EditResponseControl.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2019 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.students.www;
 
import java.util.Date;
import org.turro.action.Contacts;
import org.turro.auth.Authentication;
import org.turro.collections.KeyValueMap;
import org.turro.elephant.TemplateControl;
import org.turro.elephant.context.Application;
import org.turro.entities.EntityCombobox;
import org.turro.jpa.Dao;
import org.turro.marker.MarkerHelper;
import org.turro.plugin.contacts.IContact;
import org.turro.students.db.StudentsPU;
import org.turro.students.entities.Challenge;
import org.turro.students.entities.Response;
import org.turro.students.mail.ChallengeChangedNotification;
import org.turro.students.mail.NewResponseNotification;
import org.turro.zkoss.text.WikiEditor;
import org.zkoss.zk.ui.select.annotation.Listen;
import org.zkoss.zk.ui.select.annotation.Wire;
import org.zkoss.zul.Div;
import org.zkoss.zul.Hlayout;
import org.zkoss.zul.Html;
 
public class EditResponseControl extends TemplateControl {
  
  private Response response;
  private String contextPath;
 
  @Wire("#studentbox") private Div studentbox;
  @Wire("#text") private WikiEditor text;
  @Wire("#students") private Hlayout students;
  @Wire("#newStudent") private EntityCombobox studentCombobox;
  
  @Listen("onChange=#text")
  public void onText() {
    response.setWikiText(text.getValue());
  }
 
  @Listen("onClick=#addStudent")
  public void onAddStudent() {
    response.addStudent(Contacts.getContact(studentCombobox.getObjectValue()));
    updateStudents();
  }
 
  @Listen("onClick=#save")
  public void onSave() {
    if(!response.isEmpty()) {
      boolean isNew = response.getId() == null;
      response = getDao().saveObject(response);
      response.addStudent(Authentication.getIContact());
      if(response.getId() != null && response.getId() > 0) {
        Application.getApplication().sendRedirect(contextPath + "?" + 
                MarkerHelper.setObfuscatedRightNowPars("item=" + response.getChallenge().getId()));
      } else {
        Application.getApplication().sendRedirect(contextPath); 
      }
      if(isNew) {
        new NewResponseNotification(response).sendNotification();
      } else {
        new ChallengeChangedNotification(response).sendNotification();
      }
    }
  }
  
  @Listen("onClick=#cancel")
  public void onCancel() {
    if(response.getId() != null && response.getId() > 0) {
      Application.getApplication().sendRedirect(contextPath + "?" + 
              MarkerHelper.setObfuscatedRightNowPars("item=" + response.getChallenge().getId()));
    } else {
      Application.getApplication().sendRedirect(contextPath); 
    }
  }
  
  public String getContextPath() {
    return contextPath;
  }
 
  public void setContextPath(String contextPath) {
    this.contextPath = contextPath;
  }
 
  public void setResponse(Response response) {
    this.response = response;
  }
 
  public Response getResponse() {
    checkResponse();
    return response;
  }
 
  @Override
  protected void doFinally() {
    super.doFinally();
    checkResponse();
    initComponents();
  }  
 
  private void checkResponse() {
    KeyValueMap kvm = MarkerHelper.getObfuscatedParameters();
    if(response == null) {
      if(kvm != null && !kvm.isEmpty() && kvm.containsKey("item")) {
        Long responseId = kvm.get(Long.class, "item");
        if(responseId > 0) {
          response = getDao().find(Response.class, responseId);
        }
      }
    }
    if(response == null) {
      if(kvm != null && !kvm.isEmpty() && kvm.containsKey("challenge")) {
        Challenge challenge = null;
        Long challengeId = kvm.get(Long.class, "challenge");
        if(challengeId > 0) {
          challenge = getDao().find(Challenge.class, challengeId);
        }
        IContact contact = Authentication.getIContact();
        if(challenge != null && (contact.isStudent() || contact.isAdmin())) {
          response = new Response();
          response.setCreation(new Date());
          response.setChallenge(challenge);
          response.addStudent(contact);
        } else {
          Application.getApplication().sendRedirect(contextPath);
        }
      } else {
        Application.getApplication().sendRedirect(contextPath);
      }
    }
  }
  
  private void initComponents() {
    if(response.getId() != null && response.getId() > 0) {
      IContact contact = Authentication.getIContact();
      if(contact.isAdmin() || contact.isStudent()) {
        text.setValue(response.getWikiText());
        text.setFileFolder("/_internal/files/response/" + response.getId());
        text.setImageFolder("/_internal/files/response/" + response.getId());
        updateStudents();
      } else {
        Application.getApplication().sendRedirect(contextPath);
      }
    } else {
      text.setFileFolder("/_internal/files/response/empty");
      text.setImageFolder("/_internal/files/response/empty");
      text.setReadOnlyRepository(true);
      studentbox.setVisible(false);
    }
  }
  
  private void updateStudents() {
    students.getChildren().clear();
    for(IContact student : response.getStudentList()) {
      students.appendChild(new Html(
              "<div class='ui label'>" +
              student.getName() +
              "</div>"
      ));
    }
  }
 
  /* Dao */
  
  private Dao _dao;
  
  private Dao getDao() {
    if(_dao == null) {
      _dao = new StudentsPU();
    }
    return _dao;
  }
 
}