AcademicsControllerImpl

/**
 * Copyright 2011-2013 The Kuali Foundation Licensed under the Educational
 * Community License, Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of the License
 * at
 *
 * http://www.osedu.org/licenses/ECL-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package org.kuali.mobility.academics.controllers;

import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.apache.commons.collections.CollectionUtils;

import org.apache.log4j.Logger;
import org.kuali.mobility.academics.entity.Career;
import org.kuali.mobility.academics.entity.CatalogNumber;
import org.kuali.mobility.academics.entity.Section;
import org.kuali.mobility.academics.entity.Subject;
import org.kuali.mobility.academics.entity.Term;
import org.kuali.mobility.academics.service.AcademicsService;
import org.kuali.mobility.academics.util.AcademicsConstants;
import org.kuali.mobility.academics.util.CareerPredicate;
import org.kuali.mobility.academics.util.CatalogNumberPredicate;
import org.kuali.mobility.academics.util.SubjectPredicate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

@Controller
@RequestMapping("/academics")
public class AcademicsControllerImpl {

	private static final Logger LOG = Logger.getLogger(AcademicsControllerImpl.class);
	@Autowired
	@Qualifier("academicsService")
	private AcademicsService service;

	public void setService(AcademicsService service) {
		this.service = service;
	}

	@RequestMapping(method = RequestMethod.GET)
	public String index(HttpServletRequest request, Model uiModel) {
		HttpSession session = request.getSession();
		session.removeAttribute("currentTerm");
		session.removeAttribute("currentCareer");
		session.removeAttribute("currentSection");
		session.removeAttribute("currentCatalogNumber");
		session.removeAttribute("sectionsAll");
		session.removeAttribute(AcademicsConstants.TERM_ID);
		session.removeAttribute(AcademicsConstants.TERM);
		session.removeAttribute(AcademicsConstants.CAREER_ID);
		session.removeAttribute(AcademicsConstants.CAREER);
		session.removeAttribute(AcademicsConstants.SUBJECT_ID);
		session.removeAttribute(AcademicsConstants.SUBJECT);
		session.removeAttribute(AcademicsConstants.CATALOG_NUMBER);
		session.removeAttribute(AcademicsConstants.CATALOG_DESCRIPTION);
		session.removeAttribute(AcademicsConstants.CLASS_NUMBER);
		session.removeAttribute(AcademicsConstants.CLASS_SECTION);
		session.removeAttribute(AcademicsConstants.COURSE_ID);
		session.removeAttribute(AcademicsConstants.COURSE_OFFER_NBR);
		session.removeAttribute(AcademicsConstants.SECTIONS);
		session.removeAttribute(AcademicsConstants.TERM_DESCRIPTION);
		return "academics/index";
	}

	@RequestMapping(value = "/terms")
	public String getTerms(HttpServletRequest request, Model uiModel) {
		HttpSession session = request.getSession();

		session.setAttribute(AcademicsConstants.TERM, service.getTerms());

		uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, request.getContextPath() + "/academics/");
		return "academics/terms";
	}

	@RequestMapping(value = "/careers")
	public String getCareers(HttpServletRequest request, Model uiModel,
			@RequestParam(required = true) final String termId) {
		HttpSession session = request.getSession();
		if (termId.equalsIgnoreCase((String) session.getAttribute(AcademicsConstants.TERM_ID))) {
			// use cached data
			uiModel.addAttribute(AcademicsConstants.TITLE, ((Term)session.getAttribute("currentTerm")).getDescription());
		} else {
			Term term = service.getTerm(termId);
			session.setAttribute(AcademicsConstants.TERM_ID, termId);
			session.setAttribute("currentTerm", term);
			List<? extends Career> lCareers = service.getCareers(termId);
			session.setAttribute(AcademicsConstants.CAREER, lCareers);
			session.setAttribute("watermark", "Search " + term.getDescription() + " Classes");
			uiModel.addAttribute(AcademicsConstants.TITLE, ((Term)session.getAttribute("currentTerm")).getDescription());
		}

		uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, request.getContextPath() + "/academics/terms");
		return "academics/careers";
	}

