expand to use multi-framework MVC pattern

1 files changed, 49 insertions, 26 deletions

diff --git a/dk/abcdefghijklmnopqrstuvxyzæøå/bachelorizer/Main.java b/dk/abcdefghijklmnopqrstuvxyzæøå/bachelorizer/Main.java
index 633f5f7..d5da2b7 100644
--- a/dk/abcdefghijklmnopqrstuvxyzæøå/bachelorizer/Main.java
+++ b/dk/abcdefghijklmnopqrstuvxyzæøå/bachelorizer/Main.java
@@ -3,39 +3,48 @@
 
 package dk.abcdefghijklmnopqrstuvxyzæøå.bachelorizer;
 
+import java.lang.UnsupportedOperationException;
 import java.util.Arrays;
 
+/* TODO
+import dk.abcdefghijklmnopqrstuvxyzæøå.bachelorizer.view.Oneshot;
+import dk.abcdefghijklmnopqrstuvxyzæøå.bachelorizer.view.Prompt;
+import dk.abcdefghijklmnopqrstuvxyzæøå.bachelorizer.view.Pipe;
+import dk.abcdefghijklmnopqrstuvxyzæøå.bachelorizer.view.Screen;
+*/
+import dk.abcdefghijklmnopqrstuvxyzæøå.bachelorizer.view.Window;
+
 /// Bachelorizer - bachelor programme registrar
 ///
 /// Tool for registering students
 /// for activities in their bachelor programme.
 ///
-/// Core class usable in several ways
-/// * as self-contained executable via method main()
-/// * embedded in a larger system by instantiating Bachelorizer()
+/// Runner class spawning an interactive or non-interactive application
+/// based on passed arguments
+///
+/// Multi-framework MVC structure inspired by project Криптоанализатор
+/// written by Александр Хмелев <akhmelev@gmail.com>.
 ///
 /// * v0.0.1-draft
 ///   * initial release, as part of delivery "Portfolio 1"
 ///
 /// @version 0.0.1-draft
 /// @see <https://moodle.ruc.dk/mod/assign/view.php?id=523186>
+/// @see <https://github.com/demologin/CryptoAnalyzerLed>
 public class Main {
 
-	/// Student name
-	public String name;
-
-	/// Student activity list
-	public String[] activities;
-
-	/// Main constructor
+	/// Default constructor
 	///
 	/// @param args  command-line arguments or default demo data
 	public Main(final String[] args) {
-		if (args.length > 0 && args[0] != null) {
-			this.name = args[0];
-			if (args.length > 1 && args[1] != null) {
-				this.activities = Arrays.copyOfRange(
-					args, 1, args.length);
+
+		switch (uiFromArgs(args)) {
+			case "gui" -> { Window.main(args); }
+// TODO			case "tui" -> { Screen.main(args); }
+// TODO			case "cli" -> { Line.main(args); }
+			default -> {
+				throw new UnsupportedOperationException(
+					"Not yet implemented.");
 			}
 		}
 	}
@@ -45,23 +54,37 @@ public class Main {
 	/// @param args  command-line arguments
 	public static void main(String[] args) {
 
-		if (args.length == 0)
+		// inject initial sample data unless passed as arguments
+		if ((args.length == 0)
+			|| (!Arrays.stream(args).anyMatch(
+				s -> s != null && !s.startsWith("-")))
+		) {
 			args = new String[] {
 				"Jonas Smedegaard",
 				"CS-SMC2",
 				"CS-SMC3",
 			};
+		}
 
-		Main session = new Main(args);
+		new Main(args);
+	}
+
+	/// minimal argument parser to detect explicit UI choice
+	///
+	/// @param args  command-line arguments
+	/// @return      choice of UI as String
+	public static String uiFromArgs(String[] args) {
+		// TODO: make "cli" the default when implemented
+		String defaultUI = "gui";
+
+		for (String arg : args) {
+			if (arg.matches("--(gui|tui|cli)")) {
+				return (arg.length() == 2)
+					? defaultUI
+					: arg.substring(2);
+			}
+		}
 
-		// minimal viable product
-		System.out.printf("Hi %s%n",
-			(session.name != null)
-				? session.name
-				: "stranger");
-		System.out.printf("You chose these activities: %s%n",
-			(session.activities != null)
-				? Arrays.toString(session.activities)
-				: "[nothing]");
+		return defaultUI;
 	}
 }