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package fi.evolver.ai.vaadin;

import java.io.Serial;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.vaadin.flow.router.RouteConfiguration;
import com.vaadin.flow.router.RouterLayout;
import com.vaadin.flow.server.ErrorHandler;
import com.vaadin.flow.server.ServiceInitEvent;
import com.vaadin.flow.server.VaadinServiceInitListener;
import com.vaadin.flow.server.VaadinSession;

import fi.evolver.ai.vaadin.view.AdminView;
import fi.evolver.ai.vaadin.view.ProfileView;

public abstract class AbstractAppConfigurator implements VaadinServiceInitListener {
	@Serial
	private static final long serialVersionUID = 1L;

	private static final Logger LOG = LoggerFactory.getLogger(AbstractAppConfigurator.class);

	protected abstract Class getLayout();

	protected ErrorHandler getErrorHandler() {
		return null;
	}

	@Override
	public void serviceInit(ServiceInitEvent event) {
		event.getSource().addSessionInitListener(initEvent -> {
			LOG.debug("Setting up evolver-ai-vaadin routes");
			RouteConfiguration.forSessionScope().setRoute("profile", ProfileView.class, List.of(getLayout()));
			RouteConfiguration.forSessionScope().setRoute("admin", AdminView.class, List.of(getLayout()));
			ErrorHandler errorHandler = getErrorHandler();
			if (errorHandler != null) {
				LOG.debug("Attaching custom error handler");
				VaadinSession.getCurrent().setErrorHandler(errorHandler);
			}
		});
	}

}