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   *  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
   *
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  package org.apache.cayenne.modeler.undo;
  
  import javax.swing.undo.CannotRedoException;
  import javax.swing.undo.CannotUndoException;
  
  import org.apache.cayenne.map.DbAttribute;
  import org.apache.cayenne.map.DbEntity;
  import org.apache.cayenne.map.Embeddable;
  import org.apache.cayenne.map.EmbeddableAttribute;
  import org.apache.cayenne.map.ObjAttribute;
  import org.apache.cayenne.map.ObjEntity;
  import org.apache.cayenne.modeler.action.CreateAttributeAction;
  import org.apache.cayenne.modeler.action.RemoveAttributeAction;
  
  public class RemoveAttributeUndoableEdit extends BaseRemovePropertyUndoableEdit {
  
      private DbAttribute[] dbAttributes;
      private ObjAttribute[] objAttributes;
      private EmbeddableAttribute[] embeddableAttrs;
  
      public RemoveAttributeUndoableEdit(Embeddable embeddable, EmbeddableAttribute[] embeddableAttributes) {
          super();
          this.embeddable = embeddable;
          this.embeddableAttrs = embeddableAttributes;
      }
  
      public RemoveAttributeUndoableEdit(ObjEntity entity, ObjAttribute[] objAttributes) {
          this.objEntity = entity;
          this.objAttributes = objAttributes;
      }
  
      public RemoveAttributeUndoableEdit(DbEntity entity, DbAttribute[] dbAttributes) {
          this.dbEntity = entity;
          this.dbAttributes = dbAttributes;
      }
  
      @Override
      public void redo() throws CannotRedoException {
          RemoveAttributeAction action = actionManager.getAction(RemoveAttributeAction.class);
  
          if (objEntity != null) {
              action.removeObjAttributes(objEntity, objAttributes);
              focusObjEntity();
          }
  
          if (dbEntity != null) {
              action.removeDbAttributes(dbEntity.getDataMap(), dbEntity, dbAttributes);
              focusDBEntity();
          }
  
          if (embeddable != null) {
              action.removeEmbeddableAttributes(embeddable, embeddableAttrs);
              focusEmbeddable();
          }
      }
  
      @Override
      public void undo() throws CannotUndoException {
          CreateAttributeAction action = actionManager.getAction(CreateAttributeAction.class);
  
          if (objEntity != null) {
              for (ObjAttribute attr : objAttributes) {
                  action.createObjAttribute(objEntity.getDataMap(), objEntity, attr);
              }
              focusObjEntity();
          }
  
          if (dbEntity != null) {
              for (DbAttribute attr : dbAttributes) {
                  action.createDbAttribute(dbEntity.getDataMap(), dbEntity, attr);
              }
              focusDBEntity();
          }
  
          if (embeddable != null) {
              for (EmbeddableAttribute attr : embeddableAttrs) {
                  action.createEmbAttribute(embeddable, attr);
              }
              focusEmbeddable();
          }
      }
  
      @Override
      public String getPresentationName() {
          if (objEntity != null) {
              return (objAttributes.length > 1) ? "Remove ObjAttributes" : "Remove ObjAttribute";
          }
  
          if (dbEntity != null) {
              return (dbAttributes.length > 1) ? "Remove DbAttributes" : "Remove DbAttribute";
          }
  
          if (embeddableAttrs != null) {
              return (embeddableAttrs.length > 1) ? "Remove Embeddable Attributes" : "Remove Embeddable Attribute";
          }
  
          return super.getPresentationName();
      }
  }
  