason(EIR_UseNetwork_NoReason);        

        break;

    }   

} 

void IRSearchChannelsView::searchTextAlready(const QString& aSearchCriteria)

{

    iKeyText = aSearchCriteria.trimmed();

    if( iKeyText.isEmpty() )

    {

        //show some error info here to let user input some criteria

        return;

    }  

    setUseNetworkReason(EIR_UseNetwork_StartSearch);     

    if (false == iApplication->verifyNetworkConnectivity())

    {        

        switch2LoadingState();

        return;

    }

    //if previouse request is in progress, cancel it

    if( ESearch_Loading == iSearchState )

    {

        iIsdsClient->isdsCancelRequest();            

        iConvertTimer->stop();

        iIsdsClient->isdsLogoDownCancelTransaction();

    }

    setUseNetworkReason(EIR_UseNetwork_NoReason);    

    switch2LoadingState();

    iIsdsClient->isdsSearchRequest(iKeyText);    

}

void IRSearchChannelsView::operationException(IRQError aError)

{        

    switch2InitState();

    QString errStr;    

    switch(aError)

    {

    case EIRQErrorNotFound:

        errStr = hbTrId("txt_irad_info_no_matching_stations_found");

        break;

    default:

        errStr = hbTrId("txt_irad_info_failed_to_connect");

        break;   

    }

    popupNote(errStr, HbMessageBox::MessageTypeWarning);     

}

void IRSearchChannelsView::clickItem(const QModelIndex&)

{

    setUseNetworkReason(EIR_UseNetwork_SelectItem);

    if (false == iApplication->verifyNetworkConnectivity())

    {

        switch2LoadingState();

        return;

    }

    setUseNetworkReason(EIR_UseNetwork_NoReason);

    switch2LoadingState();

    handleItemSelected();

}

void IRSearchChannelsView::presetResponse(IRQPreset *aPreset)

{    

    delete iPreset;

    iPreset = aPreset;

    if (iPreset)

    {

        iPlayController->connectToChannel(iPreset,EIRQIsds);

    }

}

void IRSearchChannelsView::convertAnother()

{

    iConvertTimer->stop();

    int leftCount = iIconIndexArray.count();

    if( leftCount > 0 )

    { 

        startConvert(iIconIndexArray[0]);   

    }

}

void IRSearchChannelsView::dataChanged()

{

    switch2InitState(); 

    iListView->reset();

    //we move the focus to the listview and the search panel will

    //hide the virtual keyboard at the same time

    iListView->setFocus();            

    iIconIndexArray.clear();

    //initialize the iconindices

    for (int i = 0; i < iChannelModel->rowCount(); ++i)

    {

        if (iChannelModel->imageUrl(i) != "")

        {            

            iIconIndexArray.append(i);

        }

    }

    if( iIconIndexArray.count() > 0 )

    {

        iConvertTimer->start();        

}

void IRSearchChannelsView::startConvert(int aIndex)

{

    QString url = iChannelModel->imageUrl(aIndex);

    IRQPreset tempPreset;

    tempPreset.imgUrl = url;

    tempPreset.type = IRQPreset::EIsds;

    bool cached = iIsdsClient->isdsIsLogoCached(&tempPreset, KBitmapSize, KBitmapSize);

    if( !cached )

    {

        bool network = iNetworkController->getNetworkStatus();

        //if the network is not ready, some exception happens and we don't get the logos

        //for they are not so important.

        if( !network )

        {             

            return;

        }       

    }

    iIsdsClient->isdsLogoDownSendRequest(&tempPreset, 0, KBitmapSize, KBitmapSize); 

}

//if the logo is downloaded ok

void IRSearchChannelsView::presetLogoDownload(IRQPreset* aPreset)

{

    if( NULL == aPreset )

    {

        presetLogoDownloadError();

        return;

    } 

    delete iLogoPreset;            

    iLogoPreset = aPreset;    

    if (iLogoPreset->logoData != KNullDesC8)

    {         

        QPixmap tempMap;  

        const unsigned char * logoData = iLogoPreset->logoData.Ptr();     

        bool ret = tempMap.loadFromData(logoData, iLogoPreset->logoData.Length());

        QIcon convertIcon(tempMap);

        if( ret )

        {            

            HbIcon *hbIcon = new HbIcon(convertIcon);

            int index = iIconIndexArray[0];

            iChannelModel->setLogo(hbIcon, index);

            iIconIndexArray.removeAt(0);     

            int leftCount = iIconIndexArray.count(); 

            if( leftCount > 0 )

            {

                iConvertTimer->start();  

            }             

            return;

        }     

    }    

    presetLogoDownloadError(); 

}

//if the logo download fails

void IRSearchChannelsView::presetLogoDownloadError()

{

    // if the logo download fails, try to download the next

    iIconIndexArray.removeAt(0);

    int leftCount = iIconIndexArray.count();

    if( leftCount > 0 )

    {

        iConvertTimer->start();

    }     

}

void IRSearchChannelsView::minimizeSearchPanel()

{

    if( ESearch_Loading == iSearchState )

    {

        if( ! ( iPlayController->isStopped() || iPlayController->isIdle() ) )

        {

            //cancel buffering

            iPlayController->cancelBuffering();

        }

        disconnectIsdsClient();

        iIsdsClient->isdsCancelRequest();

        iConvertTimer->stop();

        iIsdsClient->isdsLogoDownCancelTransaction();

        switch2InitState();      

    }

    int count = iChannelModel->rowCount();

    if (0 == count)

    {         

        iSearchPanelWidget->clearFocus();

        iListView->setFocus();        

        getViewManager()->backToPreviousView();

    }