package foundation.token;

import foundation.variant.provider.VariantCenter;

public class IUserManager {

	private static IUserManager activeManager;
	private static IOnlineUser anymousOnlineUser;
	
	static {
		anymousOnlineUser = IOnlineUser.getInstance();
		VariantCenter center = VariantCenter.getInstance();
		center.registTransiant(IUser.VariantNames, IUser.ProviderName, IUser.class);
	}
	
	public static IOnlineUser registerUser(String token) {
		if (activeManager == null) {
			return anymousOnlineUser;
		}
		
		IOnlineUser result = activeManager.createUser(token);
		
		if (result == null) {
			return anymousOnlineUser;
		}
		
		return result;
	}

	public IOnlineUser createUser(String id) {
		return anymousOnlineUser;
	}

	public IOnlineUser getUser() {
		return anymousOnlineUser;
	}
	
	public static void registerManager(IUserManager manager) {
		activeManager = manager;
	}

	public static IOnlineUser getCurrentUser() {
		if (activeManager != null) {
			return activeManager.getUser();
		}
		
		return anymousOnlineUser;
	}

}