preparing for main menu configuration

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

core/src/main/java/de/srsoftware/umbrella/core/SettingsService.java

@@ -0,0 +1,51 @@
+package de.srsoftware.umbrella.core;
+
+import com.sun.net.httpserver.HttpExchange;
+import de.srsoftware.configuration.Configuration;
+import de.srsoftware.tools.Path;
+import de.srsoftware.tools.SessionToken;
+import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
+import de.srsoftware.umbrella.core.model.Token;
+import de.srsoftware.umbrella.core.model.UmbrellaUser;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.util.Optional;
+
+import static de.srsoftware.umbrella.core.ModuleRegistry.userService;
+import static de.srsoftware.umbrella.core.constants.Path.MENU;
+
+public class SettingsService extends BaseHandler {
+
+	private final Configuration config;
+
+	public SettingsService(Configuration config) {
+		this.config = config;
+	}
+
+	@Override
+	public boolean doGet(Path path, HttpExchange ex) throws IOException {
+		addCors(ex);
+		try {
+			Optional<Token> token = SessionToken.from(ex).map(Token::of);
+			var user = userService().loadUser(token);
+			if (user.isEmpty()) return unauthorized(ex);
+			var head = path.pop();
+			return switch (head) {
+				case MENU -> getMenuSettings(user.get(), ex);
+				case null, default -> super.doGet(path, ex);
+			};
+		} catch (UmbrellaException e) {
+			return send(ex, e);
+		}
+	}
+
+	private boolean getMenuSettings(UmbrellaUser user, HttpExchange ex) throws IOException {
+		Optional<JSONObject> modules = config.get("umbrella.modules");
+		if (modules.isEmpty()) throw UmbrellaException.missingConfig("umbrella.modules");
+		var key = modules.get().keySet();
+
+
+		return notFound(ex);
+	}
+}

core/src/main/java/de/srsoftware/umbrella/core/constants/Path.java

@@ -22,6 +22,9 @@ public class Path {
 	public static final String LOGIN     = "login";
 
 	public static final String LOGOUT     = "logout";
+
+	public static final String MENU = "menu";
+
 	public static final String PAGE       = "page";
 	public static final String PASSWORD   = "password";
 	public static final String PROJECT    = "project";