#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 <QMessageBox>
#include <QPushButton>
#include <QJsonParseError>

#include <thread>

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

QString const Worker::UPDATE_STEP_OK(" [  ok]");
QString const Worker::UPDATE_STEP_DONE(" [done]");
QString const Worker::UPDATE_STEP_FAIL(" [fail]");
QString const Worker::UPDATE_STEP_SUCCESS(" [SUCCESS]");

Worker::Worker(hwinf *hw,
               int customerNr,
               int machineNr,
               int zoneNr,
               QString branchName,
               QString workingDirectory,
               bool dryRun,
               QObject *parent,
               char const *serialInterface,
               char const *baudrate)
  : m_hw(hw)
  , m_workerThread("workerThread")
  , 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_update(new Update(m_hw, this, m_customerRepository, m_customerNrStr, m_branchName,
                        m_workingDirectory, dryRun, parent, serialInterface, baudrate))
  , m_gc(m_customerNrStr, m_customerRepository, m_workingDirectory, m_branchName, this)
  , 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)
  , m_filesToUpdate()
  , m_updateProcessRunning(false)
  , m_returnCode(0) {

    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;

    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);
    }
}

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;
    }
}

static std::once_flag once;
void Worker::update() {
    std::call_once(once, &Worker::privateUpdate, this);
}

void Worker::privateUpdate() {
    // user should not start the update process several times
    QPushButton *start = qobject_cast<QPushButton *>(QObject::sender());
    start->setEnabled(false);

    emit stopStartTimer();
    emit disableExit();
    m_updateProcessRunning = true;

    bool sentIsmasLastVersionNotification = false;

    m_returnCode = -1;
    QDir customerRepository(m_customerRepository);
    if (!customerRepository.exists()) {
        if (m_gc.gitCloneAndCheckoutBranch()) {
            emit appendText("\nInitializing customer environment", UPDATE_STEP_DONE);

            m_updateStatus = UpdateStatus(UPDATE_STATUS::UPDATE_PROCESS_SUCCESS,
                                  QString("CLONED AND CHECKED OUT: ") + m_customerRepository);

            IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                    QString("#M=APISM#C=CMD_EVENT#J=") +
                        m_ismasClient.cloneAndCheckoutCustomerRepository(
                            m_updateStatus.m_statusDescription));

            IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                    QString("#M=APISM#C=CMD_EVENT#J=") +
                        m_ismasClient.updateOfPSASucceeded(""));

            emit appendText(QString(""), UPDATE_STEP_SUCCESS);

            emit setProgress(100);
            m_ismasClient.setProgressInPercent(100);
            IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                QString("#M=APISM#C=CMD_EVENT#J=") + m_ismasClient.updateOfPSAActivated());

            m_returnCode = 0;
        }
    } else {
        qCritical() << "CHECKOUT BRANCH...";
        // checkout branch
        if (m_gc.gitCheckoutBranch()) {
            int progress = 10;
            m_ismasClient.setProgressInPercent(progress);
            m_updateStatus = UpdateStatus(UPDATE_STATUS::GIT_CHECKOUT_BRANCH,
                                  QString("CHECKED OUT BRANCH: ") + m_gc.branchName());
            IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                    QString("#M=APISM#C=CMD_EVENT#J=") +
                        m_ismasClient.checkoutBranch(
                            m_updateStatus.m_statusDescription, ""));

            emit setProgress(progress);
            if (backendConnected()) {
                progress = 20;
                emit setProgress(progress);
                m_ismasClient.setProgressInPercent(progress);
                if (updateTriggerSet()) {
                    emit setProgress(progress);
                    m_ismasClient.setProgressInPercent(progress);
                    if (customerEnvironment()) {
                        emit setProgress(progress);
                        m_ismasClient.setProgressInPercent(progress);
                        if (filesToUpdate()) {
                            emit setProgress(progress);
                            m_ismasClient.setProgressInPercent(progress);
                            if (updateFiles(progress)) {
                                emit setProgress(progress);
                                m_ismasClient.setProgressInPercent(progress);
                                if (syncCustomerRepositoryAndFS()) {
                                    emit setProgress(progress);
                                    m_ismasClient.setProgressInPercent(progress);
                                    if (sendIsmasLastVersionNotification()) {
                                        emit setProgress(progress);
                                        m_ismasClient.setProgressInPercent(progress);
                                        sentIsmasLastVersionNotification = true;
                                        if (saveLogFile()) {
                                            emit setProgress(progress);
                                            m_ismasClient.setProgressInPercent(progress);
                                            emit appendText(QString(""), UPDATE_STEP_SUCCESS);

