/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2022, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.core.model;
  
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Objects;
  
  /**
   * Abstract representation of configuration elements
   * 
   * @author Ceki Gülcü
   * @since 1.3.0
   */
  public class Model implements Serializable {
  
      private static final long serialVersionUID = -797372668713068159L;
  
      // this state should not be here but should be treated via listeners
      // between processors and ModelHandlers
      boolean handled = false;
      boolean skipped = false;
  
      String tag;
      String bodyText;
      int lineNumber;
  
      List<Model> subModels = new ArrayList<>();
  
      static public Model duplicate(Model that) {
          Model copy = that.makeNewInstance();
          copy.mirror(that);
          for(Model m: that.subModels) {
              Model duplicate = duplicate(m);
              copy.subModels.add(duplicate);
          }
          return copy;
      }
      
      protected Model makeNewInstance() {
          return new Model();
      }
      
      protected void mirror(Model that) {
          this.tag = that.tag;
          this.bodyText = that.bodyText;
          this.lineNumber = that.lineNumber;
      }
      
      
      public void markAsSkipped() {
          skipped = true;
      }
      public void deepMarkAsSkipped() {
          markAsSkipped();
          for(Model m: this.getSubModels()) {
              m.deepMarkAsSkipped();
          }
      }
      /**
       * The model can re-used at reconfiguration time.
       * 
       * @since 1.3.0-alpha14
       */
      void resetForReuse() {
         this.handled = false;
         this.skipped = false;
         for(Model sub: subModels) {
             sub.resetForReuse();
         }
      }
      
      public boolean isSkipped() {
          return skipped;
      }
  
      public boolean isUnhandled() {
          return !handled;
      }
  
      public boolean isHandled() {
          return handled;
      }
  
      public void markAsHandled() {
          handled = true;
      }
 
     public String getTag() {
         return tag;
     }
 
     public void setTag(String tag) {
         this.tag = tag;
     }
 
     public int getLineNumber() {
         return lineNumber;
     }
 
     public void setLineNumber(int lineNumber) {
         this.lineNumber = lineNumber;
     }
 
     public List<Model> getSubModels() {
         return subModels;
     }
 
     public void addSubModel(Model m) {
         subModels.add(m);
     }
 
     public String getBodyText() {
         return bodyText;
     }
 
     public void addText(String bodytext) {
         if (bodyText == null)
             this.bodyText = bodytext;
         else
             this.bodyText += bodytext;
     }
 
     public String idString() {
         return "<" + tag + "> at line " + lineNumber;
     }
 
 
     @Override
     public int hashCode() {
         return Objects.hash(bodyText, lineNumber, subModels, tag);
     }
 
     @Override
     public boolean equals(Object obj) {
         if (this == obj)
             return true;
         if (obj == null)
             return false;
         if (getClass() != obj.getClass())
             return false;
         Model other = (Model) obj;
         return Objects.equals(bodyText, other.bodyText) && lineNumber == other.lineNumber
                 && Objects.equals(subModels, other.subModels) && Objects.equals(tag, other.tag);
     }
 
     
     @Override
     public String toString() {
         return this.getClass().getSimpleName() + " [tag=" + tag + ", bodyText=" + bodyText + ", id="+hashCode()+"]";
     }
 
 }