/**

* Copyright (c) 2010 Sasken Communication Technologies Ltd.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "{License}"

* which accompanies  this distribution, and is available

* at the URL "{LicenseUrl}".

*

* Initial Contributors:

* Narasimhulu Kavadapu, Sasken Communication Technologies Ltd - Initial contribution

*

* Contributors:

*

* Description:

* Login Dialog class of Authentication Application

*/

#include "authAppConstants.h"

#include "sessionSP.h"

#include "errorCodes.h"

#include "loginDialog.h"

///////////////////////////////////////////////////////////////////////////////////////////////////

// global

static const QString kLoginURL = "http://www.facebook.com/login.php";

///////////////////////////////////////////////////////////////////////////////////////////////////

void FBLoginDialog::connectToGetSession(const QString& aToken)

{

    iGetSessionRequest = FBRequest::requestWithSession(iSession);

    connect(iGetSessionRequest, SIGNAL(requestDidLoad(QVariant)), this, SLOT(requestDidLoad(QVariant)));

    connect(iGetSessionRequest, SIGNAL(requestFailedWithNetworkError(QNetworkReply::NetworkError)), this, SLOT(requestFailedWithNetworkError(QNetworkReply::NetworkError)));

    connect(iGetSessionRequest, SIGNAL(requestFailedWithFacebookError(FBError)), this, SLOT(requestFailedWithFacebookError(FBError)));

    Dictionary params;

    params["auth_token"] = aToken;

    if (iSession->apiSecret().length())

    {

        params["generate_session_secret"]="1";

    }

    if (iSession->getSessionProxy().length())

    {

        iGetSessionRequest->post(iSession->getSessionProxy(),params);

    }

    else

    {

        iGetSessionRequest->call("facebook.auth.getSession", params);

    }

}

void FBLoginDialog::loadLoginPage()

{

    Dictionary getParams, postParams;

    getParams["fbconnect"] = "1";

    #ifdef __WINSCW__ 

		getParams["connect_display"] = "touch";

	#else

		getParams["connect_display"] = "popup";

	#endif

    getParams["api_key"] = iSession->apiKey();

    getParams["next"] = KSuccessurl;

    getParams["cancel_url"] = "http://www.facebook.com/connect/login_failure.html";

    getParams["req_perms"] = "read_stream,publish_stream,offline_access";

    loadURL(kLoginURL,QNetworkAccessManager::GetOperation, getParams, postParams);

}

///////////////////////////////////////////////////////////////////////////////////////////////////

FBLoginDialog::FBLoginDialog() : FBDialog () {}

FBLoginDialog::FBLoginDialog(FBSession* aSession) : FBDialog(aSession) {}

///////////////////////////////////////////////////////////////////////////////////////////////////

// FBDialog

void FBLoginDialog::load()

{

    loadLoginPage();

}

void FBLoginDialog::dialogWillDisappear()

{

  iGetSessionRequest->cancel();

  if (!iSession->isConnected())

  {

      iSession->cancelLogin();

  }

}

void FBLoginDialog::GetSessionKey(const QUrl& aUrl)

{

    const QString authToken = "auth_token=";

    const QString url ( aUrl.toString() );

    int start = url.indexOf(authToken);

    if (start != -1)

    {

        QString token;

        int end = url.indexOf("&", start);

        int delta = start + authToken.size() + 1;

        if (end != -1)

        {

            token = url.mid(delta, end - delta );

        }

        else

        {

            token = url.right(url.size() - delta + 1);

        }

        connectToGetSession(token);

    }

}

///////////////////////////////////////////////////////////////////////////////////////////////////

// slots for signals from FBRequest

void FBLoginDialog::requestDidLoad(const QVariant& aResult)

{

    bool conversionError = false;

    QVariantHash object = aResult.toHash();

    QString sessionKey = object.value("session_key").toString();

    QString sessionSecret = object.value("secret").toString();

    QVariant ex = object.value("expires");

    uint expires = object.value("expires").toUInt(&conversionError);

    QDateTime expiration; expiration.setTime_t( expires );

    iSession->beginSession(sessionKey, sessionSecret,expiration);

    iSession->resume();

    dismissWithSuccess(true, true);

}

void FBLoginDialog::requestFailedWithFacebookError (const FBError& aCode )

{

    dismissWithError(aCode, true);

}

void FBLoginDialog::requestFailedWithNetworkError( QNetworkReply::NetworkError aCode )

{

    dismissWithError(aCode, true);

}