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#ifndef DATATRANSFERER_H

#define DATATRANSFERER_H

#include <QObject>

#include <QString>

#include <QNetworkReply>

#include <QNetworkAccessManager>

#include <QTcpSocket>

#include <QHttp>

#include <QDebug>

// Interface-class for data transferring object

class DataTransferer : public QObject

{

    Q_OBJECT

public:

    explicit DataTransferer(QObject *parent = 0);

    virtual ~DataTransferer() {

        if (m_dataTransferOngoing) {

            qDebug("BearerEx Warning: dataobjects transfer was ongoing when destroyed.");

        }

    }

    virtual bool transferData() = 0;

    bool dataTransferOngoing();

signals:

    void finished(quint32 errorCode, qint64 dataReceived, QString errorType);

public slots:

protected:

    bool m_dataTransferOngoing;

};

// Specializations/concrete classes

class DataTransfererQTcp : public DataTransferer

{

    Q_OBJECT

public:

    DataTransfererQTcp(QObject* parent = 0);

    ~DataTransfererQTcp();

    virtual bool transferData();

public slots:

    void readyRead();

    void error(QAbstractSocket::SocketError socketError);

    void connected();

private:

    QTcpSocket m_qsocket;

};

class DataTransfererQNam : public DataTransferer

{

    Q_OBJECT

public:

    DataTransfererQNam(QObject* parent = 0);

    ~DataTransfererQNam();

    virtual bool transferData();

public slots:

    void replyFinished(QNetworkReply* reply);

private:

    QNetworkAccessManager m_qnam;

};

class DataTransfererQHttp : public DataTransferer

{

    Q_OBJECT

public:

    DataTransfererQHttp(QObject* parent = 0);

    ~DataTransfererQHttp();

    virtual bool transferData();

public slots:

    void done(bool error);

private:

    QHttp m_qhttp;

};

#endif // DATATRANSFERER_H