UpdatePTUDevCtrl/worker.cpp

#include "worker.h"
#include "update.h"

#include <QCoreApplication>
#include <QApplication>
#include <QDebug>
#include <QTimer>
#include <QFileInfo>
#include <QDir>
#include <QDirIterator>
#include <QThread>
#include <QRegularExpression>
#include <QDateTime>
#include <QString>

#include "message_handler.h"
#include "plugins/interfaces.h"
#include "ismas/ismas_client.h"
#include "apism/apism_client.h"

int Worker::read1stLineOfFile(QString fileName) {
    QFile f(fileName);
    if (f.exists()) {
        if (f.open(QIODevice::ReadOnly | QIODevice::Text)) {
            QTextStream in(&f);
            in.setCodec("UTF-8");
            while(!in.atEnd()) {
                return in.readLine().toInt();
            }
        }
    }
    return -1;
}

Worker::Worker(hwinf *hw,
               int customerNr,
               int machineNr,
               int zoneNr,
               QString branchName,
               QString workingDirectory,
               bool maintenanceMode,
               bool dryRun,
               QObject *parent,
               char const *serialInterface,
               char const *baudrate)
  : m_hw(hw)
  , m_workerThread("workerThread")
  , m_apismClient(0, 0, 0, this) // TODO
  , m_customerNr(customerNr)
  , m_customerNrStr(QString("customer_") + QString::number(m_customerNr).rightJustified(3, '0'))
  , m_machineNr(machineNr)
  , m_zoneNr(zoneNr)
  , m_workingDirectory(workingDirectory)
  , m_branchName(branchName)
  , m_customerRepositoryPath(QString("https://git.mimbach49.de/GerhardHoffmann/%1.git").arg(m_customerNrStr))
  , m_customerRepository(QDir::cleanPath(m_workingDirectory + QDir::separator() + m_customerNrStr))
  , m_gc(m_customerNrStr, m_customerRepository, m_workingDirectory, m_branchName, this)
  , m_maintenanceMode(maintenanceMode)
  , m_osVersion(getOsVersion())
  , m_atbqtVersion(getATBQTVersion())
  , m_cpuSerial(getCPUSerial())
  , m_raucVersion(getRaucVersion())
  , m_opkgVersion(getOpkgVersion())
  , m_pluginVersionATBDeciceController(getPluginVersion("/opt/app/ATBAPP/plugins/libATBDeviceControllerPlugin.so"))
  , m_pluginVersionIngenicoISelf(getPluginVersion("/opt/app/ATBAPP/plugins/libIngenicoISelf_CCPlugin.so"))
  , m_pluginVersionMobilisisCalc(getPluginVersion("/opt/app/ATBAPP/plugins/libMOBILISIS_CalculatePricePlugin.so"))
  , m_pluginVersionMobilisisCalcConfig(getPluginVersion("/opt/app/ATBAPP/plugins/libMOBILISIS_CalculatePricePlugin_ConfigUi.so"))
  , m_pluginVersionPrmCalc(getPluginVersion("/opt/app/ATBAPP/plugins/libPRM_CalculatePricePlugin.so"))
  , m_pluginVersionPrmCalcConfig(getPluginVersion("/opt/app/ATBAPP/plugins/libPRM_CalculatePricePlugin_ConfigUi.so"))
  , m_pluginVersionTcpZvt(getPluginVersion("/opt/app/ATBAPP/plugins/libTCP_ZVT_CCPlugin.so"))
  , m_ismasUpdateRequests(ISMAS_UPDATE_REQUESTS)
  , m_waitForNewUpdates(this) {

    QDir::setCurrent(m_workingDirectory);

    qInfo() << "CURRENT TIME ..............." << QDateTime::currentDateTime().toString(Qt::ISODate);
    qInfo() << "OS VERSION ................." << m_osVersion;
    qInfo() << "ATBQT VERSION .............." << m_atbqtVersion;
    qInfo() << "CPU SERIAL ................." << m_cpuSerial;
    qInfo() << "CUSTOMER_NR ................" << m_customerNr;
    qInfo() << "CUSTOMER_NR_STR ............" << m_customerNrStr;
    qInfo() << "CUSTOMER_REPOSITORY_PATH ..." << m_customerRepositoryPath;
    qInfo() << "CUSTOMER_REPOSITORY ........" << m_customerRepository;
    qInfo() << "MACHINE_NR ................." << m_machineNr;
    qInfo() << "ZONE_NR ...................." << m_zoneNr;
    qInfo() << "BRANCH_NAME ................" << m_branchName;
    qInfo() << "WORKING_DIRECTORY .........." << m_workingDirectory;

