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** This file is part of the examples of the Qt OPC UA module.
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#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QOpcUaClient>

QT_BEGIN_NAMESPACE

class QOpcUaProvider;
class OpcUaModel;

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT
public:
    explicit MainWindow(const QString &initialUrl, QWidget *parent = nullptr);
    ~MainWindow();
    Q_INVOKABLE void log(const QString &text, const QString &context, const QColor &color);
    void log(const QString &text, const QColor &color = Qt::black);

private slots:
    void connectToServer();
    void findServers();
    void findServersComplete(const QVector<QOpcUaApplicationDescription> &servers, QOpcUa::UaStatusCode statusCode);
    void getEndpoints();
    void getEndpointsComplete(const QVector<QOpcUaEndpointDescription> &endpoints, QOpcUa::UaStatusCode statusCode);
    void clientConnected();
    void clientDisconnected();
    void namespacesArrayUpdated(const QStringList &namespaceArray);
    void clientError(QOpcUaClient::ClientError);
    void clientState(QOpcUaClient::ClientState);
    void showErrorDialog(QOpcUaErrorState *errorState);

private:
    void createClient();
    void updateUiState();
    void setupPkiConfiguration();
    bool createPkiFolders();
    bool createPkiPath(const QString &path);

private:
    Ui::MainWindow *ui;
    OpcUaModel *mOpcUaModel;
    QOpcUaProvider *mOpcUaProvider;
    QOpcUaClient *mOpcUaClient = nullptr;
    QVector<QOpcUaEndpointDescription> mEndpointList;
    bool mClientConnected = false;
    QOpcUaApplicationIdentity m_identity;
    QOpcUaPkiConfiguration m_pkiConfig;
    QOpcUaEndpointDescription m_endpoint; // current endpoint used to connect
};

QT_END_NAMESPACE

#endif // MAINWINDOW_H