/**

* 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:

* Base class of All dialogs

*/

#include <QNetworkCookie>

#include <QNetworkRequest>

#include <QNetworkReply>

#include <QWebFrame>

#include <QFile>

#include <QDesktopServices>

#include <QResizeEvent>

#include <QDebug>

#include <qmessagebox.h>

#include <QNetworkAccessManager>

#include <QPropertyAnimation>

 #include <qnetworkproxy.h>

#include <qdesktopwidget.h>

#include <qapplication.h>

//#include <qboxlayout.h>

#include "baseDialog.h"

#include "sessionSP.h"

#include "errorCodes.h"

static const QString kDefaultTitle = "Connect to Facebook";

static const QString kStringBoundary = "3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f";

static QNetworkAccessManager namanager;

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

FBDialog::FBDialog() : iSession(FBSession::session()), /*iWebView ( this  ),*/ iIgnorePageLoadCompleteEvent( false )

{

    createControls();

}

FBDialog::FBDialog(FBSession* aSession) : iSession ( aSession ), /*iWebView ( this  ) ,*/ iIgnorePageLoadCompleteEvent ( false )

{

    createControls();

}

void FBDialog::createControls()

{

	iWebView = new QWebView(this);

    iWebView->page()->setNetworkAccessManager(&namanager);

    iWebView->page()->setLinkDelegationPolicy(QWebPage::DelegateAllLinks);

    layout = new QVBoxLayout(this);

    progressbar = new QProgressBar(this);

    layout->addWidget(iWebView);

    setLayout(layout);

    progressbar->setOrientation(Qt::Horizontal);

    connect( iWebView->page(), SIGNAL(linkClicked(const QUrl &)),

                    this, SLOT(linkClicked(const QUrl &)));

    connect ( iWebView->page(), SIGNAL(loadFinished(bool)), this, SLOT(loadFinished(bool)));

    connect ( iWebView->page(), SIGNAL(loadStarted()), this, SLOT ( loadStarted()));

    connect ( iWebView->page(), SIGNAL(loadProgress(int)), this, SLOT ( loadProgress(int)));

    connect (iWebView->page()->networkAccessManager(),SIGNAL( authenticationRequired( QNetworkReply*, QAuthenticator*)),this,SLOT( slotAuthenticationRequired( QNetworkReply*, QAuthenticator*)));

    connect (iWebView->page()->networkAccessManager(),SIGNAL( sslErrors( QNetworkReply*,QList<QSslError>&)),this,SLOT( slotsslErrors( QNetworkReply*,QList<QSslError>&)) );

    connect (iWebView->page()->networkAccessManager(),SIGNAL( proxyAuthenticationRequired(QNetworkProxy&, QAuthenticator*)),this,SLOT( slotproxyAuthenticationRequired(QNetworkProxy&, QAuthenticator*)) );

}

QString FBDialog::generateURL( const QString& aUrl, const QHash<QString, QString>& aParams) const

{

    QString url ( aUrl );

    QStringList pairs;

    QHashIterator<QString, QString> i(aParams);

    while (i.hasNext()) {

        i.next();

        QUrl url (i.value());

        QString pair = i.key() + "=" + url.toEncoded();

        pairs << pair.toUtf8();

    }

    if (pairs.count())

    {

        url = url + "?" + pairs.join("&");

    }

    return url;

}

QByteArray FBDialog::generatePostBody (const QHash<QString, QString>& aParams) const

{

    QByteArray body;

    if (!aParams.count())

        return body;

    QString endLine = "\r\n--" + kStringBoundary + "\r\n", kStringBoundary;

    QString tmp = "--" + kStringBoundary + "\r\n";

    body.append(tmp.toUtf8());

    QHashIterator<QString, QString> i(aParams);

    while (i.hasNext()) {

        i.next();

        tmp = "Content-Disposition: form-data; name=\"" + i.key().toUtf8() + "\"\r\n\r\n" ;

        body.append(tmp.toUtf8());

        body.append(i.value().toUtf8());

        body.append(endLine.toUtf8());

    }

    return body;

}

void FBDialog::postDismissCleanup()

{

    //accept();

    // could also be reject()?

}

void FBDialog::dismiss (bool /*aAnimated*/) {

    dialogWillDisappear();

    iLoadingUrl.clear();

    //todo: do some animations if aAnimated == true !

    postDismissCleanup();

}

void FBDialog::dismissWithSuccess( bool aSuccess, bool aAnimated)

{

  if (aSuccess) {

        emit dialogDidSucceed();

  } else {

        emit dialogDidCancel();

  }

  dismiss(aAnimated);

}

void FBDialog::dismissWithError (const FBError& aError, bool aAnimated)

{

  emit dialogDidFailWithError( aError );

  dismiss(aAnimated);

}

void FBDialog::slotAuthenticationRequired( QNetworkReply* reply, QAuthenticator* authenticator )

	{

		QMessageBox msgbox;

		QString msg ("Error!Authentication Required");

		msgbox.setText(msg);

