Worker is the work-horse of the update process.

Using ismas-client it sends requests to APISM and gets results in a synchronous fashion.
Add previous emits to git client and apism client have been removed.

worker.cpp

@@ -12,25 +12,20 @@
 #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"
-#include "apism/apism_client.h"
 
-int Worker::read1stLineOfFile(QString fileName) {
+QString const Worker::UPDATE_STEP_OK(" [  ok]");
-    QFile f(fileName);
+QString const Worker::UPDATE_STEP_DONE(" [done]");
-    if (f.exists()) {
+QString const Worker::UPDATE_STEP_FAIL(" [fail]");
-        if (f.open(QIODevice::ReadOnly | QIODevice::Text)) {
+QString const Worker::UPDATE_STEP_SUCCESS(" [SUCCESS]");
-            QTextStream in(&f);
-            in.setCodec("UTF-8");
-            while(!in.atEnd()) {
-                return in.readLine().toInt();
-            }
-        }
-    }
-    return -1;
-}
 
 Worker::Worker(hwinf *hw,
                int customerNr,
@@ -38,14 +33,12 @@ Worker::Worker(hwinf *hw,
                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)
@@ -54,8 +47,9 @@ Worker::Worker(hwinf *hw,
   , 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_maintenanceMode(maintenanceMode)
   , m_osVersion(getOsVersion())
   , m_atbqtVersion(getATBQTVersion())
   , m_cpuSerial(getCPUSerial())
@@ -69,7 +63,9 @@ Worker::Worker(hwinf *hw,
   , 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_waitForNewUpdates(this)
+  , m_filesToUpdate()
+  , m_updateProcessRunning(false) {
 
     QDir::setCurrent(m_workingDirectory);
 
@@ -86,13 +82,6 @@ Worker::Worker(hwinf *hw,
     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();
 
@@ -104,47 +93,6 @@ Worker::Worker(hwinf *hw,
         }
         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() {
@@ -163,6 +111,428 @@ Worker::~Worker() {
     }
 }
 
+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();
+    m_updateProcessRunning = true;
+
+    bool sentIsmasLastVersionNotification = false;
+
+    QDir customerRepository(m_customerRepository);
+    if (!customerRepository.exists()) {
+        if (m_gc.gitCloneAndCheckoutBranch()) {
+            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(""));
+
+        }
+    } else {
+        // 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());
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    if (!sentIsmasLastVersionNotification) {
+        // try even if the backend is not connected
+        sendIsmasLastVersionNotification();
+    }
+
+    m_updateProcessRunning = false;
+    emit restartExitTimer();
+}
+
+bool Worker::backendConnected() {
+    static int repeat = 0;
+
+    if (repeat < 3) {
+        std::optional<QString> result
+            = IsmasClient::sendRequestReceiveResponse(
+                IsmasClient::APISM::DIRECT_PORT, "#M=APISM#C=REQ_SELF#J={}");
+        if (result) {
+            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();
+                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() << "XXXXXXXXXX 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");
+                    }
+                }
+            }
+        }
+    }
+    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);
+            }
+            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
+        }
+    }
+
+    qCritical() << "XXXXXXXXXXXXXXXXXXX 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)) {
+                        qCritical() << c.getCommandResult() << "SUCCESS";
+                    } else {
+                        qCritical() << "CMD" << cmd << "FAILED";
+                        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");
@@ -245,132 +615,7 @@ qint64 Worker::getFileSize(QString const &fileName) const {
     return fInfo.exists() ? fInfo.size() : -1;
 }
 
-void Worker::onHandleChangedFiles(QStringList changedFiles) {
+bool Worker::executeOpkgCommand(QString opkgCommand) {
-
-    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();
@@ -378,115 +623,92 @@ void Worker::executeOpkgCommand(QString opkgCommand) {
                                 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));
-        onTerminateUpdateProcess();
-        return;
     }
+    return false;
 }
 
-// sollte ParameterResponse heissen
+PSAInstalled Worker::getPSAInstalled() {
-void Worker::onIsmasResponseReceived(QJsonObject ismasResponse) {
+    QStringList const dcVersion = getDCVersion();
+    QString const deviceControllerVersionHW = dcVersion.first();
+    QString const deviceControllerVersionSW = dcVersion.last();
 
