/*
    * 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.ui.commons.markup.html.form;
  
  import de.agilecoders.wicket.core.markup.html.bootstrap.components.TooltipConfig;
  import java.util.Iterator;
  import java.util.List;
  import java.util.regex.Pattern;
  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.wicket.Component;
  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 AjaxTextFieldPanel extends FieldPanel<String> implements Cloneable {
  
      private static final long serialVersionUID = 238940918106696068L;
  
      private Component questionMarkJexlHelp;
  
      private List<String> choices = List.of();
  
      public AjaxTextFieldPanel(final String id, final String name, final IModel<String> model) {
          this(id, name, model, true);
      }
  
      public AjaxTextFieldPanel(
              final String id, final String name, final IModel<String> model, final boolean enableOnChange) {
          super(id, name, model);
  
          questionMarkJexlHelp = Constants.getJEXLPopover(this, TooltipConfig.Placement.right);
          add(questionMarkJexlHelp.setVisible(false));
  
          final AutoCompleteSettings settings = new AutoCompleteSettings();
          settings.setShowCompleteListOnFocusGain(true);
          settings.setShowListOnEmptyInput(true);
          settings.setCssClassName("custom-autocomplete-box");
  
          field = new AutoCompleteTextField<>("textField", model, settings) {
  
              private static final long serialVersionUID = -6648767303091874219L;
  
              @Override
              protected Iterator<String> getChoices(final String input) {
                  return AjaxTextFieldPanel.this.getChoices(input);
              }
  
              @Override
              protected AutoCompleteBehavior<String> newAutoCompleteBehavior(
                  final IAutoCompleteRenderer<String> renderer, final AutoCompleteSettings settings) {
                  return new IndicatorAutoCompleteBehavior<>(renderer, settings) {
  
                      private static final long serialVersionUID = 1070808433195962931L;
  
                      @Override
                      protected Iterator<String> getChoices(final String input) {
                          return AjaxTextFieldPanel.this.getChoices(input);
                      }
                  };
              }
          };
          add(field.setLabel(new ResourceModel(name, name)).setOutputMarkupId(true));
  
          if (enableOnChange && !isReadOnly()) {
              field.add(new IndicatorAjaxFormComponentUpdatingBehavior(Constants.ON_CHANGE) {
  
                  private static final long serialVersionUID = -1107858522700306810L;
  
                  @Override
                  protected void onUpdate(final AjaxRequestTarget target) {
                      // nothing to do
                  }
              });
          }
      }
  
     public void addValidator(final IValidator<? super String> validator) {
         this.field.add(validator);
     }
 
     public void setChoices(final List<String> choices) {
         if (choices != null) {
             this.choices = choices;
         }
     }
 
     public FieldPanel<String> enableJexlHelp() {
         questionMarkJexlHelp.setVisible(true);
         return this;
     }
 
     public FieldPanel<String> enableJexlHelp(final String... jexlExamples) {
         questionMarkJexlHelp = Constants.getJEXLPopover(this, TooltipConfig.Placement.bottom, jexlExamples);
         addOrReplace(questionMarkJexlHelp.setVisible(true));
         return this;
     }
 
     protected Iterator<String> getChoices(final String input) {
         Pattern pattern = Pattern.compile(".*" + Pattern.quote(input) + ".*", Pattern.CASE_INSENSITIVE);
         return choices.stream().filter(pattern.asMatchPredicate()).iterator();
     }
 
     @Override
     public FieldPanel<String> clone() {
         final AjaxTextFieldPanel panel = (AjaxTextFieldPanel) super.clone();
         panel.setChoices(choices);
         return panel;
     }
 }