From 1e1641d81938c48b5f01f6ab71fe4b8868a5889d Mon Sep 17 00:00:00 2001
From: gegy1000
Date: Tue, 18 Jun 2019 21:37:15 +0200
Subject: Use jopt for cli parsing

---
 src/main/java/cuchaz/enigma/Main.java | 105 +++++++++++++++++++++++++---------
 1 file changed, 77 insertions(+), 28 deletions(-)

(limited to 'src/main/java/cuchaz/enigma/Main.java')

diff --git a/src/main/java/cuchaz/enigma/Main.java b/src/main/java/cuchaz/enigma/Main.java
index 76a3fff..a642840 100644
--- a/src/main/java/cuchaz/enigma/Main.java
+++ b/src/main/java/cuchaz/enigma/Main.java
@@ -12,48 +12,97 @@
 package cuchaz.enigma;
 
 import cuchaz.enigma.gui.Gui;
+import cuchaz.enigma.gui.GuiController;
 import cuchaz.enigma.translation.mapping.serde.MappingFormat;
+import joptsimple.*;
 
-import java.io.File;
+import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.nio.file.Paths;
 
 public class Main {
 
-	public static void main(String[] args) throws Exception {
-		Gui gui = new Gui();
+	public static void main(String[] args) throws IOException {
+		OptionParser parser = new OptionParser();
 
-		// parse command-line args
-		if (args.length >= 1) {
-			gui.getController().openJar(getFile(args[0]).toPath());
-		}
-		if (args.length >= 2) {
-			Path mappingsFile = getFile(args[1]).toPath();
-			if (Files.isDirectory(mappingsFile)) {
-				gui.getController().openMappings(MappingFormat.ENIGMA_DIRECTORY, mappingsFile);
-			} else {
-				gui.getController().openMappings(MappingFormat.ENIGMA_FILE, mappingsFile);
+		OptionSpec<Path> jar = parser.accepts("jar", "Jar file to open at startup")
+				.withRequiredArg()
+				.withValuesConvertedBy(PathConverter.INSTANCE);
+
+		OptionSpec<Path> mappings = parser.accepts("mappings", "Mappings file to open at startup")
+				.withRequiredArg()
+				.withValuesConvertedBy(PathConverter.INSTANCE);
+
+		OptionSpec<Path> profile = parser.accepts("profile", "Profile json to apply at startup")
+				.withRequiredArg()
+				.withValuesConvertedBy(PathConverter.INSTANCE);
+
+		parser.accepts("help", "Displays help information");
+
+		try {
+			OptionSet options = parser.parse(args);
+
+			if (options.has("help")) {
+				parser.printHelpOn(System.out);
+				return;
+			}
+
+			Gui gui = new Gui();
+			GuiController controller = gui.getController();
+
+			if (options.has(jar)) {
+				Path jarPath = options.valueOf(jar);
+				controller.openJar(jarPath);
 			}
-		}
 
-		// DEBUG
-		//gui.getController().openDeclaration(new ClassEntry("none/byp"));
+			if (options.has(mappings)) {
+				Path mappingsPath = options.valueOf(mappings);
+				if (Files.isDirectory(mappingsPath)) {
+					controller.openMappings(MappingFormat.ENIGMA_DIRECTORY, mappingsPath);
+				} else {
+					controller.openMappings(MappingFormat.ENIGMA_FILE, mappingsPath);
+				}
+			}
+		} catch (OptionException e) {
+			System.out.println("Invalid arguments: " + e.getMessage());
+			System.out.println();
+			parser.printHelpOn(System.out);
+		}
 	}
 
-	private static File getFile(String path) {
-		// expand ~ to the home dir
-		if (path.startsWith("~")) {
-			// get the home dir
-			File dirHome = new File(System.getProperty("user.home"));
-
-			// is the path just ~/ or is it ~user/ ?
-			if (path.startsWith("~/")) {
-				return new File(dirHome, path.substring(2));
-			} else {
-				return new File(dirHome.getParentFile(), path.substring(1));
+	private static class PathConverter implements ValueConverter<Path> {
+		static final ValueConverter<Path> INSTANCE = new PathConverter();
+
+		PathConverter() {
+		}
+
+		@Override
+		public Path convert(String path) {
+			// expand ~ to the home dir
+			if (path.startsWith("~")) {
+				// get the home dir
+				Path dirHome = Paths.get(System.getProperty("user.home"));
+
+				// is the path just ~/ or is it ~user/ ?
+				if (path.startsWith("~/")) {
+					return dirHome.resolve(path.substring(2));
+				} else {
+					return dirHome.getParent().resolve(path.substring(1));
+				}
 			}
+
+			return Paths.get(path);
 		}
 
-		return new File(path);
+		@Override
+		public Class<? extends Path> valueType() {
+			return Path.class;
+		}
+
+		@Override
+		public String valuePattern() {
+			return "path";
+		}
 	}
 }
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