-    qInfo() << "IN ON_ISMAS_RESPONSE_RECEIVED" << QThread::currentThread()->objectName();
+    qInfo() << "CURRENT DC-HW-VERSION: " << deviceControllerVersionHW;
+    qInfo() << "CURRENT DC-SW-VERSION: " << deviceControllerVersionSW;
 
-    if (!ismasResponse.isEmpty()) {
+    QString const deviceControllerGitBlob = "N/A";
-        QStringList const keys = ismasResponse.keys();
+    QString const deviceControllerGitLastCommit = "N/A";
-        qInfo() << UpdateStatus(UPDATE_STATUS::ISMAS_RESPONSE_RECEIVED,
-                                QString("RECEIVED JSON WITH KEYS: ") + keys.join(","));
 
-        static QRegularExpression re("^REQ_ISMASPARAMETER.*");
+    PSAInstalled psaInstalled;
-        if(keys.indexOf(re) >= 0) {
+    QString printSysDir("/etc/psa_config");
-            m_waitForNewUpdates.stop(); // stop asking ISMAS for updates
+    QString tariffSysDir("/etc/psa_tariff");
+    QString absPathName;
 
-            // sanity check: cust_nr and machine_nr of PSA correct ?
+    if (m_zoneNr != 0) {
-            if (keys.contains("Dev_ID", Qt::CaseInsensitive)) {
+        QString const &n = QString("%1").arg(m_zoneNr).rightJustified(2, '0');
-                QJsonObject const devId = ismasResponse["Dev_ID"].toObject();
+        psaInstalled.tariff.name = QString("tariff%1.json").arg(n);
-                QStringList const keys = devId.keys();
+        absPathName = QDir::cleanPath(tariffSysDir + QDir::separator() + psaInstalled.tariff.name);
-                if (keys.contains("Custom_ID") && keys.contains("Device_ID")) {
+        psaInstalled.tariff.blob = m_gc.gitBlob(absPathName);
-                    QJsonValue const c = devId.value("Custom_ID");
+        psaInstalled.tariff.size = getFileSize(absPathName);
-                    QJsonValue const m = devId.value("Device_ID");
+        psaInstalled.tariff.zone = m_zoneNr;
-                    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)";
     }
+    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;
 }
 
-void Worker::onFinishUpdateProcess(bool changes) {
+QString Worker::sendCmdSendVersionToIsmas() {
-    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();
@@ -560,37 +782,8 @@ void Worker::onSendCmdSendVersionToIsmas() {
         psaInstalled.print[i].size = getFileSize(absPathName);
     }
 
-    QString data = m_ismasClient.updateOfPSASendVersion(psaInstalled);
+    // QByteArray data = "#M=APISM#C=CMD_SENDVERSION#J=";
-
+    return 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();
-    }
 }
 
 /************************************************************************************************
@@ -598,16 +791,28 @@ void Worker::askIsmasForNewData() {
  */
 QDebug operator<< (QDebug debug, UpdateStatus status) {
     switch(status.m_updateStatus) {
-    case UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING:
+    case UPDATE_STATUS::UPDATE_PROCESS_SUCCESS:
-        debug << QString("UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING: ")
+        debug << QString("UPDATE_STATUS::UPDATE_PROCESS_SUCCESS: ")
               << status.m_statusDescription;
         break;
-    case UPDATE_STATUS::ISMAS_UPDATE_REQUEST_SUCCESS:
+    case UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_PENDING:
-        debug << QString("UPDATE_STATUS::ISMAS_UPDATE_REQUEST_SUCCESS: ")
+        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_REQUEST:
+    case UPDATE_STATUS::GIT_FETCH_UPDATES:
-        debug << QString("UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST: ")
+        debug << QString("UPDATE_STATUS::GIT_FETCH_UPDATES: ")
               << status.m_statusDescription;
     break;
     case UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST_FAILURE:
@@ -653,16 +858,20 @@ QDebug operator<< (QDebug debug, UpdateStatus status) {
 
