package envoy.client.util;

import java.util.logging.Level;

import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;

import envoy.client.data.Context;
import envoy.client.event.*;
import envoy.client.helper.*;
import envoy.client.ui.SceneContext.SceneInfo;
import envoy.data.User.UserStatus;
import envoy.event.UserStatusChange;
import envoy.util.EnvoyLog;

import dev.kske.eventbus.EventBus;

/**
 * Contains methods that change something about the currently logged in user.
 *
 * @author Leon Hofmeister
 * @since Envoy Client v0.3-beta
 */
public final class UserUtil {

	private UserUtil() {}

	/**
	 * Logs the current user out and reopens
	 * {@link envoy.client.ui.controller.LoginScene}.
	 *
	 * @since Envoy Client v0.2-beta
	 */
	public static void logout() {
		final var alert = new Alert(AlertType.CONFIRMATION);
		alert.setTitle("Logout?");
		alert.setContentText("Are you sure you want to log out?");

		AlertHelper.confirmAction(alert, () -> {
			EnvoyLog.getLogger(ShutdownHelper.class).log(Level.INFO, "A logout was requested");
			EventBus.getInstance().dispatch(new EnvoyCloseEvent());
			EventBus.getInstance().dispatch(new Logout());
			Context.getInstance().getSceneContext().load(SceneInfo.LOGIN_SCENE);
		});
	}

	/**
	 * Notifies the application that the status of the currently logged in user has
	 * changed.
	 *
	 * @param newStatus the new status
	 * @since Envoy Client v0.3-beta
	 */
	public static void changeStatus(UserStatus newStatus) {

		// Sending the already active status is a valid action
		if (newStatus.equals(Context.getInstance().getLocalDB().getUser().getStatus())) return;
		else {
			EventBus.getInstance().dispatch(new OwnStatusChange(newStatus));
			if (Context.getInstance().getClient().isOnline())
				Context.getInstance().getClient().send(new UserStatusChange(Context.getInstance().getLocalDB().getUser().getID(), newStatus));
		}
	}
}