Add port option

app/src/main.cpp

+#include <QStringList>
 #include <QJsonObject>
 //#include <QTranslator>
 //#include <QLocale>
 #include <QCommandLineParser>
+#include <QCommandLineOption>
 #include <QCoreApplication>
 
 #include "handlers/confighandler.h"
-#include "handlers/systemhandler.h"
-#include "handlers/ocshandler.h"
-#include "handlers/itemhandler.h"
+//#include "handlers/systemhandler.h"
+//#include "handlers/ocshandler.h"
+//#include "handlers/itemhandler.h"
 #include "websockets/websocketserver.h"
 
 int main(int argc, char *argv[])
@@ -34,11 +36,17 @@ int main(int argc, char *argv[])
     clParser.setApplicationDescription(appConfigApplication["description"].toString());
     clParser.addHelpOption();
     clParser.addVersionOption();
+    QCommandLineOption clPortOption(QStringList() << "p" << "port", "Port for websocket server [default: 443].", "port", "443");
+    clParser.addOption(clPortOption);
     clParser.process(app);
 
+    int port = clParser.value(clPortOption).toInt();
+
     // Setup websocket server
-    WebSocketServer *webSocketServer = new WebSocketServer(appConfigApplication["id"].toString(), 443, &app);
-    webSocketServer->start();
+    WebSocketServer *webSocketServer = new WebSocketServer(appConfigApplication["id"].toString(), port, &app);
+    if (!webSocketServer->start()) {
+        qFatal("Failed to start websocket server");
+    }
 
     return app.exec();
 }