    //QProcess p;
    //p.start("/bin/systemctl", {"restart", "apism"});
    //if (!p.waitForStarted(5000) || !p.waitForFinished(5000)) {
    //    qCritical() << "APISM-RESTART-FAILURE";
    //    return;
    //}

    this->moveToThread(&m_workerThread);
    m_workerThread.start();

    int cnt = 0;
    while (!m_workerThread.isRunning()) {
        if (++cnt > 5) {
            qCritical() << "starting worker thread FAILED";
            return;
        }
        QThread::sleep(1);
    }

    connect(&m_apismClient, SIGNAL(ismasResponseAvailable(QJsonObject)), this,
            SLOT(onIsmasResponseReceived(QJsonObject)));
    connect(this, SIGNAL(summarizeRepositoryStatus()), this,
            SLOT(onSummarizeRepositoryStatus()), Qt::QueuedConnection);
    connect(this, SIGNAL(sendCmdSendVersionToIsmas()), this,
            SLOT(onSendCmdSendVersionToIsmas()), Qt::QueuedConnection);
    connect(this, SIGNAL(summarizeUpload(QStringList)), this,
            SLOT(onSummarizeUpload(QStringList)), Qt::QueuedConnection);
    connect(this, SIGNAL(handleChangedFiles(QStringList)), this,
            SLOT(onHandleChangedFiles(QStringList)), Qt::QueuedConnection);
    connect(this, SIGNAL(finishUpdateProcess(bool)), this,
            SLOT(onFinishUpdateProcess(bool)), Qt::QueuedConnection);
    connect(this, SIGNAL(terminateUpdateProcess()), this,
            SLOT(onTerminateUpdateProcess()), Qt::QueuedConnection);

    connect(&m_emergencyTimer, SIGNAL(timeout()), this, SLOT(onTerminateUpdateProcess()), Qt::QueuedConnection);
    m_emergencyTimer.setSingleShot(true);
    m_emergencyTimer.start(1000 * 60 * 10);

    QDir customerRepository(m_customerRepository);
    if (!customerRepository.exists()) {
        if (m_gc.gitCloneAndCheckoutBranch()) {
            // do nothing else, not even executing opkg-commands
            emit this->finishUpdateProcess(false);
        }
    } else {
        m_update = new Update(m_hw,
                              m_customerRepository,
                              m_customerNrStr,
                              m_branchName,
                              m_workingDirectory,
                              dryRun, parent, serialInterface, baudrate);

        connect(&m_startUpdateProcess, SIGNAL(timeout()), this, SLOT(askIsmasForNewData()), Qt::QueuedConnection);
        m_startUpdateProcess.setSingleShot(true);
        m_startUpdateProcess.start(1000);

        connect(&m_waitForNewUpdates, SIGNAL(timeout()), this, SLOT(askIsmasForNewData()), Qt::QueuedConnection);
        m_waitForNewUpdates.setSingleShot(false);
    }
}

Worker::~Worker() {
    int cnt = 0;
    m_workerThread.quit();
    while (!m_workerThread.isFinished()) {
        if (!m_workerThread.wait(1000)) {
            if (++cnt > 5) {
                qCritical() << "stopping worker thread FAILED";
                return;
            }
        }
    }
    if (m_update) {
        delete m_update;
    }
}

QString Worker::getOsVersion() const {
    QString const cmd = QString("echo -n $(cat /etc/os-release | head -n 1 | cut -d'\"' -f2 | tr -d '\"')");
    Command c("bash");
    if (c.execute(m_workingDirectory, QStringList() << "-c" << cmd)) {
        return c.getCommandResult();
    }
    return "N/A";
}

