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

import java.util.Collections;

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

import net.sourceforge.fenixedu.applicationTier.Servico.exceptions.FenixServiceException;
import net.sourceforge.fenixedu.applicationTier.Servico.exceptions.NonExistingServiceException;
import net.sourceforge.fenixedu.applicationTier.Servico.publico.ReadCurriculumByCurricularCourseCode;
import net.sourceforge.fenixedu.dataTransferObject.ExecutionCourseSiteView;
import net.sourceforge.fenixedu.dataTransferObject.ISiteComponent;
import net.sourceforge.fenixedu.dataTransferObject.InfoCurriculum;
import net.sourceforge.fenixedu.dataTransferObject.InfoSiteCommon;
import net.sourceforge.fenixedu.dataTransferObject.InfoSiteFirstPage;
import net.sourceforge.fenixedu.dataTransferObject.InfoSiteSection;
import net.sourceforge.fenixedu.framework.factory.ServiceManagerServiceFactory;
import net.sourceforge.fenixedu.presentationTier.Action.base.FenixContextDispatchAction;
import net.sourceforge.fenixedu.presentationTier.Action.exceptions.FenixActionException;
import net.sourceforge.fenixedu.presentationTier.Action.exceptions.NonExistingActionException;

import org.apache.commons.beanutils.BeanComparator;
import org.apache.commons.collections.comparators.ComparatorChain;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.DynaActionForm;

/**
 * @author Tânia Pousão Create on 20/Nov/2003
 */
public class ShowCourseSiteAction extends FenixContextDispatchAction {

    public ActionForward showCurricularCourseSite(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request,
	    HttpServletResponse response) throws Exception {
	ActionErrors errors = new ActionErrors();

	// Integer executionPeriodOId = getFromRequest("executionPeriodOID",
	// request);

	DynaActionForm indexForm = (DynaActionForm) actionForm;
	Integer degreeId = getFromRequest("degreeID", request);
	request.setAttribute("degreeID", degreeId);

	Integer index = getFromRequest("index", request);
	request.setAttribute("index", index);

	Integer executionDegreeId = getFromRequest("executionDegreeID", request);
	request.setAttribute("executionDegreeID", executionDegreeId);

	Integer degreeCurricularPlanId = getFromRequest("degreeCurricularPlanID", request);
	request.setAttribute("degreeCurricularPlanID", degreeCurricularPlanId);

	Integer curricularCourseId = getFromRequest("curricularCourseID", request);
	request.setAttribute("curricularCourseID", curricularCourseId);

	Boolean inEnglish = getFromRequestBoolean("inEnglish", request);
	request.setAttribute("inEnglish", inEnglish);

	Integer curricularYear = (Integer) indexForm.get("curYear");

	indexForm.set("indice", indexForm.get("indice"));
	indexForm.set("curYear", curricularYear);

	InfoCurriculum infoCurriculum = null;
	try {
	    infoCurriculum = (InfoCurriculum) ReadCurriculumByCurricularCourseCode.run(curricularCourseId);
	} catch (NonExistingServiceException e) {
	    errors.add("chosenCurricularCourse", new ActionError("error.coordinator.chosenCurricularCourse"));
	} catch (FenixServiceException e) {
	    if (e.getMessage().equals("nullCurricularCourse")) {
		errors.add("nullCode", new ActionError("error.coordinator.noCurricularCourse"));
	    } else {
		throw new FenixActionException(e);
	    }
	}
	if (infoCurriculum == null) {
	    errors.add("noCurriculum", new ActionError("error.coordinator.noCurriculum"));
	}
	if (!errors.isEmpty()) {
	    saveErrors(request, errors);
	    return (new ActionForward(mapping.getInput()));
	}

	// order list of execution courses by name
	if (infoCurriculum.getInfoCurricularCourse() != null
		&& infoCurriculum.getInfoCurricularCourse().getInfoAssociatedExecutionCourses() != null) {
	    ComparatorChain comparatorChain = new ComparatorChain();
	    comparatorChain.addComparator(new BeanComparator("infoExecutionPeriod.infoExecutionYear.beginDate"), true);
	    comparatorChain.addComparator(new BeanComparator("infoExecutionPeriod.beginDate"), true);

	    Collections.sort(infoCurriculum.getInfoCurricularCourse().getInfoAssociatedExecutionCourses(), comparatorChain);
	}

	// order list by year, semester
	if (infoCurriculum.getInfoCurricularCourse() != null
		&& infoCurriculum.getInfoCurricularCourse().getCurricularCourseExecutionScope() != null) {
	    ComparatorChain comparatorChain = new ComparatorChain();
	    comparatorChain.addComparator(new BeanComparator("infoCurricularSemester.infoCurricularYear.year"));
	    comparatorChain.addComparator(new BeanComparator("infoCurricularSemester.semester"));
	    comparatorChain.addComparator(new BeanComparator("infoCurricularCourse.name"));
	    Collections.sort(infoCurriculum.getInfoCurricularCourse().getInfoScopes(), comparatorChain);
	}
	infoCurriculum.prepareEnglishPresentation(getLocale(request));
	request.setAttribute("infoCurriculum", infoCurriculum);

	return mapping.findForward("showCurricularCourseSite");

    }

    public ActionForward showExecutionCourseSite(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request,
	    HttpServletResponse response) throws Exception {

	Integer degreeId = getFromRequest("degreeID", request);
	request.setAttribute("degreeID", degreeId);

	Integer executionCourseId = getFromRequest("executionCourseID", request);
	request.setAttribute("executionCourseID", executionCourseId);

	ISiteComponent firstPageComponent = new InfoSiteFirstPage();
	ISiteComponent commonComponent = new InfoSiteCommon();

	Object[] args = { commonComponent, firstPageComponent, null, executionCourseId, null, null };
	ExecutionCourseSiteView siteView = null;

	try {
	    siteView = (ExecutionCourseSiteView) ServiceManagerServiceFactory.executeService(
		    "ExecutionCourseSiteComponentService", args);

	    request.setAttribute("objectCode", ((InfoSiteFirstPage) siteView.getComponent()).getSiteIdInternal());
	    request.setAttribute("siteView", siteView);
	    request.setAttribute("executionCourseCode", ((InfoSiteCommon) siteView.getCommonComponent()).getExecutionCourse()
		    .getIdInternal());
	    request.setAttribute("executionPeriodCode", ((InfoSiteCommon) siteView.getCommonComponent()).getExecutionCourse()
		    .getInfoExecutionPeriod().getIdInternal());
	    if (siteView.getComponent() instanceof InfoSiteSection) {
		request.setAttribute("infoSection", ((InfoSiteSection) siteView.getComponent()).getSection());
	    }
	} catch (NonExistingServiceException e) {
	    throw new NonExistingActionException("A disciplina", e);
	} catch (FenixServiceException e) {
	    throw new FenixActionException(e);
	}

	return mapping.findForward("showExecutionCourseSite");
    }

}