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*
*  Copyright 2013 - 2022, nymea GmbH
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*  editing and translation, are reserved. The use of this project is subject to the terms of a
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*  of use of nymea GmbH, available under https://nymea.io/license
*
*  GNU General Public License Usage
*  Alternatively, this project may be redistributed and/or modified under
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#ifndef UTILS_H
#define UTILS_H

#include <QTextStream>
#include <QString>
#include <QDateTime>

inline QTextStream& qStdOut() {
    static QTextStream ts(stdout);
    return ts;
}

class Utils {

public:
    Utils() = default;

    inline static QString getDurationString(uint timestamp) {
        uint duration = QDateTime::currentDateTimeUtc().toTime_t() - timestamp;
        int seconds = static_cast<int>(duration % 60);
        duration /= 60;
        int minutes = static_cast<int>(duration % 60);
        duration /= 60;
        int hours = static_cast<int>(duration % 24);
        return QString::asprintf("%02d:%02d:%02d", hours, minutes, seconds);
    }

    inline static QString humanReadableTraffic(int bytes) {
        double dataCount = bytes;
        QStringList list;
        list << "KB" << "MB" << "GB" << "TB";

        QStringListIterator i(list);
        QString unit("B");

        while(dataCount >= 1024.0 && i.hasNext()) {
            unit = i.next();
            dataCount /= 1024.0;
        }
        return QString().setNum(dataCount,'f',2) + " " + unit;
    }
};

#endif // UTILS_H