QString Worker::getATBQTVersion() const {
    QString const cmd = QString("echo -n $(/opt/app/ATBAPP/ATBQT -v | head -n 2 | cut -d':' -f2)");
    Command c("bash");
    if (c.execute(m_workingDirectory, QStringList() << "-c" << cmd)) {
        return c.getCommandResult();
    }
    return "N/A";
}

QString Worker::getCPUSerial() const {
    QString const cmd = QString("echo -n $(cat /proc/cpuinfo | grep -i Serial | cut -d':' -f2)");
    Command c("bash");
    if (c.execute(m_workingDirectory, QStringList() << "-c" << cmd)) {
        return c.getCommandResult();
    }
    return "N/A";
}

QString Worker::getRaucVersion() const {
    QString const cmd = QString("echo -n $(rauc --version)");
    Command c("bash");
    if (c.execute(m_workingDirectory, QStringList() << "-c" << cmd)) {
        return c.getCommandResult();
    }
    return "N/A";
}

QString Worker::getOpkgVersion() const {
    QString const cmd = QString("echo -n $(opkg --version)");
    Command c("bash");
    if (c.execute(m_workingDirectory, QStringList() << "-c" << cmd)) {
        return c.getCommandResult();
    }
    return "N/A";
}

QString Worker::getPluginVersion(QString const &pluginFileName) const {
    QString const cmd = QString("echo -n $(strings %1 | grep \\\"Version\\\" | cut -d':' -f2 | tr -d '\"' | tr -d ',')").arg(pluginFileName);
    Command c("bash");
    if (c.execute(m_workingDirectory, QStringList() << "-c" << cmd)) {
        return c.getCommandResult();
    }
    return "N/A";
}

QStringList Worker::getDCVersion() const {
    QStringList lst = (QStringList() << "N/A" << "N/A");
    if (m_hw) {
        m_hw->dc_autoRequest(true); // turn auto-request setting on

        QByteArray const cmp(8, char(0));
        QByteArray hw(""), sw("");
        for (int i=0; i<5; ++i) {
            hw = m_hw->dc_getHWversion().toUtf8();
            sw = m_hw->dc_getSWversion().toUtf8();
            if (!hw.startsWith(cmp)) {
                lst.clear();
                qInfo() << hw << sw;
                lst << hw << sw;
                break;
            }
            QThread::sleep(1);
        }
    }
    return lst;
}

qint64 Worker::getFileSize(QString const &fileName) const {
    // fileName has to be an absolute path
    QFileInfo fInfo(fileName);
    return fInfo.exists() ? fInfo.size() : -1;
}

void Worker::onHandleChangedFiles(QStringList changedFiles) {

    QString opkg_commands;
    static const QRegularExpression re("^.*opkg_commands\\s*$");
    static const QRegularExpression comment("^\\s*#.*$");
    int idx = changedFiles.indexOf(re);
    if (idx != -1) {
        opkg_commands = changedFiles.takeAt(idx);

        qInfo() << UpdateStatus(UPDATE_STATUS::EXEC_OPKG_COMMANDS,
                                QString("EXEC OPKG-COMMANDS FOR ") + opkg_commands);

        if (QDir::setCurrent(m_customerRepository)) {
            QFile f(opkg_commands);
            if (f.exists()) {
                if (f.open(QIODevice::ReadOnly)) {
                    QTextStream in(&f);
                    while (!in.atEnd()) {
                        QString line = in.readLine();
                        if (line.indexOf(comment, 0) == -1) {
                            // found opkg command
                            QString opkgCommand = line.trimmed();
                            executeOpkgCommand(opkgCommand);
                        }
                    }
                    f.close();

                    qInfo() << UpdateStatus(UPDATE_STATUS::EXEC_OPKG_COMMANDS_SUCCESS,
                                            QString("EXECUTING OPKG-COMMANDS OK"));
                }
            }
        }
    }

    if (m_update->doUpdate(changedFiles)) { // first update the hardware
                                            // then sync the file-system
        if (QDir(m_customerRepository).exists()) {
            if (QDir::setCurrent(m_customerRepository)) {
                QString const params("--recursive             "
                                     "--progress              "
                                     "--checksum              "
                                     "--exclude=.*            "
                                     "--include=*.bin         "
                                     "--include=*.json        "
                                     "--include=opkg_commands "
                                     "--include=*.ini");
                QStringList cmds;
                cmds << QString("rsync ") + params.simplified() + " etc/ /etc";
                cmds << QString("rsync ") + params.simplified() + " opt/ /opt";