 QString& operator<< (QString& str, UpdateStatus status) {
     switch(status.m_updateStatus) {
-    case UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING:
+    case UPDATE_STATUS::UPDATE_PROCESS_SUCCESS:
-        str = QString("UPDATE_STATUS::ISMAS_UPDATE_REQUEST_PENDING: ");
+        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_UPDATE_REQUEST_SUCCESS:
+    case UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_SUCCESS:
-        str = QString("UPDATE_STATUS::ISMAS_UPDATE_REQUEST_SUCCESS: ");
+        str = QString("UPDATE_STATUS::ISMAS_WAIT_STATE_CHECK_SUCCESS: ");
         str += status.m_statusDescription;
     break;
-    case UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST:
+    case UPDATE_STATUS::GIT_FETCH_UPDATES:
-        str = QString("UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST: ");
+        str = QString("UPDATE_STATUS::GIT_FETCH_UPDATES: ");
         str += status.m_statusDescription;
     break;
     case UPDATE_STATUS::GIT_FETCH_UPDATES_REQUEST_FAILURE:

worker.h

@@ -13,7 +13,6 @@
 #include "update.h"
 #include "git/git_client.h"
 #include "ismas/ismas_client.h"
-#include "apism/apism_client.h"
 
 #ifdef PTU5
 #define SERIAL_PORT "ttymxc2"
@@ -23,21 +22,31 @@
 
 
 enum class UPDATE_STATUS : quint8 {
-    ISMAS_EMULATE_DATA_AVAILABLE,
+    NOT_DEFINED,
-    ISMAS_UPDATE_REQUEST_PENDING,
+    STEP_OK,
-    ISMAS_UPDATE_REQUEST_FAILURE,
+    STEP_DONE,
-    ISMAS_UPDATE_REQUEST_TIMEOUT,
+    STEP_FAIL,
-    ISMAS_UPDATE_REQUEST_SUCCESS,
+    ISMAS_WAIT_STATE_CHECK_PENDING,
+    ISMAS_WAIT_STATE_CHECK_FAILURE,
+    ISMAS_WAIT_STATE_CHECK_TIMEOUT,
+    ISMAS_WAIT_STATE_CHECK_SUCCESS,
     ISMAS_RESPONSE_RECEIVED,
-    GIT_CHECKOUT_BRANCH_REQUEST,
+    BACKEND_CONNECTED,
+    BACKEND_NOT_CONNECTED,
+    UPDATE_TRIGGER_SET,
+    UPDATE_TRIGGER_NOT_SET_OR_WRONG,
+    GIT_CLONE_AND_CHECKOUT_SUCCESS,
+    GIT_CLONE_AND_CHECKOUT_FAILURE,
+    GIT_CHECKOUT_BRANCH,
     GIT_CHECKOUT_BRANCH_REQUEST_FAILURE,
     GIT_CHECKOUT_BRANCH_NOT_EXISTS,
     GIT_CHECKOUT_BRANCH_CHECKOUT_ERROR,
-    GIT_FETCH_UPDATES_REQUEST,
+    GIT_FETCH_UPDATES,
     GIT_FETCH_UPDATES_REQUEST_FAILURE,
     GIT_FETCH_UPDATES_REQUEST_SUCCESS,
     GIT_PULL_UPDATES_SUCCESS,
     GIT_PULL_UPDATES_FAILURE,
+    EXEC_OPKG_COMMAND,
     EXEC_OPKG_COMMANDS,
     EXEC_OPKG_COMMAND_FAILURE,
     EXEC_OPKG_COMMAND_SUCCESS,
@@ -51,6 +60,8 @@ enum class UPDATE_STATUS : quint8 {
     JSON_UPDATE,
     JSON_UPDATE_FAILURE,
     JSON_UPDATE_SUCCESS,
+    UPDATE_PROCESS_SUCCESS,
+    UPDATE_PROCESS_FAILURE,
     ISMAS_UPDATE_INFO_CONFIRM,
     ISMAS_UPDATE_INFO_CONFIRM_FAILURE,
     ISMAS_UPDATE_INFO_CONFIRM_SUCCESS,
@@ -63,7 +74,8 @@ struct UpdateStatus {
     UPDATE_STATUS m_updateStatus;
     QString m_statusDescription;
 
-    explicit UpdateStatus(UPDATE_STATUS s, QString const &d)
+    explicit UpdateStatus(UPDATE_STATUS s = UPDATE_STATUS::NOT_DEFINED,
+                          QString const &d = QString(""))
         : m_updateStatus(s), m_statusDescription(d) {}
 };
 
