/*
    * 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
    *
   *   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 org.devacfr.maven.skins.reflow.model;
  
  import static com.google.common.base.Strings.isNullOrEmpty;
  import static java.util.Objects.requireNonNull;
  
  import java.util.List;
  import java.util.Objects;
  
  import javax.annotation.Nonnull;
  
  import org.apache.maven.doxia.site.Image;
  import org.apache.maven.doxia.site.LinkItem;
  import org.devacfr.maven.skins.reflow.ISkinConfig;
  
  import com.google.common.collect.Lists;
  
  /**
   * @author Christophe Friederich
   * @since 2.0
   */
  public class Menu {
  
      /** */
      private final String name;
  
  
  
      /** */
      private final String href;
  
      /** */
      private final Image image;
  
  
  
      /** */
      private final String target;
  
  
      /** **/
      private final String inherit;
  
      /** */
      private final boolean active;
  
      /** */
      private final List<MenuItem> menuItems = Lists.newArrayList();
  
      /**
       * Initialize with {@link LinkItem}.
       *
       * @param config
       *            a config (can <b>not</b> be {@code null}).
       * @param item
       *            link item used to.
       */
      public Menu(@Nonnull final ISkinConfig config, @Nonnull final LinkItem item) {
          Objects.requireNonNull(item);
          this.href = config.relativeLink(item.getHref());
          this.image = item.getImage();
          this.name = item.getName();
          this.target = item.getTarget();
          this.active = config.isActiveLink(this.href);
          this.inherit = null;
      }
  
      /**
       * Initialize with {@link org.apache.maven.doxia.site.Menu}.
       *
       * @param config
       *            a config (can <b>not</b> be {@code null}).
       * @param menu
       *            menu used to.
       */
      public Menu(@Nonnull final ISkinConfig config, @Nonnull final org.apache.maven.doxia.site.Menu menu) {
          Objects.requireNonNull(menu);
          this.href = null;
          this.image = menu.getImage();
          this.name = menu.getName();
          this.target = null;
          this.inherit = menu.getInherit();
         this.active = false;
         final List<org.apache.maven.doxia.site.MenuItem> items = menu.getItems();
         for (final org.apache.maven.doxia.site.MenuItem menuItem : items) {
             if (isNullOrEmpty(menu.getName())) {
                 continue;
             }
             this.menuItems.add(new MenuItem(config, menuItem));
         }
     }
 
     /**
      * @return the menuItems
      */
     public List<MenuItem> getMenuItems() {
         return menuItems;
     }
 
     /**
      * @return the name
      */
     public String getName() {
         return name;
     }
 
     /**
      * @return the inherit
      */
     public String getInherit() {
         return inherit;
     }
 
     /**
      * @return the active
      */
     public boolean isActive() {
         boolean active = this.active;
         if (active) {
             return active;
         }
         for (final MenuItem menuItem : menuItems) {
             active = menuItem.isActive();
             if (active) {
                 break;
             }
         }
         return active;
     }
 
 
 
 
     /**
      * @return the href
      */
     public String getHref() {
         return href;
     }
 
     /**
      * @return the image
      */
     public Image getImage() {
         return image;
     }
 
 
     /**
      * @return the target
      */
     public String getTarget() {
         return target;
     }
 
 
 
     /**
      * Gets indicating whether menu by their ref or name, and returns the matching results. The regex is used to check
      * the match.
      *
      * @param regex
      *            regex to use.
      * @param menu
      *            the menu to check
      * @return Returns {@code true} whether menu matches with regex.
      */
     public static boolean matches(@Nonnull final String regex, @Nonnull final org.apache.maven.doxia.site.Menu menu) {
         requireNonNull(regex);
         requireNonNull(menu);
         return menu.getRef() != null && menu.getRef().matches(regex)
                 || menu.getName() != null && menu.getName().matches(regex);
     }
 }