                QString cmd;
                bool error = false;
                foreach (cmd, cmds) {
                    if (!error) {
                        Command c("bash");
                        qInfo() << "EXCUTING CMD..." << cmd;
                        if (c.execute(m_customerRepository, QStringList() << "-c" << cmd)) {
                            qDebug() << c.getCommandResult();
                        } else {
                            qCritical() << "CMD" << cmd << "FAILED";
                            error = true;
                        }
                    }
                }
                if (!error) {
                    emit this->finishUpdateProcess(true);
                    return;
                }
            }
        }
    }
    onTerminateUpdateProcess();
}

void Worker::onSummarizeUpload(QStringList changedFiles) {
    QDateTime const c = QDateTime::currentDateTime();
    QDate const d = c.date();
    QTime const t = c.time();

    QString uploadHistoryFile = QString("upload_history_%1%2%3T%4%5%6.txt")
            .arg(d.year()).arg(d.month()).arg(d.day())
            .arg(t.hour()).arg(t.minute()).arg(t.second());

    QFile f(uploadHistoryFile);
    if (f.open(QIODevice::WriteOnly | QIODevice::Text)) {
        QTextStream out(&f);
        QString fName;
        foreach (fName, changedFiles) {
            QString lastCommit = m_gc.gitLastCommit(fName);
            out << fName << ":" << lastCommit << "\n";
        }
    } else {
        // TODO: error an ISMAS
    }
}

void Worker::onSummarizeRepositoryStatus() {
    // TODO
    QString dir("/opt/app/tools/atbupdate/customer_999");
    QDirIterator it(dir, QStringList() << "*.jpg",
                    QDir::Files, QDirIterator::Subdirectories);
    while (it.hasNext()) {
        qDebug() << it.next();
        if (m_gc.gitIsFileTracked(it.next())) {
            QString lastCommit = m_gc.gitLastCommit(it.next());
        }
    }

    /*
    QString repoStatusHistoryFile = QString("repo_status_history_%1%2%3T%4%5%6.txt")
            .arg(d.year()).arg(d.month()).arg(d.day())
            .arg(t.hour()).arg(t.minute()).arg(t.second());
    if (f.open(QIODevice::WriteOnly | QIODevice::Text)) {
        QTextStream out(&f);
        QString fName;
        foreach (fName, changedFiles) {
            QString lastCommit = m_gc.gitLastCommit(fName);
            out << fName << ":" << lastCommit << "\n";
        }
    } else {
        // TODO: error an ISMAS
    }
    */
}

void Worker::executeOpkgCommand(QString opkgCommand) {
    Command c(opkgCommand);
    if (c.execute(m_workingDirectory)) {
        QString const r = c.getCommandResult();
        qInfo() << UpdateStatus(UPDATE_STATUS::EXEC_OPKG_COMMAND_SUCCESS,
                                QString("EXECUTE OPKG COMMAND %1 OK: %2")
                                    .arg(opkgCommand)
                                    .arg(c.getCommandResult()));
    } else {
        qCritical() << UpdateStatus(UPDATE_STATUS::EXEC_OPKG_COMMAND_FAILURE,
                                    QString("EXECUTE OPKG COMMAND %1 FAILED")
                                        .arg(opkgCommand));
        onTerminateUpdateProcess();
        return;
    }
}

// sollte ParameterResponse heissen
void Worker::onIsmasResponseReceived(QJsonObject ismasResponse) {

    qInfo() << "IN ON_ISMAS_RESPONSE_RECEIVED" << QThread::currentThread()->objectName();

    if (!ismasResponse.isEmpty()) {
        QStringList const keys = ismasResponse.keys();
        qInfo() << UpdateStatus(UPDATE_STATUS::ISMAS_RESPONSE_RECEIVED,
                                QString("RECEIVED JSON WITH KEYS: ") + keys.join(","));

        static QRegularExpression re("^REQ_ISMASPARAMETER.*");
        if(keys.indexOf(re) >= 0) {
            m_waitForNewUpdates.stop(); // stop asking ISMAS for updates

