/*
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * The Apereo Foundation 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 com.tle.web.template;

import com.tle.web.sections.SectionInfo;
import com.tle.web.sections.render.Label;
import com.tle.web.sections.render.TagState;
import java.util.ArrayList;
import java.util.List;

public class Breadcrumbs {
  public static final String KEY = "BREADCRUMBS_KEY"; // $NON-NLS-1$

  private final List<TagState> crumbs = new ArrayList<TagState>();
  private Label forcedLastCrumb;

  public List<TagState> getLinks() {
    return crumbs;
  }

  public Label getForcedLastCrumb() {
    return forcedLastCrumb;
  }

  public void setForcedLastCrumb(Label forcedLastCrumb) {
    this.forcedLastCrumb = forcedLastCrumb;
  }

  public void add(TagState crumb) {
    crumbs.add(crumb);
  }

  public void addToStart(TagState crumb) {
    crumbs.add(0, crumb);
  }

  public static Breadcrumbs get(SectionInfo info) {
    Breadcrumbs crumbs = info.getAttribute(KEY);
    if (crumbs == null) {
      crumbs = new Breadcrumbs();
      info.setAttribute(KEY, crumbs);
    }
    return crumbs;
  }
}