	@RequestMapping(value = "/subjects")
	public String getCareers(HttpServletRequest request, Model uiModel,
			@RequestParam(required = true) final String termId,
			@RequestParam(required = true) final String careerId) {
		HttpSession session = request.getSession();
		if (termId.equalsIgnoreCase((String) session.getAttribute(AcademicsConstants.TERM_ID))
				&& careerId.equalsIgnoreCase((String) session.getAttribute(AcademicsConstants.CAREER_ID))) {
			// Use cached data.
//			uiModel.addAttribute(AcademicsConstants.TITLE, ((Career)session.getAttribute("currentCareer")).getShortDescription());
			uiModel.addAttribute(AcademicsConstants.TITLE, "Subjects" );
		} else {
			Term term = service.getTerm(termId);
			session.setAttribute(AcademicsConstants.TERM_ID, term.getId());
			session.setAttribute("currentTerm", term);

			session.setAttribute(AcademicsConstants.CAREER_ID, careerId);
			Career career = (Career) CollectionUtils.find((List<Career>) session.getAttribute(AcademicsConstants.CAREER), new CareerPredicate(careerId));
			session.setAttribute("currentCareer", career);

			List<? extends Subject> lSubjects = service.getSubjects(termId, careerId);
			session.setAttribute(AcademicsConstants.SUBJECT, lSubjects);
//			uiModel.addAttribute(AcademicsConstants.TITLE, ((Career)session.getAttribute("currentCareer")).getShortDescription());
			uiModel.addAttribute(AcademicsConstants.TITLE, "Subjects" );
		}
		uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, request.getContextPath() + "/academics/careers?termId=" + session.getAttribute(AcademicsConstants.TERM_ID));
		return "academics/subjects";
	}

	@RequestMapping(value = "/catalogNumbers")
	public String getCareers(HttpServletRequest request, Model uiModel,
			@RequestParam(required = true)
			final String termId,
			@RequestParam(required = true)
			final String careerId,
			@RequestParam(required = true)
			final String subjectId) {
		HttpSession session = request.getSession();
		if (termId.equalsIgnoreCase((String) session.getAttribute(AcademicsConstants.TERM_ID))
				&& careerId.equalsIgnoreCase((String) session.getAttribute(AcademicsConstants.CAREER_ID))
				&& subjectId.equalsIgnoreCase((String) session.getAttribute(AcademicsConstants.SUBJECT_ID))) {
			// Use cached data.
			uiModel.addAttribute(AcademicsConstants.TITLE, ((Subject)session.getAttribute("currentSubject")).getDescription());
		} else {
			Term term = service.getTerm(termId);
			session.setAttribute(AcademicsConstants.TERM_ID, term.getId());
			session.setAttribute("currentTerm", term);
			session.setAttribute(AcademicsConstants.CAREER_ID, careerId);
			Career career = (Career) CollectionUtils.find((List<Career>) session.getAttribute(AcademicsConstants.CAREER), new CareerPredicate(careerId));
			session.setAttribute("currentCareer", career);
			session.setAttribute(AcademicsConstants.SUBJECT_ID, subjectId);
			Subject subject = (Subject)CollectionUtils.find((List<Subject>) session.getAttribute(AcademicsConstants.SUBJECT), new SubjectPredicate(subjectId));
			session.setAttribute("currentSubject", subject);
			List<? extends CatalogNumber> lCatalogNumbers = service.getCatalogNumbers(termId, subjectId);
			session.setAttribute("catalogNumbers", lCatalogNumbers);

			uiModel.addAttribute(AcademicsConstants.TITLE, ((Subject)session.getAttribute("currentSubject")).getDescription());
		}
		uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, request.getContextPath() + "/academics/subjects?termId=" + session.getAttribute(AcademicsConstants.TERM_ID) + "&careerId=" + session.getAttribute(AcademicsConstants.CAREER_ID));
		return "academics/catalogNumbers";
	}

