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

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.SortedSet;

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

import net.sourceforge.fenixedu.applicationTier.Filtro.exception.FenixFilterException;
import net.sourceforge.fenixedu.applicationTier.Servico.exceptions.FenixServiceException;
import net.sourceforge.fenixedu.domain.system.CronRegistry;
import net.sourceforge.fenixedu.domain.system.CronScriptInvocation;
import net.sourceforge.fenixedu.domain.system.CronScriptState;
import net.sourceforge.fenixedu.domain.system.CronScriptState.RunNowExecutor;
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.utl.ist.fenix.tools.util.CollectionPager;

public class CronDA extends FenixDispatchAction {

    public ActionForward showScripts(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) {
	request.setAttribute("cronRegistry", CronRegistry.getInstance());

	final List<CronScriptState> activeCronScriptStates = new ArrayList<CronScriptState>();
	final List<CronScriptState> inActiveCronScriptStates = new ArrayList<CronScriptState>();
	for (final CronScriptState cronScriptState : rootDomainObject.getCronScriptStatesSet()) {
	    if (cronScriptState.getActive().booleanValue()) {
		activeCronScriptStates.add(cronScriptState);
	    } else {
		inActiveCronScriptStates.add(cronScriptState);
	    }
	}

	Collections.sort(activeCronScriptStates, CronScriptState.COMPARATOR_BY_ABSOLUTE_EXECUTION_ORDER);
	Collections.sort(inActiveCronScriptStates, CronScriptState.COMPARATOR_BY_CRON_SCRIPT_CLASSNAME);
	request.setAttribute("activeCronScriptStates", activeCronScriptStates);
	request.setAttribute("inActiveCronScriptStates", inActiveCronScriptStates);

	return mapping.findForward("showCronScripts");
    }

    public ActionForward runNow(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
	    throws FenixFilterException, FenixServiceException {
	final String cronScriptStateIDString = request.getParameter("cronScriptStateID");
	final CronScriptState cronScriptState = rootDomainObject.readCronScriptStateByOID(Integer
		.valueOf(cronScriptStateIDString));

	executeFactoryMethod(new RunNowExecutor(cronScriptState));

	return showScripts(mapping, form, request, response);
    }

    public ActionForward showScript(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) {
	final String cronScriptStateIDString = request.getParameter("cronScriptStateID");
	final CronScriptState cronScriptState = rootDomainObject.readCronScriptStateByOID(Integer
		.valueOf(cronScriptStateIDString));
	request.setAttribute("cronScriptState", cronScriptState);

	final String pageNumberString = request.getParameter("pageNumber");
	final Integer pageNumber = pageNumberString != null && pageNumberString.length() > 0 ? Integer.valueOf(pageNumberString)
		: Integer.valueOf(1);
	request.setAttribute("pageNumber", pageNumber);

	final SortedSet<CronScriptInvocation> cronScriptInvocations = cronScriptState
		.getCronScriptInvocationsSetSortedByInvocationStartTime();
	final CollectionPager<CronScriptInvocation> cronScriptInvocationPager = new CollectionPager<CronScriptInvocation>(
		cronScriptInvocations, 200);
	request.setAttribute("cronScriptInvocationsPage", cronScriptInvocationPager.getPage(pageNumber.intValue()));
	request.setAttribute("numberOfPages", Integer.valueOf(cronScriptInvocationPager.getNumberOfPages()));

	return mapping.findForward("showCronScript");
    }

    public ActionForward showScriptInvocationLog(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) {
	final String cronScriptInvocationIDString = request.getParameter("cronScriptInvocationID");
	final CronScriptInvocation cronScriptInvocation = rootDomainObject.readCronScriptInvocationByOID(Integer
		.valueOf(cronScriptInvocationIDString));
	request.setAttribute("cronScriptInvocation", cronScriptInvocation);
	return mapping.findForward("showCronScriptInvocationLog");
    }

}