                                            // mark update as activated -> this resets the WAIT button
                                            progress = 100;
                                            emit setProgress(progress);
                                            m_ismasClient.setProgressInPercent(progress);
                                            IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                                                QString("#M=APISM#C=CMD_EVENT#J=") +
                                                    m_ismasClient.updateOfPSAActivated());

                                            m_returnCode = 0;
                                        } else {
                                            m_returnCode = -9;
                                        }
                                    } else {
                                        m_returnCode = -8;
                                    }
                                } else {
                                    m_returnCode = -7;
                                }
                            } else {
                                m_returnCode = -6;
                            }
                        } else {
                            m_returnCode = -5;
                        }
                    } else {
                        m_returnCode = -4;
                    }
                } else {
                    m_returnCode = -3;
                }
            } else {
                m_returnCode = -2;
            }
        } else {
            m_returnCode = -1;
        }
    }

    emit setProgress(100);
    m_ismasClient.setProgressInPercent(100);

    if (!sentIsmasLastVersionNotification) {
        // try even if the backend is not connected
        sendIsmasLastVersionNotification();
    }

    if (m_returnCode != 0) {
        emit appendText(QString("Update process "), UPDATE_STEP_FAIL);
    }

    m_updateProcessRunning = false;
    emit enableExit();
    emit restartExitTimer();
}

bool Worker::backendConnected() {
    static int repeat = 0;

    if (repeat < 3) {
        qCritical() << "In backendConnected() -> #M=APISM#C=REQ_SELF#J={}";
        std::optional<QString> result
            = IsmasClient::sendRequestReceiveResponse(
                IsmasClient::APISM::DIRECT_PORT, "#M=APISM#C=REQ_SELF#J={}");
        if (result) {
            QString msg  = result.value();
            qCritical() << "In backendConnected() -> APISM response" << msg;
            QJsonParseError parseError;
            QJsonDocument document(QJsonDocument::fromJson(msg.toUtf8(), &parseError));
            if (parseError.error != QJsonParseError::NoError) {
                qCritical() << "(2) INVALID JSON MSG: PARSING FAILED (msg=" << msg << "):"
                            << parseError.error << parseError.errorString();
                return false;
            }
            if (!document.isObject()) {
                qCritical() << "FILE IS NOT A JSON OBJECT!";
                return false;
            }

            QJsonObject obj = document.object();
            QStringList keys = obj.keys();
            for (QString const& key : keys ) {
                if (key.contains("CMD_GET_APISMSTATUS_RESPONSE")) {
                    QJsonValue v = obj.value(key);
                    if (v.isObject()) {
                        obj = v.toObject();
                        bool ismas = obj.value("ISMAS").toBool();
                        QString status = obj.value("Broker").toString();

                        qCritical() << "In backendConnected() STATUS" << status;

                        if (ismas) {
                            if (status == "Connected") {
                                // do not send, as this would result in a corrupted wait button
                                // but update the user-interface
                                emit appendText("\nBackend connected", UPDATE_STEP_OK);
                                return true;
                            }
                        }
                        if (status.startsWith("Connecting") || status.startsWith("Re-Connecting")) {
                            QThread::sleep(1);
                            ++repeat;
                            return backendConnected();
                        }
                        emit appendText("\nBackend connected", UPDATE_STEP_FAIL);
                        emit showErrorMessage("Error", "Backend not available");
                    }
                }
            }
        }
    }
    qCritical() << "In backendConnected() ERROR";

    m_updateStatus = UpdateStatus(UPDATE_STATUS::BACKEND_NOT_CONNECTED,
                                  QString("NO BACKEND CONNECTION"));
    IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
        QString("#M=APISM#C=CMD_EVENT#J=") +
            m_ismasClient.errorBackendNotConnected(m_updateStatus.m_statusDescription, ""));

    return false;
}

bool Worker::updateTriggerSet() {
// nmap  -Pn 62.141.45.68 -p 8883
// Host is up (0.053s latency).
//
// PORT     STATE SERVICE
// 8883/tcp open  secure-mqtt

