package net.sourceforge.fenixedu.presentationTier.Action.publico;

import java.net.MalformedURLException;
import java.util.Locale;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sourceforge.fenixedu.domain.Degree;
import net.sourceforge.fenixedu.domain.RootDomainObject;
import net.sourceforge.fenixedu.presentationTier.Action.manager.SiteVisualizationDA;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.util.RequestUtils;

public class DegreeSiteVisualizationDA extends SiteVisualizationDA {

    @Override
    protected ActionForward getSiteDefaultView(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) {
	return mapping.findForward("degree-description");
    }

    @Override
    public ActionForward execute(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request,
	    HttpServletResponse response) throws Exception {
	Degree degree = getDegree(request);
	if (degree != null) {
	    request.setAttribute("degree", degree);
	}

	setPageLanguage(request);
	return super.execute(mapping, actionForm, request, response);
    }

    private void setPageLanguage(HttpServletRequest request) {
	Boolean inEnglish;

	String inEnglishParameter = request.getParameter("inEnglish");
	if (inEnglishParameter == null) {
	    inEnglish = (Boolean) request.getAttribute("inEnglish");
	} else {
	    inEnglish = Boolean.valueOf(inEnglishParameter);
	}

	if (inEnglish == null) {
	    inEnglish = getLocale(request).getLanguage().equals(Locale.ENGLISH.getLanguage());
	}

	request.setAttribute("inEnglish", inEnglish);
    }

    public Degree getDegree(HttpServletRequest request) {
	String parameter = request.getParameter("degreeID");

	if (parameter == null) {
	    return null;
	}

	try {
	    Integer oid = Integer.valueOf(parameter);
	    return RootDomainObject.getInstance().readDegreeByOID(oid);
	} catch (NumberFormatException e) {
	    return null;
	}
    }

    @Override
    protected String getDirectLinkContext(HttpServletRequest request) {
	Degree degree = getDegree(request);

	if (degree == null) {
	    return null;
	}

	if (degree.getSigla() == null) {
	    return null;
	}

	try {
	    return RequestUtils.absoluteURL(request, "/" + degree.getSigla().toLowerCase()).toString();
	} catch (MalformedURLException e) {
	    return null;
	}
    }

}