package com.germinus.merlin.controller.assignments;
   
   import java.util.Map;
   
   import org.apache.commons.logging.Log;
   import org.apache.commons.logging.LogFactory;
   import javax.portlet.ActionRequest;
   import javax.portlet.ActionResponse;
   import javax.portlet.RenderRequest;
  import javax.portlet.RenderResponse;
  
  import org.springframework.beans.factory.InitializingBean;
  import org.springframework.web.portlet.ModelAndView;
  import org.springframework.web.portlet.mvc.AbstractController;
  
  import com.germinus.liferay.util.ILiferayUtil;
  import com.germinus.merlin.manager.AssignmentManager;
  import com.germinus.merlin.manager.CourseManager;
  import com.germinus.merlin.model.Course;
  import com.germinus.merlin.util.IMerlinUtil;
  import com.liferay.portal.PortalException;
  import com.liferay.portal.SystemException;
  import com.liferay.portal.kernel.dao.search.SearchContainer;
  
  /**
   * Controller to show the adequate content in the page add assignment.
   * @author Rui Quintas
   * @version 1.0
   * @since 1.0
   * @author Jesús Rodríguez Martínez Gérminus XXI
   * @version 2.0
   * @since 2.0
   */
  public class AssignmentAddController extends AbstractController implements
  		InitializingBean {
  	
  	private ILiferayUtil liferayUtil;
  	private IMerlinUtil merlinUtil;
  	
  	private AssignmentManager assignmentManager;
  	private CourseManager courseManager;
  	
  	private static final Log log = LogFactory.getLog(AssignmentAddController.class);
  
  	public void afterPropertiesSet() throws Exception {
  	}
  	
  	/**
  	 * Process the action request. There is nothing to return.
  	 * @param request
  	 * @param response
  	 * @throws Exception
  	 */
  	public void handleActionRequestInternal(ActionRequest request,
  							ActionResponse response) throws Exception {
  		log.debug("Add Assignment to the model");
  		//get the course with the groupId of the current community
  		long courseId = liferayUtil.getComunityGroupId(request, response); 
  		Course course = courseManager.getCourse(courseId);
  		
  //		log.debug("Fecha Inicio: "+request.getParameter("startDate"));
  //		log.debug("Fecha Final: "+request.getParameter("endDate"));
  //		log.debug("Fecha Final: "+request.getAttribute("endDate"));
  		
  		assignmentManager.addAssignment(request,response,course);
  		
  		//handleRenderRequestInternal with this parameter knows if it have to show the add
  		//assignment form, or the assignmentlist
  		response.setRenderParameter("fin", "fin");
  	
      	log.debug("End Add Assignment to the model");
  	}
  
  	/**
  	 * Get the type of assignment and save it in the request.
  	 * Process the render request and return a ModelAndView object which the
  	 * DispatcherPortlet will render.
  	 * @param request
  	 * @param response
  	 * @throws Exception
  	 * @return ModelAndView
  	 */
  	public ModelAndView handleRenderRequestInternal(RenderRequest request,
  										RenderResponse response) throws Exception {
  		log.debug("Add Assignment Form or Assignments List");
  		
  		long courseId = liferayUtil.getComunityGroupId(request, response); 
  		//get the user type: student or teacher (another->error)
  		String usertype= merlinUtil.getUserType(request, response, courseId);
  		
  		if (usertype!="teacher"){ 
  			//security (an user can write ulr)
  			return new ModelAndView("errors/notAuthorized", "", null);
  		}
  		
  		if (request.getParameter("fin")!=null && request.getParameter("fin")=="fin"){
  			log.debug("Going to Assignments List");
  			//the assignment is added to the system
  			return goToAssignmentList(request, response, courseId, usertype);
 			
 		}
 		else { 
 			log.debug("Going to Add Assignments Form");
 			//select the form to add the assignment:
 			return goToAddAssignmentForm(request);
 		}
 	}
 
 	private ModelAndView goToAddAssignmentForm(RenderRequest request) {
 		//get the type of assignment and save it in the request
 		String assignmentType = request.getParameter("type");
 		request.setAttribute("param", assignmentType);
 
 		if (assignmentType.compareTo("Online Activity")==0){
 			return new ModelAndView("assignments/addAssignment/addAssignmentOnline", "", null);
 		}else
 			if (assignmentType.compareTo("Upload a Single File")==0){
 				return new ModelAndView("assignments/addAssignment/addAssignmentUploadSingleFile", "", null);
 			}else
 				if (assignmentType.compareTo("Offline Activity")==0){
 					return new ModelAndView("assignments/addAssignment/addAssignmentOffline", "", null);
 				} else 
 					return new ModelAndView("errors/error", "", null);
 	}
 
 	private ModelAndView goToAssignmentList(RenderRequest request,
 			RenderResponse response, long courseId, String usertype)
 			throws PortalException, SystemException {
 		
 		Course course = courseManager.getCourse(courseId);
 
 		
 		Map<String, SearchContainer> model ;
 		model= assignmentManager.listAssignment(request, response, course, usertype);
 		
 		if (usertype=="teacher"){
 			return new ModelAndView("assignments/listAssignment/teacherAssignmentsList", "model", model);
 		}
 		else
 			if (usertype=="student"){
 				return new ModelAndView("assignments/listAssignment/studentAssignmentsList", "model", model);
 			}
 			else //guest user, user without teacher or student role
 					return new ModelAndView("errors/notAuthorized", "", null);
 	}
 	
 	/**
 	 * @return the liferayUtil
 	 */
 	public ILiferayUtil getLiferayUtil() {
 		return liferayUtil;
 	}
 
 	/**
 	 * @param liferayUtil the liferayUtil to set
 	 */
 	public void setLiferayUtil(ILiferayUtil liferayUtil) {
 		this.liferayUtil = liferayUtil;
 	}
 
 	/**
 	 * @return the merlinUtil
 	 */
 	public IMerlinUtil getMerlinUtil() {
 		return merlinUtil;
 	}
 
 	/**
 	 * @param merlinUtil the merlinUtil to set
 	 */
 	public void setMerlinUtil(IMerlinUtil merlinUtil) {
 		this.merlinUtil = merlinUtil;
 	}
 
 
 	public AssignmentManager getAssignmentManager() {
 		return assignmentManager;
 	}
 
 
 	public void setAssignmentManager(AssignmentManager assignmentManager) {
 		this.assignmentManager = assignmentManager;
 	}
 
 
 	public CourseManager getCourseManager() {
 		return courseManager;
 	}
 
 
 	public void setCourseManager(CourseManager courseManager) {
 		this.courseManager = courseManager;
 	}
 
 }