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

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.applicationTier.Servico.person.SearchPerson;
import net.sourceforge.fenixedu.applicationTier.Servico.person.SearchPerson.SearchParameters;
import net.sourceforge.fenixedu.applicationTier.Servico.person.SearchPerson.SearchPersonPredicate;
import net.sourceforge.fenixedu.dataTransferObject.library.LibraryUserListBean;
import net.sourceforge.fenixedu.dataTransferObject.library.LibraryUserSearchBean;
import net.sourceforge.fenixedu.domain.Person;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;
import net.sourceforge.fenixedu.domain.integration.koha.KohaRecord;
import net.sourceforge.fenixedu.domain.library.LibraryCard;
import net.sourceforge.fenixedu.presentationTier.Action.base.FenixDispatchAction;
import net.sourceforge.fenixedu.presentationTier.Action.exceptions.FenixActionException;

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

import pt.ist.fenixWebFramework.renderers.utils.RenderUtils;
import pt.ist.fenixframework.pstm.AbstractDomainObject;
import pt.utl.ist.fenix.tools.util.CollectionPager;

/**
 * This action is responsible for the manage library card number feature and
 * showing the information of the Koha record.
 * 
 * @author António Casqueiro (ajsco@iscte.pt)
 */
public class KohaIntegrationManagementDA extends FenixDispatchAction {

    public ActionForward prepare(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request,
	    HttpServletResponse response) throws FenixActionException, FenixFilterException {
	request.setAttribute("searchCriteria", new LibraryUserSearchBean());
	return mapping.findForward("search-criteria");
    }

    public ActionForward backToSearchCriteria(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) throws FenixActionException, FenixFilterException, FenixServiceException {
	final LibraryUserSearchBean searchBean = (LibraryUserSearchBean) getRenderedObject("searchCriteria");

	// Call invalidateViewState to clear the previous state, otherwise the
	// schema of the page appears empty.
	RenderUtils.invalidateViewState("searchCriteria");

	request.setAttribute("searchCriteria", searchBean);
	return mapping.findForward("search-criteria");
    }

    public ActionForward backToSearchResult(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) throws FenixActionException, FenixFilterException, FenixServiceException {
	return search(mapping, form, request, response);
    }

    public ActionForward search(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
	    throws FenixActionException, FenixFilterException, FenixServiceException {

	final LibraryUserSearchBean searchBean = (LibraryUserSearchBean) getRenderedObject("searchCriteria");
	request.setAttribute("searchCriteria", searchBean);

	String documentIdType = searchBean.getIdDocumentType() != null ? searchBean.getIdDocumentType().toString() : null;
	try {
	    SearchParameters searchParameters = new SearchPerson.SearchParameters(searchBean.getName(), null,
		    searchBean.getUsername(), searchBean.getIdDocumentNumber(), documentIdType, null, null, null, null,
		    Boolean.TRUE, null, Boolean.FALSE, null, null, null, null, searchBean.getLibraryCardNumber());

	    SearchPersonPredicate predicate = new SearchPerson.SearchPersonPredicate(searchParameters);

	    Object[] args = { searchParameters, predicate };

	    @SuppressWarnings("unchecked")
	    final CollectionPager<Person> result = (CollectionPager<Person>) executeService("SearchPerson", args);

	    final LibraryUserListBean list = new LibraryUserListBean(result.getCollection());
	    if (list.getPersons().size() == 0) {
		addActionMessage("message", request, "error.nonExisting.users");
	    } else {
		request.setAttribute("searchResult", list);
		return mapping.findForward("search-result");
	    }
	} catch (DomainException e) {
	    addActionMessage(request, e.getKey(), e.getArgs());
	}

	return mapping.findForward("search-criteria");
    }

    public ActionForward showDetail(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) throws FenixActionException, FenixFilterException, FenixServiceException {

	String id = request.getParameter("externalId");
	final LibraryUserSearchBean searchBean = (LibraryUserSearchBean) getRenderedObject("searchCriteria");
	request.setAttribute("searchCriteria", searchBean);

	// Read person
	final Person person = AbstractDomainObject.fromExternalId(id);

	// Find Koha record
	KohaRecord kohaRecord = KohaRecord.findRecord(person.getUsername());

	request.setAttribute("result", kohaRecord);
	return mapping.findForward("show-detail");
    }

    public ActionForward editLibraryCardNumber(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) throws FenixActionException, FenixFilterException, FenixServiceException {

	String id = request.getParameter("externalId");
	final LibraryUserSearchBean searchBean = (LibraryUserSearchBean) getRenderedObject("searchCriteria");
	request.setAttribute("searchCriteria", searchBean);

	// Read person
	final Person person = AbstractDomainObject.fromExternalId(id);

	// Get/create library card
	LibraryCard libraryCard = LibraryCard.getLibraryCardCreateEmptyIfNeeded(person);

	request.setAttribute("result", libraryCard);
	return mapping.findForward("edit-card");
    }

}