Add Launcher Class to make .jar file runnable

META-INF/MANIFEST.MF

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Main-Class: duke.Duke
+

build.gradle

@@ -54,14 +54,11 @@ test {
 }
 
 application {
-    mainClass.set("duke.Duke")
+    mainClass.set("Launcher")
 }
 
 shadowJar {
-    archiveFileName = "duke.jar"
-    archiveBaseName = "duke"
-    archiveClassifier = null
-    dependsOn("distZip", "distTar")
+    archiveFileName = "ken.jar"
 }
 
 run{

data/duke.txt

@@ -1 +1,7 @@
+T|false|test
+T|false|a
+T|false|a
+T|false|a
+T|false|a
+T|false|test
 T|false|1

src/main/java/Launcher.java

@@ -0,0 +1,11 @@
+import duke.Duke;
+import javafx.application.Application;
+
+/**
+ * Launcher for stating the program with gui.
+ */
+public class Launcher {
+    public static void main(String[] args) {
+        Application.launch(Duke.class, args);
+    }
+}

src/main/java/duke/Duke.java

@@ -37,10 +37,6 @@ public class Duke extends Application {
     private Image user = new Image(this.getClass().getResourceAsStream("/images/DaUser.png"));
     private Image duke = new Image(this.getClass().getResourceAsStream("/images/DaDuke.png"));
 
-    public static void main(String[] args) {
-        Application.launch(Duke.class, args);
-    }
-
     /**
      * Start the program with GUI.
      *

src/main/java/duke/Parser.java

@@ -24,7 +24,7 @@ public class Parser {
      * @return The corresponding duke.command.Command object.
      */
     public static Command parse(String userInput) throws DukeException {
-        String[] words = userInput.toLowerCase().split("\\s+");
+        String[] words = userInput.trim().toLowerCase().split("\\s+");
         switch (words[0]) {
         case "bye":
             return new ExitCommand();

src/main/java/duke/command/AddCommand.java

@@ -25,7 +25,7 @@ public class AddCommand implements Command {
      */
     @Override
     public boolean execute(TaskList tasks, Ui ui) throws DukeException {
-        String userInput = ui.getLastMsg();
+        String userInput = ui.getLastMsg().trim();
 
         // Determine the task type based on the message.
         if (userInput.toLowerCase().startsWith("todo")) {

src/main/resources/META-INF/MANIFEST.MF

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Main-Class: Launcher
+

src/test/java/ParserTest.java

@@ -31,4 +31,18 @@ public void parse_unknownCommand_exceptionThrown() {
             assertEquals(true, true);
         }
     }
+
+    @Test
+    public void parse_handleMultipleSpaces() {
+        String[] testInputs = {" bye", " bye  ", "    bye"};
+        String lastInput = testInputs[0];
+        try {
+            for (String command : testInputs) {
+                lastInput = command;
+                Parser.parse(command);
+            }
+        } catch (DukeException e) {
+            fail(lastInput + " command failed to parse");
+        }
+    }
 }