/*
    * 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.wicket.markup.html.form;
  
  import java.util.Iterator;
  import java.util.List;
  import org.apache.syncope.client.ui.commons.Constants;
  import org.apache.syncope.client.ui.commons.ajax.form.IndicatorAjaxFormComponentUpdatingBehavior;
  import org.apache.syncope.client.ui.commons.ajax.form.IndicatorAutoCompleteBehavior;
  import org.apache.syncope.client.ui.commons.markup.html.form.FieldPanel;
  import org.apache.wicket.ajax.AjaxRequestTarget;
  import org.apache.wicket.extensions.ajax.markup.html.autocomplete.AutoCompleteBehavior;
  import org.apache.wicket.extensions.ajax.markup.html.autocomplete.AutoCompleteSettings;
  import org.apache.wicket.extensions.ajax.markup.html.autocomplete.AutoCompleteTextField;
  import org.apache.wicket.extensions.ajax.markup.html.autocomplete.IAutoCompleteRenderer;
  import org.apache.wicket.model.IModel;
  import org.apache.wicket.model.ResourceModel;
  import org.apache.wicket.validation.IValidator;
  
  public class AjaxSearchFieldPanel extends FieldPanel<String> implements Cloneable {
  
      private static final long serialVersionUID = 6890905510177974519L;
  
      private List<String> choices = List.of();
  
      private final IAutoCompleteRenderer<String> renderer;
  
      private final AutoCompleteSettings settings;
  
      public AjaxSearchFieldPanel(final String id, final String name, final IModel<String> model) {
          this(id, name, model, null, null);
      }
  
      public AjaxSearchFieldPanel(
              final String id, final String name,
              final IModel<String> model,
              final AutoCompleteSettings settings) {
          this(id, name, model, null, settings);
      }
  
      public AjaxSearchFieldPanel(
              final String id, final String name,
              final IModel<String> model,
              final IAutoCompleteRenderer<String> renderer,
              final AutoCompleteSettings settings) {
          super(id, name, model);
  
          this.settings = settings;
          this.renderer = renderer;
  
          field = new AutoCompleteTextField<>("textField", model, settings) {
  
              private static final long serialVersionUID = -6648767303091874219L;
  
              @Override
              protected Iterator<String> getChoices(final String input) {
                  return AjaxSearchFieldPanel.this.getChoices(input);
              }
  
              @Override
              protected AutoCompleteBehavior<String> newAutoCompleteBehavior(
                  final IAutoCompleteRenderer<String> renderer, final AutoCompleteSettings settings) {
  
                  return new IndicatorAutoCompleteBehavior<>(
                      AjaxSearchFieldPanel.this.renderer != null ? AjaxSearchFieldPanel.this.renderer : renderer,
                      AjaxSearchFieldPanel.this.settings != null ? AjaxSearchFieldPanel.this.settings : settings) {
  
                      private static final long serialVersionUID = 1070808433195962931L;
  
                      @Override
                      protected Iterator<String> getChoices(final String input) {
                          return AjaxSearchFieldPanel.this.getChoices(input);
                      }
                  };
              }
          };
          add(field.setLabel(new ResourceModel(name, name)).setOutputMarkupId(true));
  
          if (!isReadOnly()) {
              field.add(new IndicatorAjaxFormComponentUpdatingBehavior(Constants.ON_CHANGE) {
  
                  private static final long serialVersionUID = -6139318907146065915L;
  
                 @Override
                 protected void onUpdate(final AjaxRequestTarget target) {
                     AjaxSearchFieldPanel.this.onUpdateBehavior();
                 }
             });
         }
     }
 
     @Override
     public FieldPanel<String> setRequired(final boolean required) {
         return super.setRequired(required);
     }
 
     public List<String> getChoices() {
         return choices;
     }
 
     public void addValidator(final IValidator<String> validator) {
         this.field.add(validator);
     }
 
     public void onUpdateBehavior() {
     }
 
     protected Iterator<String> getChoices(final String input) {
         return choices.iterator();
     }
 
     @Override
     public FieldPanel<String> clone() {
         final AjaxSearchFieldPanel panel = (AjaxSearchFieldPanel) super.clone();
         return panel;
     }
 }