#include "PTUSystem.h"

#include <QDebug>
#include <QDir>
#include <QFileInfo>


PTUSystem::PTUSystem(QObject *parent) : QObject(parent)
{

}




quint16 PTUSystem::readCustomerNumber()
{
    QString resultFilename;
    QStringList fileNameList;
    fileNameList << "/mnt/system_data/cust_nr"
                 << "/etc/cust_nr";
    for (const auto& filename : fileNameList) {
        if (QFileInfo(filename).isReadable()) {
            resultFilename = filename;
            break;
        }
    }

    QString resultString = PTUSystem::readConfigString(resultFilename);
    return static_cast<quint16>(resultString.toInt());
}

quint16 PTUSystem::readMachineNumber()
{
    QString resultFilename;
    QStringList fileNameList;
    fileNameList << "/mnt/system_data/machine_nr"
                 << "/etc/machine_nr";
    for (const auto& filename : fileNameList) {
        if (QFileInfo(filename).isReadable()) {
            resultFilename = filename;
            break;
        }
    }

    QString resultString = PTUSystem::readConfigString(resultFilename);
    return static_cast<quint16>(resultString.toInt());
}

quint16 PTUSystem::readZoneNumber()
{
    QString resultFilename;
    QStringList fileNameList;
    fileNameList << "/mnt/system_data/zone_nr"
                 << "/etc/zone_nr";
    for (const auto& filename : fileNameList) {
        if (QFileInfo(filename).isReadable()) {
            resultFilename = filename;
            break;
        }
    }

    QString resultString = PTUSystem::readConfigString(resultFilename);
    return static_cast<quint16>(resultString.toInt());
}

quint16 PTUSystem::readGroupNumber()
{
    QString resultFilename;
    QStringList fileNameList;
    fileNameList << "/mnt/system_data/group_nr"
                 << "/etc/group_nr";
    for (const auto& filename : fileNameList) {
        if (QFileInfo(filename).isReadable()) {
            resultFilename = filename;
            break;
        }
    }

    QString resultString = PTUSystem::readConfigString(resultFilename);
    return static_cast<quint16>(resultString.toInt());
}


QString PTUSystem::readConfigString(const QString & filename)
{
    QFileInfo fileinfo(filename);

    if (! fileinfo.isReadable() ) {
        qDebug() << "PTUSystem::readConfigString(): \"" << filename << "\" is not readable";
        return "";
    }

    QFile file(filename);

    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
        qDebug() << "PTUSystem::readConfigString() cannot open file: " << filename;
        return "";
    }

    QTextStream in(&file);

    QString stringValue = in.readLine(100);
    qDebug() << "PTUSystem::readConfigString() stringValue = " << stringValue;

    file.close();

    return stringValue;
}