From 6301ec587d747d20518e2fee81eb551b44bc89ac Mon Sep 17 00:00:00 2001
From: Mark Long <markdlong128@gmail.com>
Date: Sat, 4 Oct 2025 13:02:15 -0500
Subject: [PATCH] Updated main() to allow --version and --help options. Added
 cmdline processing function.

---
 AI_PROJECT_HINTS.md | 11 ++++---
 src/main.cxx        | 71 ++++++++++++++++++++++++++++++++++-----------
 2 files changed, 59 insertions(+), 23 deletions(-)

diff --git a/AI_PROJECT_HINTS.md b/AI_PROJECT_HINTS.md
index 936aab6..ac44ca5 100644
--- a/AI_PROJECT_HINTS.md
+++ b/AI_PROJECT_HINTS.md
@@ -19,11 +19,11 @@ This file contains project-specific information to help AI assistants work effec
 
 ## Application Type & Testing
 
-### GUI Application - NO Command Line Interface
+### GUI Application - Few Command Line Interface Arguments
 - **Application type**: Qt6 GUI application
-- **Cannot test with**: `--help`, `--version`, or any CLI flags
+- **It can be tested with**: `--help` or `--version`, both of which should exit
 - **Test method**: Launch GUI (`build/AppleSAWS`) or run specific tests
-- **Entry point**: `main.cpp` launches Qt GUI
+- **Entry point**: `main.cxx` launches Qt GUI
 
 ## Development Standards & Preferences
 
@@ -94,10 +94,9 @@ This file contains project-specific information to help AI assistants work effec
 - ✅ Always use `./build.sh` or CMake commands
 
 ### Application Testing
-- ❌ Don't try `build/AppleSAWS --help` (GUI app, no CLI)
-- ❌ Don't expect command-line output for testing
+- ✅ Use `--help` or `--version` for quick smoke tests (both exit without launching the GUI)
 - ✅ Build success indicates code correctness
-- ✅ Can launch GUI for functional testing (`build/AppleSAWS`)
+- ✅ Launch the GUI for functional testing (`build/AppleSAWS`)
 
 ### Code Style
 - ❌ Don't use old-style Qt SIGNAL/SLOT macros
diff --git a/src/main.cxx b/src/main.cxx
index 5e3713f..8b6f878 100644
--- a/src/main.cxx
+++ b/src/main.cxx
@@ -1,28 +1,65 @@
-#include <QApplication>
-#include <QSettings>
-#include <QString>
-#include <QFontDatabase>
-#include <QDebug>
-
 #include "StartupDialog.h"
 
+#include <QApplication>
+#include <QCommandLineParser>
+#include <QDebug>
+#include <QFontDatabase>
+#include <QString>
+#include <QStringView>
+
+namespace
+{
+    constexpr auto OrganizationName = QStringView{u"LydianScaleSoftware"};
+    constexpr auto OrganizationDomain = QStringView{u"lydianscale.com"};
+    constexpr auto ApplicationName = QStringView{u"AppleSAWS"};
+    constexpr auto ApplicationVersion = QStringView{u"development"};
+    constexpr auto ApplicationDescription = QStringView{u"Apple II disk image and file exploration toolkit."};
+
+    void processArguments(QCoreApplication& app)
+    {
+        QCommandLineParser parser;
+        parser.setApplicationDescription(QString{ApplicationDescription});
+        const QCommandLineOption helpOption = parser.addHelpOption();
+        const QCommandLineOption versionOption = parser.addVersionOption();
+
+        parser.process(app);
+
+        if (parser.isSet(helpOption))
+        {
+            parser.showHelp();
+        }
+
+        if (parser.isSet(versionOption))
+        {
+            parser.showVersion();
+        }
+    }
+}
+
 int main(int argc, char** argv)
 {
-    QApplication a(argc, argv);
-    QCoreApplication::setOrganizationName("LydianScaleSoftware");
-    QCoreApplication::setOrganizationDomain("lydianscale.com");
-    QCoreApplication::setApplicationName("AppleSAWS");
+    QApplication app(argc, argv);
+    QCoreApplication::setOrganizationName(QString{OrganizationName});
+    QCoreApplication::setOrganizationDomain(QString{OrganizationDomain});
+    QCoreApplication::setApplicationName(QString{ApplicationName});
+    QCoreApplication::setApplicationVersion(QString{ApplicationVersion});
 
-    auto x = QFontDatabase::addApplicationFont(":/fonts/Print_Char_21.ttf");
-    auto y = QFontDatabase::addApplicationFont(":/fonts/PR_Number_3.ttf");
+    processArguments(app);
 
-    if (x < 0) { qWarning("Could not load Print_Char_21.ttf font."); }
-    if (y < 0) { qWarning("Could not load PR_Number_3.ttf font."); }
+    const auto loadFont = [](const QString& resourcePath, QStringView friendlyName) {
+        if (QFontDatabase::addApplicationFont(resourcePath) < 0)
+        {
+            qWarning().noquote() << QStringLiteral("Could not load %1 font.").arg(friendlyName);
+        }
+    };
 
-    StartupDialog w;
-    w.show();
+    loadFont(QStringLiteral(":/fonts/Print_Char_21.ttf"), QStringLiteral("Print_Char_21.ttf"));
+    loadFont(QStringLiteral(":/fonts/PR_Number_3.ttf"), QStringLiteral("PR_Number_3.ttf"));
 
-    return a.exec();
+    StartupDialog startupDialog;
+    startupDialog.show();
+
+    return app.exec();
 
 }