/*

* 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: NMail Application Launcher interface used for interfacing between

*              QT highway and other applications

*

*/

//  INCLUDES

#include "nmuiheaders.h"

/*!

    \class NmStartParamDataHelper

    \brief A helper class for processing the data given to the actual service.

*/

class NmStartParamDataHelper

{

public:

    /*!

        Class constructor.

    */

    inline NmStartParamDataHelper()

    : mSubject(NULL),

      mToAddresses(NULL),

      mCcAddresses(NULL),

    {

        NM_FUNCTION;

    }

    /*!

        Class destructor.

    */

    inline ~NmStartParamDataHelper()

    {

        NM_FUNCTION;

    }

    /*!

        Extracts the data from the given QString into the class members.

        \param data QString containing the data.

        \return True if success, false otherwise.

    */

    inline bool extractData(const QString &data)

    {

        NM_FUNCTION;

        bool success(false);

        QUrl uri(data);

        if (uri.isValid()) {

            mSubject = new QString(uri.queryItemValue(emailSendSubjectKey));

            QString to = uri.path();

            QString cc = uri.queryItemValue(emailSendCcKey);

            QString bcc = uri.queryItemValue(emailSendBccKey);

            addAddressesToList(to, &mToAddresses);

            addAddressesToList(cc, &mCcAddresses);

            addAddressesToList(bcc, &mBccAddresses);

            success = true;

        }

        return success;

    }

    /*!

        Appends the given addresses into the given list.

        \param address The addresses to append.

        \param list The list where the addresses are appended to.

    */

    inline void addAddressesToList(QString &addresses,

                                   QList<NmAddress*> **list)

    {

        NM_FUNCTION;

        if (!addresses.isEmpty()) {

            QList<NmAddress*> foundAddresses;

            // Process multiple addresses.

            if (addresses.contains(",")) {

                QString str;               

                while (addresses.contains(",")) {

                    str = addresses.section(",", 0, 0); // Get the occurance.

                    addresses.remove(0, (addresses.indexOf(",")+1)); // Remove the occurance.

                    if (!str.isEmpty()) { // In case str would be empty on some error data. 

                        NmAddress *address = new NmAddress(str);

                        foundAddresses.append(address);    

                    }

                }

            }

            if (!addresses.isEmpty()) { // In case addresses would be empty on some error data. 

                // Last one or single address.

                NmAddress *address = new NmAddress(addresses);

                foundAddresses.append(address);

            }

            // Append the found addresses into the given list.

            *list = new QList<NmAddress*>();

            (*list)->append(foundAddresses);

        }

    }

    /*!

        Deletes the class members. Must be used if NmUiStartParam does not

        take ownership of the members.

    */

    inline void deleteData()

    {

        NM_FUNCTION;

        delete mSubject;

        if (mToAddresses) {

            qDeleteAll(*mToAddresses);

            delete mToAddresses;

        }

        if (mCcAddresses) {

            qDeleteAll(*mCcAddresses);

            delete mCcAddresses;

        }

        if (mBccAddresses) {

            qDeleteAll(*mBccAddresses);

            delete mBccAddresses;

        }

    }

public: // Data

    QString *mSubject; // Not owned.

    QList<NmAddress*> *mToAddresses; // Not owned.

    QList<NmAddress*> *mCcAddresses; // Not owned.

    QList<NmAddress*> *mBccAddresses; // Not owned.

};

/*!

    \class NmUriServiceInterface

    \brief NMail application service interface which provides an email sending

           interface for other application using the Qt Highway.

*/

/*!

    Class constructor.

*/

NmUriServiceInterface::NmUriServiceInterface(QObject *parent,

                                               NmUiEngine &uiEngine,

                                               NmApplication *application)

    : XQServiceProvider(emailServiceName+"."+XQI_URI_VIEW, parent),

      mApplication(application),

      mUiEngine(uiEngine),

      mAsyncReqId(0),

      mStartParam(NULL),

      mSelectionDialog(NULL),

      mCurrentView(NULL)

{

    publishAll();

}

/*!

    Class desctructor.

*/

NmUriServiceInterface::~NmUriServiceInterface()

{

    NM_FUNCTION;

    delete mStartParam;

    delete mSelectionDialog;

}

/*!

    Queries the user for a mailbox to use.

    \param mailboxId Where the ID of the selected mailbox is set.

    \return True if a mailbox was selected, false otherwise.

*/

void NmUriServiceInterface::selectionDialogClosed(NmId &mailboxId)

{

    NM_FUNCTION;

    if (mailboxId.id()) { // mailbox selected

        launchEditorView(mailboxId);

    }

    else {

        cancelService();

    }

}

/*!