    QString triggerValue("");

    if (std::optional<QString> result
            = IsmasClient::sendRequestReceiveResponse(
                IsmasClient::APISM::DIRECT_PORT, "#M=APISM#C=REQ_ISMASPARAMETER#J={}")) {
        QString msg = result.value();
        QJsonParseError parseError;
        QJsonDocument document(QJsonDocument::fromJson(msg.toUtf8(), &parseError));
        if (parseError.error != QJsonParseError::NoError) {
            qCritical() << "(2) INVALID JSON MSG: PARSING FAILED (msg=" << msg << "):"
                        << parseError.error << parseError.errorString();
            emit showErrorMessage("check update trigger",
                                  QString("invalid json ") + msg.mid(0, 20));
            return false;
        }
        if (!document.isObject()) {
            qCritical() << "FILE IS NOT A JSON OBJECT!";
            emit showErrorMessage("check update trigger",
                                  QString("not a json object") + msg);
            return false;
        }

        QJsonObject obj = document.object();
        // sanity check: cust_nr and machine_nr of PSA correct ?
        if (obj.contains("Dev_ID")) {
            QJsonValue v = obj.value("Dev_ID");
            if (v.isObject()) {
                QJsonObject obj = v.toObject();
                if (obj.contains("Custom_ID") && obj.contains("Device_ID")) {
                    QJsonValue const c = obj.value("Custom_ID");
                    QJsonValue const m = obj.value("Device_ID");
                    int customerNr = c.toInt(-1);
                    int machineNr = m.toInt(-1);
                    if (customerNr != m_customerNr) {
                        m_updateStatus = UpdateStatus(UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_FAILURE,
                                                      QString("CUSTOMER-NR (%1) != LOCAL CUSTOMER-NR (%2)")
                                                        .arg(customerNr).arg(m_customerNr));
                        emit showErrorMessage("check update trigger", m_updateStatus.m_statusDescription);

                        IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                            QString("#M=APISM#C=CMD_EVENT#J=") +
                                m_ismasClient.sanityCheckFailed(IsmasClient::RESULT_CODE::INSTALL_ERROR,
                                                                m_updateStatus.m_statusDescription));
                        return false;
                    }
                    if (machineNr != m_machineNr) {
                        m_updateStatus = UpdateStatus(UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_FAILURE,
                                                      QString("MACHINE-NR (%1) != LOCAL MACHINE-NR (%2)")
                                                        .arg(machineNr).arg(m_machineNr));
                        emit showErrorMessage("check update trigger", m_updateStatus.m_statusDescription);

                        IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                            QString("#M=APISM#C=CMD_EVENT#J=") +
                                m_ismasClient.sanityCheckFailed(IsmasClient::RESULT_CODE::INSTALL_ERROR,
                                                                m_updateStatus.m_statusDescription));
                        return false;
                    }
                }
            }
        }
        if (obj.contains("Fileupload")) {
            QJsonValue v = obj.value("Fileupload");
            if (v.isObject()) {
                obj = v.toObject();
                if (obj.contains("TRG")) {
                    v = obj.value("TRG");
                    if (v.isString()) {
                        triggerValue = v.toString();
                        if (triggerValue == "WAIT") {
                            emit appendText("\nUpdate trigger set", UPDATE_STEP_OK);

                            m_updateStatus = UpdateStatus(UPDATE_STATUS::UPDATE_TRIGGER_SET,
                                QString("UPDATE TRIGGER SET. CONTINUE. "));

                            IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                                QString("#M=APISM#C=CMD_EVENT#J=") +
                                    m_ismasClient.updateTriggerSet(m_updateStatus.m_statusDescription, ""));