	@RequestMapping(value = "/browseClasses")
	public String browseClasses(HttpServletRequest request, Model uiModel,
			@RequestParam(required = false) String stage,
			@RequestParam(required = false)
			final String termId,
			@RequestParam(required = false)
			final String subjectId,
			@RequestParam(required = false)
			final String subject,
			@RequestParam(required = false)
			final String careerId,
			@RequestParam(required = false)
			final String catalogNumber,
			@RequestParam(required = false)
			final String catalogDescription) {
		HttpSession session = request.getSession();
		if (stage != null) {
			session.setAttribute(AcademicsConstants.STAGE, stage);
		} else {
			stage = AcademicsConstants.TERM;
		}
		if (termId != null && termId.length() > 0) {
			session.setAttribute(AcademicsConstants.TERM_ID, termId);
		}
		if (subjectId != null && subjectId.length() > 0) {
			session.setAttribute(AcademicsConstants.SUBJECT_ID, subjectId);
		}
		if (subject != null && subject.length() > 0) {
			session.setAttribute(AcademicsConstants.SUBJECT, subject);
		}
		if (careerId != null && careerId.length() > 0) {
			session.setAttribute(AcademicsConstants.CAREER_ID, careerId);
		}
		if (catalogNumber != null && catalogNumber.length() > 0) {
			session.setAttribute(AcademicsConstants.CATALOG_NUMBER, catalogNumber);
		}
		uiModel.addAttribute(AcademicsConstants.STAGE, stage);
		uiModel.addAttribute(AcademicsConstants.TERM_ID, session.getAttribute(AcademicsConstants.TERM_ID));
		uiModel.addAttribute(AcademicsConstants.SUBJECT_ID, session.getAttribute(AcademicsConstants.SUBJECT_ID));
		uiModel.addAttribute(AcademicsConstants.CAREER_ID, session.getAttribute(AcademicsConstants.CAREER_ID));
		uiModel.addAttribute(AcademicsConstants.CATALOG_NUMBER, session.getAttribute(AcademicsConstants.CATALOG_NUMBER));
		uiModel.addAttribute(AcademicsConstants.SUBJECT, session.getAttribute(AcademicsConstants.SUBJECT));
		uiModel.addAttribute("toolContext", "academics");
		if (stage.equalsIgnoreCase(AcademicsConstants.CATALOG_NUMBER)) {
			uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, "browseClasses?stage=" + AcademicsConstants.SUBJECT);
		} else if (stage.equalsIgnoreCase(AcademicsConstants.SUBJECT)) {
			uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, "browseClasses?stage=" + AcademicsConstants.CAREER);
		} else if (stage.equalsIgnoreCase(AcademicsConstants.CAREER)) {
			uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, "browseClasses?stage=" + AcademicsConstants.TERM);
		}

//		Enumeration<String> e = session.getAttributeNames();
//		while (e.hasMoreElements()) {
//			String key = e.nextElement();
//			LOG.debug("Session contains: [" + key + "] [" + session.getAttribute(key) + "]");
//		}

		return "academics/browseClasses";
	}

	@RequestMapping(value = "/sections")
	public String getSections(HttpServletRequest request, Model uiModel,
			@RequestParam(required = false)
			final String termId,
			@RequestParam(required = false)
			final String subjectId,
			@RequestParam(required = false)
			final String catalogNumber,
			@RequestParam(required = false)
			final String careerId) {
		HttpSession session = request.getSession();
		if (termId.equalsIgnoreCase((String) session.getAttribute(AcademicsConstants.TERM_ID))
				&& careerId.equalsIgnoreCase((String) session.getAttribute(AcademicsConstants.CAREER_ID))
				&& subjectId.equalsIgnoreCase((String) session.getAttribute(AcademicsConstants.CAREER_ID))
				&& catalogNumber.equalsIgnoreCase((String) session.getAttribute(AcademicsConstants.CATALOG_NUMBER))) {
			uiModel.addAttribute(AcademicsConstants.TITLE, session.getAttribute(AcademicsConstants.SUBJECT_ID) + " " + session.getAttribute(AcademicsConstants.CATALOG_NUMBER));
		} else {
			List<Section> lSections = (List<Section>) service.getSections(termId, subjectId, catalogNumber, careerId);
			session.setAttribute("sectionsAll", lSections);
			session.setAttribute(AcademicsConstants.CATALOG_NUMBER, catalogNumber);
			CatalogNumber number = (CatalogNumber) CollectionUtils.find((List<CatalogNumber>) session.getAttribute("catalogNumbers"), new CatalogNumberPredicate(catalogNumber));
			session.setAttribute("currentCatalogNumber", number);
			session.setAttribute(AcademicsConstants.SUBJECT_ID, subjectId);
			session.setAttribute("sectionsAll", lSections);
			uiModel.addAttribute(AcademicsConstants.TITLE, session.getAttribute(AcademicsConstants.SUBJECT_ID) + " " + session.getAttribute(AcademicsConstants.CATALOG_NUMBER));
		}
		uiModel.addAttribute("toolContext", "academics");
		uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, request.getContextPath() + "/academics/catalogNumbers?termId=" + termId + "&careerId=" + careerId + "&subjectId=" + subjectId);
		return "academics/sections";
	}

