package com.fp.frontend.filter.security;

import javax.faces.application.NavigationHandler;
import javax.faces.context.FacesContext;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
import javax.servlet.http.HttpSession;

import com.fp.persistence.pgeneral.safe.TsafeUserDetail;

public class AuthorizationListener implements PhaseListener {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	@Override
	public void afterPhase(PhaseEvent event) {
		FacesContext facesContext = event.getFacesContext();
		String currentPage = facesContext.getViewRoot().getViewId();

		boolean isLoginPage = (currentPage.lastIndexOf("login.xhtml") > -1);
		HttpSession session = (HttpSession) facesContext.getExternalContext().getSession(false);

		NavigationHandler nh = facesContext.getApplication().getNavigationHandler();
		//NavigationHandler nh = FacesContext.getCurrentInstance().getApplication().getNavigationHandler();

		TsafeUserDetail currentUser = session!=null ? (TsafeUserDetail) session.getAttribute("TSAFEUSERDETAIL"):null;

		if (!isLoginPage && (currentUser == null)) {
			//nh.handleNavigation(facesContext, null, "login");
			try {
				facesContext.getExternalContext().dispatch("/login.xhtml");
			} catch (Exception e) {
				e.printStackTrace();
			}
		}else if(isLoginPage && (currentUser!=null)){
			//nh.handleNavigation(facesContext, null, "workspace");
			try {
				facesContext.getExternalContext().dispatch("/pages/workspace.xhtml");
			} catch (Exception e) {
				e.printStackTrace();
			}
		}

	}

	@Override
	public void beforePhase(PhaseEvent event) {

	}

	@Override
	public PhaseId getPhaseId() {
		return PhaseId.RESTORE_VIEW;
	}
}