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   *   Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache 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
   *
   *    https://www.apache.org/licenses/LICENSE-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
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   *  specific language governing permissions and limitations
   *  under the License.
   ****************************************************************/
  
  package org.apache.cayenne.modeler.dialog.datamap;
  
  import java.awt.Component;
  import java.awt.event.ActionEvent;
  import java.awt.event.ActionListener;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.regex.Pattern;
  
  import javax.swing.WindowConstants;
  
  import org.apache.cayenne.map.DataMap;
  import org.apache.cayenne.map.Embeddable;
  import org.apache.cayenne.map.EmbeddedAttribute;
  import org.apache.cayenne.map.ObjAttribute;
  import org.apache.cayenne.map.ObjEntity;
  import org.apache.cayenne.map.event.AttributeEvent;
  import org.apache.cayenne.map.event.EmbeddableEvent;
  import org.apache.cayenne.map.event.EntityEvent;
  import org.apache.cayenne.modeler.ProjectController;
  import org.apache.cayenne.util.Util;
  
  /**
   */
  public class PackageUpdateController extends DefaultsPreferencesController {
  
      public static final String ALL_CONTROL = 
              "Set/update package for all ObjEntities and Embeddables (create default class names if missing)";
      public static final String UNINIT_CONTROL = "Do not override class names with packages";
      
      protected DefaultsPreferencesView view;
  
      public PackageUpdateController(ProjectController mediator, DataMap dataMap) {
          super(mediator, dataMap);
      }
  
      /**
       * Creates and runs the package update dialog.
       */
      public void startupAction() {
          view = new DefaultsPreferencesView(ALL_CONTROL, UNINIT_CONTROL);
          view.setTitle("Update ObjEntities and Embeddables Java Package");
          initController();
          
          view.pack();
          view.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
          view.setModal(true);
          makeCloseableOnEscape();
          centerView();
          view.setVisible(true);
      }
      
      public Component getView() {
          return this.view;
      }
      
      private void initController() {
          view.getCancelButton().addActionListener(e -> view.dispose());
          view.getUpdateButton().addActionListener(e -> updatePackage());
      }
  
      protected void updatePackage() {
          boolean doAll = isAllEntities();
  
          Map<String, String> oldNameEmbeddableToNewName = new HashMap<>();
  
          // Create local copy to escape ConcurrentModificationException
          Collection<Embeddable> embeddables = new ArrayList<>(dataMap.getEmbeddables());
          for (Embeddable embeddable : embeddables) {
              String oldName = embeddable.getClassName();
  
              String[] tokens = oldName.split("\\.");
              String className = tokens[tokens.length-1];
  
              if (doAll || Util.isEmptyString(oldName) || oldName.indexOf('.') < 0) {
                  EmbeddableEvent e = new EmbeddableEvent(this, embeddable, embeddable.getClassName());
                  String newClassName = getNameWithDefaultPackage(className);
                  oldNameEmbeddableToNewName.put(oldName, newClassName);
                  embeddable.setClassName(newClassName);
                  mediator.fireEmbeddableEvent(e, mediator.getCurrentDataMap());
              }
          }
  
          for (ObjEntity entity : dataMap.getObjEntities()) {
              String oldName = getClassName(entity);
  
              if (doAll || Util.isEmptyString(oldName) || oldName.indexOf('.') < 0) {
                  String className = extractClassName(Util.isEmptyString(oldName) ? entity.getName() : oldName);
                  setClassName(entity, getNameWithDefaultPackage(className));
              }
  
              for(ObjAttribute attribute: entity.getAttributes()){
                  if(attribute instanceof EmbeddedAttribute){
                      if(oldNameEmbeddableToNewName.size()>0 && oldNameEmbeddableToNewName.containsKey(attribute.getType())){
                          attribute.setType(oldNameEmbeddableToNewName.get(attribute.getType()));
                          AttributeEvent ev = new AttributeEvent(this, attribute, entity);
                          mediator.fireObjAttributeEvent(ev);
                      }
                  }
              }
          }
  
          view.dispose();
      }
  
      protected String extractClassName(String name) {
          if (name == null) {
              return "";
          }
  
          int dot = name.lastIndexOf('.');
          return (dot < 0)
                  ? name
                  : (dot + 1 < name.length()) ? name.substring(dot + 1) : "";
      }
  
      protected String getNameWithDefaultPackage(String name) {
          return dataMap.getNameWithDefaultPackage(name);
      }
  
      protected String getClassName(ObjEntity entity) {
          return entity.getClassName();
      }
  
      protected void setClassName(ObjEntity entity, String newName) {
          if (!Util.nullSafeEquals(newName, getClassName(entity))) {
              entity.setClassName(newName);
              mediator.fireObjEntityEvent(new EntityEvent(this, entity));
          }
      }
  }
  