envoy/src/main/java/envoy/client/ui/Startup.java

package envoy.client.ui;

import java.awt.EventQueue;
import java.io.IOException;
import java.util.Properties;

import javax.swing.JOptionPane;

import envoy.client.Client;
import envoy.client.Config;

/**
 * Starts the Envoy client and prompts the user to enter their name.
 * 
 * Project: <strong>envoy-client</strong><br>
 * File: <strong>Startup.java</strong><br>
 * Created: <strong>12 Oct 2019</strong><br>
 * 
 * @author Leon Hofmeister
 * @author Maximilian K&auml;fer
 * @since Envoy v0.1-alpha
 */
public class Startup {

	public static void main(String[] args) {
		Config config = new Config();
		if (args.length > 0) {
			config.load(args);
		} else {
			ClassLoader loader = Thread.currentThread().getContextClassLoader();
			try {
				Properties configProperties = new Properties();
				configProperties.load(loader.getResourceAsStream("server.properties"));
				config.load(configProperties);
			} catch (IOException e) {
				e.printStackTrace();
			}
		}

		if (!config.isInitialized()) {
			System.err.println("Server or port are not defined. Exiting...");
			System.exit(1);
		}

		String userName = JOptionPane.showInputDialog("Please enter your username");
		if (userName == null || userName.isEmpty()) {
			System.err.println("User name is not set or empty. Exiting...");
			System.exit(1);
		}
		Client client = new Client(config, userName);

		EventQueue.invokeLater(() -> {
			try {
				ChatWindow frame = new ChatWindow(client);
				frame.setVisible(true);
			} catch (Exception e) {
				e.printStackTrace();
			}
		});
	}
}