                            return true;
                        } else {
                            emit showErrorMessage("check update trigger",
                                                  QString ("TRG key=<") + triggerValue
                                                  + ">\n(reset download button?)");
                        }
                    }
                } else {
                    emit showErrorMessage("check update trigger", "TRG key not contained");
                }
            } else {
                emit showErrorMessage("check update trigger", "Fileupload not a json-object");
            }
        }
    } else {
        emit showErrorMessage("check update trigger", "no ISMAS response");
    }

    m_updateStatus = UpdateStatus(UPDATE_STATUS::UPDATE_TRIGGER_NOT_SET_OR_WRONG,
                                  QString("UPDATE-TRIGGER-NOT-SET-OR-WRONG: VALUE=(") +
                                  triggerValue + ")");
    IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
        QString("#M=APISM#C=CMD_EVENT#J=") +
            m_ismasClient.errorUpdateTrigger(m_updateStatus.m_statusDescription, ""));
    return false;
}

bool Worker::customerEnvironment() {
    if (QDir(m_customerRepository).exists()) {
        if (m_gc.gitCheckoutBranch()) {
            emit appendText("\nPrepare customer environment", UPDATE_STEP_DONE);
            m_updateStatus = UpdateStatus(UPDATE_STATUS::GIT_CHECKOUT_BRANCH,
                                    QString("CHECKED-OUT BRANCH ") + m_gc.branchName());

            IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                                    QString("#M=APISM#C=CMD_EVENT#J=") +
                                        m_ismasClient.checkoutBranch(m_updateStatus.m_statusDescription, ""));
            return true;
        } else {
            emit showErrorMessage("cust-env",
                                  QString("Checkout ") + m_customerRepository + " failed");
        }
    } else {
        emit showErrorMessage("cust-env", m_customerRepository + " does not exist");
    }
    return false;
}

bool Worker::filesToUpdate() {
    if (std::optional<QString> changes = m_gc.gitFetch()) {
        m_updateStatus = UpdateStatus(UPDATE_STATUS::GIT_FETCH_UPDATES,
                                        QString("FETCHING OF ") + m_customerRepositoryPath +
                                        QString(" INTO ") + m_customerRepository);

        if (std::optional<QStringList> changedFileNames = m_gc.gitDiff(changes.value())) {
            m_filesToUpdate = changedFileNames.value();
            int const size = m_filesToUpdate.size();
            if (size > 1) {
                emit appendText(QString("\nFound %1 files to update ").arg(size), UPDATE_STEP_DONE);
            } else {
                emit appendText(QString("\nFound 1 file to update "), UPDATE_STEP_DONE);
            }
            if (!m_gc.gitPull()) {
                emit showErrorMessage("files to update", "pulling files failed");
            }
            return true;
        } else {
            emit showErrorMessage("files to update", "no files to update (checked-in any files?)");
        }
    } else {
        emit showErrorMessage("files to update",
                              QString("no changes in ") + m_customerRepository +
                              " (checked-in any files?)");
    }
    return false;
}

bool Worker::updateFiles(quint8 percent) {
    QStringList filesToDownload;
    m_displayIndex = 0;
    for (int i = 0; i < m_filesToUpdate.size(); ++i) {
        QString fName = m_filesToUpdate.at(i);
        if (fName.contains("opkg_commands", Qt::CaseInsensitive)) {
            // execute opkg commands
            if (QDir::setCurrent(m_customerRepository)) {
                QFile f(fName);
                if (f.exists()) {
                    if (f.open(QIODevice::ReadOnly)) {
                        QTextStream in(&f);
                        int cmdCount = 0;
                        while (!in.atEnd()) {
                            QString line = in.readLine();
                            static const QRegularExpression comment("^\\s*#.*$");
                            if (line.indexOf(comment, 0) == -1) {
                                // found opkg command
                                QString opkgCommand = line.trimmed();
                                executeOpkgCommand(opkgCommand);
                                ++cmdCount;

