/*
    * 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.apache.syncope.client.console.wizards.mapping;
  
  import java.io.Serializable;
  import java.util.List;
  import java.util.stream.Collectors;
  import org.apache.commons.lang3.StringUtils;
  import org.apache.syncope.client.console.panels.TogglePanel;
  import org.apache.syncope.client.console.rest.ImplementationRestClient;
  import org.apache.syncope.client.ui.commons.Constants;
  import org.apache.syncope.client.ui.commons.markup.html.form.AjaxPalettePanel;
  import org.apache.syncope.common.lib.to.ImplementationTO;
  import org.apache.syncope.common.lib.to.Item;
  import org.apache.syncope.common.lib.types.IdRepoImplementationType;
  import org.apache.wicket.PageReference;
  import org.apache.wicket.ajax.AjaxRequestTarget;
  import org.apache.wicket.ajax.markup.html.form.AjaxSubmitLink;
  import org.apache.wicket.markup.html.WebMarkupContainer;
  import org.apache.wicket.markup.html.form.Form;
  import org.apache.wicket.markup.html.form.IChoiceRenderer;
  import org.apache.wicket.model.IModel;
  import org.apache.wicket.model.LoadableDetachableModel;
  import org.apache.wicket.model.util.ListModel;
  import org.apache.wicket.spring.injection.annot.SpringBean;
  
  public class ItemTransformersTogglePanel extends TogglePanel<Serializable> {
  
      private static final long serialVersionUID = -3195479265440591519L;
  
      @SpringBean
      protected ImplementationRestClient implementationRestClient;
  
      protected Item item;
  
      public ItemTransformersTogglePanel(final WebMarkupContainer container, final PageReference pageRef) {
          super(Constants.OUTER, "itemTransformersTogglePanel", pageRef);
  
          final LoadableDetachableModel<List<String>> model = new LoadableDetachableModel<>() {
  
              private static final long serialVersionUID = 5275935387613157437L;
  
              @Override
              protected List<String> load() {
                  // [!] this is required to disable changed with close button
                  return item == null
                          ? List.of()
                          : item.getTransformers();
              }
          };
  
          Form<?> form = new Form<>("form");
          addInnerObject(form);
  
          List<String> choices = implementationRestClient.list(IdRepoImplementationType.ITEM_TRANSFORMER).stream().
                  map(ImplementationTO::getKey).sorted().collect(Collectors.toList());
  
          form.add(new AjaxPalettePanel.Builder<String>().setAllowOrder(true).setRenderer(new IChoiceRenderer<>() {
  
              private static final long serialVersionUID = 3464376099975468136L;
  
              private static final int MAX_LENGTH = 50;
  
              @Override
              public Object getDisplayValue(final String object) {
                  if (object.length() > MAX_LENGTH) {
                      return "..." + object.substring(object.length() - MAX_LENGTH);
                  } else {
                      return object;
                  }
              }
  
              @Override
              public String getIdValue(final String object, final int index) {
                  return object;
              }
  
              @Override
              public String getObject(final String id, final IModel<? extends List<? extends String>> choices) {
                  return id;
              }
          }).build(
                  "classes",
                 model,
                 new ListModel<>(choices)).
                 hideLabel().setEnabled(true).setOutputMarkupId(true));
 
         form.add(new AjaxSubmitLink("submit", form) {
 
             private static final long serialVersionUID = 5538299138211283825L;
 
             @Override
             public void onSubmit(final AjaxRequestTarget target) {
                 toggle(target, false);
                 target.add(container);
             }
 
         });
     }
 
     public ItemTransformersTogglePanel setItem(final AjaxRequestTarget target, final Item item) {
         this.item = item;
         setHeader(target, StringUtils.EMPTY);
         return this;
     }
 }