	@RequestMapping(value = "/sectionsDetail")
	public String getSectionsDetail(HttpServletRequest request, Model uiModel,
			@RequestParam(required = false)
			final String catalogDescription,
			@RequestParam(required = true)
			final String sectionUID) {
		HttpSession session = request.getSession();
		Section sectionDetail = null;
		LOG.debug("Entering getSectionsDetail looking for sectionUID [" + sectionUID + "]");
		if (null != session.getAttribute(AcademicsConstants.SECTIONS)) {
			LOG.debug("Sections are stored in the session.");
			List<Section> allSections = (List<Section>) session.getAttribute(AcademicsConstants.SECTIONS);
			for (Section thisSection : allSections) {
				LOG.debug("Testing section [" + thisSection.getSectionUID() + "]");
				if (sectionUID.equalsIgnoreCase(thisSection.getSectionUID())) {
					LOG.debug("Matching section found, loading remaining details.");
					sectionDetail = service.getSectionDetail(thisSection);
					break;
				}
			}
		}
//		uiModel.addAttribute(AcademicsConstants.CATALOG_DESCRIPTION, session.getAttribute(AcademicsConstants.CATALOG_DESCRIPTION));
		uiModel.addAttribute(AcademicsConstants.TITLE, sectionDetail.getSubjectId() + " " + sectionDetail.getCatalogNumber());
		uiModel.addAttribute("thisSection", sectionDetail);
		uiModel.addAttribute("toolContext", "academics");
		//LOG.debug("BACKBUTTON_URL from request for sectionDetail: -" + session.getAttribute("backButtonURL"));
//        String backurl = (String) session.getAttribute("backButtonURL");
//        if(backurl.equalsIgnoreCase("search"))
//        {
//           uiModel.addAttribute("backButtonURL","academics/classSearch");
//        }
//        else
//        {
//           uiModel.addAttribute("backButtonURL","academics/sections?termId="+session.getAttribute(AcademicsConstants.TERM_ID)+"&careerId="+session.getAttribute(AcademicsConstants.CAREER_ID)+"&subjectId="+session.getAttribute(AcademicsConstants.SUBJECT_ID)+"&catalogNumber="+session.getAttribute(AcademicsConstants.CATALOG_NUMBER)+"&catalogDescription="+session.getAttribute(AcademicsConstants.CATALOG_DESCRIPTION));
//        }
		uiModel.addAttribute("backButtonURL", request.getHeader("referer"));
		return "academics/sectionsDetail";
	}

	@RequestMapping(value = "/search")
	public String searchForm(Model uiModel) {
		uiModel.addAttribute(AcademicsConstants.TERM_ID, service.getTerms());
		uiModel.addAttribute(AcademicsConstants.CAREER_ID, service.getCareers("ALL"));
		uiModel.addAttribute(AcademicsConstants.SUBJECT_ID, service.getSubjects("ALL", "ALL"));
		uiModel.addAttribute("toolContext", "academics");
                uiModel.addAttribute(AcademicsConstants.TITLE, "Search Classes");
		return "academics/search";
	}

	//@RequestMapping(value = "/classSearch", method = RequestMethod.POST)
	public String searchResults(HttpServletRequest request, Model uiModel,
			@RequestParam(required = false)
			final String termId,
			@RequestParam(required = false)
			final String termDescription,
			@RequestParam(required = false)
			final String careerId,
			@RequestParam(required = false)
			final String subjectId,
			@RequestParam(required = false)
			final String instructor,
			@RequestParam(required = false)
			final String searchCriteria,
			@RequestParam(required = false)
			final String filterCriteria,
			@RequestParam(required = false)
			final String showOpen,
			@RequestParam(required = false)
			final String distributionReq,
			@RequestParam(required = false)
			final String otherReq,
			@RequestParam(required = false)
			final String keyword) {
		List<Section> lSections = (List<Section>) service.getSearchResults(termId, careerId, subjectId, instructor, searchCriteria, filterCriteria, showOpen, distributionReq, otherReq, keyword);
		LOG.debug("Sections classSearch POST  " + lSections.size() + " items long.");
		HttpSession session = request.getSession();
		session.setAttribute("sectionsAll", lSections);
//            session.setAttribute(AcademicsConstants.TITLE,subjectId);
		session.setAttribute("toolContext", "academics");
		session.setAttribute(AcademicsConstants.SUBJECT_ID, subjectId);
//			uiModel.addAttribute(AcademicsConstants.CATALOG_DESCRIPTION, session.getAttribute(AcademicsConstants.CATALOG_DESCRIPTION));
//	    	uiModel.addAttribute(AcademicsConstants.TITLE,subjectId);
		uiModel.addAttribute("sectionsAll", lSections);
		uiModel.addAttribute("toolContext", "academics");