    Used from external applications to handle mailto: uri's.

    \param data <mailto:> uri

*/

bool NmUriServiceInterface::view(const QString& uri)

{

    NM_FUNCTION;

    HbMainWindow *mainWindow(NULL);

    if (mApplication) {

        // Make sure that nmail stays background if user presses back in editorview

        mApplication->updateVisibilityState();

        mainWindow = mApplication->mainWindow();

        if (mainWindow) {

            mCurrentView = mainWindow->currentView();  

        } 

    }

    // Hide the current view.

    if (mCurrentView) {

        mCurrentView->hide();

    }

    // Check the given data.

    NmStartParamDataHelper dataHelper;

    bool validData = dataHelper.extractData(uri);

    NmMailboxListModel &mailboxListModel = mUiEngine.mailboxListModel();

    const int count = mailboxListModel.rowCount();

    NmId mailboxId(0);

    mAsyncReqId = setCurrentRequestAsync();

    if (!validData) {

        // Failed to extract the data!

        NM_ERROR(1,"NmUriServiceInterface::view(): failed to process the given data");

        cancelService();

    }

    else if (count == 0) {

        HbDeviceMessageBox note(hbTrId("txt_mail_dialog_no_mailboxes_defined"),

                          HbMessageBox::MessageTypeInformation);

        note.setTimeout(HbMessageBox::NoTimeout);

        note.show();

        cancelService();

    }

    else { // count > 0

        if (mainWindow) {

            mainWindow->show();        

        }

    	mStartParam = new NmUiStartParam(

        	NmUiViewMessageEditor,

	        0, // account id

	        0, // folder id

    	    0, // message id

    	    NmUiEditorMailto, // editor start mode

	        dataHelper.mToAddresses, // address list

        	true, // start as service

	        dataHelper.mSubject, // message subject

	        dataHelper.mCcAddresses, // list containing cc recipient addresses

	    );

        if (count == 1) {

            // A single mailbox exists.

            QModelIndex modelIndex = mailboxListModel.index(0, 0);

            QVariant mailbox(mailboxListModel.data(modelIndex));

            NmMailboxMetaData *mailboxMetaData = mailbox.value<NmMailboxMetaData*>();

            mailboxId = mailboxMetaData->id();

        	launchEditorView(mailboxId);

        }

        else { // count > 1

            if (!mSelectionDialog) {

                mSelectionDialog =

                    new NmMailboxSelectionDialog(mUiEngine.mailboxListModel());

            }

            if (!XQServiceUtil::isEmbedded()) {

                XQServiceUtil::toBackground(false);

            }

            connect(mSelectionDialog,SIGNAL(selectionDialogClosed(NmId&)),

                this,SLOT(selectionDialogClosed(NmId&)));

            mSelectionDialog->open();

            // launch the editor when the dialog is closed

        }

    }

    return true;

}

/*!

    Called when mailbox id is known and editor can be opened

    \param mailboxId mailbox using in editor

 */

void NmUriServiceInterface::launchEditorView(NmId mailboxId)

{

    NM_FUNCTION;

    NM_COMMENT(QString("NmUriServiceInterface::launchEditorView(): mailboxId=%1").arg(mailboxId.id()));

    // Make the previous view visible again.

    if (mCurrentView) {

        mCurrentView->show();

        mCurrentView = NULL;

    }

    if (mStartParam) {

        // Make sure the NMail application is in the foreground

        if (!XQServiceUtil::isEmbedded()) {

            XQServiceUtil::toBackground(false);    

        }

        mStartParam->setMailboxId(mailboxId);

        mApplication->enterNmUiView(mStartParam);

        mStartParam = NULL; // ownership passed

    }

    completeRequest(mAsyncReqId, 1);

    mAsyncReqId = 0;

}

void NmUriServiceInterface::cancelService()

{

    NM_FUNCTION;

    delete mStartParam;

    mStartParam = NULL;

    // If the service was started as embedded, do not hide the app.

    if (!XQServiceUtil::isEmbedded()) {

        XQServiceUtil::toBackground(true);

    }

    completeRequest(mAsyncReqId, 0);

    mAsyncReqId = 0;

    // If started as service, the application must be closed now.

    if (XQServiceUtil::isService()) {

        connect(this, SIGNAL(returnValueDelivered()),

            mApplication, SLOT(delayedExitApplication()));

    }

    else {

        // Make the previous view visible again

        if (mCurrentView) {

            mCurrentView->show();

            mCurrentView = NULL;

        }

    }

}

// End of file.