package dk.abcdefghijklmnopqrstuvxyzæøå.bachelorizer;

import java.util.Arrays;

/// Bachelorizer - bachelor programme registrar
///
/// SPDX-License-Identifier: GPL-3.0-or-later
/// SPDX-FileCopyrightText: 2025 Jonas Smedegaard <dr@jones.dk>
///
/// 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()
///
/// * 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>
public class Main {

	/// Student name
	public String name;

	/// Student activity list
	public String[] activities;

	/// Main 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);
			}
		}
	}

	/// JVM entry point
	///
	/// @param args  command-line arguments
	public static void main(String[] args) {

		if (args.length == 0)
			args = new String[] {
				"Jonas Smedegaard",
				"CS-SMC2",
				"CS-SMC3",
			};

		Main session = new Main(args);

		// 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]");
	}
}