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/**
 * @file   main.cpp
 * @brief  Entry point for the Bobink demo application.
 */
#include <QDateTime>
#include <QGuiApplication>
#include <QQmlApplicationEngine>

#include <QtQml/QQmlExtensionPlugin>
Q_IMPORT_QML_PLUGIN(BobinkPlugin)
Q_IMPORT_QML_PLUGIN(Xpl2Plugin)

/** @brief Custom log handler matching open62541 server log format. */
static void logHandler(QtMsgType type, const QMessageLogContext &ctx,
                       const QString &msg) {
  // Color only the type/category tag.
  const char *color = "";
  const char *label = "debug";
  switch (type) {
  case QtDebugMsg:
    label = "debug";
    break;
  case QtInfoMsg:
    color = "\x1b[32m";
    label = "info";
    break;
  case QtWarningMsg:
    color = "\x1b[33m";
    label = "warning";
    break;
  case QtCriticalMsg:
    color = "\x1b[31m";
    label = "critical";
    break;
  case QtFatalMsg:
    color = "\x1b[1;31m";
    label = "fatal";
    break;
  }

  // Shorten "qt.opcua.plugins.open62541.sdk.client" → "client".
  QLatin1StringView cat(ctx.category ? ctx.category : "default");
  qsizetype dot = cat.lastIndexOf(QLatin1Char('.'));
  if (dot >= 0)
    cat = cat.sliced(dot + 1);

  // "debug/client", "warning/network", etc. — padded to 20 chars.
  QByteArray tag = QByteArray(label) + '/' + QByteArray(cat.data(), cat.size());

  // Format UTC offset as "(UTC+0100)" to match open62541 server logs.
  QDateTime now = QDateTime::currentDateTime();
  qint32 offset = now.offsetFromUtc();
  QChar sign = offset >= 0 ? u'+' : u'-';
  offset = qAbs(offset);
  QString ts = now.toString(u"yyyy-MM-dd HH:mm:ss.zzz") +
               QStringLiteral(" (UTC%1%2%3)")
                   .arg(sign)
                   .arg(offset / 3600, 2, 10, QLatin1Char('0'))
                   .arg((offset % 3600) / 60, 2, 10, QLatin1Char('0'));

  fprintf(stderr, "[%s] %s%-20.*s\x1b[0m %s\n", qPrintable(ts), color,
          static_cast<int>(tag.size()), tag.data(), qPrintable(msg));
}

int main(int argc, char *argv[]) {
  // Load the locally-built OpcUa backend plugin (open62541).
  QCoreApplication::addLibraryPath(QStringLiteral(QTOPCUA_PLUGIN_PATH));

  qInstallMessageHandler(logHandler);

  QGuiApplication app(argc, argv);

  QQmlApplicationEngine engine;
  QObject::connect(
      &engine, &QQmlApplicationEngine::objectCreationFailed, &app,
      []() { QCoreApplication::exit(1); }, Qt::QueuedConnection);

  engine.loadFromModule("BobinkQtOpcUaAppTemplate", "Main");
  return app.exec();
}