                                m_ismasClient.setProgressInPercent(++percent);
                                m_updateStatus = UpdateStatus(UPDATE_STATUS::EXEC_OPKG_COMMAND,
                                                    QString("EXEC OPKG-COMMAND ") + opkgCommand);
                                IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                                        QString("#M=APISM#C=CMD_EVENT#J=") +
                                            m_ismasClient.execOpkgCommand(m_updateStatus.m_statusDescription, ""));
                            }
                        }
                        f.close();
                        if (cmdCount > 0) {
                            m_displayIndex = 1;
                            emit appendText(QString("\n(") + QString("%1").arg(m_displayIndex).rightJustified(2, ' ') + QString(")")
                                          + QString(" Update opkg pakets "), UPDATE_STEP_DONE);
                        }
                    }
                }
            }
        } else
        if (fName.contains("print", Qt::CaseInsensitive)) {
            filesToDownload << fName;  // download printer-config-files
        } else
        if (fName == "dc2c.bin") {
            filesToDownload << fName; // download device controller
        }
    }

    if (filesToDownload.size() > 0) {
        qCritical() << "FILES_TO_WORK_ON" << filesToDownload;
    }

    return m_update->doUpdate(m_displayIndex, filesToDownload);
}

bool Worker::syncCustomerRepositoryAndFS() {
    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() << "EXECUTING CMD..." << cmd;
                    if (c.execute(m_customerRepository, QStringList() << "-c" << cmd)) {
                        QStringList result = c.getCommandResult().split('\n');
                        for (int i = 0; i < result.size(); ++i) {
                            qCritical() << result.at(i);
                        }
                        qCritical() << "SUCCESS";
                    } else {
                        qCritical() << "CMD" << cmd << "FAILED";
                        qCritical() << c.getCommandResult().split('\n');
                        error = true;
                    }
                }
            }
            if (!error) {
                emit appendText(QString("\nSync customer environment with filesystem "),
                            UPDATE_STEP_DONE);
                return true;
            }
        }
    }
    return false;
}

bool Worker::sendIsmasLastVersionNotification() {
    IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
            QString("#M=APISM#C=CMD_SENDVERSION#J=") +
                m_ismasClient.updateOfPSASendVersion(getPSAInstalled()));
    emit appendText(QString("\nSend last version info "), UPDATE_STEP_DONE);
    return true;
}

bool Worker::saveLogFile() {
    return true;
}
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;
}

bool 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()));
        return true;
    } else {
        qCritical() << UpdateStatus(UPDATE_STATUS::EXEC_OPKG_COMMAND_FAILURE,
                                    QString("EXECUTE OPKG COMMAND %1 FAILED")
                                        .arg(opkgCommand));
    }
    return false;
}

PSAInstalled Worker::getPSAInstalled() {
    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);
    }

    return psaInstalled;
}

QString Worker::sendCmdSendVersionToIsmas() {

    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);
    }

    // QByteArray data = "#M=APISM#C=CMD_SENDVERSION#J=";
    return m_ismasClient.updateOfPSASendVersion(psaInstalled);
}

/************************************************************************************************
 * operators
 */
QDebug operator<< (QDebug debug, UpdateStatus status) {
    switch(status.m_updateStatus) {
    case UPDATE_STATUS::UPDATE_PROCESS_SUCCESS:
        debug << QString("UPDATE_STATUS::UPDATE_PROCESS_SUCCESS: ")
              << status.m_statusDescription;
        break;
    case UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_PENDING:
        debug << QString("UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_PENDING: ")
              << status.m_statusDescription;
        break;
    case UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_FAILURE:
        debug << QString("UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_FAILURE: ")
              << status.m_statusDescription;
        break;
    case UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_TIMEOUT:
        debug << QString("UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_: ")
              << status.m_statusDescription;
        break;
    case UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_SUCCESS:
        debug << QString("UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_SUCCESS: ")
              << status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_FETCH_UPDATES:
        debug << QString("UPDATE_STATUS::GIT_FETCH_UPDATES: ")
              << 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::UPDATE_PROCESS_SUCCESS:
        str = QString("UPDATE_STATUS::UPDATE_PROCESS_SUCCESS: ");
        str += status.m_statusDescription;
        break;
    case UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_PENDING:
        str = QString("UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_PENDING: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_SUCCESS:
        str = QString("UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_SUCCESS: ");
        str += status.m_statusDescription;
    break;
    case UPDATE_STATUS::GIT_FETCH_UPDATES:
        str = QString("UPDATE_STATUS::GIT_FETCH_UPDATES: ");
        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;
}