// Shared human-readable formatting. Lane GUI.
//
// Pulled out once three places (the table model, the main window status bar, the
// progress dialog) all wanted the same "bytes / rate / eta" strings.

#pragma once

#include <QCoreApplication>
#include <QLocale>
#include <QString>

namespace velox::gui::fmt {

inline QString bytes(qint64 n) {
    if (n < 0) {
        return QStringLiteral("—");
    }
    return QLocale().formattedDataSize(n, 2, QLocale::DataSizeIecFormat);
}

inline QString rate(qint64 bytesPerSec) {
    if (bytesPerSec <= 0) {
        return QCoreApplication::translate("velox::gui::fmt", "0 B/s");
    }
    return QCoreApplication::translate("velox::gui::fmt", "%1/s")
        .arg(QLocale().formattedDataSize(bytesPerSec, 1, QLocale::DataSizeIecFormat));
}

/// HH:MM:SS, or empty for a negative (unknown) eta.
inline QString eta(qint64 secs) {
    if (secs < 0) {
        return QString();
    }
    const qint64 h = secs / 3600;
    const qint64 m = (secs % 3600) / 60;
    const qint64 s = secs % 60;
    return QStringLiteral("%1:%2:%3")
        .arg(h, 2, 10, QLatin1Char('0'))
        .arg(m, 2, 10, QLatin1Char('0'))
        .arg(s, 2, 10, QLatin1Char('0'));
}

}  // namespace velox::gui::fmt