	}

void FBDialog::slotsslErrors( QNetworkReply* reply, const QList<QSslError>& errors  )

	{

		QMessageBox msgbox;

		QString msg ("Error!SSL Error");

		msgbox.setText(msg);

	}

void FBDialog::slotproxyAuthenticationRequired( const QNetworkProxy& proxy, QAuthenticator* authenticator  )

	{

		QMessageBox msgbox;

		QString msg ("Error!Proxy Authenticatio Required");

		msgbox.setText(msg);

	}

void FBDialog::cancel()

{}

void FBDialog::show()

{

    load();

    showMaximized();

    dialogWillAppear();

}

void FBDialog::loadURL(const QString& aUrl, QNetworkAccessManager::Operation aMethod, const QHash<QString, QString>& aGetParams, const QHash<QString, QString>&  aPostParams)

{   

    //proxysettings();

    iIgnorePageLoadCompleteEvent = false;

    QNetworkCookieJar* cookieJar = iWebView->page()->networkAccessManager()->cookieJar();

    QByteArray body;

    iLoadingUrl = generateURL(aUrl, aGetParams);

    // This "test cookie" is required by login.php, or it complains that you need to enable JavaScript

    QNetworkCookie testCookie ("test_cookie", "1");

    testCookie.setDomain ( "www.facebook.com" );

    testCookie.setPath ( "/" );

    QList<QNetworkCookie> cookieList;

    cookieList.append(testCookie);

    cookieJar->setCookiesFromUrl ( cookieList, QUrl(iLoadingUrl) );

    QUrl url (iLoadingUrl);

    QNetworkRequest request(url);

    if (aMethod == QNetworkAccessManager::PostOperation)

    {

        const QString contentType = "multipart/form-data; boundary=" + kStringBoundary;

        request.setHeader (QNetworkRequest::ContentTypeHeader, contentType);

        body = generatePostBody (aPostParams);

    }

    proxysettings();

    qDebug()<< "Check URL : " << iLoadingUrl;

    iWebView->load ( request, aMethod, body);

}

void FBDialog::proxysettings()

{

	qDebug()<<"proxysettings";

    QString httpProxy = "10.1.0.214";//ipwproxy.sasken.com

    QString httpPort = "3128";

    /*==Classes used from Network Module==*/

    QNetworkProxy proxy;

    proxy.setType(QNetworkProxy::HttpProxy);

    proxy.setHostName(httpProxy);

    proxy.setPort(httpPort.toInt());

    proxy.setUser(httpUser);

    proxy.setPassword(httpPass);

    QNetworkProxy::setApplicationProxy(proxy);

}

void FBDialog::dialogWillAppear() {}

void FBDialog::dialogWillDisappear() {}

void FBDialog::dialogDidSucceed (const QUrl& /*aUrl*/) {

  dismissWithSuccess(true,true);

}

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

void FBDialog::linkClicked ( const QUrl & url )

 {

        qDebug() << "Loading the url: " <<  url;

        proxysettings();

        iWebView->load(url);

}

void FBDialog::loadStarted()

{

    qDebug() << "Load started: " << iWebView->url();

    progressbar->setVisible(true);

}

void FBDialog::loadProgress(int progress)

{

	progressbar->setValue(progress);

}

void FBDialog::GetSessionKey(const QUrl& aUrl)

{

}

void FBDialog::loadFinished ( bool ok )

{

    qDebug() << "Load " << (ok ? "" : "un") << "successfull for: " << iWebView->url();

    progressbar->setVisible(false);

    if (ok)

    {

		QString PAth = iWebView->url().toString();

		PAth = PAth.mid(0,PAth.indexOf("?"));

		qDebug() << "Path is : " << PAth;

		if(KSuccessurl.compare(PAth) == 0){

			QByteArray URL = iWebView->url().encodedQuery();

			qDebug() << "Encoded Query is : " << URL;

			if(URL.contains("auth_token"))

				{

					iWebView->setHidden(true);

					QMessageBox msgbox;

					QString msg ("Logged in Success!!!Complete the Authorization?");

					msgbox.setText(msg);

					if(msgbox.exec() == QMessageBox::Ok){

						GetSessionKey(iWebView->url());

					}else{

					}

				}

			else

				{

					iWebView->setHidden(true);

					QMessageBox msgbox;

					QString msg ("Permissions Success!!!continue login?");

					msgbox.setText(msg);

					if(msgbox.exec() == QMessageBox::Ok){

						iWebView->setHidden(false);

						load();

					}else{

					}

				}

		}

        /*else if (URL.contains("read_stream") || URL.contains("publish_stream") || URL.contains("offline_access"))

        	{

				iWebView->setHidden(true);

				QMessageBox msgbox;

				QString msg ("Permissions Success!!!continue login?");

				msgbox.setText(msg);

				if(msgbox.exec() == QMessageBox::Ok){

					iWebView->setHidden(false);

					load();

				}else{

				}

        	}*/

    }

    else

    {

        if (iIgnorePageLoadCompleteEvent)

            return;

        FBError err;

        dismissWithError(err, true);

    }

}