/*
 * OpenClinica is distributed under the
 * GNU Lesser General Public License (GNU LGPL).

 * For details see: http://www.openclinica.org/license
 * copyright 2003-2005 Akaza Research
 */
package org.akaza.openclinica.control.managestudy;

import org.akaza.openclinica.bean.core.AuditableEntityBean;
import org.akaza.openclinica.bean.core.Role;
import org.akaza.openclinica.bean.managestudy.StudyBean;
import org.akaza.openclinica.bean.managestudy.StudyEventBean;
import org.akaza.openclinica.bean.managestudy.StudyEventDefinitionBean;
import org.akaza.openclinica.bean.managestudy.StudySubjectBean;
import org.akaza.openclinica.bean.submit.DisplayTableOfContentsBean;
import org.akaza.openclinica.bean.submit.EventCRFBean;
import org.akaza.openclinica.control.core.SecureController;
import org.akaza.openclinica.control.form.FormProcessor;
import org.akaza.openclinica.control.submit.TableOfContentsServlet;
import org.akaza.openclinica.dao.managestudy.StudyEventDAO;
import org.akaza.openclinica.dao.managestudy.StudyEventDefinitionDAO;
import org.akaza.openclinica.dao.managestudy.StudySubjectDAO;
import org.akaza.openclinica.dao.submit.EventCRFDAO;
import org.akaza.openclinica.view.Page;
import org.akaza.openclinica.web.InsufficientPermissionException;

/**
 * @author jxu
 * 
 *         Views the content of an event CRF
 */
public class ViewEventCRFContentServlet extends SecureController {

    public static final String BEAN_STUDY_EVENT = "studyEvent";

    /**
     * Checks whether the user has the correct privilege
     */
    @Override
    public void mayProceed() throws InsufficientPermissionException {
        if (ub.isSysAdmin()) {
            return;
        }
        if (currentRole.getRole().equals(Role.STUDYDIRECTOR) || currentRole.getRole().equals(Role.COORDINATOR)
            || currentRole.getRole().equals(Role.INVESTIGATOR) || currentRole.getRole().equals(Role.RESEARCHASSISTANT) || currentRole.getRole().equals(Role.RESEARCHASSISTANT2)) {
            return;
        }

        addPageMessage(respage.getString("no_have_correct_privilege_current_study") + " " + respage.getString("change_study_contact_sysadmin"));
        throw new InsufficientPermissionException(Page.MENU_SERVLET, resexception.getString("no_permission"), "1");

    }

    /*
     * Get the Study Event to display on screen as well as print some of its
     * information. Krikor 10/19/2006
     */
    private StudyEventBean getStudyEvent(int eventId) throws Exception {

        StudyEventDAO sedao = new StudyEventDAO(sm.getDataSource());
        StudyBean studyWithSED = currentStudy;
        if (currentStudy.getParentStudyId() > 0) {
            studyWithSED = new StudyBean();
            studyWithSED.setId(currentStudy.getParentStudyId());
        }

        AuditableEntityBean aeb = sedao.findByPKAndStudy(eventId, studyWithSED);

        if (!aeb.isActive()) {
            addPageMessage(respage.getString("the_SE_you_attempting_enter_data_not_belong"));
            throw new InsufficientPermissionException(Page.LIST_STUDY_SUBJECTS_SERVLET, resexception.getString("SE_does_not_belong_current_study"), "1");

            // >> changed tbh, 06/2009
        }

        StudyEventBean seb = (StudyEventBean) aeb;

        StudyEventDefinitionDAO seddao = new StudyEventDefinitionDAO(sm.getDataSource());
        StudyEventDefinitionBean sedb = (StudyEventDefinitionBean) seddao.findByPK(seb.getStudyEventDefinitionId());
        seb.setStudyEventDefinition(sedb);
        return seb;
    }

    @Override
    public void processRequest() throws Exception {
        FormProcessor fp = new FormProcessor(request);
        int eventCRFId = fp.getInt("ecId", true);
        int studySubId = fp.getInt("id", true);
        int eventId = fp.getInt("eventId", true);
        if (eventCRFId == 0) {
            addPageMessage(respage.getString("please_choose_an_event_CRF_to_view"));
            forwardPage(Page.VIEW_STUDY_SUBJECT_SERVLET);
            return;
        }

        StudyEventBean seb = getStudyEvent(eventId);

        StudySubjectDAO subdao = new StudySubjectDAO(sm.getDataSource());
        StudySubjectBean studySub = (StudySubjectBean) subdao.findByPK(studySubId);
        request.setAttribute("studySub", studySub);

        EventCRFDAO ecdao = new EventCRFDAO(sm.getDataSource());
        EventCRFBean eventCRF = (EventCRFBean) ecdao.findByPK(eventCRFId);
        DisplayTableOfContentsBean displayBean = TableOfContentsServlet.getDisplayBean(eventCRF, sm.getDataSource(), currentStudy);
        request.setAttribute("toc", displayBean);
        request.getSession().setAttribute(BEAN_STUDY_EVENT, seb);
        forwardPage(Page.VIEW_EVENT_CRF_CONTENT);

    }

}