/*
* 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:  Menu Application Library state.
 *
*/

#include <qstatemachine.h>
#include <hblabel.h>
#include <hsshortcutservice.h>
#include <hscontentservice.h>
#include <hbmessagebox.h>
#include <hbaction.h>
#include <hbnotificationdialog.h>
#include <hsmenueventfactory.h>
#include "hsdialogcontroller.h"

#include "hsaddtohomescreenstate.h"
#include "hsmenuevent.h"
#include "canotifier.h"
#include "canotifierfilter.h"
#include "caservice.h"
#include "caquery.h"
#include "hsmenuservice.h"

const char SHORTCUT_WIDGET_URI[] = "hsshortcutwidgetplugin";
const char SHORTCUT_ID[] = "caEntryId";



/*!
 \class HsAddToHomeScreenState
 \ingroup group_hsmenustateplugin
 \brief Application Library State.
 \see StateMachine
 \lib ?library
 Parent state for Application Library functionality
 (browsing applications and collections)
 */

/*!
 Constructor
 \param parent Parent state.
 \retval void
 */
HsAddToHomeScreenState::HsAddToHomeScreenState(QState *parent) :
    QState(parent),
    mMenuMode(Hs::NormalHsMenuMode)
{
    setObjectName("/AddToHomeScreenState");
    
    if (this->parent()) {
        setObjectName(this->parent()->objectName() + objectName());
    }
    
    connect(this, SIGNAL(exited()), SLOT(cleanUp()));
}

/*!
 Destructor.
 */
HsAddToHomeScreenState::~HsAddToHomeScreenState()
{
    QT_TRY {
        emit exit();
    } QT_CATCH (...) {
    }
}

/*!
 onEntry method invoked on entering the state
 Adds a widget or shortcut to the active page of home screen.
 It reads "data" property which value is a string map.
 The map can keep either data specific for shortcut (item id)
 or widget (entry type name, widget library name, widget uri).
 Depending on the property values it calls method for adding widget
 or shortcut.
 \param contentService: service for adding widgets
 \retval void
 */
void HsAddToHomeScreenState::onEntry(QEvent *event)
{
    HSMENUTEST_FUNC_ENTRY("HsAddToHomeScreenState::onEntry");
    QState::onEntry(event);
    HsMenuEvent *menuEvent = static_cast<HsMenuEvent *>(event);
    QVariantMap data = menuEvent->data();

    mEntryId = data.value(Hs::itemIdKey).toInt();
    QSharedPointer<CaEntry> entry = CaService::instance()->getEntry(mEntryId);
    const QString entryTypeName = entry->entryTypeName();
    
    mMenuMode = static_cast<Hs::HsMenuMode>(data.value(Hs::menuModeType).toInt());
    mToken = data.value(Hs::homescreenData);

    bool success = false;
    if (entryTypeName == Hs::widgetTypeName) {
        const QString uri = entry->attribute(Hs::widgetUriAttributeName);
        success = addWidget(*HsContentService::instance(), uri);        
    } else {
        success = addApplication(*HsContentService::instance(), *entry);
    }
    
    if (success && (mMenuMode == Hs::NormalHsMenuMode)) {
        HbNotificationDialog *notificationDialog = new HbNotificationDialog();
        notificationDialog->setAttribute(Qt::WA_DeleteOnClose);
        notificationDialog->setSequentialShow(false);
        notificationDialog->setTitle(hbTrId(
                                     "txt_applib_dpophead_added_to_homescreen") );
        notificationDialog->show();
    }

    HSMENUTEST_FUNC_EXIT("HsAddToHomeScreenState::onEntry");
}

/*!
 Adds a widget to active page of home screen
 \param contentService: service for adding widgets
 \param uri: widget uri
 \retval true if successful
 */
bool HsAddToHomeScreenState::addWidget(HsContentService &contentService, 
        const QString &uri)
{
    HSMENUTEST_FUNC_ENTRY("HsAddToHomeScreenState::addWidget");
    QVariantHash params;
    params[Hs::uri] = uri;
    params[Hs::homescreenData] = mToken;
    bool success = contentService.createWidget(params);
    if (!success) {
        showMessageWidgetCorrupted();
    } else {
        openHomeScreen();
    }
    logActionResult("Adding widget", mEntryId, success);
    HSMENUTEST_FUNC_EXIT("HsAddToHomeScreenState::addWidget");
    return success;
}

/*!
 Shows message about corrupted widget library. Deletes widget eventually.
 \param itemId entryId of widget (needed to delete it)
 \retval void
 */
void HsAddToHomeScreenState::showMessageWidgetCorrupted()
{
    HSMENUTEST_FUNC_ENTRY("HsCollectionState::showMessageWidgetCorrupted");