            // sanity check: cust_nr and machine_nr of PSA correct ?
            if (keys.contains("Dev_ID", Qt::CaseInsensitive)) {
                QJsonObject const devId = ismasResponse["Dev_ID"].toObject();
                QStringList const keys = devId.keys();
                if (keys.contains("Custom_ID") && keys.contains("Device_ID")) {
                    QJsonValue const c = devId.value("Custom_ID");
                    QJsonValue const m = devId.value("Device_ID");
                    int customerNr = c.toInt(-1);
                    int machineNr = m.toInt(-1);
                    if (customerNr != m_customerNr) {
                        m_updateStatus = UPDATE_STATUS::ISMAS_UPDATE_REQUEST_FAILURE;
                        m_statusDescription
                            = QString("CUSTOMER-NR (%1) != LOCAL CUSTOMER-NR (%2)")
                                .arg(customerNr).arg(m_customerNr);
                        return;
                    }
                    if (machineNr != m_machineNr) {
                        m_statusDescription
                            = QString("MACHINE-NR (%1) != LOCAL MACHINE-NR (%2)")
                                .arg(machineNr).arg(m_machineNr);
                        m_updateStatus = UPDATE_STATUS::ISMAS_UPDATE_REQUEST_FAILURE;
                        return;
                    }
                }
            }
            // TODO: check if zone_nr is correct

            if (keys.contains("Fileupload", Qt::CaseInsensitive)) {
                QJsonObject fileUpload = ismasResponse["Fileupload"].toObject();
                QJsonValue v = fileUpload.value("TRG");
                if (!v.isNull() && !v.isUndefined()) {
                    QString const s = v.toString("");
                    if (s == "WAIT") {
                        m_ismasUpdateRequests = ISMAS_UPDATE_REQUESTS;

                        qInfo() << UpdateStatus(UPDATE_STATUS::ISMAS_UPDATE_REQUEST_SUCCESS,
                                                "DETECTED AVAILABLE ISMAS-DOWNLOAD");

                        QString const &data = m_ismasClient.updateOfPSAActivated();
                        m_apismClient.onSendCmdEventToIsmas(data);

                        emit m_gc.ismasUpdatesAvailable();
                    } else {
                        // TODO: enorm wichtig
                        qCritical() << "DID NOT RECEIVE 'WAIT' BUT" << s;
                        onTerminateUpdateProcess();
                    }
                }
            } else {
                m_updateStatus = UPDATE_STATUS::ISMAS_UPDATE_REQUEST_FAILURE;
                m_statusDescription = "NO FILEUPLOAD KEY AVAILABLE";
                return;
            }

        }
    } else {
        m_updateStatus = UPDATE_STATUS::ISMAS_UPDATE_REQUEST_FAILURE;
        m_statusDescription = "NO ISMAS RESPONSE AVAILABLE (EMPTY)";
    }
}

void Worker::onFinishUpdateProcess(bool changes) {
    Q_UNUSED(changes);

    qInfo() << "ON FINISH UPDATE PROCESS" << QThread::currentThread()->objectName();
    // m_emergencyTimer.stop();

    onSendCmdSendVersionToIsmas(); // final message to  ISMAS

    m_workerThread.quit();
    QApplication::quit();
    exit(0);
}


void Worker::onTerminateUpdateProcess() {
    qCritical() << "ON TERMINATE UPDATE PROCESS";

    onSendCmdSendVersionToIsmas(); // final message to  ISMAS

    m_workerThread.quit();
    QApplication::quit();
    exit(-1);
}

void Worker::onSendCmdSendVersionToIsmas() {

    QStringList const dcVersion = getDCVersion();
    QString const deviceControllerVersionHW = dcVersion.first();
    QString const deviceControllerVersionSW = dcVersion.last();

    qInfo() << "CURRENT DC-HW-VERSION: " << deviceControllerVersionHW;
    qInfo() << "CURRENT DC-SW-VERSION: " << deviceControllerVersionSW;

    QString const deviceControllerGitBlob = "N/A";
    QString const deviceControllerGitLastCommit = "N/A";