@@ -78,10 +90,6 @@ class Worker : public QObject {
 
     hwinf *m_hw;
     WorkerThread m_workerThread;
-    QTimer m_startUpdateProcess;
-    QTimer m_emergencyTimer;
-    Update *m_update;
-    ApismClient m_apismClient;
     int const m_customerNr;
     QString const m_customerNrStr;
     int const m_machineNr;
@@ -90,8 +98,9 @@ class Worker : public QObject {
     QString const m_branchName;
     QString const m_customerRepositoryPath;
     QString const m_customerRepository;
+    Update *m_update;
+    IsmasClient m_ismasClient;
     GitClient m_gc;
-    bool m_maintenanceMode;
     QString const m_osVersion;
     QString const m_atbqtVersion;
     QString const m_cpuSerial;
@@ -107,12 +116,14 @@ class Worker : public QObject {
 
     int m_ismasUpdateRequests;
     QTimer m_waitForNewUpdates;
-    IsmasClient m_ismasClient;
 
-    UPDATE_STATUS m_updateStatus;
+    UpdateStatus m_updateStatus;
-    QString m_statusDescription;
 
-    void executeOpkgCommand(QString opkgCommand);
+    QStringList m_filesToUpdate;
+    bool m_updateProcessRunning;
+    int m_displayIndex;
+
+    bool executeOpkgCommand(QString opkgCommand);
     QString getOsVersion() const;
     QString getATBQTVersion() const;
     QString getCPUSerial() const;
@@ -124,21 +135,31 @@ class Worker : public QObject {
     qint64 getFileSize(QString const &fileName) const;
 
 public:
+    static const QString UPDATE_STEP_OK;
+    static const QString UPDATE_STEP_DONE;
+    static const QString UPDATE_STEP_FAIL;
+    static const QString UPDATE_STEP_SUCCESS;
+
     explicit Worker(hwinf *hw,
                     int customerNr, // 281
                     int machineNr,
                     int zoneNr,
                     QString branchName,
                     QString workingDir = ".",
-                    bool maintenanceMode = false,
                     bool dryRun = false,
                     QObject *parent = nullptr,
                     char const *serialInterface = SERIAL_PORT,
                     char const *baudrate = "115200");
     ~Worker();
-    void quit() { return m_workerThread.quit(); }
 
-    static int read1stLineOfFile(QString fileName);
+    IsmasClient &getIsmasClient() { return m_ismasClient; }
+    IsmasClient const &getIsmasClient() const { return m_ismasClient; }
+
+    bool updateProcessRunning() const { return m_updateProcessRunning; }
+
+    int machineNr() const { return m_machineNr; }
+    int customerNr() const { return m_customerNr; }
+    int zoneNr() const { return m_zoneNr; }
 
     //friend QDebug operator<<(QDebug debug, Worker const &w) {
     //    Q_UNUSED(w);
@@ -150,24 +171,29 @@ public:
     //}
 
 signals:
-    void handleChangedFiles(QStringList);
+    void appendText(QString, QString);
-    void summarizeUpload(QStringList);
+    void showErrorMessage(QString title, QString description);
-    void summarizeRepositoryStatus();
+    void setProgress(quint8);
-    void sendCmdSendVersionToIsmas();
+    void stopStartTimer();
-    void finishUpdateProcess(bool changes);
+    void restartExitTimer();
-    void terminateUpdateProcess();
 
 public slots:
-    void onIsmasResponseReceived(QJsonObject ismasResponse);
+    void update();
 
 private slots:
-    void askIsmasForNewData();
+    bool backendConnected();
-    void onSendCmdSendVersionToIsmas();
+    bool updateTriggerSet();
-    void onSummarizeRepositoryStatus();
+    bool customerEnvironment();
-    void onFinishUpdateProcess(bool changes);
+    bool filesToUpdate();
-    void onTerminateUpdateProcess();
+    bool updateFiles(quint8 percent);
-    void onSummarizeUpload(QStringList);
+    bool syncCustomerRepositoryAndFS();
-    void onHandleChangedFiles(QStringList);
+    bool sendIsmasLastVersionNotification();
+    bool saveLogFile();
+
+private:
+    PSAInstalled getPSAInstalled();
+    QString sendCmdSendVersionToIsmas();
+    void privateUpdate();
 };
 
 #endif // WORKER_H_INCLUDED