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

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

import net.sourceforge.fenixedu.dataTransferObject.research.result.ExecutionYearBean;
import net.sourceforge.fenixedu.domain.Department;
import net.sourceforge.fenixedu.domain.ExecutionYear;
import net.sourceforge.fenixedu.domain.TeacherExpectationDefinitionPeriod;
import net.sourceforge.fenixedu.presentationTier.Action.base.FenixDispatchAction;

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

import pt.ist.fenixWebFramework.renderers.components.state.IViewState;
import pt.ist.fenixWebFramework.renderers.utils.RenderUtils;

public class TeacherPersonalExpectationsDefinitionPeriodDA extends FenixDispatchAction {

    public ActionForward showPeriod(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) throws Exception {

	ExecutionYear year = ExecutionYear.readCurrentExecutionYear();
	readAndSetPeriod(request, year);
	request.setAttribute("bean", new ExecutionYearBean(year));
	return mapping.findForward("showDefinitionPeriod");
    }

    public ActionForward showPeriodWithSelectedYear(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) throws Exception {

	IViewState viewState = RenderUtils.getViewState("executionYear");
	ExecutionYear executionYear = (ExecutionYear) viewState.getMetaObject().getObject();
	readAndSetPeriod(request, executionYear);
	request.setAttribute("bean", new ExecutionYearBean(executionYear));
	return mapping.findForward("showDefinitionPeriod");
    }

    public ActionForward showPeriodInExecutionYear(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) throws Exception {

	ExecutionYear executionYear = getExecutionYearFromParameter(request);
	readAndSetPeriod(request, executionYear);
	request.setAttribute("bean", new ExecutionYearBean(executionYear));
	return mapping.findForward("showDefinitionPeriod");
    }

    public ActionForward createPeriod(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) throws Exception {

	ExecutionYear executionYear = getExecutionYearFromParameter(request);
	request.setAttribute("executionYear", executionYear);
	request.setAttribute("department", getDepartment(request));
	return mapping.findForward("editDefinitionPeriod");
    }

    public ActionForward editPeriod(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) throws Exception {

	ExecutionYear executionYear = getExecutionYearFromParameter(request);
	readAndSetPeriod(request, executionYear);
	return mapping.findForward("editDefinitionPeriod");
    }

    // Private Methods

    protected void readAndSetPeriod(HttpServletRequest request, ExecutionYear executionYear) {
	if (executionYear != null) {
	    TeacherExpectationDefinitionPeriod teacherExpectationDefinitionPeriod = getDepartment(request)
		    .getTeacherExpectationDefinitionPeriodForExecutionYear(executionYear);
	    request.setAttribute("period", teacherExpectationDefinitionPeriod);
	}
    }

    protected ExecutionYear getExecutionYearFromParameter(final HttpServletRequest request) {
	final String executionYearIDString = request.getParameter("executionYearId");
	final Integer executionYearID = Integer.valueOf(executionYearIDString);
	return rootDomainObject.readExecutionYearByOID(executionYearID);
    }

    protected Department getDepartment(HttpServletRequest request) {
	return getLoggedPerson(request).getEmployee().getCurrentDepartmentWorkingPlace();
    }
}