    PSAInstalled psaInstalled;
    QString printSysDir("/etc/psa_config");
    QString tariffSysDir("/etc/psa_tariff");
    QString absPathName;

    if (m_zoneNr != 0) {
        QString const &n = QString("%1").arg(m_zoneNr).rightJustified(2, '0');
        psaInstalled.tariff.name = QString("tariff%1.json").arg(n);
        absPathName = QDir::cleanPath(tariffSysDir + QDir::separator() + psaInstalled.tariff.name);
        psaInstalled.tariff.blob = m_gc.gitBlob(absPathName);
        psaInstalled.tariff.size = getFileSize(absPathName);
        psaInstalled.tariff.zone = m_zoneNr;
    }
    psaInstalled.tariff.project = "Szeged";
    psaInstalled.tariff.info = "N/A";
    psaInstalled.tariff.loadTime = "N/A"; // QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
    psaInstalled.tariff.version = "N/A";

    psaInstalled.hw.linuxVersion = m_osVersion;
    psaInstalled.hw.cpuSerial = m_cpuSerial;

    psaInstalled.dc.versionHW = deviceControllerVersionHW;
    psaInstalled.dc.versionSW = deviceControllerVersionSW;
    psaInstalled.dc.gitBlob = "N/A";
    psaInstalled.dc.gitLastCommit = "N/A";
    psaInstalled.dc.size = -1;

    psaInstalled.sw.raucVersion = m_raucVersion;
    psaInstalled.sw.opkgVersion = m_opkgVersion;
    psaInstalled.sw.atbQTVersion = m_atbqtVersion;

    psaInstalled.pluginVersion.deviceController = m_pluginVersionATBDeciceController;
    psaInstalled.pluginVersion.ingenicoISelfCC = m_pluginVersionIngenicoISelf;
    psaInstalled.pluginVersion.mobilisisCalculatePrice = m_pluginVersionMobilisisCalc;
    psaInstalled.pluginVersion.mobilisisCalculatePriceConfigUi = m_pluginVersionMobilisisCalcConfig;
    psaInstalled.pluginVersion.prmCalculatePrice = m_pluginVersionPrmCalc;
    psaInstalled.pluginVersion.prmCalculatePriceConfigUi = m_pluginVersionPrmCalcConfig;
    psaInstalled.pluginVersion.tcpZVT = m_pluginVersionTcpZvt;

    psaInstalled.cash.name = "DC2C_cash.json";
    absPathName = QDir::cleanPath(printSysDir + QDir::separator() + psaInstalled.cash.name);
    psaInstalled.cash.blob = m_gc.gitBlob(absPathName);
    psaInstalled.cash.size = getFileSize(absPathName);

    psaInstalled.conf.name = "DC2C_conf.json";
    absPathName = QDir::cleanPath(printSysDir + QDir::separator() + psaInstalled.conf.name);
    psaInstalled.conf.blob = m_gc.gitBlob(absPathName);
    psaInstalled.conf.size = getFileSize(absPathName);

    psaInstalled.device.name = "DC2C_device.json";
    absPathName = QDir::cleanPath(printSysDir + QDir::separator() + psaInstalled.device.name);
    psaInstalled.device.blob = m_gc.gitBlob(absPathName);
    psaInstalled.device.size = getFileSize(absPathName);

    for (int i=0; i < 32; ++i) {
        QString const &n = QString("%1").arg(i+1).rightJustified(2, '0');
        psaInstalled.print[i].name = QString("DC2C_print%1.json").arg(n);
        absPathName = QDir::cleanPath(printSysDir + QDir::separator() + psaInstalled.print[i].name);
        psaInstalled.print[i].blob = m_gc.gitBlob(absPathName);
        psaInstalled.print[i].size = getFileSize(absPathName);
    }

    QString data = m_ismasClient.updateOfPSASendVersion(psaInstalled);

    // printf("data=%s\n", data.toStdString().c_str());

    m_apismClient.onSendCmdSendVersionToIsmas(data);
}

void Worker::askIsmasForNewData() {
    if (m_maintenanceMode) {
        m_updateStatus = UPDATE_STATUS::ISMAS_EMULATE_DATA_AVAILABLE;
        QString data = m_ismasClient.setUpdatesAvailable();
        m_apismClient.emulateUpdatesAvailable(data);
    }