    QScopedPointer<HsDialogController> dialogController(
            new HsDialogController(
                hbTrId(
                    "txt_applib_dialog_file_corrupted_unable_to_use_wi")));

    connect(dialogController.data(),
            SIGNAL(acceptActionTriggered(QAction*)),
            this,
            SLOT(removeWidget()));

    connect(dialogController.data(),
            SIGNAL(dialogCompleted()),
            this,
            SLOT(openHomeScreen()));

    // ensure dialog is dismissed on app key pressed
    connect(this, SIGNAL(exited()),
            dialogController.data(),
            SLOT(dismissDialog()));

    dialogController.take()->openDialog(
            mEntryId
            );
    
    HSMENUTEST_FUNC_EXIT("HsCollectionState::showMessageWidgetCorrupted");
}

/*!
 Exits the state. When in Add Mode sends event requesting back step to
 Home Screen.
 \retval void
 */
void HsAddToHomeScreenState::openHomeScreen()
{
    emit exit();
    if (mMenuMode == Hs::AddHsMenuMode) {
        machine()->postEvent(
            HsMenuEventFactory::createOpenHomeScreenEvent());
    }
}


/*!
 Slot. Removes entry requested that was subject of
 current 'add to homescreen' action.
 \retval void
 */
#ifdef COVERAGE_MEASUREMENT
#pragma CTC SKIP
#endif //COVERAGE_MEASUREMENT
void HsAddToHomeScreenState::removeWidget()
{
    HsMenuService::executeAction(mEntryId, Hs::removeActionIdentifier);
}
#ifdef COVERAGE_MEASUREMENT
#pragma CTC ENDSKIP
#endif //COVERAGE_MEASUREMENT

/*!
 Slot launched after state has exited and in destructor.
 \retval void
 */
void HsAddToHomeScreenState::cleanUp()
{
    mToken = NULL;
}


/*!
 Adds a shortcut to active page of home screen
 \param contentService service for adding shortcuts.
 \retval true if successful.
 */
bool HsAddToHomeScreenState::addShortcut(HsContentService &contentService)
{
    HSMENUTEST_FUNC_ENTRY("HsAddToHomeScreenState::addShortcut");
    QVariantHash params;
    params[Hs::uri] = SHORTCUT_WIDGET_URI;
    QVariantHash preferences;
    preferences[SHORTCUT_ID] = QString::number(mEntryId);
    params[Hs::preferences] = preferences;
    params[Hs::homescreenData] = mToken;
    const bool result = contentService.createWidget(params);
    logActionResult("Adding shortcut", mEntryId, result);
    HSMENUTEST_FUNC_EXIT("HsAddToHomeScreenState::addShortcut");
    return result;
}

/*!
 Adds a tapplication to active page of Home Screen.
 \param contentService Service for adding shortcuts.
 \param entry Entry being added to Home Screen.
 \retval true if successful
 */
bool HsAddToHomeScreenState::addApplication(HsContentService &contentService,
                                             CaEntry& entry)
{
    bool success = false;
    if (entry.attributes().contains(Hs::widgetUriAttributeName)) {
        QVariantHash params;
        const QString uri = entry.attribute(Hs::widgetUriAttributeName);
        params[Hs::uri] = uri;       
        
        QVariantHash preferences;
        QMap<QString, QString> attributes = entry.attributes();
        QMapIterator<QString, QString> i(attributes);
        while (i.hasNext()) {
            i.next();
            QString key(i.key());
            QString value(i.value());
            if (key.contains(Hs::widgetParam)) {
                preferences.insert(key.remove(Hs::widgetParam),value);
            }
        }
        params[Hs::preferences] = preferences;
        params[Hs::homescreenData] = mToken;

        success = contentService.createWidget(params);
        if (!success) {
            success = addShortcut(contentService);
        }
    } else {
            success = addShortcut(contentService);
    }
    openHomeScreen();

    return success;
}

/*!
 Provides debug logging of add widget/shortcut action
 \param operation name: results of which operation is logged
 \param entryId: menu entry id that was added to home screen
 \param activePage: active page of home screen
 \param operationSucceded: true always and only when
 logged operation succeded
 \retval void
 */
void HsAddToHomeScreenState::logActionResult(QString operationName,
        int entryId, bool operationSucceded)
{
    const QString
    message =
        QString("\t%1 %2 item ID: %3, active page index: %4") .arg(
            operationName) .arg(operationSucceded ? "succeded"
                                : "failed") .arg(entryId);

    if (operationSucceded) {
        qDebug() << message;
    } else {
        qWarning() << message;
    }
}