/*
    * Prometheus: Application Framework
    * Copyright 2012-2026. Tony Washer
    *
    * Licensed 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 io.github.tonywasher.joceanus.prometheus.preference;
  
  import io.github.tonywasher.joceanus.metis.preference.MetisPreferenceSet.MetisPreferenceItem;
  import io.github.tonywasher.joceanus.metis.ui.MetisPreferenceSetView;
  import io.github.tonywasher.joceanus.prometheus.preference.PrometheusPreferenceSet.PrometheusByteArrayPreference;
  import io.github.tonywasher.joceanus.prometheus.preference.PrometheusPreferenceSet.PrometheusCharArrayPreference;
  import io.github.tonywasher.joceanus.tethys.api.base.TethysUIAlignment;
  import io.github.tonywasher.joceanus.tethys.api.control.TethysUILabel;
  import io.github.tonywasher.joceanus.tethys.api.factory.TethysUIFactory;
  import io.github.tonywasher.joceanus.tethys.api.field.TethysUIDataEditField.TethysUICharArrayEditField;
  import io.github.tonywasher.joceanus.tethys.api.field.TethysUIFieldAttribute;
  import io.github.tonywasher.joceanus.tethys.api.pane.TethysUIGridPaneManager;
  
  /**
   * Panel for editing a preference Set.
   */
  public class PrometheusPreferenceSetView
          extends MetisPreferenceSetView {
      /**
       * Constructor.
       *
       * @param pFactory       the GUI factory
       * @param pPreferenceSet the preference set
       */
      PrometheusPreferenceSetView(final TethysUIFactory<?> pFactory,
                                  final PrometheusPreferenceSet pPreferenceSet) {
          super(pFactory, pPreferenceSet);
      }
  
      @Override
      protected PreferenceElement allocatePreferenceElement(final MetisPreferenceItem pItem) {
          if (pItem instanceof PrometheusCharArrayPreference ca) {
              return new CharArrayPreferenceElement(ca);
          } else if (pItem instanceof PrometheusByteArrayPreference) {
              return null;
          } else {
              return super.allocatePreferenceElement(pItem);
          }
      }
  
      /**
       * CharArray preference element.
       */
      private final class CharArrayPreferenceElement
              implements PreferenceElement {
          /**
           * The Preference item.
           */
          private final PrometheusCharArrayPreference theItem;
  
          /**
           * The Field item.
           */
          private final TethysUICharArrayEditField theField;
  
          /**
           * Constructor.
           *
           * @param pItem the item
           */
          CharArrayPreferenceElement(final PrometheusCharArrayPreference pItem) {
              /* Store parameters */
              theItem = pItem;
              theField = getFactory().fieldFactory().newCharArrayField();
              theField.setEditable(true);
  
              /* Create the label */
              final TethysUILabel myLabel = getFactory().controlFactory().newLabel(pItem.getDisplay() + STR_COLON);
              myLabel.setAlignment(TethysUIAlignment.EAST);
  
              /* Add to the Grid Pane */
              final TethysUIGridPaneManager myGrid = getGrid();
              myGrid.addCell(myLabel);
              myGrid.setCellAlignment(myLabel, TethysUIAlignment.EAST);
              myGrid.addCell(theField);
              myGrid.setCellColumnSpan(theField, 2);
              myGrid.allowCellGrowth(theField);
              myGrid.newRow();
  
              /* Create listener */
              theField.getEventRegistrar().addEventListener(e -> {
                  pItem.setValue(theField.getValue());
                  notifyChanges();
             });
         }
 
         @Override
         public void updateField() {
             /* Update the field */
             theField.setValue(theItem.getValue());
 
             /* Set changed indication */
             theField.setTheAttributeState(TethysUIFieldAttribute.CHANGED, theItem.isChanged());
             theField.adjustField();
 
             /* Handle hidden state */
             theField.setEnabled(!theItem.isHidden());
         }
     }
 }