    //m_updateStatus = UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING;
    //m_statusDescription = "Ask ISMAS IF NEW DATA AVAILABLE";

    qInfo() << UpdateStatus(UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING,
                            QString("ASK ISMAS IF NEW DATA AVAILABLE") +
                            QString(" (%1)").arg(m_ismasUpdateRequests));

    m_apismClient.requestAvailableIsmasUpdates();

    if (--m_ismasUpdateRequests > 0) {
        // if the timer is already running, it will be stopped and restarted.
        m_waitForNewUpdates.start(10000);
        m_updateStatus = UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING;
    } else {
        m_updateStatus = UPDATE_STATUS::ISMAS_UPDATE_REQUEST_TIMEOUT;
        onTerminateUpdateProcess();
    }
}

/************************************************************************************************
 * operators
 */
QDebug operator<< (QDebug debug, UpdateStatus status) {
    switch(status.m_updateStatus) {
    case UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING:
        debug << QString("UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING: ")
              << status.m_statusDescription;
        break;
    case UPDATE_STATUS::ISMAS_UPDATE_REQUEST_SUCCESS:
        debug << QString("UPDATE_STATUS::ISMAS_UPDATE_REQUEST_SUCCESS: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST:
        debug << QString("UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST_FAILURE:
        debug << QString("UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST_FAILURE: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST_SUCCESS:
        debug << QString("UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST_SUCCESS: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::ISMAS_RESPONSE_RECEIVED:
        debug << QString("UPDATE_STATUS::ISMAS_RESPONSE_RECEIVED: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_PULL_UPDATES_SUCCESS:
        debug << QString("UPDATE_STATUS::GIT_PULL_UPDATES_REQUEST: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_PULL_UPDATES_FAILURE:
        debug << QString("UPDATE_STATUS::GIT_PULL_UPDATES_FAILURE: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::EXEC_OPKG_COMMANDS:
        debug << QString("UPDATE_STATUS::EXEC_OPKG_COMMANDS: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::EXEC_OPKG_COMMANDS_SUCCESS:
        debug << QString("UPDATE_STATUS::EXEC_OPKG_COMMANDS_SUCCESS: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::EXEC_OPKG_COMMAND_SUCCESS:
        debug << QString("UPDATE_STATUS::EXEC_OPKG_COMMAND_SUCCESS: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::EXEC_OPKG_COMMAND_FAILURE:
        debug << QString("UPDATE_STATUS::EXEC_OPKG_COMMAND_FAILURE: ")
              << status.m_statusDescription;
    break;
    default:;
    }
    return debug;
}

QString& operator<< (QString& str, UpdateStatus status) {
    switch(status.m_updateStatus) {
    case UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING:
        str = QString("UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::ISMAS_UPDATE_REQUEST_SUCCESS:
        str = QString("UPDATE_STATUS::ISMAS_UPDATE_REQUEST_SUCCESS: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST:
        str = QString("UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST_FAILURE:
        str = QString("UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST_FAILURE: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST_SUCCESS:
        str = QString("UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST_SUCCESS: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_PULL_UPDATES_SUCCESS:
        str = QString("UPDATE_STATUS::GIT_PULL_UPDATES_SUCCESS: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_PULL_UPDATES_FAILURE:
        str = QString("UPDATE_STATUS::GIT_PULL_UPDATES_FAILURE: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::ISMAS_RESPONSE_RECEIVED:
        str = QString("UPDATE_STATUS::ISMAS_RESPONSE_RECEIVED: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::EXEC_OPKG_COMMANDS:
        str = QString("UPDATE_STATUS::EXEC_OPKG_COMMANDS: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::EXEC_OPKG_COMMANDS_SUCCESS:
        str = QString("UPDATE_STATUS::EXEC_OPKG_COMMANDS_SUCCESS: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::EXEC_OPKG_COMMAND_SUCCESS:
        str = QString("UPDATE_STATUS::EXEC_OPKG_COMMAND_SUCCESS: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::EXEC_OPKG_COMMAND_FAILURE:
        str = QString("UPDATE_STATUS::EXEC_OPKG_COMMAND_FAILURE: ");
        str += status.m_statusDescription;
    break;
    default:;
    }
    return str;
}