		uiModel.addAttribute(AcademicsConstants.TITLE, "Search Results");

		if (lSections.size() > 100)
           {uiModel.addAttribute("rowsFnd", "100");}
        else
           {uiModel.addAttribute("rowsFnd", "99");}

		if (request.getHeader("referer") != null && !request.getHeader("referer").isEmpty()) {
			session.setAttribute(AcademicsConstants.BACKBUTTON_URL, request.getHeader("referer"));
			uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, request.getHeader("referer"));
		} else {
			session.setAttribute(AcademicsConstants.BACKBUTTON_URL, request.getContextPath() + "/academics/search");
			uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, request.getContextPath() + "/academics/search");
		}
		return "academics/sections";
	}

        @RequestMapping(value = "/classSearch", method = RequestMethod.POST)
        public String getSearchResults(HttpServletRequest request, Model uiModel) {
            Map<String, String[]> inputMap = request.getParameterMap();
            LOG.debug("search request parameter map:");
            Iterator<Map.Entry<String, String[]>> mapIterator = inputMap.entrySet().iterator();
            while (mapIterator.hasNext()) {
                Map.Entry<String, String[]> entry = mapIterator.next();
                LOG.debug(entry.getKey() + ": " + Arrays.toString(entry.getValue()));
            }

            List<Section> lSections = (List<Section>) service.getSearchResults(inputMap);

            LOG.debug("Sections classSearch POST  " + lSections.size() + " items long.");
            HttpSession session = request.getSession();
            session.setAttribute("sectionsAll", lSections);
//            session.setAttribute(AcademicsConstants.TITLE,subjectId);
            session.setAttribute("toolContext", "academics");
//		session.setAttribute(AcademicsConstants.SUBJECT_ID, subjectId);
//		uiModel.addAttribute(AcademicsConstants.CATALOG_DESCRIPTION, session.getAttribute(AcademicsConstants.CATALOG_DESCRIPTION));
//	    	uiModel.addAttribute(AcademicsConstants.TITLE,subjectId);
            uiModel.addAttribute("sectionsAll", lSections);
            uiModel.addAttribute("toolContext", "academics");

            uiModel.addAttribute(AcademicsConstants.TITLE, "Search Results");

            if (lSections.size() > 100) {
                uiModel.addAttribute("rowsFnd", "100");
            }
            else {
                uiModel.addAttribute("rowsFnd", "99");
            }

            if (request.getHeader("referer") != null && !request.getHeader("referer").isEmpty()) {
                    session.setAttribute(AcademicsConstants.BACKBUTTON_URL, request.getHeader("referer"));
                    uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, request.getHeader("referer"));
            } else {
                    session.setAttribute(AcademicsConstants.BACKBUTTON_URL, request.getContextPath() + "/academics/search");
                    uiModel.addAttribute(AcademicsConstants.BACKBUTTON_URL, request.getContextPath() + "/academics/search");
            }
            return "academics/sections";
        }

	@RequestMapping(value = "/classSearch", method = RequestMethod.GET)
	public String searchResults(HttpServletRequest request, Model uiModel) {
		HttpSession session = request.getSession();
		uiModel.addAttribute(AcademicsConstants.TITLE, "Search Results");
		uiModel.addAttribute("sectionsAll", session.getAttribute("sectionsAll"));
		uiModel.addAttribute("toolContext", session.getAttribute("toolContext"));
		uiModel.addAttribute("backButtonURL", session.getAttribute("backButtonURL"));
		return "academics/sections";
	}
}