/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation, version 2.1 of the License.

* 

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU Lesser General Public License for more details.

*

* You should have received a copy of the GNU Lesser General Public License

* along with this program.  If not, 

* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

*

* Description:

*

*/

#include <QRegExp>

#include "UiUtil.h"

#define GOOGLE_SEARCH_ENGINE "http://www.google.com/search?q="

namespace WRT {

QString UiUtil::loadFiletoString(const QString &name)

{

    QFile file(name);

    file.open(QFile::ReadOnly);

    QString fileString = QLatin1String(file.readAll());

    file.close();

    return fileString;

}

QUrl UiUtil::searchUrl(const QString &string)

{

	QString urlStr = string.trimmed();

	QUrl url(QLatin1String(GOOGLE_SEARCH_ENGINE) + urlStr, QUrl::TolerantMode);

    if(url.isValid())

		return url;

}

QUrl UiUtil::guessUrlFromString(const QString &string)

{

    QString urlStr = string.trimmed();

    QRegExp schemaTest(QLatin1String("^[a-zA-Z]+\\:.*"));

    // Check if it looks like a qualified URL. Try parsing it and see.

    bool hasSchema = schemaTest.exactMatch(urlStr);

    bool hasSpaces = urlStr.contains(" ");

    if (hasSchema) {

        if(!hasSpaces){

			QUrl url(urlStr, QUrl::TolerantMode);

			if (url.isValid())

				return url;

		}

		else{

			if(urlStr.contains("https://")){

				urlStr.remove("https://" ,Qt::CaseInsensitive);

			}

			else if(urlStr.contains("http://")){

				urlStr.remove("http://" ,Qt::CaseInsensitive);

			}

			else if(urlStr.contains("rtsp://")){

				urlStr.remove("rtsp://" ,Qt::CaseInsensitive);

			}

			QUrl url(QLatin1String(GOOGLE_SEARCH_ENGINE) + urlStr, QUrl::TolerantMode);

			if(url.isValid())

				return url;

		}

    }

    // Might be a file.

    if (QFile::exists(urlStr))

        return QUrl::fromLocalFile(urlStr);

    // Might be a shorturl - try to detect the schema.

    if (!hasSchema) {

        int dotIndex = urlStr.indexOf(QLatin1Char('.'));

        if (dotIndex != -1 && !hasSpaces) {

            QUrl url;

            urlStr.endsWith(".") ? ( url.setUrl(QLatin1String("http://") + urlStr + QLatin1String("com"), QUrl::TolerantMode) ) : ( url.setUrl(QLatin1String("http://") + urlStr, QUrl::TolerantMode) );

            if (url.isValid())

                return url;

        }

        //The string parameter is simple text and a search should be performed.

		else {

            QUrl url(QLatin1String(GOOGLE_SEARCH_ENGINE) + urlStr, QUrl::TolerantMode);

            if(url.isValid())

                return url;

        }

    }

    // Fall back to QUrl's own tolerant parser.

    return QUrl(string, QUrl::TolerantMode);

}

}