/*
    * Copyright 2007 Hippo
    *
    * Licensed 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
    *
    * http://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 KIND, either express or implied. 
   * See the License for the specific language governing permissions and 
   * limitations under the License.
   */
  package nl.hippo.portal.cms.site;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  public class SiteMapItemImpl implements SiteMapItem {
  
      private final Map childrenMap = new HashMap();
      private final List childrenList = new ArrayList();
  
      private final List children = Collections.unmodifiableList(childrenList);
  
      private final String id;
  
      private final String name;
  
      private final SiteMapItem parent;
  
      private final int level;
  
      private final String path;
      private final String[] paths;
  
      private String title;
  
      private String src;
  
      private String template;
  
      private boolean leaf;
  
      private boolean hidden;
  
      private boolean linkable;
  
      private boolean menuItem;
  
      private Map attributes;
  
      private final SiteMap siteMap;
  
      public SiteMapItemImpl(SiteMap siteMap) {
          this.id = null;
          this.name = null;
          this.title = null;
          this.src = null;
          this.template = null;
          this.menuItem = false;
          this.parent = null;
          this.level = 0;
          this.path = "";
          this.paths = new String[0];
          this.siteMap = siteMap;
      }
  
      public SiteMapItemImpl(SiteMapItemImpl parent, String id, String name, boolean hidden, SiteMap siteMap) {
          this.id = id;
          this.name = name;
          this.parent = parent;
          this.hidden = hidden;
          this.level = parent.getLevel() + 1;
          this.path = parent.getPath() + "/" + name;
          this.paths = new String[level];
          String[] parentPaths = parent.getPaths();
          for (int i = 0; i < parentPaths.length; i++) {
              paths[i] = parentPaths[i];
          }
          paths[level - 1] = name;
          parent.addChild(name, this);
          this.siteMap = siteMap;
      }
  
      void makeLeaf(String title, String src, String template, boolean menuItem) {
          this.title = title;
          this.src = src != null && src.length() != 0 ? src : null;
          this.template = template;
          this.menuItem = menuItem;
          this.leaf = true;
          this.linkable = true;
      }
 
     void makeNotLinkableLeaf(String title, boolean menuItem) {
         this.title = title;
         this.menuItem = menuItem;
         this.leaf = true;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getSiteMap()
      */
     public SiteMap getSiteMap() {
         return siteMap;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getChild(java.lang.String)
      */
     public SiteMapItem getChild(String name) {
         return (SiteMapItem) childrenMap.get(name);
     }
 
     private void addChild(String name, SiteMapItemImpl mi) {
         childrenMap.put(name, mi);
         childrenList.add(mi);
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getChildren()
      */
     public List getChildren() {
         return children;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getSrc()
      */
     public String getSrc() {
         return src;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getLevel()
      */
     public int getLevel() {
         return level;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getId()
      */
     public String getId() {
         return id;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getName()
      */
     public String getName() {
         return name;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getParent()
      */
     public SiteMapItem getParent() {
         return parent;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getPath()
      */
     public String getPath() {
         return path;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getPaths()
      */
     public String[] getPaths() {
         return (String[]) paths.clone();
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getTemplate()
      */
     public String getTemplate() {
         return template;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getTitle()
      */
     public String getTitle() {
         return title;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#isLeaf()
      */
     public boolean isLeaf() {
         return leaf;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#isHidden()
      */
     public boolean isHidden() {
         return hidden;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#isLinkable()
      */
     public boolean isLinkable() {
         return linkable;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#isDocument()
      */
     public boolean isDocument() {
         return false;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#isMenuItem()
      */
     public boolean isMenuItem() {
         return menuItem;
     }
 
     /* (non-Javadoc)
      * @see java.lang.Comparable#compareTo(java.lang.Object)
      */
     public int compareTo(Object obj) {
         return getName().compareTo(((SiteMapItem) obj).getName());
     }
 
     /* (non-Javadoc)
      * @see java.lang.Object#equals(java.lang.Object)
      */
     public boolean equals(Object obj) {
         return obj != null && obj instanceof SiteMapItem && getPath().equals(((SiteMapItem) obj).getPath());
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#getAttribute(java.lang.String)
      */
     public String getAttribute(String attributeName) {
         if (attributes != null)
             return (String) attributes.get(attributeName);
         else
             return null;
     }
 
     /* (non-Javadoc)
      * @see nl.hippo.portal.cms.site.SiteMapItem#setAttributes(java.util.Map)
      */
     public void setAttributes(Map attributes) {
         this.attributes = new HashMap(attributes);
     }
 
     /*** getSiteMapItemsByField
      * @param smi
      * @param field
      * @param value
      * @return
      */
     public List getSiteMapItemsByField(String field, String value) {
         List result = new ArrayList();
         String thisValue = getAttribute(field);
         if (thisValue != null && thisValue.equals(value)) {
             result.add(this);
         }
         for (Iterator it = getChildren().iterator(); it.hasNext();) {
             List childResult = ((SiteMapItem) it.next()).getSiteMapItemsByField(field, value);
             if (childResult.size() > 0)
                 result.addAll(childResult);
         }
         return result;
     }
 
     public SiteMapItem getFirstMatchingSiteMapItem(String field, String value) {
         String thisValue = getAttribute(field);
         if (thisValue != null && thisValue.equals(value)) {
             return this;
         }
         for (Iterator it = getChildren().iterator(); it.hasNext();) {
             SiteMapItem childResult = ((SiteMapItem) it.next()).getFirstMatchingSiteMapItem(field, value);
             if (childResult != null)
                 return childResult;
         }
         return null;
     }
 
 }