From 591d4312269d71672fa8b981873742c9f5727efb Mon Sep 17 00:00:00 2001
From: Nathan McRae <me@nathanmcrae.name>
Date: Fri, 24 Jan 2025 23:23:29 -0800
Subject: [PATCH] Add argument parsing

---
 src/main/java/build.ps1                       |  4 +-
 .../name/nathanmcrae/numbersstation/Main.java | 46 ++++++++++++++++++-
 2 files changed, 47 insertions(+), 3 deletions(-)

diff --git a/src/main/java/build.ps1 b/src/main/java/build.ps1
index 932b143..f5a439a 100644
--- a/src/main/java/build.ps1
+++ b/src/main/java/build.ps1
@@ -1,6 +1,6 @@
 $Env:JAVA_HOME = "C:\Users\nathanm\Downloads\openjdk-23.0.1_windows-x64_bin\jdk-23.0.1"
 $Env:PATH = "C:\Users\nathanm\Downloads\openjdk-23.0.1_windows-x64_bin\jdk-23.0.1\bin;$($Env:PATH)"
 $Env:PATH_TO_FX="C:\Users\nathanm\Downloads\openjfx-23.0.1_windows-x64_bin-sdk\javafx-sdk-23.0.1\lib"
-javac --module-path "$Env:PATH_TO_FX;P:\personal_root\projects\number-station\lib" --add-modules javafx.controls,javafx.fxml,com.fasterxml.jackson.annotation,com.fasterxml.jackson.core,com.fasterxml.jackson.dataformat.xml,com.fasterxml.jackson.datatype.jsr310 .\name\nathanmcrae\numbersstation\*.java -d out
+javac --module-path "$Env:PATH_TO_FX;P:\personal_root\projects\number-station\lib" --add-modules javafx.controls,javafx.fxml,com.fasterxml.jackson.annotation,com.fasterxml.jackson.core,com.fasterxml.jackson.dataformat.xml,com.fasterxml.jackson.datatype.jsr310,org.apache.commons.cli .\name\nathanmcrae\numbersstation\*.java -d out
 cp name/nathanmcrae/numbersstation/*.fxml out/name/nathanmcrae/numbersstation
-java --module-path "$Env:PATH_TO_FX;P:\personal_root\projects\number-station\lib" --add-modules javafx.controls,javafx.fxml,com.fasterxml.jackson.annotation,com.fasterxml.jackson.core,com.fasterxml.jackson.dataformat.xml,com.fasterxml.jackson.datatype.jsr310 -cp out name.nathanmcrae.numbersstation.Main
+java --module-path "$Env:PATH_TO_FX;P:\personal_root\projects\number-station\lib" --add-modules javafx.controls,javafx.fxml,com.fasterxml.jackson.annotation,com.fasterxml.jackson.core,com.fasterxml.jackson.dataformat.xml,com.fasterxml.jackson.datatype.jsr310,org.apache.commons.cli -cp out name.nathanmcrae.numbersstation.Main @args
diff --git a/src/main/java/name/nathanmcrae/numbersstation/Main.java b/src/main/java/name/nathanmcrae/numbersstation/Main.java
index 8030e99..b9c095d 100644
--- a/src/main/java/name/nathanmcrae/numbersstation/Main.java
+++ b/src/main/java/name/nathanmcrae/numbersstation/Main.java
@@ -13,10 +13,12 @@ import javafx.fxml.FXMLLoader;
 import javafx.scene.Parent;
 import javafx.scene.Scene;
 import javafx.stage.Stage;
+import org.apache.commons.cli.*;
 
 public class Main extends Application {
     private static final Logger logger = Logger.getLogger(Main.class.getName());
-
+    // TODO: get git info
+    private static final String VERSION = "0.0.1";
     private static Path statePath = null;
 
     public Path getStatePath() {
@@ -59,7 +61,49 @@ public class Main extends Application {
         }
     }
 
+    private static void parseArguments(String[] args) {
+        Options options = new Options();
+
+        Option help = new Option("h", "help", false, "Show help");
+        options.addOption(help);
+
+        Option version = new Option("v", "version", false, "Show version");
+        options.addOption(version);
+
+        Option station = new Option("s", "station", true, "Specify station name");
+        station.setArgName("station-name");
+        options.addOption(station);
+
+        CommandLineParser parser = new DefaultParser();
+        HelpFormatter formatter = new HelpFormatter();
+        String stationName = null;
+
+        try {
+            CommandLine cmd = parser.parse(options, args);
+
+            if (cmd.hasOption("help")) {
+                formatter.printHelp("numbers-station", options);
+                System.exit(0);
+            }
+
+            if (cmd.hasOption("version")) {
+                System.out.println("Numbers Station version " + VERSION);
+                System.exit(0);
+            }
+
+            if (cmd.hasOption("station")) {
+                stationName = cmd.getOptionValue("station");
+            }
+        } catch (ParseException e) {
+            System.out.println(e.getMessage());
+            formatter.printHelp("numbers-station", options);
+            System.exit(1);
+        }
+    }
+
     public static void main(String[] args) {
+        parseArguments(args);
+
         Thread.setDefaultUncaughtExceptionHandler((thread, throwable) -> {
             logger.log(Level.SEVERE, "Unhandled exception caught", throwable);
         });